feat: demo of spi - st7567 12864 lcd
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IOsetting
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demo/spi/st7567/st7567.c
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540
demo/spi/st7567/st7567.c
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// Copyright 2021 IOsetting <iosetting(at)outlook.com>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "st7567.h"
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#include <string.h>
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/* Absolute value */
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#define ABS(x) ((x) > 0 ? (x) : -(x))
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/* ST7567 data buffer */
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static __XDATA uint8_t ST7567_Buffer_all[(ST7567_WIDTH + ST7567_SEG_EXPAND) * ST7567_HEIGHT / 8];
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/* Private ST7567 structure */
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typedef struct {
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uint16_t CurrentX;
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uint16_t CurrentY;
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uint8_t Inverted;
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uint8_t Initialized;
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} ST7567_t;
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/* Private variable */
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static __XDATA ST7567_t ST7567;
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static void ST7567_TransmitByte(uint8_t dat)
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{
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ST7567_CS = 0;
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SPI_TxRx(dat);
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ST7567_CS = 1;
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}
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static void ST7567_Transmit(const uint8_t *pData, uint32_t Size)
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{
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ST7567_CS = 0;
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while (Size--)
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{
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SPI_TxRx(*pData++);
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}
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ST7567_CS = 1;
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}
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void ST7567_WriteCommand(uint8_t command)
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{
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ST7567_DC = 0;
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ST7567_TransmitByte(command);
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ST7567_DC = 1;
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}
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void ST7567_WriteData(uint8_t dat)
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{
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ST7567_TransmitByte(dat);
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}
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void ST7567_Init(void)
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{
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ST7567_Reset();
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ST7567_BackLight_On();
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ST7567_WriteCommand(ST7567_RESET);
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// adjust contrast
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ST7567_WriteCommand(ST7567_SET_EV);
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ST7567_WriteCommand(ST7567_SET_EV_MASK & 0x20);
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// adjust regular voltage. LCD may fail to display if it is set too low.
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ST7567_WriteCommand(ST7567_REGULATION_RATIO | ST7567_REGULATION_RATIO_5_0);
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ST7567_WriteCommand(ST7567_BIAS_1_9);
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ST7567_WriteCommand(ST7567_X_ORIENT);
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ST7567_WriteCommand(ST7567_Y_ORIENT);
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ST7567_WriteCommand(ST7567_INVERSE_DISPLAY_OFF);
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// Start from line 0
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ST7567_WriteCommand(ST7567_SET_START_LINE | (0x00 & ST7567_SET_START_LINE_MASK));
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// Start from page 0
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ST7567_WriteCommand(ST7567_SET_PAGE_ADDRESS | (0x00 & ST7567_SET_PAGE_ADDRESS_MASK));
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// Start from column 0
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ST7567_WriteCommand(ST7567_SET_COLUMN_ADDRESS_MSB | (0x00 & ST7567_SET_COLUMN_ADDRESS_MSB_MASK));
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ST7567_WriteCommand(ST7567_SET_COLUMN_ADDRESS_LSB | (0x00 & ST7567_SET_COLUMN_ADDRESS_LSB_MASK));
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// power control, LCD may fail to display if it is not properly set.
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// recommend to set them all
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ST7567_WriteCommand(ST7567_POWER_CONTROL
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|ST7567_POWER_CONTROL_VB
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|ST7567_POWER_CONTROL_VR
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|ST7567_POWER_CONTROL_VF);
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ST7567_WriteCommand(ST7567_DISPLAY_ON);
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ST7567_WriteCommand(ST7567_ALL_PIXEL_NORMAL);
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}
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void ST7567_Reset(void)
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{
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ST7567_RES = 0;
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SYS_Delay(5);
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ST7567_RES = 1;
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}
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void ST7567_BackLight_On(void)
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{
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ST7567_BL = 1;
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}
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void ST7567_BackLight_Off(void)
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{
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ST7567_BL = 0;
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}
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void ST7567_SetContrast(uint8_t val)
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{
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ST7567_WriteCommand(ST7567_SET_EV);
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ST7567_WriteCommand(ST7567_SET_EV_MASK & val);
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}
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void ST7567_UpdateScreen(void)
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{
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ST7567_WriteCommand(ST7567_SET_PAGE_ADDRESS | (0x00 & ST7567_SET_PAGE_ADDRESS_MASK));
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ST7567_WriteCommand(ST7567_SET_COLUMN_ADDRESS_MSB);
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ST7567_WriteCommand(ST7567_SET_COLUMN_ADDRESS_LSB);
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ST7567_Transmit(ST7567_Buffer_all, sizeof(ST7567_Buffer_all));
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}
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void ST7567_ToggleInvert(void)
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{
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/* Toggle invert */
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ST7567.Inverted = !ST7567.Inverted;
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if (ST7567.Inverted)
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{
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ST7567_WriteCommand(ST7567_INVERSE_DISPLAY_ON);
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}
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else
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{
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ST7567_WriteCommand(ST7567_INVERSE_DISPLAY_OFF);
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}
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}
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void ST7567_Fill(uint8_t color)
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{
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/* Set memory */
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memset(ST7567_Buffer_all, (color == ST7567_COLOR_BACK) ? 0x00 : 0xFF, sizeof(ST7567_Buffer_all));
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}
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void ST7567_DrawPixel(uint16_t x, uint16_t y, uint8_t color)
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{
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if (x >= ST7567_WIDTH || y >= ST7567_HEIGHT)
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{
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/* Error */
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return;
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}
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if (color == ST7567_COLOR_FRONT)
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{
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ST7567_Buffer_all[ST7567_X_OFFSET + x + (y / 8) * (ST7567_WIDTH + ST7567_SEG_EXPAND)] |= 1 << (y % 8);
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}
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else
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{
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ST7567_Buffer_all[ST7567_X_OFFSET + x + (y / 8) * (ST7567_WIDTH + ST7567_SEG_EXPAND)] &= ~(1 << (y % 8));
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}
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}
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void ST7567_GotoXY(uint16_t x, uint16_t y)
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{
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/* Set write pointers */
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ST7567.CurrentX = x;
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ST7567.CurrentY = y;
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}
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char ST7567_Putc(char ch, FontDef_t* font, uint8_t color)
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{
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uint32_t i, b, j, k;
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for (i = 0; i < font->height; i++)
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{
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for (j = 0; j < font->bytes; j++)
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{
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b = font->dat[((ch - 32) * font->height + i) * font->bytes + j];
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if (font->order == 0)
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{
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for (k = 0; k < 8 && k < font->width - j * 8; k++)
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{
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if ((b << k) & 0x80)
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{
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ST7567_DrawPixel(ST7567.CurrentX + (j * 8) + k, (ST7567.CurrentY + i), (uint8_t) color);
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}
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else
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{
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ST7567_DrawPixel(ST7567.CurrentX + (j * 8) + k, (ST7567.CurrentY + i), (uint8_t) !color);
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}
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}
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}
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else
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{
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for (k = 0; k < 8 && k < font->width - j * 8; k++)
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{
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if (b & (0x0001 << k))
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{
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ST7567_DrawPixel(ST7567.CurrentX + (j * 8) + k, (ST7567.CurrentY + i), (uint8_t) color);
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}
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else
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{
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ST7567_DrawPixel(ST7567.CurrentX + (j * 8) + k, (ST7567.CurrentY + i), (uint8_t) !color);
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}
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}
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}
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}
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}
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/* Increase pointer */
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ST7567.CurrentX += font->width + 1;
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/* Return character written */
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return ch;
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}
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char ST7567_Puts(char* str, FontDef_t* Font, uint8_t color)
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{
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/* Write characters */
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while (*str)
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{
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/* Write character by character */
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if (ST7567_Putc(*str, Font, color) != *str)
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{
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/* Return error */
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return *str;
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}
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/* Increase string pointer */
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str++;
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}
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/* Everything OK, zero should be returned */
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return *str;
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}
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void ST7567_DrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t c)
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{
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int16_t dx, dy, sx, sy, err, e2, i, tmp;
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/* Check for overflow */
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if (x0 >= ST7567_WIDTH)
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{
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x0 = ST7567_WIDTH - 1;
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}
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if (x1 >= ST7567_WIDTH)
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{
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x1 = ST7567_WIDTH - 1;
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}
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if (y0 >= ST7567_HEIGHT)
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{
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y0 = ST7567_HEIGHT - 1;
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}
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if (y1 >= ST7567_HEIGHT)
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{
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y1 = ST7567_HEIGHT - 1;
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}
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dx = (x0 < x1) ? (x1 - x0) : (x0 - x1);
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dy = (y0 < y1) ? (y1 - y0) : (y0 - y1);
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sx = (x0 < x1) ? 1 : -1;
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sy = (y0 < y1) ? 1 : -1;
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err = ((dx > dy) ? dx : -dy) / 2;
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if (dx == 0)
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{
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if (y1 < y0)
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{
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tmp = y1;
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y1 = y0;
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y0 = tmp;
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}
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if (x1 < x0)
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{
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tmp = x1;
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x1 = x0;
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x0 = tmp;
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}
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/* Vertical line */
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for (i = y0; i <= y1; i++)
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{
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ST7567_DrawPixel(x0, i, c);
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}
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/* Return from function */
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return;
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}
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if (dy == 0)
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{
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if (y1 < y0)
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{
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tmp = y1;
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y1 = y0;
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y0 = tmp;
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}
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if (x1 < x0)
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{
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tmp = x1;
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x1 = x0;
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x0 = tmp;
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}
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/* Horizontal line */
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for (i = x0; i <= x1; i++)
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{
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ST7567_DrawPixel(i, y0, c);
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}
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/* Return from function */
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return;
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}
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while (1)
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{
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ST7567_DrawPixel(x0, y0, c);
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if (x0 == x1 && y0 == y1)
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{
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break;
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}
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e2 = err;
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if (e2 > -dx)
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{
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err -= dy;
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x0 += sx;
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}
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if (e2 < dy)
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{
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err += dx;
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y0 += sy;
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}
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}
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}
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static __CODE uint8_t Font3x5 [] = {
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0x00, 0x00, 0x00, 0x00, 0x00, // SP
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0x02, 0x02, 0x02, 0x00, 0x02, // !
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0x05, 0x05, 0x00, 0x00, 0x00, // "
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0x05, 0x07, 0x05, 0x07, 0x05, // #
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0x06, 0x03, 0x06, 0x03, 0x02, // $
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0x01, 0x04, 0x02, 0x01, 0x04, // %
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0x03, 0x03, 0x07, 0x05, 0x06, // &
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0x02, 0x02, 0x00, 0x00, 0x00, // '
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0x04, 0x02, 0x02, 0x02, 0x04, // (
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0x01, 0x02, 0x02, 0x02, 0x01, // )
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0x05, 0x02, 0x05, 0x00, 0x00, // *
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0x00, 0x02, 0x07, 0x02, 0x00, // +
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0x00, 0x00, 0x00, 0x02, 0x01, // ,
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0x00, 0x00, 0x07, 0x00, 0x00, // -
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0x00, 0x00, 0x00, 0x00, 0x02, // .
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0x00, 0x04, 0x02, 0x01, 0x00, // /
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0x07, 0x05, 0x05, 0x05, 0x07, // 0
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0x02, 0x03, 0x02, 0x02, 0x07, // 1
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0x07, 0x04, 0x07, 0x01, 0x07, // 2
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0x07, 0x04, 0x06, 0x04, 0x07, // 3
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0x05, 0x05, 0x07, 0x04, 0x04, // 4
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0x07, 0x01, 0x07, 0x04, 0x07, // 5
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0x07, 0x01, 0x07, 0x05, 0x07, // 6
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0x07, 0x04, 0x04, 0x04, 0x04, // 7
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0x07, 0x05, 0x07, 0x05, 0x07, // 8
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0x07, 0x05, 0x07, 0x04, 0x07, // 9
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0x00, 0x02, 0x00, 0x02, 0x00, // :
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0x00, 0x02, 0x00, 0x02, 0x01, // ;
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0x04, 0x02, 0x01, 0x02, 0x04, // <
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0x00, 0x07, 0x00, 0x07, 0x00, // =
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0x01, 0x02, 0x04, 0x02, 0x01, // >
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0x07, 0x04, 0x02, 0x00, 0x02, // ?
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0x02, 0x05, 0x07, 0x01, 0x06, // @
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0x02, 0x05, 0x07, 0x05, 0x05, // A
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0x03, 0x05, 0x03, 0x05, 0x03, // B
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0x06, 0x01, 0x01, 0x01, 0x06, // C
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0x03, 0x05, 0x05, 0x05, 0x03, // D
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0x07, 0x01, 0x07, 0x01, 0x07, // E
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0x07, 0x01, 0x07, 0x01, 0x01, // F
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0x06, 0x01, 0x07, 0x05, 0x06, // G
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0x05, 0x05, 0x07, 0x05, 0x05, // H
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0x07, 0x02, 0x02, 0x02, 0x07, // I
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0x04, 0x04, 0x04, 0x05, 0x02, // J
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0x05, 0x05, 0x03, 0x05, 0x05, // K
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0x01, 0x01, 0x01, 0x01, 0x07, // L
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0x05, 0x07, 0x07, 0x05, 0x05, // M
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0x05, 0x07, 0x07, 0x07, 0x05, // N
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0x02, 0x05, 0x05, 0x05, 0x02, // O
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0x03, 0x05, 0x03, 0x01, 0x01, // P
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0x02, 0x05, 0x05, 0x05, 0x06, // Q
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0x03, 0x05, 0x07, 0x03, 0x05, // R
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0x06, 0x01, 0x02, 0x04, 0x03, // S
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0x07, 0x02, 0x02, 0x02, 0x02, // T
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0x05, 0x05, 0x05, 0x05, 0x02, // U
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0x05, 0x05, 0x05, 0x02, 0x02, // V
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0x05, 0x05, 0x07, 0x07, 0x05, // W
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0x05, 0x05, 0x02, 0x05, 0x05, // X
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0x05, 0x05, 0x02, 0x02, 0x02, // Y
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0x07, 0x04, 0x02, 0x01, 0x07, // Z
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0x03, 0x01, 0x01, 0x01, 0x03, // [
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0x00, 0x01, 0x02, 0x04, 0x00, /* \ */
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0x06, 0x04, 0x04, 0x04, 0x06, // ]
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0x02, 0x05, 0x00, 0x00, 0x00, // ^
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0x00, 0x00, 0x00, 0x00, 0x07, // _
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0x01, 0x02, 0x00, 0x00, 0x00, // `
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0x00, 0x03, 0x06, 0x05, 0x07, // a
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0x01, 0x03, 0x05, 0x05, 0x03, // b
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0x00, 0x06, 0x01, 0x01, 0x06, // c
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0x04, 0x06, 0x05, 0x05, 0x06, // d
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0x00, 0x06, 0x05, 0x03, 0x06, // e
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0x04, 0x02, 0x07, 0x02, 0x02, // f
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0x06, 0x05, 0x07, 0x04, 0x02, // g
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0x01, 0x03, 0x05, 0x05, 0x05, // h
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0x02, 0x00, 0x02, 0x02, 0x02, // i
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0x04, 0x00, 0x04, 0x04, 0x03, // j
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0x01, 0x05, 0x03, 0x03, 0x05, // k
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0x03, 0x02, 0x02, 0x02, 0x07, // l
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0x00, 0x07, 0x07, 0x07, 0x05, // m
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0x00, 0x03, 0x05, 0x05, 0x05, // n
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0x00, 0x02, 0x05, 0x05, 0x02, // o
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0x00, 0x03, 0x05, 0x03, 0x01, // p
|
||||
0x00, 0x06, 0x05, 0x06, 0x04, // q
|
||||
0x00, 0x06, 0x01, 0x01, 0x01, // r
|
||||
0x00, 0x06, 0x03, 0x06, 0x03, // s
|
||||
0x02, 0x07, 0x02, 0x02, 0x06, // t
|
||||
0x00, 0x05, 0x05, 0x05, 0x06, // u
|
||||
0x00, 0x05, 0x05, 0x05, 0x02, // v
|
||||
0x00, 0x05, 0x07, 0x07, 0x07, // w
|
||||
0x00, 0x05, 0x02, 0x02, 0x05, // x
|
||||
0x00, 0x05, 0x06, 0x04, 0x06, // y
|
||||
0x00, 0x07, 0x06, 0x03, 0x07, // z
|
||||
0x06, 0x02, 0x01, 0x02, 0x06, // {
|
||||
0x02, 0x02, 0x02, 0x02, 0x02, // |
|
||||
0x03, 0x02, 0x04, 0x02, 0x03, // }
|
||||
0x00, 0x06, 0x03, 0x00, 0x00, // ~
|
||||
0x07, 0x07, 0x07, 0x07, 0x07, // DEL
|
||||
};
|
||||
|
||||
static __CODE uint8_t Font5x7 [] = {
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //
|
||||
0x04, 0x04, 0x04, 0x04, 0x00, 0x04, 0x00, // !
|
||||
0x0a, 0x0a, 0x0a, 0x00, 0x00, 0x00, 0x00, // "
|
||||
0x0a, 0x0a, 0x1f, 0x0a, 0x1f, 0x0a, 0x0a, // #
|
||||
0x04, 0x1e, 0x05, 0x0e, 0x14, 0x0f, 0x04, // $
|
||||
0x00, 0x19, 0x1a, 0x04, 0x0b, 0x13, 0x00, // %
|
||||
0x06, 0x09, 0x05, 0x02, 0x15, 0x09, 0x16, // &
|
||||
0x06, 0x04, 0x02, 0x00, 0x00, 0x00, 0x00, // '
|
||||
0x08, 0x04, 0x02, 0x02, 0x02, 0x04, 0x08, // (
|
||||
0x02, 0x04, 0x08, 0x08, 0x08, 0x04, 0x02, // )
|
||||
0x00, 0x04, 0x15, 0x0e, 0x15, 0x04, 0x00, // *
|
||||
0x00, 0x04, 0x04, 0x1f, 0x04, 0x04, 0x00, // +
|
||||
0x00, 0x00, 0x00, 0x00, 0x0c, 0x08, 0x04, // ,
|
||||
0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, // -
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x06, // .
|
||||
0x00, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00, // /
|
||||
0x0e, 0x11, 0x19, 0x15, 0x13, 0x11, 0x0e, // 0
|
||||
0x04, 0x06, 0x04, 0x04, 0x04, 0x04, 0x0e, // 1
|
||||
0x0e, 0x11, 0x10, 0x08, 0x04, 0x02, 0x1f, // 2
|
||||
0x1f, 0x08, 0x04, 0x08, 0x10, 0x11, 0x0e, // 3
|
||||
0x08, 0x0c, 0x0a, 0x09, 0x1f, 0x08, 0x08, // 4
|
||||
0x1f, 0x01, 0x0f, 0x10, 0x10, 0x11, 0x0e, // 5
|
||||
0x0c, 0x02, 0x01, 0x0f, 0x11, 0x11, 0x0e, // 6
|
||||
0x1f, 0x10, 0x08, 0x04, 0x02, 0x02, 0x02, // 7
|
||||
0x0e, 0x11, 0x11, 0x0e, 0x11, 0x11, 0x0e, // 8
|
||||
0x0e, 0x11, 0x11, 0x1e, 0x10, 0x08, 0x06, // 9
|
||||
0x00, 0x06, 0x06, 0x00, 0x06, 0x06, 0x00, // :
|
||||
0x00, 0x06, 0x06, 0x00, 0x06, 0x04, 0x02, // ;
|
||||
0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, // <
|
||||
0x00, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x00, // =
|
||||
0x02, 0x04, 0x08, 0x10, 0x08, 0x04, 0x02, // >
|
||||
0x0e, 0x11, 0x10, 0x08, 0x04, 0x00, 0x04, // ?
|
||||
0x0e, 0x11, 0x10, 0x16, 0x1d, 0x11, 0x0e, // @
|
||||
0x0e, 0x11, 0x11, 0x11, 0x1f, 0x11, 0x11, // A
|
||||
0x0f, 0x11, 0x11, 0x0f, 0x11, 0x11, 0x0f, // B
|
||||
0x0e, 0x11, 0x01, 0x01, 0x01, 0x11, 0x0e, // C
|
||||
0x07, 0x09, 0x11, 0x11, 0x11, 0x09, 0x07, // D
|
||||
0x1f, 0x01, 0x01, 0x0f, 0x01, 0x01, 0x1f, // E
|
||||
0x1f, 0x01, 0x01, 0x0f, 0x01, 0x01, 0x01, // F
|
||||
0x0e, 0x11, 0x01, 0x1d, 0x11, 0x11, 0x1e, // G
|
||||
0x11, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x11, // H
|
||||
0x0e, 0x04, 0x04, 0x04, 0x04, 0x04, 0x0e, // I
|
||||
0x1c, 0x08, 0x08, 0x08, 0x08, 0x09, 0x06, // J
|
||||
0x11, 0x09, 0x05, 0x03, 0x05, 0x09, 0x11, // K
|
||||
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x1f, // L
|
||||
0x11, 0x1b, 0x15, 0x15, 0x11, 0x11, 0x11, // M
|
||||
0x11, 0x11, 0x13, 0x15, 0x19, 0x11, 0x11, // N
|
||||
0x0e, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0e, // O
|
||||
0x0f, 0x11, 0x11, 0x0f, 0x01, 0x01, 0x01, // P
|
||||
0x0e, 0x11, 0x11, 0x11, 0x15, 0x09, 0x16, // Q
|
||||
0x0f, 0x11, 0x11, 0x0f, 0x05, 0x09, 0x11, // R
|
||||
0x1e, 0x01, 0x01, 0x0e, 0x10, 0x10, 0x0f, // S
|
||||
0x1f, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, // T
|
||||
0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0e, // U
|
||||
0x11, 0x11, 0x11, 0x11, 0x11, 0x0a, 0x04, // V
|
||||
0x11, 0x11, 0x11, 0x15, 0x15, 0x15, 0x0a, // W
|
||||
0x11, 0x11, 0x0a, 0x04, 0x0a, 0x11, 0x11, // X
|
||||
0x11, 0x11, 0x11, 0x0a, 0x04, 0x04, 0x04, // Y
|
||||
0x1f, 0x10, 0x08, 0x04, 0x02, 0x01, 0x1f, // Z
|
||||
0x0e, 0x02, 0x02, 0x02, 0x02, 0x02, 0x0e, // [
|
||||
0x15, 0x0a, 0x15, 0x0a, 0x15, 0x0a, 0x15, /* \ */
|
||||
0x0e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x0e, // ]
|
||||
0x04, 0x0a, 0x11, 0x00, 0x00, 0x00, 0x00, // ^
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, // _
|
||||
0x02, 0x04, 0x08, 0x00, 0x00, 0x00, 0x00, // `
|
||||
0x00, 0x00, 0x0e, 0x10, 0x1e, 0x11, 0x1e, // a
|
||||
0x01, 0x01, 0x0d, 0x13, 0x11, 0x11, 0x0f, // b
|
||||
0x00, 0x00, 0x0e, 0x01, 0x01, 0x11, 0x0e, // c
|
||||
0x10, 0x10, 0x16, 0x19, 0x11, 0x11, 0x1e, // d
|
||||
0x00, 0x00, 0x0e, 0x11, 0x1f, 0x01, 0x0e, // e
|
||||
0x0c, 0x12, 0x02, 0x07, 0x02, 0x02, 0x02, // f
|
||||
0x00, 0x1e, 0x11, 0x11, 0x1e, 0x10, 0x0e, // g
|
||||
0x01, 0x01, 0x0d, 0x13, 0x11, 0x11, 0x11, // h
|
||||
0x04, 0x00, 0x06, 0x04, 0x04, 0x04, 0x0e, // i
|
||||
0x08, 0x00, 0x0c, 0x08, 0x08, 0x09, 0x06, // j
|
||||
0x01, 0x01, 0x09, 0x05, 0x03, 0x05, 0x09, // k
|
||||
0x06, 0x04, 0x04, 0x04, 0x04, 0x04, 0x0e, // l
|
||||
0x00, 0x00, 0x0b, 0x15, 0x15, 0x11, 0x11, // m
|
||||
0x00, 0x00, 0x0d, 0x13, 0x11, 0x11, 0x11, // n
|
||||
0x00, 0x00, 0x0e, 0x11, 0x11, 0x11, 0x0e, // o
|
||||
0x00, 0x00, 0x0f, 0x11, 0x0f, 0x01, 0x01, // p
|
||||
0x00, 0x00, 0x16, 0x19, 0x1e, 0x10, 0x10, // q
|
||||
0x00, 0x00, 0x0d, 0x13, 0x01, 0x01, 0x01, // r
|
||||
0x00, 0x00, 0x0e, 0x01, 0x0e, 0x10, 0x0f, // s
|
||||
0x02, 0x02, 0x07, 0x02, 0x02, 0x12, 0x0c, // t
|
||||
0x00, 0x00, 0x11, 0x11, 0x11, 0x19, 0x16, // u
|
||||
0x00, 0x00, 0x11, 0x11, 0x11, 0x0a, 0x04, // v
|
||||
0x00, 0x00, 0x11, 0x11, 0x15, 0x15, 0x0a, // w
|
||||
0x00, 0x00, 0x11, 0x0a, 0x04, 0x0a, 0x11, // x
|
||||
0x00, 0x00, 0x11, 0x11, 0x1e, 0x10, 0x0e, // y
|
||||
0x00, 0x00, 0x1f, 0x08, 0x04, 0x02, 0x1f, // z
|
||||
0x08, 0x04, 0x04, 0x02, 0x04, 0x04, 0x08, // {
|
||||
0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, // |
|
||||
0x02, 0x04, 0x04, 0x08, 0x04, 0x04, 0x02, // }
|
||||
0x00, 0x00, 0x02, 0x15, 0x08, 0x00, 0x00, // ~
|
||||
0x00, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x00, //
|
||||
};
|
||||
|
||||
__CODE FontDef_t Font_3x5 = {3, 5, 1, 1, Font3x5};
|
||||
__CODE FontDef_t Font_5x7 = {5, 7, 1, 1, Font5x7};
|
||||
274
demo/spi/st7567/st7567.h
Normal file
274
demo/spi/st7567/st7567.h
Normal file
@ -0,0 +1,274 @@
|
||||
// Copyright 2021 IOsetting <iosetting(at)outlook.com>
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
#ifndef __ST7567_H_
|
||||
#define __ST7567_H_
|
||||
|
||||
#include "fw_hal.h"
|
||||
|
||||
|
||||
#define ST7567_CS P35
|
||||
#define ST7567_MOSI P34
|
||||
#define ST7567_SCK P32
|
||||
#define ST7567_RES P37
|
||||
#define ST7567_DC P36
|
||||
#define ST7567_BL P12
|
||||
|
||||
// X width
|
||||
#define ST7567_WIDTH 128
|
||||
// Y height
|
||||
#define ST7567_HEIGHT 64
|
||||
// Additional bytes in each row
|
||||
#define ST7567_SEG_EXPAND 4
|
||||
// X orientation
|
||||
#define ST7567_X_ORIENT ST7567_SEG_DIRECTION_NORMAL
|
||||
// Y orientation
|
||||
#define ST7567_Y_ORIENT ST7567_COM_DIRECTION_REVERSE
|
||||
|
||||
|
||||
/* ST7567 commands definitions */
|
||||
#define ST7567_DISPLAY_OFF 0xAE /* 0xae: Display OFF (sleep mode) */
|
||||
#define ST7567_DISPLAY_ON 0xAF /* 0xaf: Display ON in normal mode */
|
||||
|
||||
#define ST7567_SET_START_LINE 0x40 /* 0x40-7f: Set display start line */
|
||||
#define ST7567_SET_START_LINE_MASK 0x3f
|
||||
|
||||
#define ST7567_SET_PAGE_ADDRESS 0xB0 /* 0xb0-b7: Set page start address, 0 - 7 */
|
||||
#define ST7567_SET_PAGE_ADDRESS_MASK 0x07
|
||||
|
||||
#define ST7567_SET_COLUMN_ADDRESS_MSB 0x10 /* 0x10-0x1f: Set 8bit column address - high 4 bits */
|
||||
#define ST7567_SET_COLUMN_ADDRESS_MSB_MASK 0x0f
|
||||
|
||||
#define ST7567_SET_COLUMN_ADDRESS_LSB 0x00 /* 0x00-0x0f: Set 8bit column address - low 4 bits */
|
||||
#define ST7567_SET_COLUMN_ADDRESS_LSB_MASK 0x0F
|
||||
|
||||
/**
|
||||
* SEG: 0 - 131
|
||||
*/
|
||||
#define ST7567_SEG_DIRECTION_NORMAL 0xA0 /* 0xa0: Column address 0 is mapped to SEG0 */
|
||||
#define ST7567_SEG_DIRECTION_REVERSE 0xA1 /* 0xa1: Column address 128 is mapped to SEG0 */
|
||||
|
||||
/**
|
||||
* COM: 0 - 63
|
||||
*/
|
||||
#define ST7567_COM_DIRECTION_NORMAL 0xC0 /* 0xc0: Set COM output direction, normal mode */
|
||||
#define ST7567_COM_DIRECTION_REVERSE 0xC8 /* 0xc8: Set COM output direction, reverse mode */
|
||||
|
||||
#define ST7567_INVERSE_DISPLAY_OFF 0xA6 /* 0xa6: Normal display */
|
||||
#define ST7567_INVERSE_DISPLAY_ON 0xA7 /* 0xa7: Inverse display */
|
||||
|
||||
#define ST7567_ALL_PIXEL_ON 0xA5 /* 0xa5: Entire display ON */
|
||||
#define ST7567_ALL_PIXEL_NORMAL 0xA4 /* 0xa4: Resume to RAM content display */
|
||||
|
||||
#define ST7567_BIAS_1_9 0xA2 /* 0xa2: Select BIAS setting 1/9 */
|
||||
#define ST7567_BIAS_1_7 0xA3 /* 0xa3: Select BIAS setting 1/7 */
|
||||
|
||||
#define ST7567_READ_MODIFY_WRITE_START 0xE0 /* 0xe0: Enter the Read Modify Write mode */
|
||||
#define ST7567_READ_MODIFY_WRITE_END 0xEE /* 0xee: Leave the Read Modify Write mode */
|
||||
#define ST7567_RESET 0xE2 /* 0xe2: Software RESET */
|
||||
|
||||
/**
|
||||
* This instruction controls the built-in power circuits.
|
||||
* Typically, these 3 flags are turned ON at the same time.
|
||||
*/
|
||||
#define ST7567_POWER_CONTROL 0x28
|
||||
#define ST7567_POWER_CONTROL_VF 0x01
|
||||
#define ST7567_POWER_CONTROL_VR 0x02
|
||||
#define ST7567_POWER_CONTROL_VB 0x04
|
||||
|
||||
/**
|
||||
* The operation voltage (V0) calculation formula is shown below:
|
||||
* (RR comes from Regulation Ratio, EV comes from EV[5:0])
|
||||
* V0 = RR X [ 1 – (63 – EV) / 162 ] X 2.1, or
|
||||
* V0 = RR X [ ( 99 + EV ) / 162 ] X 2.1
|
||||
*/
|
||||
#define ST7567_REGULATION_RATIO 0x20
|
||||
#define ST7567_REGULATION_RATIO_3_0 0x00
|
||||
#define ST7567_REGULATION_RATIO_3_5 0x01
|
||||
#define ST7567_REGULATION_RATIO_4_0 0x02
|
||||
#define ST7567_REGULATION_RATIO_4_5 0x03
|
||||
#define ST7567_REGULATION_RATIO_5_0 0x04 /* Default */
|
||||
#define ST7567_REGULATION_RATIO_5_5 0x05
|
||||
#define ST7567_REGULATION_RATIO_6_0 0x06
|
||||
#define ST7567_REGULATION_RATIO_6_5 0x07
|
||||
|
||||
/**
|
||||
* This is double byte instruction. The first byte set ST7567 into EV
|
||||
* adjust mode and the following instruction will change the EV setting.
|
||||
* That means these 2 bytes must be used together. They control the electronic
|
||||
* volume to adjust a suitable V0 voltage for the LCD.
|
||||
*/
|
||||
#define ST7567_SET_EV 0x81
|
||||
#define ST7567_SET_EV_MASK 0x3F
|
||||
|
||||
#define ST7567_SET_BOOSTER 0xF8 /* Set booster level */
|
||||
#define ST7567_SET_BOOSTER_4X 0x00
|
||||
#define ST7567_SET_BOOSTER_5X 0x01
|
||||
|
||||
#define ST7567_NOP 0xE3
|
||||
#define ST7567_TEST 0xFE
|
||||
|
||||
#ifndef ST7567_TIMEOUT
|
||||
#define ST7567_TIMEOUT 20000
|
||||
#endif
|
||||
|
||||
#if ST7567_X_ORIENT == ST7567_SEG_DIRECTION_REVERSE
|
||||
#define ST7567_X_OFFSET ST7567_SEG_EXPAND
|
||||
#else
|
||||
#define ST7567_X_OFFSET 0
|
||||
#endif
|
||||
|
||||
|
||||
/** Background color */
|
||||
#define ST7567_COLOR_BACK 0x00
|
||||
/** Front color */
|
||||
#define ST7567_COLOR_FRONT 0x01
|
||||
|
||||
typedef struct {
|
||||
uint8_t width;
|
||||
uint8_t height;
|
||||
uint8_t order;
|
||||
uint8_t bytes;
|
||||
const uint8_t *dat;
|
||||
} FontDef_t;
|
||||
|
||||
extern __CODE FontDef_t Font_3x5;
|
||||
extern __CODE FontDef_t Font_5x7;
|
||||
|
||||
|
||||
/**
|
||||
* @brief Initializes ST7567 LCD
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_Init(void);
|
||||
|
||||
/**
|
||||
* @brief Hardware reset ST7567 LCD
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_Reset(void);
|
||||
|
||||
/**
|
||||
* @brief Turn ST7567 LCD backlight on
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_BackLight_On(void);
|
||||
|
||||
/**
|
||||
* @brief Turn ST7567 LCD backlight off
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_BackLight_Off(void);
|
||||
|
||||
/**
|
||||
* @brief Turn ST7567 LCD backlight off
|
||||
* @param val: value between 0x00 ~ 0x3F
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_SetContrast(uint8_t val);
|
||||
|
||||
/**
|
||||
* @brief Updates buffer from internal RAM to LCD
|
||||
* @note This function must be called each time you do some changes to LCD, to update buffer from RAM to LCD
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_UpdateScreen(void);
|
||||
|
||||
/**
|
||||
* @brief Toggles pixels invertion inside internal RAM
|
||||
* @note @ref ST7567_UpdateScreen() must be called after that in order to see updated LCD screen
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_ToggleInvert(void);
|
||||
|
||||
/**
|
||||
* @brief Fills entire LCD with desired color
|
||||
* @note @ref ST7567_UpdateScreen() must be called after that in order to see updated LCD screen
|
||||
* @param Color: Color to be used for screen fill. This parameter can be a value of @ref ST7567_COLOR_t enumeration
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_Fill(uint8_t Color);
|
||||
|
||||
/**
|
||||
* @brief Draws pixel at desired location
|
||||
* @note @ref ST7567_UpdateScreen() must called after that in order to see updated LCD screen
|
||||
* @param x: X location. This parameter can be a value between 0 and ST7567_WIDTH - 1
|
||||
* @param y: Y location. This parameter can be a value between 0 and ST7567_HEIGHT - 1
|
||||
* @param color: Color to be used for screen fill. This parameter can be a value of @ref ST7567_COLOR_t enumeration
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_DrawPixel(uint16_t x, uint16_t y, uint8_t color);
|
||||
|
||||
/**
|
||||
* @brief Sets cursor pointer to desired location for strings
|
||||
* @param x: X location. This parameter can be a value between 0 and ST7567_WIDTH - 1
|
||||
* @param y: Y location. This parameter can be a value between 0 and ST7567_HEIGHT - 1
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_GotoXY(uint16_t x, uint16_t y);
|
||||
|
||||
/**
|
||||
* @brief Puts character to internal RAM
|
||||
* @note @ref ST7567_UpdateScreen() must be called after that in order to see updated LCD screen
|
||||
* @param ch: Character to be written
|
||||
* @param *Font: Pointer to @ref FontDef_t structure with used font
|
||||
* @param color: Color used for drawing. This parameter can be a value of @ref ST7567_COLOR_t enumeration
|
||||
* @retval Character written
|
||||
*/
|
||||
char ST7567_Putc(char ch, FontDef_t* Font, uint8_t color);
|
||||
|
||||
/**
|
||||
* @brief Puts string to internal RAM
|
||||
* @note @ref ST7567_UpdateScreen() must be called after that in order to see updated LCD screen
|
||||
* @param *str: String to be written
|
||||
* @param *Font: Pointer to @ref FontDef_t structure with used font
|
||||
* @param color: Color used for drawing. This parameter can be a value of @ref ST7567_COLOR_t enumeration
|
||||
* @retval Zero on success or character value when function failed
|
||||
*/
|
||||
char ST7567_Puts(char* str, FontDef_t* Font, uint8_t color);
|
||||
|
||||
/**
|
||||
* @brief Draws line on LCD
|
||||
* @note @ref ST7567_UpdateScreen() must be called after that in order to see updated LCD screen
|
||||
* @param x0: Line X start point. Valid input is 0 to ST7567_WIDTH - 1
|
||||
* @param y0: Line Y start point. Valid input is 0 to ST7567_HEIGHT - 1
|
||||
* @param x1: Line X end point. Valid input is 0 to ST7567_WIDTH - 1
|
||||
* @param y1: Line Y end point. Valid input is 0 to ST7567_HEIGHT - 1
|
||||
* @param c: Color to be used. This parameter can be a value of @ref ST7567_COLOR_t enumeration
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_DrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t c);
|
||||
|
||||
/**
|
||||
* @brief Writes single byte command to slave
|
||||
* @param command: command to be written
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_WriteCommand(uint8_t command);
|
||||
|
||||
/**
|
||||
* @brief Writes single byte data to slave
|
||||
* @param data: data to be written
|
||||
* @retval None
|
||||
*/
|
||||
void ST7567_WriteData(uint8_t data);
|
||||
|
||||
|
||||
#endif // __ST7567_H_
|
||||
147
demo/spi/st7567/st7567_stc8h3k.c
Normal file
147
demo/spi/st7567/st7567_stc8h3k.c
Normal file
@ -0,0 +1,147 @@
|
||||
// Copyright 2021 IOsetting <iosetting(at)outlook.com>
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
/***
|
||||
* Demo: ST7567 12864 LCD
|
||||
* Board: STC8H3K32
|
||||
*
|
||||
* P37 -> RES, RESET 7 - 18
|
||||
* P36 -> DC, A0 8 - 17
|
||||
* P35 -> CSB, Chip Select 6 - 16
|
||||
* P32 -> SCK, SCL, CLK, Clock 9 - 13
|
||||
* P12 -> LED-A, Backlight 3 - 19
|
||||
* P34 -> MOSI, SDA 10 - 15
|
||||
* GND -> GND
|
||||
* 3.3V -> VCC
|
||||
*/
|
||||
|
||||
#include "fw_hal.h"
|
||||
#include "st7567.h"
|
||||
|
||||
|
||||
void SPI_Init(void)
|
||||
{
|
||||
// ST7567 doesn't work if SPI frequency is too high
|
||||
SPI_SetClockPrescaler(SPI_ClockPreScaler_16);
|
||||
// Clock idles low
|
||||
SPI_SetClockPolarity(HAL_State_OFF);
|
||||
// Data transfer is driven by lower SS pin
|
||||
SPI_SetClockPhase(SPI_ClockPhase_LeadingEdge);
|
||||
// MSB first
|
||||
SPI_SetDataOrder(SPI_DataOrder_MSB);
|
||||
// Define the output pins
|
||||
SPI_SetPort(SPI_AlterPort_P35_P34_P33_P32);
|
||||
// Ignore SS pin, use MSTR to swith between master/slave mode
|
||||
SPI_IgnoreSlaveSelect(HAL_State_ON);
|
||||
// Master mode
|
||||
SPI_SetMasterMode(HAL_State_ON);
|
||||
// Start SPI
|
||||
SPI_SetEnableState(HAL_State_ON);
|
||||
}
|
||||
|
||||
void GPIO_Init(void)
|
||||
{
|
||||
// Configure GPIO pins before SPI and device
|
||||
// DIN(P34)
|
||||
GPIO_P3_SetMode(GPIO_Pin_4, GPIO_Mode_InOut_QBD);
|
||||
// SCLK(P32)
|
||||
GPIO_P3_SetMode(GPIO_Pin_2|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7, GPIO_Mode_Output_PP);
|
||||
GPIO_P1_SetMode(GPIO_Pin_2, GPIO_Mode_Output_PP);
|
||||
}
|
||||
|
||||
int main(void)
|
||||
{
|
||||
int y1, y2;
|
||||
uint8_t d1, d2;
|
||||
|
||||
SYS_SetClock();
|
||||
GPIO_Init();
|
||||
SPI_Init();
|
||||
ST7567_Init();
|
||||
|
||||
while(1)
|
||||
{
|
||||
ST7567_DrawLine(0, 0, 127, 0, 1);
|
||||
ST7567_DrawLine(0, 0, 0, 63, 1);
|
||||
ST7567_DrawLine(127, 0, 127, 63, 1);
|
||||
ST7567_DrawLine(0, 63, 127, 63, 1);
|
||||
|
||||
ST7567_GotoXY(3, 5);
|
||||
ST7567_Puts("LCD:ST7567", &Font_5x7, 1);
|
||||
ST7567_GotoXY(3, 13);
|
||||
ST7567_Puts("STC8 FwLib Demo", &Font_5x7, 1);
|
||||
ST7567_GotoXY(3, 21);
|
||||
ST7567_Puts("It's a demo of ST7567 12864 LCD", &Font_3x5, 1);
|
||||
ST7567_GotoXY(3, 27);
|
||||
ST7567_Puts("Font size 3x5, nums:01234567890", &Font_3x5, 1);
|
||||
ST7567_GotoXY(5, 52);
|
||||
ST7567_Puts("Font size: 5x7", &Font_5x7, 1);
|
||||
ST7567_UpdateScreen();
|
||||
SYS_Delay(2000);
|
||||
|
||||
y1 = 10;
|
||||
while (y1 <= 0x30)
|
||||
{
|
||||
ST7567_SetContrast(y1++);
|
||||
SYS_Delay(100);
|
||||
}
|
||||
while (y1 >= 10)
|
||||
{
|
||||
ST7567_SetContrast(y1--);
|
||||
SYS_Delay(100);
|
||||
}
|
||||
while (y1 <= 0x20)
|
||||
{
|
||||
ST7567_SetContrast(y1++);
|
||||
SYS_Delay(100);
|
||||
}
|
||||
SYS_Delay(2000);
|
||||
|
||||
ST7567_ToggleInvert();
|
||||
ST7567_UpdateScreen();
|
||||
SYS_Delay(2000);
|
||||
|
||||
ST7567_ToggleInvert();
|
||||
ST7567_UpdateScreen();
|
||||
SYS_Delay(2000);
|
||||
|
||||
ST7567_Fill(0);
|
||||
y1 = 64, y2 = 0;
|
||||
while (y1 > 0)
|
||||
{
|
||||
ST7567_DrawLine(0, y1, 127, y2, 1);
|
||||
ST7567_UpdateScreen();
|
||||
y1 -= 2;
|
||||
y2 += 2;
|
||||
SYS_Delay(100);
|
||||
}
|
||||
SYS_Delay(1000);
|
||||
|
||||
ST7567_Fill(0);
|
||||
y1 = 127, y2 = 0;
|
||||
while (y1 > 0)
|
||||
{
|
||||
ST7567_DrawLine(y1, 0, y2, 63, 1);
|
||||
ST7567_UpdateScreen();
|
||||
y1 -= 2;
|
||||
y2 += 2;
|
||||
SYS_Delay(100);
|
||||
}
|
||||
SYS_Delay(1000);
|
||||
|
||||
ST7567_Fill(0);
|
||||
ST7567_UpdateScreen();
|
||||
SYS_Delay(2000);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user