160 lines
4.6 KiB
C
160 lines
4.6 KiB
C
// 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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/***
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* Demo: PCD8544 - Nokia5110 84x48 LCD
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* Board: STC8H3K32
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*
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* P37 -> RES, RESET
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* P36 -> DC, A0
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* P35 -> CE, Chip Select
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* P32 -> SCK, SCL, CLK, Clock
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* P12 -> BL, Backlight
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* P34 -> MOSI, Din
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* GND -> GND
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* 3.3V -> VCC
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*/
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#include "fw_hal.h"
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#include "pcd8544.h"
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void SPI_Init(void)
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{
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SPI_SetClockPrescaler(SPI_ClockPreScaler_16);
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// Clock is low when idle
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SPI_SetClockPolarity(HAL_State_OFF);
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// Data transfer is driven by lower SS pin
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SPI_SetClockPhase(SPI_ClockPhase_LeadingEdge);
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// MSB first
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SPI_SetDataOrder(SPI_DataOrder_MSB);
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// Define the output pins
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SPI_SetPort(SPI_AlterPort_P35_P34_P33_P32);
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// Ignore SS pin, use MSTR to swith between master/slave mode
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SPI_IgnoreSlaveSelect(HAL_State_ON);
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// Master mode
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SPI_SetMasterMode(HAL_State_ON);
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// Start SPI
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SPI_SetEnabled(HAL_State_ON);
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}
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void GPIO_Init(void)
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{
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// Configure GPIO pins before SPI and device
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// DIN(P34)
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GPIO_P3_SetMode(GPIO_Pin_4, GPIO_Mode_InOut_QBD);
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// SCLK(P32)
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GPIO_P3_SetMode(GPIO_Pin_2|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7, GPIO_Mode_Output_PP);
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GPIO_P1_SetMode(GPIO_Pin_2, GPIO_Mode_Output_PP);
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}
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int main(void)
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{
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uint8_t y1, y2;
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SYS_SetClock();
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GPIO_Init();
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SPI_Init();
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PCD8544_Init();
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while(1)
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{
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PCD8544_SetBackLightState(HAL_State_ON);
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SYS_Delay(500);
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PCD8544_SetDisplayAllOn();
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SYS_Delay(200);
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PCD8544_SetDisplayInverted();
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SYS_Delay(200);
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PCD8544_SetDisplayBlank();
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SYS_Delay(200);
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PCD8544_SetDisplayNormal();
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SYS_Delay(500);
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PCD8544_Fill(0);
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PCD8544_DrawLine(0, 0, 83, 0, 1);
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PCD8544_DrawLine(0, 0, 0, 47, 1);
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PCD8544_DrawLine(83, 0, 83, 47, 1);
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PCD8544_DrawLine(0, 47, 83, 47, 1);
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PCD8544_UpdateScreen();
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SYS_Delay(500);
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PCD8544_GotoXY(3, 3);
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PCD8544_Puts("LCD:PCD8544", &Font_5x7, 1);
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PCD8544_GotoXY(3, 11);
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PCD8544_Puts("STC8 FwLib", &Font_5x7, 1);
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PCD8544_GotoXY(3, 19);
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PCD8544_Puts("A demo of PCD8544", &Font_3x5, 1);
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PCD8544_GotoXY(3, 25);
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PCD8544_Puts("Font 3x5: 01234567890", &Font_3x5, 1);
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PCD8544_UpdateScreen();
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SYS_Delay(500);
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PCD8544_SetPowerDownMode(HAL_State_ON);
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SYS_Delay(1000);
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PCD8544_SetPowerDownMode(HAL_State_OFF);
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SYS_Delay(1000);
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PCD8544_SetDisplayInverted();
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SYS_Delay(1000);
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PCD8544_SetDisplayNormal();
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SYS_Delay(1000);
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for (y1 = 0x05; y1 < 0x08; y1++)
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{
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for (y2 = 0x00; y2 < 0x60; y2+=2)
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{
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PCD8544_GotoXY(3, 32);
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PCD8544_Putc(HEX_TABLE[y1 >> 4], &Font_5x7, 1);
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PCD8544_Putc(HEX_TABLE[y1 & 0x0F], &Font_5x7, 1);
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PCD8544_Putc(' ', &Font_5x7, 1);
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PCD8544_Putc(HEX_TABLE[y2 >> 4], &Font_5x7, 1);
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PCD8544_Putc(HEX_TABLE[y2 & 0x0F], &Font_5x7, 1);
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PCD8544_UpdateScreen();
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PCD8544_SetContrast(y1, y2);
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SYS_Delay(100);
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}
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SYS_Delay(1000);
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}
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PCD8544_SetContrast(0x06, 0x20);
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PCD8544_Fill(0);
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y1 = 47, y2 = 0;
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while (y1 < 0xF0)
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{
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PCD8544_DrawLine(0, y1, 83, y2, 1);
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PCD8544_UpdateScreen();
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y1 -= 2;
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y2 += 2;
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SYS_Delay(100);
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}
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SYS_Delay(1000);
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PCD8544_Fill(0);
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y1 = 83, y2 = 0;
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while (y1 < 0xF0)
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{
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PCD8544_DrawLine(y1, 0, y2, 47, 1);
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PCD8544_UpdateScreen();
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y1 -= 2;
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y2 += 2;
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SYS_Delay(100);
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}
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SYS_Delay(1000);
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PCD8544_Fill(0);
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PCD8544_UpdateScreen();
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SYS_Delay(1000);
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PCD8544_SetBackLightState(HAL_State_OFF);
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SYS_Delay(1000);
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}
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}
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