【经验分享】STM32 FSMC TFT LCD

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STMCU小助手发布时间：2022-1-29 01:04

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文章简介:	STM32 FSMC TFT LCD

STM32+SSD1963+TFT(FSMC)已调试通过的代码。

其中要注意的两点：

1.外部访问地址需加volatile，否则keil MDK 优化会将部分代码优化掉，造成错误。

　volatile关键字是一种类型修饰符，用它声明的类型变量表示可以被某些编译器未知的因素更改，比如：操作系统、硬件或者其它线程等。遇到这个关键字声明的变量，编译器对访问该变量的代码就不再进行优化，从而可以提供对特殊地址的稳定访问。
2. FSMC内部地址和外部实际地址有区别。如A18连线对应内部地址是A19。

<div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">// ssd1963 #d/c -------- STM32F103VCT6 A18
</font></div><font face="Tahoma" color="#000000">
</font><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">#define LCD_COMM_ADD *((volatile u16 *)0X60000000)
#define LCD_DATA_ADD *((volatile u16 *)0X60080000)
</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000"> #define WriteCommand(cmd) {LCD_COMM_ADD = cmd;}
#define WriteData(data) {LCD_DATA_ADD = data;}</font></div><font face="Tahoma" color="#000000">
</font><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">void LCDFSMCConfig(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef p;
GPIO_InitTypeDef GPIO_InitStructure;
/*-- FSMC Configuration ------------------------------------------------------*/</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">/* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
RCC_APB2Periph_AFIO, ENABLE);</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">/*===========GPIO For the LCD_Bus========================*/
/* Data /Address lines configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 |
GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000"> GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 |
GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOE, &GPIO_InitStructure);</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000"> /* Address lines configuration: A18*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure); </font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000"> /*===========GPIO For the Control========================*/
/*!< NOE and NWE configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 |GPIO_Pin_5;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/*!< NE1 configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/*!< NADV configuration */
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
// GPIO_Init(GPIOB, &GPIO_InitStructure);
#ifdef LCD_USE_TE
/*TE :busy*/
GPIO_InitStructure.GPIO_Pin = GPIO_PIN_LCD_TE;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIO_PORT_LCD_TE, &GPIO_InitStructure);
#endif
/*!< NBL0, NBL1 configuration */
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
// GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_SetBits(GPIOD, GPIO_Pin_7); //CS=1
GPIO_SetBits(GPIOD, GPIO_Pin_14| GPIO_Pin_15 |GPIO_Pin_0 | GPIO_Pin_1);
GPIO_SetBits(GPIOE, GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10);
GPIO_ResetBits(GPIOE, GPIO_Pin_0);
GPIO_ResetBits(GPIOE, GPIO_Pin_1); //RESET=0
GPIO_SetBits(GPIOD, GPIO_Pin_4); //RD=1
GPIO_SetBits(GPIOD, GPIO_Pin_5); //WR=1
/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 1----------------------------------------*/
/* FSMC_Bank1_NORSRAM1 configuration */
p.FSMC_AddressSetupTime = 0x02;//1;
p.FSMC_AddressHoldTime = 0x00;//0;
p.FSMC_DataSetupTime = 0x05;//5//2;
p.FSMC_BusTurnAroundDuration = 0;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_B;//FSMC_AccessMode_A;
/* Color LCD configuration ------------------------------------
LCD configured as follow:
- Data/Address MUX = Enable
- Memory Type = SRAM
- Data Width = 16bit
- Write Operation = Enable
- Extended Mode = Enable
- Asynchronous Wait = Disable */
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; //hy@
// FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Enable; //hy@
// FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;//FSMC_MemoryType_NOR;//FSMC_MemoryType_SRAM;//
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;//FSMC_MemoryType_SRAM;//</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000"> FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
// FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
/* BANK 1 (of NOR/SRAM Bank 1~4) is enabled */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);
}</font></div><font face="Tahoma" color="#000000">
</font><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">/**
* @brief Initializes the LCD.
* @param None
* @retval None
*/
void IzLCDDisplayInit(void)
{</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">/* Configure the FSMC Parallel interface -------------------------------------*/
LCDFSMCConfig();
DelayLoop(5); /* delay 50 ms */
//LCD_SetFont(&LCDDEFAULTFONT);
LCDSetFont(&LCDDEFAULTFONT);
InitSSD1963();</font></div><div align="left"><font style="font-size: 13px" face="Tahoma" color="#000000">
}</font></div>