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软件SPI可以驱动屏幕

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This commit is contained in:
Wanderingss
2026-07-14 14:44:07 +08:00
parent 3577003fb6
commit 0a5c478a42
53 changed files with 9354 additions and 87 deletions
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55
STM32F103C8T6/Core/Src/dma.c Normal file
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@@ -0,0 +1,55 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file dma.c
* @brief This file provides code for the configuration
* of all the requested memory to memory DMA transfers.
******************************************************************************
* @attention
*
* Copyright (c) 2026 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "dma.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/*----------------------------------------------------------------------------*/
/* Configure DMA */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/**
* Enable DMA controller clock
*/
void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DMA interrupt init */
/* DMA1_Channel5_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel5_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel5_IRQn);
}
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */

6
STM32F103C8T6/Core/Src/gpio.c
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@@ -54,7 +54,7 @@ void MX_GPIO_Init(void)
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, LCD_RST_Pin|LCD_SCL_Pin|LCD_SDA_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOB, LCD_DC_Pin|LCD_CS_Pin|LCD_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : LED_Pin */
GPIO_InitStruct.Pin = LED_Pin;
@@ -69,8 +69,8 @@ void MX_GPIO_Init(void)
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : LCD_RST_Pin LCD_SCL_Pin LCD_SDA_Pin */
GPIO_InitStruct.Pin = LCD_RST_Pin|LCD_SCL_Pin|LCD_SDA_Pin;
/*Configure GPIO pins : LCD_DC_Pin LCD_CS_Pin LCD_RST_Pin */
GPIO_InitStruct.Pin = LCD_DC_Pin|LCD_CS_Pin|LCD_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;

22
STM32F103C8T6/Core/Src/main.c
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@@ -18,12 +18,16 @@
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "dma.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"
#include "lcd_data.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "button_driver.h"
#include "st7735s.h"
/* USER CODE END Includes */
@@ -87,9 +91,21 @@ int main(void)
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_USART1_UART_Init();
MX_SPI2_Init();
/* USER CODE BEGIN 2 */
printf("\r\nSTM32F103C8T6 Boot OK\r\n");
button_driver_init();
st7735s_init();
st7735s_fill_screen(COLOR_RED);
HAL_Delay(500);
st7735s_fill_screen(COLOR_GREEN);
HAL_Delay(500);
st7735s_fill_screen(COLOR_BLUE);
HAL_Delay(500);
st7735s_fill_screen(COLOR_BLACK);
st7735s_draw_string(0, 0, "LCD OK", COLOR_WHITE, COLOR_BLACK);
/* USER CODE END 2 */
/* Infinite loop */
@@ -101,7 +117,7 @@ int main(void)
/* USER CODE BEGIN 3 */
HAL_Delay(500);
HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
printf("Hello word\n");
//printf("Hello word\n");
}
/* USER CODE END 3 */
}

136
STM32F103C8T6/Core/Src/spi.c Normal file
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@@ -0,0 +1,136 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file spi.c
* @brief This file provides code for the configuration
* of the SPI instances.
******************************************************************************
* @attention
*
* Copyright (c) 2026 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "spi.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
SPI_HandleTypeDef hspi2;
DMA_HandleTypeDef hdma_spi2_tx;
/* SPI2 init function */
void MX_SPI2_Init(void)
{
/* USER CODE BEGIN SPI2_Init 0 */
/* USER CODE END SPI2_Init 0 */
/* USER CODE BEGIN SPI2_Init 1 */
/* USER CODE END SPI2_Init 1 */
hspi2.Instance = SPI2;
hspi2.Init.Mode = SPI_MODE_MASTER;
hspi2.Init.Direction = SPI_DIRECTION_2LINES;
hspi2.Init.DataSize = SPI_DATASIZE_8BIT;
hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi2.Init.NSS = SPI_NSS_SOFT;
hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi2.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI2_Init 2 */
/* USER CODE END SPI2_Init 2 */
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(spiHandle->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* SPI2 clock enable */
__HAL_RCC_SPI2_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/**SPI2 GPIO Configuration
PB13 ------> SPI2_SCK
PB15 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* SPI2 DMA Init */
/* SPI2_TX Init */
hdma_spi2_tx.Instance = DMA1_Channel5;
hdma_spi2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_spi2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_spi2_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_spi2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_spi2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_spi2_tx.Init.Mode = DMA_NORMAL;
hdma_spi2_tx.Init.Priority = DMA_PRIORITY_LOW;
if (HAL_DMA_Init(&hdma_spi2_tx) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(spiHandle,hdmatx,hdma_spi2_tx);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
{
if(spiHandle->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspDeInit 0 */
/* USER CODE END SPI2_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_SPI2_CLK_DISABLE();
/**SPI2 GPIO Configuration
PB13 ------> SPI2_SCK
PB15 ------> SPI2_MOSI
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13|GPIO_PIN_15);
/* SPI2 DMA DeInit */
HAL_DMA_DeInit(spiHandle->hdmatx);
/* USER CODE BEGIN SPI2_MspDeInit 1 */
/* USER CODE END SPI2_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

27
STM32F103C8T6/Core/Src/stm32f1xx_it.c
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@@ -22,6 +22,8 @@
#include "stm32f1xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "multi_button.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
@@ -41,7 +43,7 @@
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
static uint8_t s_button_tick_counter = 0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
@@ -55,7 +57,7 @@
/* USER CODE END 0 */
/* External variables --------------------------------------------------------*/
extern DMA_HandleTypeDef hdma_spi2_tx;
/* USER CODE BEGIN EV */
/* USER CODE END EV */
@@ -188,6 +190,13 @@ void SysTick_Handler(void)
HAL_IncTick();
/* USER CODE BEGIN SysTick_IRQn 1 */
/* 每5ms调用一次button_ticks() */
s_button_tick_counter++;
if (s_button_tick_counter >= 5) {
s_button_tick_counter = 0;
button_ticks();
}
/* USER CODE END SysTick_IRQn 1 */
}
@@ -198,6 +207,20 @@ void SysTick_Handler(void)
/* please refer to the startup file (startup_stm32f1xx.s). */
/******************************************************************************/
/**
* @brief This function handles DMA1 channel5 global interrupt.
*/
void DMA1_Channel5_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Channel5_IRQn 0 */
/* USER CODE END DMA1_Channel5_IRQn 0 */
HAL_DMA_IRQHandler(&hdma_spi2_tx);
/* USER CODE BEGIN DMA1_Channel5_IRQn 1 */
/* USER CODE END DMA1_Channel5_IRQn 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */