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/*
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******************************************************************************
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* @file driver_ST7735S.c
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* @author <20>Ϻ<EFBFBD><CFBA><EFBFBD><EFBFBD><EFBFBD>
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* @version V1.0.0
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* @date 2023
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* @brief ST7735S driver.
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* This file provides firmware functions to manage gc9c01
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* with SPI and DMA. User should set GPIO, dma channel, spi
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* channel according actual resource allocation.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2023 Bixdo.
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* All rights reserved.
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******************************************************************************
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*/
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#include "ALLinclude.h"
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// static DMA_LLI_InitTypeDef Link_Channel[20];
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// static DMA_HandleTypeDef ST7735S_DMA_Channel;
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// static dma_LinkParameter_t LinkParameter;
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// static volatile bool dma_transfer_done = true;
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// SPI_HandleTypeDef ST7735S_SPI_Handle;
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// static void (*dma_trans_done_callback)(void) = NULL;
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static void co_delay_100us(uint32_t timer)
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{
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uint32_t timerdelay =timer*100;
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while(timerdelay)
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{
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timerdelay--;
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}
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}
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void LCD_ENABLE_BACKLIGHTANDVCC(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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/* Enable the GPIO Clock */
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__HAL_RCC_GPIOB_CLK_ENABLE();
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GPIO_InitStruct.Pin = GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_10,GPIO_PIN_RESET);
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}
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void LCD_DISABLE_BACKLIGHT(void)
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{
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}
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static void st7735s_init_io(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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__HAL_RCC_GPIOB_CLK_ENABLE();
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// backlight
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GPIO_InitStruct.Pin = GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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// reset
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GPIO_InitStruct.Pin = GPIO_PIN_11;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* CS */
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GPIO_InitStruct.Pin = GPIO_PIN_12;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* RS */
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GPIO_InitStruct.Pin = GPIO_PIN_14;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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LCD_CS_1();
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LCD_RS_1();
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LCD_RESET_1();
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LCD_ENABLE_BACKLIGHTANDVCC();
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//co_delay_100us(100);
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}
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/******************************************************************************
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函数说明：LCD串行数据写入函数
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入口数据：dat 要写入的串行数据
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返回值： 无
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******************************************************************************/
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void LCD_Writ_Bus(uint8_t *dat,uint16_t datalenth)
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{
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LCD_CS_0();
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HAL_SPI_Transmit_DMA(&Spi2Handle, dat, datalenth);
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LCD_CS_1();
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}
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/******************************************************************************
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函数说明：LCD写入数据
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入口数据：dat 写入的数据
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返回值： 无
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******************************************************************************/
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void LCD_WR_DATA(uint8_t dat)
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{
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uint8_t DataSend[2];
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DataSend[0]=dat;
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LCD_Writ_Bus(DataSend,1);
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}
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void LCD_WR_DATAHalfWord(uint16_t dat)
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{
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uint8_t DataSend[2];
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DataSend[0]=dat>>8;
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DataSend[1]=(uint8_t)dat;
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LCD_Writ_Bus(DataSend,2);
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}
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void LCD_WR_DATA2(uint16_t dat)
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{
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uint8_t DataSend[2];
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DataSend[0]=dat>>8;
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DataSend[1]=(uint8_t)dat;
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HAL_SPI_Transmit_DMA(&Spi2Handle, DataSend, 2);
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//spi_master_transmit_X1(&ST7735S_SPI_Handle, &dat, 1);
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}
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/******************************************************************************
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函数说明：LCD写入命令
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入口数据：dat 写入的命令
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返回值： 无
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******************************************************************************/
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void LCD_WR_REG(uint8_t dat)
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{
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uint8_t datsend =dat;
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LCD_RS_0();//写命令
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LCD_Writ_Bus(&datsend,1);
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LCD_RS_1();//写数据
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}
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void st7735s_init(void)
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{
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printf("display init ");
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st7735s_init_io();
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LCD_RESET_0();
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co_delay_100us(100);
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LCD_RESET_1();
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co_delay_100us(10000);
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//************* Start Initial Sequence **********//
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// LCD_WR_REG(0x3A); //0x05-65k mode 0x06-262k mode
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// LCD_WR_DATA(0x05);
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LCD_WR_REG(0x11); //Sleep out
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co_delay_100us(1000);
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LCD_WR_REG(0x28); //Display off
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//------------------------------------ST7735S Frame Rate-----------------------------------------//
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LCD_WR_REG(0xB1);
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LCD_WR_DATA(0x05);
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LCD_WR_DATA(0x3A);
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LCD_WR_DATA(0x3A);
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LCD_WR_REG(0xB2);
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LCD_WR_DATA(0x05);
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LCD_WR_DATA(0x3A);
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LCD_WR_DATA(0x3A);
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LCD_WR_REG(0xB3);
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LCD_WR_DATA(0x05);
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LCD_WR_DATA(0x3A);
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LCD_WR_DATA(0x3A);
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LCD_WR_DATA(0x05);
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LCD_WR_DATA(0x3A);
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LCD_WR_DATA(0x3A);
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//------------------------------------End ST7735S Frame Rate---------------------------------//
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LCD_WR_REG(0xB4); //Dot inversion
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LCD_WR_DATA(0x07);
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// LCD_WR_DATA(0x03); //2020.3.18 XQC
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//------------------------------------ST7735S Power Sequence---------------------------------//
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LCD_WR_REG(0xC0);
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LCD_WR_DATA(0x0E); //0x62
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LCD_WR_DATA(0x0E); //0x02
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LCD_WR_DATA(0x04);
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LCD_WR_REG(0xC1);
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LCD_WR_DATA(0xC0);
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LCD_WR_REG(0xC2);
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LCD_WR_DATA(0x0D);
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LCD_WR_DATA(0x00);
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LCD_WR_REG(0xC3);
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LCD_WR_DATA(0x8D);
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LCD_WR_DATA(0x2A); //0x6A
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LCD_WR_REG(0xC4);
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LCD_WR_DATA(0x8D);
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LCD_WR_DATA(0xEE); //0x6A
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//---------------------------------End ST7735S Power Sequence-------------------------------------//
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LCD_WR_REG(0xC5); //VCOM
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LCD_WR_DATA(0x0E); //0x0E 0X04
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LCD_WR_REG(0x36); //刷新方向
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LCD_WR_DATA(0x08); //0x78-横屏 //C8/A8/08/68-竖屏 0X18
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//------------------------------------ST7735S Gamma Sequence---------------------------------//
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LCD_WR_REG(0xE0);
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LCD_WR_DATA(0x10);
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LCD_WR_DATA(0x0E);
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LCD_WR_DATA(0x02);
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LCD_WR_DATA(0x03);
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LCD_WR_DATA(0x0E);
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LCD_WR_DATA(0x07);
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LCD_WR_DATA(0x02);
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LCD_WR_DATA(0x07);
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LCD_WR_DATA(0x0A);
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LCD_WR_DATA(0x12);
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LCD_WR_DATA(0x27);
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LCD_WR_DATA(0x37);
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LCD_WR_DATA(0x00);
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LCD_WR_DATA(0x0D);
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LCD_WR_DATA(0x0E);
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LCD_WR_DATA(0x10);
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LCD_WR_REG(0xE1);
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LCD_WR_DATA(0x10);
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LCD_WR_DATA(0x0E);
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LCD_WR_DATA(0x03);
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LCD_WR_DATA(0x03);
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LCD_WR_DATA(0x0F);
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LCD_WR_DATA(0x06);
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LCD_WR_DATA(0x02);
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LCD_WR_DATA(0x08);
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LCD_WR_DATA(0x0A);
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LCD_WR_DATA(0x13);
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LCD_WR_DATA(0x26);
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LCD_WR_DATA(0x36);
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LCD_WR_DATA(0x00);
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LCD_WR_DATA(0x0D);
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LCD_WR_DATA(0x0E);
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LCD_WR_DATA(0x10);
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//------------------------------------End ST7735S Gamma Sequence-----------------------------//
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LCD_WR_REG(0x3A); //0x05-65k mode 0x06-262k mode
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LCD_WR_DATA(0x05);
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#if LCD_Maker ==LCD_Maker_B
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LCD_WR_REG(0x21); //Inversion on
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#endif
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st7745s_display_on();
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//LCD_Fill(0,160,0,160,&ColorSet);
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LCD_Clear(BLUE);
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LCDDrawImage(&gImage_test[0]);
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LCD_PutStr(10,20,"hello",RED);
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printf("OK\r\n");
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}
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void st7745s_display_off(void)
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{
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LCD_WR_REG(0x28); //Display off
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}
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void st7745s_display_on(void)
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{
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LCD_WR_REG(0x29); //Display on
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}
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void st7735s_set_window(uint16_t x_s, uint16_t x_e, uint16_t y_s, uint16_t y_e)
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{
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LCD_WR_REG(0x2a);//列地址设置
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#if LCD_Maker ==LCD_Maker_A
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LCD_WR_DATAHalfWord(x_s+24);
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LCD_WR_DATAHalfWord(x_e+24);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATAHalfWord(y_s);
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LCD_WR_DATAHalfWord(y_e);
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#elif LCD_Maker ==LCD_Maker_B
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LCD_WR_DATAHalfWord(x_s+26);
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LCD_WR_DATAHalfWord(x_e+26);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATAHalfWord(y_s+1);
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LCD_WR_DATAHalfWord(y_e+1);
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#endif
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LCD_WR_REG(0x2c);//储存器写
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}
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/******************************************************************************
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函数说明：区域填充颜色
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入口数据：x1,x2,y1,y2,color颜色
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返回值： 无
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******************************************************************************/
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void LCD_Fill(uint16_t x_s, uint16_t x_e, uint16_t y_s, uint16_t y_e,uint16_t *color)
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{
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uint16_t i,j;
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st7735s_set_window(x_s,x_e,y_s,y_e);
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LCD_CS_0();
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co_delay_100us(1000);
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for(i=x_s; i<=x_e; i++)
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{
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for (j=y_s; j<=y_e; j++)
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{
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LCD_WR_DATA2(*color);
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color++;
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}
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}
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LCD_CS_1();
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}
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/******************************************************************************
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函数说明：全屏刷新颜色
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入口数据：color颜色
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返回值： 无
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******************************************************************************/
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void LCD_Clear(uint16_t Color)
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{
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#if 1
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uint8_t gImage_test_[LCD_W*LCD_H*2];
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uint8_t DataSend[2];
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DataSend[0]=Color>>8;
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DataSend[1]=(uint8_t)Color;
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for(int i =0;i<LCD_W*LCD_H;i++)
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{
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gImage_test_[i*2]=DataSend[0];
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gImage_test_[i*2+1]=DataSend[1];
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}
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LCDDrawImage(&gImage_test_[0]);
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#endif
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#if 0
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uint16_t i,j;
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st7735s_set_window(0,79,0,159);
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LCD_CS_0();
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for(i=0; i<=80; i++)
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{
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for (j=0; j<=160; j++)
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{
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LCD_WR_DATA2(Color);
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}
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}
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co_delay_100us(100);
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LCD_CS_1();
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#endif
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}
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void LCD_Show16BYTE(uint16_t *In,uint32_t len)
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{
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uint8_t DataSend[2];
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uint8_t gImage_test_[LCD_W*LCD_H*2];
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for(int i =0;i<len;i++)
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{
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gImage_test_[i*2] = *(In+i);
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gImage_test_[i*2+1] = *(In+i);
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}
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LCDDrawImage(&gImage_test_[0]);
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}
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void st7735s_display_wait_transfer_done(void)
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{
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//while(dma_transfer_done == false);
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}
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/******************************************************************************
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Function: Set point color
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******************************************************************************/
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void LCDSetPointColor(uint8_t XPoint,uint8_t YPoint,uint16_t Color)
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{
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st7735s_set_window(XPoint,XPoint,YPoint,YPoint);
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LCD_CS_0();
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LCD_WR_DATAHalfWord(Color);
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LCD_CS_1();
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}
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// 获取字符数据
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const uint8_t *get_char_data(char c) {
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if(c < 32 || c > 126) return NULL;
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return &Font5x7_Data[(c - 32) * 5];
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}
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// 绘制字符
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void draw_char(uint8_t x, uint8_t y, char c, uint16_t color) {
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const uint8_t *data = get_char_data(c);
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if(!data) return;
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for(uint8_t col = 0; col < 5; col++) {
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uint8_t pixels = data[col];
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for(uint8_t row = 0; row < 7; row++) {
|
|
|
if(pixels & (1 << row)) {
|
|
|
LCDSetPointColor(x + col, y + row, color);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
// 绘制字符串
|
|
|
void LCD_PutStr(uint8_t x, uint8_t y, const char *str, uint16_t color) {
|
|
|
char c;
|
|
|
while(*str) {
|
|
|
c = *str;
|
|
|
draw_char(x,y,c,color);
|
|
|
x += 6; // 字符宽度+1像素间距
|
|
|
str++;
|
|
|
}
|
|
|
}
|
|
|
/******************************************************************************
|
|
|
Function: show one char
|
|
|
******************************************************************************/
|
|
|
void LCDShowChar(uint8_t XPoint,uint8_t YPoint,char c,uint16_t Color)
|
|
|
{
|
|
|
st7735s_set_window(XPoint,XPoint,YPoint,YPoint);
|
|
|
LCD_CS_0();
|
|
|
LCD_WR_DATAHalfWord(Color);
|
|
|
LCD_CS_1();
|
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
|
Function: Set point color
|
|
|
******************************************************************************/
|
|
|
void LCDDrawImage(uint8_t *p)
|
|
|
{
|
|
|
|
|
|
//LCD_Clear(WHITE);//clean screen
|
|
|
|
|
|
st7735s_set_window(0,LCD_W-1,0,LCD_H-1);
|
|
|
|
|
|
LCD_CS_0();
|
|
|
|
|
|
HAL_SPI_Transmit_DMA(&Spi2Handle, p, LCD_W*LCD_H*2);
|
|
|
|
|
|
// for(i=0; i<=80*160; i++)
|
|
|
// {
|
|
|
// // for (j=0; j<=160; j++)
|
|
|
// {
|
|
|
// PicH = *(p+i*2);//data hight byte first
|
|
|
// PicL = *(p+i*2+1);
|
|
|
// LCD_WR_DATA2(PicH<<8 | PicL);
|
|
|
// printf("0x%X ",PicH);
|
|
|
// printf("0x%X ",PicL);
|
|
|
// //HAL_SPI_Transmit_DMA(&Spi2Handle, p+i*2, 1);
|
|
|
// //HAL_SPI_Transmit_DMA(&Spi2Handle, p+i*2+1, 1);
|
|
|
// }
|
|
|
// }
|
|
|
co_delay_100us(1000);
|
|
|
LCD_CS_1();
|
|
|
}
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
void st7735s_display(uint32_t pixel_count, uint16_t *data, void (*callback)(void))
|
|
|
{
|
|
|
uint32_t i;
|
|
|
uint32_t total_count = pixel_count / 2; // accoding source width
|
|
|
uint8_t link_count = total_count / 4000;
|
|
|
|
|
|
if(dma_transfer_done == false)
|
|
|
{
|
|
|
return;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
dma_transfer_done = false;
|
|
|
}
|
|
|
|
|
|
dma_trans_done_callback = callback;
|
|
|
|
|
|
if(total_count % 4000)
|
|
|
{
|
|
|
link_count++;
|
|
|
}
|
|
|
|
|
|
for (i = 0; i < link_count; i++)
|
|
|
{
|
|
|
uint8_t all_set = (total_count <= 4000);
|
|
|
|
|
|
LinkParameter.SrcAddr = (uint32_t)&data[i * 8000];
|
|
|
LinkParameter.DstAddr = (uint32_t)&SPIM1->DR;
|
|
|
if(all_set)
|
|
|
{
|
|
|
LinkParameter.NextLink = 0;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
LinkParameter.NextLink = (uint32_t)&Link_Channel[i + 1];
|
|
|
}
|
|
|
LinkParameter.Data_Flow = DMA_M2P_DMAC;
|
|
|
LinkParameter.Request_ID = ST7735S_DMA_Channel.Init.Request_ID;
|
|
|
LinkParameter.Source_Inc = DMA_ADDR_INC_INC;
|
|
|
LinkParameter.Desination_Inc = DMA_ADDR_INC_NO_CHANGE;
|
|
|
LinkParameter.Source_Width = DMA_TRANSFER_WIDTH_32;
|
|
|
LinkParameter.Desination_Width = DMA_TRANSFER_WIDTH_16;
|
|
|
LinkParameter.Burst_Len = DMA_BURST_LEN_4;
|
|
|
LinkParameter.Size = all_set ? (total_count) : 4000;
|
|
|
LinkParameter.gather_enable = 0;
|
|
|
LinkParameter.scatter_enable = 0;
|
|
|
total_count -= 4000;
|
|
|
|
|
|
dma_linked_list_init(&Link_Channel[i], &LinkParameter);
|
|
|
}
|
|
|
|
|
|
ST7735S_SPI_Handle.Init.Frame_Size = SPI_FRAME_SIZE_16BIT;
|
|
|
ST7735S_SPI_Handle.MultWireParam.Wire_X2X4 = Wire_X4;
|
|
|
ST7735S_SPI_Handle.MultWireParam.InstructLength = INST_8BIT;
|
|
|
ST7735S_SPI_Handle.MultWireParam.Instruct = 0x32;
|
|
|
ST7735S_SPI_Handle.MultWireParam.AddressLength = ADDR_24BIT;
|
|
|
ST7735S_SPI_Handle.MultWireParam.Address = 0x003C00;
|
|
|
|
|
|
LCD_CS_1();
|
|
|
spi_master_transmit_X2X4_DMA(&ST7735S_SPI_Handle);
|
|
|
dma_linked_list_start_IT(Link_Channel, &LinkParameter, ST7735S_DMA_Channel.Channel);
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
|
|
|
void st7735s_display_gather(uint32_t pixel_count, uint16_t *data, uint16_t interval, uint16_t count)
|
|
|
{
|
|
|
#define DMA_TRANSFER_SIZE 4000
|
|
|
uint32_t total_count = pixel_count / 2; // accoding source width
|
|
|
uint16_t line_count_in_single_list = DMA_TRANSFER_SIZE/(count/2);
|
|
|
uint16_t src_width_count_in_single_list = line_count_in_single_list*(count/2);
|
|
|
uint8_t link_count, i;
|
|
|
|
|
|
if(dma_transfer_done == false)
|
|
|
{
|
|
|
return;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
dma_transfer_done = false;
|
|
|
}
|
|
|
|
|
|
link_count = total_count / src_width_count_in_single_list;
|
|
|
if(total_count % src_width_count_in_single_list)
|
|
|
{
|
|
|
link_count++;
|
|
|
}
|
|
|
|
|
|
for (i = 0; i < link_count; i++)
|
|
|
{
|
|
|
uint8_t all_set = (total_count <= src_width_count_in_single_list);
|
|
|
|
|
|
LinkParameter.SrcAddr = (uint32_t)&data[i * interval * line_count_in_single_list];
|
|
|
LinkParameter.DstAddr = (uint32_t)&SPIM1->DR;
|
|
|
if(all_set)
|
|
|
{
|
|
|
LinkParameter.NextLink = 0;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
LinkParameter.NextLink = (uint32_t)&Link_Channel[i + 1];
|
|
|
}
|
|
|
LinkParameter.Data_Flow = DMA_M2P_DMAC;
|
|
|
LinkParameter.Request_ID = ST7735S_DMA_Channel.Init.Request_ID;
|
|
|
LinkParameter.Source_Inc = DMA_ADDR_INC_INC;
|
|
|
LinkParameter.Desination_Inc = DMA_ADDR_INC_NO_CHANGE;
|
|
|
LinkParameter.Source_Width = DMA_TRANSFER_WIDTH_32;
|
|
|
LinkParameter.Desination_Width = DMA_TRANSFER_WIDTH_16;
|
|
|
LinkParameter.Burst_Len = DMA_BURST_LEN_4;
|
|
|
LinkParameter.Size = all_set ? (total_count) : src_width_count_in_single_list;
|
|
|
LinkParameter.gather_enable = 1;
|
|
|
LinkParameter.scatter_enable = 0;
|
|
|
total_count -= src_width_count_in_single_list;
|
|
|
|
|
|
dma_linked_list_init(&Link_Channel[i], &LinkParameter);
|
|
|
}
|
|
|
|
|
|
ST7735S_SPI_Handle.Init.Frame_Size = SPI_FRAME_SIZE_16BIT;
|
|
|
ST7735S_SPI_Handle.MultWireParam.Wire_X2X4 = Wire_X4;
|
|
|
ST7735S_SPI_Handle.MultWireParam.InstructLength = INST_8BIT;
|
|
|
ST7735S_SPI_Handle.MultWireParam.Instruct = 0x32;
|
|
|
ST7735S_SPI_Handle.MultWireParam.AddressLength = ADDR_24BIT;
|
|
|
ST7735S_SPI_Handle.MultWireParam.Address = 0x003C00;
|
|
|
|
|
|
LCD_CS_1();
|
|
|
spi_master_transmit_X2X4_DMA(&ST7735S_SPI_Handle);
|
|
|
|
|
|
__DMA_GATHER_FUNC_ENABLE(ST7735S_DMA_Channel.Channel);
|
|
|
__DMA_GATHER_INTERVAL(ST7735S_DMA_Channel.Channel, (interval-count)/2);
|
|
|
__DMA_GATHER_COUNT(ST7735S_DMA_Channel.Channel, count/2);
|
|
|
dma_linked_list_start_IT(Link_Channel, &LinkParameter, ST7735S_DMA_Channel.Channel);
|
|
|
}
|
|
|
|
|
|
__attribute__((section("ram_code"))) void st7735s_dma_isr(void)
|
|
|
{
|
|
|
void (*callback)();
|
|
|
while(__SPI_IS_BUSY(SPIM1));
|
|
|
|
|
|
// CS Release
|
|
|
LCD_CS_1();
|
|
|
|
|
|
/* Clear Transfer complete status */
|
|
|
dma_clear_tfr_Status(ST7735S_DMA_Channel.Channel);
|
|
|
/* channel Transfer complete interrupt disable */
|
|
|
dma_tfr_interrupt_disable(ST7735S_DMA_Channel.Channel);
|
|
|
|
|
|
__SPI_DISABLE(ST7735S_SPI_Handle.SPIx);
|
|
|
__SPI_DATA_FRAME_SIZE(ST7735S_SPI_Handle.SPIx, SPI_FRAME_SIZE_16BIT);
|
|
|
|
|
|
dma_transfer_done = true;
|
|
|
callback = dma_trans_done_callback;
|
|
|
dma_trans_done_callback = NULL;
|
|
|
if(callback) {
|
|
|
callback();
|
|
|
}
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
|
|
|
/*********************************************END OF FILE*********************************************/
|