102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
// 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: SSD1306 12864 OLED
|
|
* Board: STC8H3K32
|
|
*
|
|
* P32 -> SCL
|
|
* P33 -> SDA
|
|
* GND -> GND
|
|
* 3.3V -> VCC
|
|
*/
|
|
|
|
#include "fw_hal.h"
|
|
#include "ssd1306.h"
|
|
|
|
void I2C_Init(void)
|
|
{
|
|
// Master mode
|
|
I2C_SetWorkMode(I2C_WorkMode_Master);
|
|
/**
|
|
* I2C clock = SYSCLK / 2 / (__prescaler__ * 2 + 4)
|
|
* SSD1306 works with i2c clock up to 1.3 MHz, beyond this value, display may fail.
|
|
*/
|
|
I2C_SetClockPrescaler(0x10);
|
|
// Switch alternative port
|
|
I2C_SetPort(I2C_AlterPort_P32_P33);
|
|
// Start I2C
|
|
I2C_SetEnabled(HAL_State_ON);
|
|
}
|
|
|
|
void GPIO_Init(void)
|
|
{
|
|
// SDA
|
|
GPIO_P3_SetMode(GPIO_Pin_3, GPIO_Mode_InOut_QBD);
|
|
// SCL
|
|
GPIO_P3_SetMode(GPIO_Pin_2, GPIO_Mode_Output_PP);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
int y1, y2;
|
|
uint8_t d1, d2;
|
|
|
|
SYS_SetClock();
|
|
GPIO_Init();
|
|
I2C_Init();
|
|
SSD1306_Init();
|
|
|
|
while(1)
|
|
{
|
|
SSD1306_DrawLine(0, 0, 127, 0, 1);
|
|
SSD1306_DrawLine(0, 0, 0, 63, 1);
|
|
SSD1306_DrawLine(127, 0, 127, 63, 1);
|
|
SSD1306_DrawLine(0, 63, 127, 63, 1);
|
|
SSD1306_UpdateScreen(); // display
|
|
SYS_Delay(1000);
|
|
|
|
SSD1306_Fill(0);
|
|
|
|
SSD1306_ToggleInvert(); // Invert display
|
|
SSD1306_UpdateScreen();
|
|
SYS_Delay(1000);
|
|
|
|
SSD1306_ToggleInvert(); // Invert display
|
|
SSD1306_UpdateScreen();
|
|
SYS_Delay(1000);
|
|
|
|
y1 = 64, y2 = 0;
|
|
while (y1 > 0)
|
|
{
|
|
SSD1306_DrawLine(0, y1, 127, y2, 1);
|
|
SSD1306_UpdateScreen();
|
|
y1 -= 2;
|
|
y2 += 2;
|
|
}
|
|
SYS_Delay(1000);
|
|
|
|
SSD1306_Fill(0);
|
|
y1 = 127, y2 = 0;
|
|
while (y1 > 0)
|
|
{
|
|
SSD1306_DrawLine(y1, 0, y2, 63, 1);
|
|
SSD1306_UpdateScreen();
|
|
y1 -= 2;
|
|
y2 += 2;
|
|
}
|
|
SYS_Delay(1000);
|
|
}
|
|
}
|