本帖最后由 xfcjava2 于 2020-2-4 13:41 编辑
SPI DMA 软件驱动部分代码如下：
//1. 文件名称： LCD_DisplayTask.c
#include "TFT_dma.h"
/****************************************************************************
* 功 能： SPI1-----初始化函数
*---------------------------------------------------------------------------*
* 入口参数：nil
* 出口参数：nil
****************************************************************************/
void LCD_Flash_SPI1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC|
RCC_APB2Periph_SPI1, ENABLE);
//Configure SPI1 pins: SCK,and MOSI
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
GPIO_Init(GPIOA,&GPIO_InitStructure);
//Configure SPI1 pins: MISO
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //下拉输入
GPIO_Init(GPIOA,&GPIO_InitStructure);
//Configure: PC.0---CS; PC.1---RESEET; PC.2---D/C;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
GPIO_Init(GPIOD,&GPIO_InitStructure);
GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2);
// SPI1 Config
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1,&SPI_InitStructure);
// SPI1 enable
SPI_Cmd(SPI1,ENABLE);
}
static void AppTaskStart (void *p_arg)
{
(void)p_arg;
BSP_Init();
RCC_Configuration();
TFT28LCD_GPIO_Config();//引脚配置
LCD_Flash_SPI1_Init();
SPI_LCD_DMAInit();
GUI_Init(); //GUI初始化时
AppTaskCreate(); //创建应用任务,启动触摸屏任务
while(1){
TOP_Task();
OSTimeDly(100);
}
}
//2. 文件名称：TFT_dma.h
#ifndef __TFT_DMA_H
#define __TFT_DMA_H
#include "TFT_Control.h"
#include <stm32f10x_dma.h>
#define dmaWait() while(SPI_I2S_GetFlagStatus(SPI_MASTER,SPI_I2S_FLAG_BSY) == SET);
#define dmaStartRx() DMA_Init(DMA1_Channel2, &dmaStructure); \
DMA_Cmd(DMA1_Channel2, ENABLE);
#define dmaStartTx() DMA_Init(DMA1_Channel3, &dmaStructure); \
DMA_Cmd(DMA1_Channel3, ENABLE);
void SPI_LCD_DMAInit(void);
void dmaSendCmd(u8 cmd);
void dmaSendCmdCont(u8 cmd);
void dmaReceiveDataCont8(u8 *data);
void dmaSendData8(u8 *data, u32 n);
void dmaSendData16(u16 *data, u32 n);
void dmaSendDataCont8(u8 *data, u32 n);
void dmaSendDataCont16(u16 *data, u32 n);
void dmaSendDataBuf16(void);
void dmaSendDataContBuf16(u16 *data, u32 n);
void dmaFill16(u16 color, u32 n);
#endif
//3. 文件名称：TFT_Control.h
#ifndef __TFT_CONTROL_H
#define __TFT_CONTROL_H
#include "TFT_Config.h"
#include "TFT_Commands.h"
#define TFT_DC_SET GPIO_SetBits(GPIOC, TFT_DC_PIN);
#define TFT_DC_RESET GPIO_ResetBits(GPIOC, TFT_DC_PIN);
#define TFT_RST_SET GPIO_SetBits(GPIOC, TFT_RESET_PIN);
#define TFT_RST_RESET GPIO_ResetBits(GPIOC, TFT_RESET_PIN);
#define TFT_CS_SET GPIO_SetBits(GPIOC, TFT_CS_PIN);
#define TFT_CS_RESET GPIO_ResetBits(GPIOC, TFT_CS_PIN);
#endif
//4. 文件名称：TFT_Config.h
#ifndef __TFT_CONFIG_H
#define __TFT_CONFIG_H
#define TFT_RESET_PIN GPIO_Pin_1
#define TFT_DC_PIN GPIO_Pin_2
#define TFT_CS_PIN GPIO_Pin_0
#define TFT_CTRL_GPIO GPIOC
#define SPI_MASTER SPI1
#define SPI_MASTER_CLK RCC_APB2Periph_SPI1
#define SPI_MASTER_GPIO GPIOA
#define SPI_MASTER_GPIO_CLK RCC_APB2Periph_GPIOA
//#define SPI_MASTER_PIN_NSS GPIO_Pin_4
#define SPI_MASTER_PIN_SCK GPIO_Pin_5
#define SPI_MASTER_PIN_MISO GPIO_Pin_6
#define SPI_MASTER_PIN_MOSI GPIO_Pin_7
#define BLACK 0x0000 /* 0, 0, 0 */
#define NAVY 0x000F /* 0, 0, 128 */
#define DGREEN 0x03E0 /* 0, 128, 0 */
#define DCYAN 0x03EF /* 0, 128, 128 */
#define MAROON 0x7800 /* 128, 0, 0 */
#define PURPLE 0x780F /* 128, 0, 128 */
#define OLIVE 0x7BE0 /* 128, 128, 0 */
#define COLOR_LGRAY 0xC618 /* 192, 192, 192 */
#define DGRAY 0x7BEF /* 128, 128, 128 */
#define BLUE 0x001F /* 0, 0, 255 */
#define GREEN 0x07E0 /* 0, 255, 0 */
#define COLOR_CYAN 0x07FF /* 0, 255, 255 */
#define RED 0xF800 /* 255, 0, 0 */
#define MAGENTA 0xF81F /* 255, 0, 255 */
#define YELLOW 0xFFE0 /* 255, 255, 0 */
#define WHITE 0xFFFF /* 255, 255, 255 */
#define ORANGE 0xFD20 /* 255, 165, 0 */
#define GREENYELLOW 0xAFE5 /* 173, 255, 47 */
#define BROWN 0XBC40
#define BRRED 0XFC07
#endif
//5. 文件名称：TFT_Commands.h
#ifndef __TFT_COMMANDS_H
#define __TFT_COMMANDS_H
/* Level 1 Commands */
#define LCD_SWRESET 0x01 /* Software Reset */
#define LCD_READ_DISPLAY_ID 0x04 /* Read display identification information */
#define LCD_RDDST 0x09 /* Read Display Status */
#define LCD_RDDPM 0x0A /* Read Display Power Mode */
#define LCD_RDDMADCTL 0x0B /* Read Display MADCTL */
#define LCD_RDDCOLMOD 0x0C /* Read Display Pixel Format */
#define LCD_RDDIM 0x0D /* Read Display Image Format */
#define LCD_RDDSM 0x0E /* Read Display Signal Mode */
#define LCD_RDDSDR 0x0F /* Read Display Self-Diagnostic Result */
#define LCD_SPLIN 0x10 /* Enter Sleep Mode */
#define LCD_SLEEP_OUT 0x11 /* Sleep out register */
#define LCD_PTLON 0x12 /* Partial Mode ON */
#define LCD_NORMAL_MODE_ON 0x13 /* Normal Display Mode ON */
#define LCD_DINVOFF 0x20 /* Display Inversion OFF */
#define LCD_DINVON 0x21 /* Display Inversion ON */
#define LCD_GAMMA 0x26 /* Gamma register */
#define LCD_DISPLAY_OFF 0x28 /* Display off register */
#define LCD_DISPLAY_ON 0x29 /* Display on register */
#define LCD_COLUMN_ADDR 0x2A /* Colomn address register */
#define LCD_PAGE_ADDR 0x2B /* Page address register */
#define LCD_GRAM 0x2C /* GRAM register */
#define LCD_RGBSET 0x2D /* Color SET */
#define LCD_RAMRD 0x2E /* Memory Read */
#define LCD_PLTAR 0x30 /* Partial Area */
#define LCD_VSCRDEF 0x33 /* Vertical Scrolling Definition */
#define LCD_TEOFF 0x34 /* Tearing Effect Line OFF */
#define LCD_TEON 0x35 /* Tearing Effect Line ON */
#define LCD_MAC 0x36 /* Memory Access Control register*/
#define LCD_VSCRSADD 0x37 /* Vertical Scrolling Start Address */
#define LCD_IDMOFF 0x38 /* Idle Mode OFF */
#define LCD_IDMON 0x39 /* Idle Mode ON */
#define LCD_PIXEL_FORMAT 0x3A /* Pixel Format register */
#define LCD_WRITE_MEM_CONTINUE 0x3C /* Write Memory Continue */
#define LCD_READ_MEM_CONTINUE 0x3E /* Read Memory Continue */
#define LCD_SET_TEAR_SCANLINE 0x44 /* Set Tear Scanline */
#define LCD_GET_SCANLINE 0x45 /* Get Scanline */
#define LCD_WDB 0x51 /* Write Brightness Display register */
#define LCD_RDDISBV 0x52 /* Read Display Brightness */
#define LCD_WCD 0x53 /* Write Control Display register*/
#define LCD_RDCTRLD 0x54 /* Read CTRL Display */
#define LCD_WRCABC 0x55 /* Write Content Adaptive Brightness Control */
#define LCD_RDCABC 0x56 /* Read Content Adaptive Brightness Control */
#define LCD_WRITE_CABC 0x5E /* Write CABC Minimum Brightness */
#define LCD_READ_CABC 0x5F /* Read CABC Minimum Brightness */
#define LCD_READ_ID1 0xDA /* Read ID1 */
#define LCD_READ_ID2 0xDB /* Read ID2 */
#define LCD_READ_ID3 0xDC /* Read ID3 */
/* Level 2 Commands */
#define LCD_RGB_INTERFACE 0xB0 /* RGB Interface Signal Control */
#define LCD_FRMCTR1 0xB1 /* Frame Rate Control (In Normal Mode) */
#define LCD_FRMCTR2 0xB2 /* Frame Rate Control (In Idle Mode) */
#define LCD_FRMCTR3 0xB3 /* Frame Rate Control (In Partial Mode) */
#define LCD_INVTR 0xB4 /* Display Inversion Control */
#define LCD_BPC 0xB5 /* Blanking Porch Control register */
#define LCD_DFC 0xB6 /* Display Function Control register */
#define LCD_ETMOD 0xB7 /* Entry Mode Set */
#define LCD_BACKLIGHT1 0xB8 /* Backlight Control 1 */
#define LCD_BACKLIGHT2 0xB9 /* Backlight Control 2 */
#define LCD_BACKLIGHT3 0xBA /* Backlight Control 3 */
#define LCD_BACKLIGHT4 0xBB /* Backlight Control 4 */
#define LCD_BACKLIGHT5 0xBC /* Backlight Control 5 */
#define LCD_BACKLIGHT7 0xBE /* Backlight Control 7 */
#define LCD_BACKLIGHT8 0xBF /* Backlight Control 8 */
#define LCD_POWER1 0xC0 /* Power Control 1 register */
#define LCD_POWER2 0xC1 /* Power Control 2 register */
#define LCD_VCOM1 0xC5 /* VCOM Control 1 register */
#define LCD_VCOM2 0xC7 /* VCOM Control 2 register */
#define LCD_NVMWR 0xD0 /* NV Memory Write */
#define LCD_NVMPKEY 0xD1 /* NV Memory Protection Key */
#define LCD_RDNVM 0xD2 /* NV Memory Status Read */
#define LCD_READ_ID4 0xD3 /* Read ID4 */
#define LCD_PGAMMA 0xE0 /* Positive Gamma Correction register */
#define LCD_NGAMMA 0xE1 /* Negative Gamma Correction register */
#define LCD_DGAMCTRL1 0xE2 /* Digital Gamma Control 1 */
#define LCD_DGAMCTRL2 0xE3 /* Digital Gamma Control 2 */
#define LCD_INTERFACE 0xF6 /* Interface control register */
/* Extend register commands */
#define LCD_POWERA 0xCB /* Power control A register */
#define LCD_POWERB 0xCF /* Power control B register */
#define LCD_DTCA 0xE8 /* Driver timing control A */
#define LCD_DTCB 0xEA /* Driver timing control B */
#define LCD_POWER_SEQ 0xED /* Power on sequence register */
#define LCD_3GAMMA_EN 0xF2 /* 3 Gamma enable register */
#define LCD_PRC 0xF7 /* Pump ratio control register */
#define ORIENTATION_PORTRAIT 0x48
#define ORIENTATION_LANDSCAPE 0x28
#define ORIENTATION_PORTRAIT_MIRROR 0x88
#define ORIENTATION_LANDSCAPE_MIRROR 0xE8
#define LCD_PIXEL_WIDTH 320
#define LCD_PIXEL_HEIGHT 240
#define LCD_PIXEL_COUNT LCD_PIXEL_WIDTH * LCD_PIXEL_HEIGHT
#endif
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