【MM32F5270开发板试用】+ TFTLCD FSMC方式驱动

本篇文章来自极术社区与灵动组织的MM32F5270开发板评测活动，更多开发板试用活动请关注极术社区网站。作者：小会

上篇使用IO口方式驱动TFTLCD显示屏，这篇测试使用FSMC例程驱动TFTLCD显示屏。

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 modedelay_ms(120);LCD_WriteCmd(0x0036);LCD_WriteData(0x0060);            //MADCTL: memory data access controlLCD_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 pixelLCD_WriteCmd(0x00B2);LCD_WriteData(0x000C);LCD_WriteData(0x000C);LCD_WriteData(0x0000);LCD_WriteData(0x0033);LCD_WriteData(0x0033);            //PORCTRK: Porch settingLCD_WriteCmd(0x00B7);LCD_WriteData(0x0035);            //GCTRL: Gate ControlLCD_WriteCmd(0x00BB);LCD_WriteData(0x001c);            //VCOMS: VCOM settingLCD_WriteCmd(0x00C0);LCD_WriteData(0x002C);            //LCMCTRL: LCM ControlLCD_WriteCmd(0x00C2);LCD_WriteData(0x0001);LCD_WriteData(0x00FF);            //VDVVRHEN: VDV and VRH Command EnableLCD_WriteCmd(0x00C3);LCD_WriteData(0x000B);            //VRHS: VRH SetLCD_WriteCmd(0x00C4);LCD_WriteData(0x0020);            //VDVS: VDV SetLCD_WriteCmd(0x00C6);LCD_WriteData(0x000F);            //FRCTRL2: Frame Rate control in normal modeLCD_WriteCmd(0x00D0);LCD_WriteData(0x00A4);LCD_WriteData(0x00A1);            //PWCTRL1: Power Control 1LCD_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 controlLCD_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

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