一、FSMC手册资料
FSMC方式可以驱动多种类型的总线设备，这里显示屏使用的是8080控制方式。
二、代码
主要代码部分如下
2.1、lcd.c
/*
* Copyright 2021 MindMotion Microelectronics Co., Ltd.
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "lcd.h"
#include "board_init.h"
#include "delay.h"
extern void LCD_InitHardware(void);
extern void LCD_WriteCmd(uint16_t cmd);
extern void LCD_WriteData(uint16_t dat);
extern uint16_t LCD_ReadData(void);
static void lcd_rst(void)
{
GPIO_SetBits(BOARD_LCD_RST_GPIO_PORT, BOARD_LCD_RST_GPIO_PIN);
delay_ms(1);
GPIO_ClearBits(BOARD_LCD_RST_GPIO_PORT, BOARD_LCD_RST_GPIO_PIN);
delay_ms(10); // This delay time is necessary
GPIO_SetBits(BOARD_LCD_RST_GPIO_PORT, BOARD_LCD_RST_GPIO_PIN);
delay_ms(120);
}
void LCD_Init(LCD_Init_Type * init)
{
uint32_t id=0;
LCD_InitHardware();
lcd_rst();
LCD_WriteCmd(0x0011); //exit SLEEP mode
delay_ms(120);
LCD_WriteCmd(0x0036);
LCD_WriteData(0x0060); //MADCTL: memory data access control
LCD_WriteCmd(0x003A);
LCD_WriteData(0x0005); //COLMOD: Interface Pixel format *** I use 262K-colors in 18bit/pixel format when using 8-bit interface to allow 3-bytes per pixel
// TFT_24_7789_Write_Command(0x003A);TFT_24_7789_Write_Data(0x0055);//COLMOD: Interface Pixel format *** I use 65K-colors in 16bit/pixel (5-6-5) format when using 16-bit interface to allow 1-byte per pixel
LCD_WriteCmd(0x00B2);
LCD_WriteData(0x000C);
LCD_WriteData(0x000C);
LCD_WriteData(0x0000);
LCD_WriteData(0x0033);
LCD_WriteData(0x0033); //PORCTRK: Porch setting
LCD_WriteCmd(0x00B7);
LCD_WriteData(0x0035); //GCTRL: Gate Control
LCD_WriteCmd(0x00BB);
LCD_WriteData(0x001c); //VCOMS: VCOM setting
LCD_WriteCmd(0x00C0);
LCD_WriteData(0x002C); //LCMCTRL: LCM Control
LCD_WriteCmd(0x00C2);
LCD_WriteData(0x0001);
LCD_WriteData(0x00FF); //VDVVRHEN: VDV and VRH Command Enable
LCD_WriteCmd(0x00C3);
LCD_WriteData(0x000B); //VRHS: VRH Set
LCD_WriteCmd(0x00C4);
LCD_WriteData(0x0020); //VDVS: VDV Set
LCD_WriteCmd(0x00C6);
LCD_WriteData(0x000F); //FRCTRL2: Frame Rate control in normal mode
LCD_WriteCmd(0x00D0);
LCD_WriteData(0x00A4);
LCD_WriteData(0x00A1); //PWCTRL1: Power Control 1
LCD_WriteCmd(0x00E0);
LCD_WriteData(0x00D0);
LCD_WriteData(0x0000);
LCD_WriteData(0x0003);
LCD_WriteData(0x0009);
LCD_WriteData(0x0013);
LCD_WriteData(0x001c);
LCD_WriteData(0x003a);
LCD_WriteData(0x0055);
LCD_WriteData(0x0048);
LCD_WriteData(0x0018);
LCD_WriteData(0x0012);
LCD_WriteData(0x000e);
LCD_WriteData(0x0019);
LCD_WriteData(0x001e); //PVGAMCTRL: Positive Voltage Gamma control
LCD_WriteCmd(0x00E1);
LCD_WriteData(0x00D0);
LCD_WriteData(0x0000);
LCD_WriteData(0x0003);
LCD_WriteData(0x0009);
LCD_WriteData(0x0005);
LCD_WriteData(0x0025);
LCD_WriteData(0x003a);
LCD_WriteData(0x0055);
LCD_WriteData(0x0050);
LCD_WriteData(0x003d);
LCD_WriteData(0x001c);
LCD_WriteData(0x001d);
LCD_WriteData(0x001d);
LCD_WriteData(0x001e);
LCD_WriteCmd(0x0029); //display ON
}
void LCD_SetWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
{
LCD_WriteCmd(0x2a);
LCD_WriteData(x0 >> 8);
LCD_WriteData(x0 & 0xff);
LCD_WriteData(x1 >> 8);
LCD_WriteData(x1 & 0xff);
LCD_WriteCmd(0x2b);
LCD_WriteData(y0 >> 8);
LCD_WriteData(y0 & 0xff);
LCD_WriteData(y1 >> 8);
LCD_WriteData(y1 & 0xff);
}
void LCD_ClearWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color)
{
LCD_SetWindow(x0, y0, x1, y1);
LCD_WriteCmd(0x2c);
for(uint32_t i = 0; i <= x1 - x0; i++)
{
for(uint32_t j = 0; j <= y1 - y0; j++)
{
LCD_WriteData(color);
}
}
}
void LCD_FillWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t * color)
{
LCD_SetWindow(x0, y0, x1, y1);
LCD_WriteCmd(0x2c);
for(uint32_t i = 0; i <= x1 - x0; i++)
{
for(uint32_t j = 0; j <= y1 - y0; j++)
{
LCD_WriteData((* color++));
}
}
}
void LCD_DrawPixel(uint16_t x, uint16_t y, uint16_t color)
{
LCD_ClearWindow(x, y, x, y, color);
}
2.2、lcd_port.c
/*
* Copyright 2021 MindMotion Microelectronics Co., Ltd.
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "lcd.h"
#include "board_init.h"
void LCD_InitHardware(void)
{
FSMC_Init_Type fsmc_init =
{
.MemType = FSMC_MemType_SRAM,
.MemSize = FSMC_MemSize_64MB
};
FSMC_Conf_Type fsmc_conf =
{
.ReadPeriod = 0x1u,
.AddrSetTime = 0x3u,
.WriteHoldTime = 0x1u,
.WritePeriod = 0x2u,
.ReadySignal = FSMC_ReadySignal_Internal,
.SMReadPipe = 0u,
.BusWidth = FSMC_BusWidth_16b
};
FSMC_Init(BOARD_LCD_FSMC_PORT, 3, &fsmc_init);
FSMC_SetConf(BOARD_LCD_FSMC_PORT, BOARD_LCD_FSMC_SET_INDEX, &fsmc_conf);
FSMC_EnableConf(BOARD_LCD_FSMC_PORT, 3, BOARD_LCD_FSMC_SET_INDEX);
GPIO_WriteBit(BOARD_LCD_BL_GPIO_PORT, BOARD_LCD_BL_GPIO_PIN, 1u); /* enable back light. */
}
void LCD_WriteCmd(uint16_t cmd)
{
FSMC_PutData16(BOARD_LCD_FSMC_PORT, 3, 0, cmd);
}
void LCD_WriteData(uint16_t dat)
{
FSMC_PutData16(BOARD_LCD_FSMC_PORT, 3, (1u << BOARD_LCD_FSMC_RS_BIT_INDEX), dat);
}
uint16_t LCD_ReadData(void)
{
return FSMC_GetData16(BOARD_LCD_FSMC_PORT, 3, (1 << BOARD_LCD_FSMC_RS_BIT_INDEX));
}
/* EOF. */
2.3、main.c
int main(void)
{
BOARD_Init();
delay_init();
/* init the lcd. */
LCD_Init_Type lcd_init =
{
.DisplayMode = LCD_DisplayMode_Landspace,
};
LCD_Init(&lcd_init);
printf("\r\nmm32f5270 test.\r\n");
while(1)
{
GPIO_WriteBit(BOARD_LED0_GPIO_PORT, BOARD_LED0_GPIO_PIN, 1u);
delay_ms(100);
GPIO_WriteBit(BOARD_LED0_GPIO_PORT, BOARD_LED0_GPIO_PIN, 0u);
delay_ms(100);
LCD_ClearWindow(0u, 0u, BOARD_LCD_HEIGHT-1u, BOARD_LCD_WIDTH-1u, LCD_COLOR_RED);
delay_ms(1000);
LCD_ClearWindow(0u, 0u, BOARD_LCD_HEIGHT-1u, BOARD_LCD_WIDTH-1u, LCD_COLOR_GREEN);
delay_ms(1000);
LCD_ClearWindow(0u, 0u, BOARD_LCD_HEIGHT-1u, BOARD_LCD_WIDTH-1u, LCD_COLOR_BLUE);
delay_ms(1000);
}
}
三、程序运行
显示刷屏
————————————————
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
原文链接：https://blog.csdn.net/weixin_47569031/article/details/127427167
|
|
楼主
标题置顶
标题高亮
