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https://gitee.com/Lyon1998/pikapython.git
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277 lines
7.3 KiB
C
277 lines
7.3 KiB
C
#include "LCD_Driver.h"
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#include "../PikaStdDevice/pika_hal.h"
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#include "LCD_Config.h"
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#include "main.h"
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#include "pika_bsp.h"
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/* config SPI mode, chocie one from three */
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// #define SPI_SOFT
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// #define SPI_HARD
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void SPI_Write_u8(u8 Data);
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pika_dev* pika_hal_spi;
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//液晶IO初始化配置
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void LCD_GPIO_Init(void) {
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* GPIO Ports Clock Enable */
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/*Configure GPIO pin : PA0 */
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GPIO_InitStruct.Pin = GPIO_PIN_3 | GPIO_PIN_5;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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#ifdef SPI_SOFT
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GPIO_InitStruct.Pin = GPIO_PIN_1 | GPIO_PIN_2;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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#endif
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}
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void SPI_WriteData_u8(u8* pData, uint32_t size) {
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pika_hal_write(pika_hal_spi, pData, size);
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}
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void SPI_WriteData_u16(u16* pData, uint32_t size) {
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#ifdef SPI_SOFT
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for (int i = 0; i < size / 2; i++) {
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SPI_Write_u8(pData[i] >> 8); //写入低8位数据
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SPI_Write_u8(pData[i]); //写入高8位数据
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}
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#else
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u8* pData_u8 = (u8*)pData;
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SPI_WriteData_u8(pData_u8, size);
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#endif
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}
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//向SPI总线传输一个8位数据
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void SPI_Write_u8(u8 Data) {
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#ifdef SPI_SOFT
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unsigned char i = 0;
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for (i = 8; i > 0; i--) {
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if (Data & 0x80)
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LCD_SDA_SET; //输出数据
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else
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LCD_SDA_CLR;
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LCD_SCL_CLR;
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LCD_SCL_SET;
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Data <<= 1;
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}
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#else
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SPI_WriteData_u8(&Data, 1);
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#endif
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}
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//向液晶屏写一个8位指令
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void LCD_WriteIndex(u8 Index) {
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// SPI 写命令时序开始
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LCD_RS_CLR;
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SPI_Write_u8(Index);
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}
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//向液晶屏写一个8位数据
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void LCD_Write_u8(u8 Data) {
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LCD_RS_SET;
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SPI_Write_u8(Data);
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}
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//向液晶屏写一个16位数据
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void LCD_Write_u16(u16 Data) {
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LCD_RS_SET;
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SPI_Write_u8(Data >> 8); //写入高8位数据
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SPI_Write_u8(Data); //写入低8位数据
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}
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void LCD_WriteData_u16(u16* pData, uint32_t size) {
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LCD_RS_SET;
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SPI_WriteData_u16(pData, size); //写入高8位数据
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}
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void LCD_WriteReg(u8 Index, u8 Data) {
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LCD_WriteIndex(Index);
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LCD_Write_u8(Data);
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}
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void LCD_Reset(void) {
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LCD_RST_CLR;
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delay_ms(100);
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LCD_RST_SET;
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delay_ms(50);
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}
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// LCD Init For 1.44Inch LCD Panel with ST7735R.
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void LCD_Init(void) {
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LCD_GPIO_Init();
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/* enable spi hal */
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pika_hal_spi = pika_hal_open(PIKA_HAL_SPI, "spi1");
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pika_hal_ioctl(pika_hal_spi, PIKA_HAL_IOCTL_ENABLE);
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LCD_Reset(); // Reset before LCD Init.
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// LCD Init For 1.8Inch LCD Panel with ST7735S.
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LCD_WriteIndex(0x11); // Sleep exit
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delay_ms(120);
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LCD_WriteIndex(0xB1);
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LCD_Write_u8(0x05);
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LCD_Write_u8(0x3C);
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LCD_Write_u8(0x3C);
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LCD_WriteIndex(0xB2);
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LCD_Write_u8(0x05);
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LCD_Write_u8(0x3C);
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LCD_Write_u8(0x3C);
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LCD_WriteIndex(0xB3);
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LCD_Write_u8(0x05);
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LCD_Write_u8(0x3C);
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LCD_Write_u8(0x3C);
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LCD_Write_u8(0x05);
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LCD_Write_u8(0x3C);
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LCD_Write_u8(0x3C);
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//------------------------------------End ST7735S Frame
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// Rate---------------------------------//
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LCD_WriteIndex(0xB4); // Dot inversion
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LCD_Write_u8(0x03);
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//------------------------------------ST7735S Power
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// Sequence---------------------------------//
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LCD_WriteIndex(0xC0);
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LCD_Write_u8(0x28);
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LCD_Write_u8(0x08);
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LCD_Write_u8(0x04);
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LCD_WriteIndex(0xC1);
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LCD_Write_u8(0XC0);
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LCD_WriteIndex(0xC2);
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LCD_Write_u8(0x0D);
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LCD_Write_u8(0x00);
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LCD_WriteIndex(0xC3);
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LCD_Write_u8(0x8D);
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LCD_Write_u8(0x2A);
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LCD_WriteIndex(0xC4);
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LCD_Write_u8(0x8D);
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LCD_Write_u8(0xEE);
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//---------------------------------End ST7735S Power
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// Sequence-------------------------------------//
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LCD_WriteIndex(0xC5); // VCOM
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LCD_Write_u8(0x1A);
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LCD_WriteIndex(0x36); // MX, MY, RGB mode
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LCD_Write_u8(0xC0);
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//------------------------------------ST7735S Gamma
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// Sequence---------------------------------//
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LCD_WriteIndex(0xE0);
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LCD_Write_u8(0x04);
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LCD_Write_u8(0x22);
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LCD_Write_u8(0x07);
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LCD_Write_u8(0x0A);
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LCD_Write_u8(0x2E);
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LCD_Write_u8(0x30);
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LCD_Write_u8(0x25);
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LCD_Write_u8(0x2A);
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LCD_Write_u8(0x28);
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LCD_Write_u8(0x26);
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LCD_Write_u8(0x2E);
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LCD_Write_u8(0x3A);
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LCD_Write_u8(0x00);
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LCD_Write_u8(0x01);
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LCD_Write_u8(0x03);
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LCD_Write_u8(0x13);
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LCD_WriteIndex(0xE1);
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LCD_Write_u8(0x04);
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LCD_Write_u8(0x16);
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LCD_Write_u8(0x06);
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LCD_Write_u8(0x0D);
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LCD_Write_u8(0x2D);
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LCD_Write_u8(0x26);
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LCD_Write_u8(0x23);
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LCD_Write_u8(0x27);
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LCD_Write_u8(0x27);
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LCD_Write_u8(0x25);
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LCD_Write_u8(0x2D);
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LCD_Write_u8(0x3B);
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LCD_Write_u8(0x00);
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LCD_Write_u8(0x01);
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LCD_Write_u8(0x04);
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LCD_Write_u8(0x13);
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//------------------------------------End ST7735S Gamma
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// Sequence-----------------------------//
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LCD_WriteIndex(0x3A); // 65k mode
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LCD_Write_u8(0x05);
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LCD_WriteIndex(0x29); // Display on
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}
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/*************************************************
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函数名：LCD_Set_Region
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功能：设置lcd显示区域，在此区域写点数据自动换行
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入口参数：xy起点和终点
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返回值：无
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*************************************************/
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void LCD_SetRegion(u16 x_start, u16 y_start, u16 x_end, u16 y_end) {
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LCD_WriteIndex(0x2a);
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uint8_t data[4];
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data[0] = (X_OFFSET + x_start) >> 8;
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data[1] = (X_OFFSET + x_start) & 0XFF;
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data[2] = (X_OFFSET + x_end) >> 8;
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data[3] = (X_OFFSET + x_end) & 0XFF;
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LCD_RS_SET;
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SPI_WriteData_u8(data, sizeof(data));
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LCD_WriteIndex(0x2b);
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data[0] = (Y_OFFSET + y_start) >> 8;
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data[1] = (Y_OFFSET + y_start) & 0XFF;
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data[2] = (Y_OFFSET + y_end) >> 8;
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data[3] = (Y_OFFSET + y_end) & 0XFF;
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LCD_RS_SET;
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SPI_WriteData_u8(data, sizeof(data));
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LCD_WriteIndex(0x2c);
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}
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/*************************************************
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函数名：LCD_Set_XY
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功能：设置lcd显示起始点
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入口参数：xy坐标
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返回值：无
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*************************************************/
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void LCD_SetXY(u16 x, u16 y) {
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LCD_SetRegion(x, y, x, y);
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}
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/*************************************************
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函数名：LCD_DrawPoint
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功能：画一个点
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入口参数：无
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返回值：无
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*************************************************/
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void LCD_DrawPoint(u16 x, u16 y, u16 Data) {
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LCD_SetRegion(x, y, x + 1, y + 1);
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LCD_Write_u16(Data);
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}
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void LCD_DrawRegin(u16 x_start, u16 y_start, u16 x_end, u16 y_end, u16* pData) {
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u32 size = (x_end - x_start) * (y_end - y_start) * 2;
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LCD_SetRegion(x_start, y_start, x_end - 1, y_end - 1);
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LCD_RS_SET;
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SPI_WriteData_u16(pData, size);
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}
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#define BUFF_SIZE (X_MAX_PIXEL)
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void LCD_Clear(u16 Color) {
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unsigned int i, m;
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u16 data[BUFF_SIZE];
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for (i = 0; i < BUFF_SIZE; i++) {
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data[i] = Color;
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}
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int m_max = Y_MAX_PIXEL;
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for (m = 0; m < m_max; m++) {
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LCD_DrawRegin(0, m, X_MAX_PIXEL, m + 1, data);
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}
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}
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void LCD_Fill(u16 x0, u16 y0, u16 hight, u16 wight, u16 color) {
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unsigned int i, y;
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u16 data[BUFF_SIZE];
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for (i = 0; i < BUFF_SIZE; i++) {
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data[i] = color;
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}
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int y_end = y0 + hight;
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for (y = y0; y < y_end; y++) {
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LCD_DrawRegin(x0, y, x0 + wight, y + 1, data);
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}
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}
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