求大佬！STM32F103VE驱动ILI9488的FSMC16线代码问题

1wqer · 发表于 2022-8-11 17:05:37

用的STM32F103VET6通过fsmc驱动9488显示屏，显示屏一直白屏，无法显示内容，读不出Id，不知道是不是初始化的问题还是硬件问题。

void LCD_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd ( RCC_APB2Periph_AFIO, ENABLE );
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOD|RCC_APB2Periph_GPIOE,ENABLE);//ê1ÄüPORTA,D,EòÔ¼°AFIO¸′óÃ1|Äüê±Öó
      FSMC_LCD_CS_APBxClock_FUN ( FSMC_LCD_CS_CLK, ENABLE );
      FSMC_LCD_DC_APBxClock_FUN ( FSMC_LCD_DC_CLK, ENABLE );
      FSMC_LCD_BK_APBxClock_FUN ( FSMC_LCD_BK_CLK, ENABLE );

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode =  GPIO_Mode_AF_PP;

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_Init ( GPIOD, & GPIO_InitStructure );

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_Init ( GPIOE,  & GPIO_InitStructure );

      * PD4-FSMC_NOE

CD-RD
* PD5-FSMC_NWE

CD-WR
* PD7-FSMC_NE4 : LCD-CS
* PD11-FSMC_A0

CD-DC
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode =  GPIO_Mode_AF_PP;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_Init (GPIOD, & GPIO_InitStructure );

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_Init (GPIOD, & GPIO_InitStructure );

GPIO_InitStructure.GPIO_Pin = FSMC_LCD_CS_PIN;
GPIO_Init ( FSMC_LCD_CS_PORT, & GPIO_InitStructure );

GPIO_InitStructure.GPIO_Pin = FSMC_LCD_DC_PIN;
GPIO_Init ( FSMC_LCD_DC_PORT, & GPIO_InitStructure );
      复位
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOD, &GPIO_InitStructure);
   背光控制
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init ( GPIOA, & GPIO_InitStructure );
}
void LCD_FSMC(void)
{
   FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef  fsmc_lcd;
FSMC_NORSRAMTimingInitTypeDef  fsrc_lcd;

RCC_AHBPeriphClockCmd ( RCC_AHBPeriph_FSMC, ENABLE );

fsmc_lcd.FSMC_AddressSetupTime    = 0x01;
fsmc_lcd.FSMC_AddressHoldTime    = 0x00;
fsmc_lcd.FSMC_DataSetupTime       = 0x0f;
fsmc_lcd.FSMC_BusTurnAroundDuration = 0x00;
fsmc_lcd.FSMC_CLKDivision          = 0x00;
fsmc_lcd.FSMC_DataLatency          = 0x00;
fsmc_lcd.FSMC_AccessMode          = FSMC_AccessMode_A;

fsrc_lcd.FSMC_AddressSetupTime    = 0x00;
fsrc_lcd.FSMC_AddressHoldTime    = 0x00;
fsrc_lcd.FSMC_DataSetupTime       = 0x03;
fsrc_lcd.FSMC_BusTurnAroundDuration = 0x00;
fsrc_lcd.FSMC_CLKDivision          = 0x00;
fsrc_lcd.FSMC_DataLatency          = 0x00;
fsrc_lcd.FSMC_AccessMode          = FSMC_AccessMode_A;

FSMC_NORSRAMInitStructure.FSMC_Bank                = FSMC_Bank1_NORSRAM4;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux       = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType          = FSMC_MemoryType_SRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth    = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode    = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait    =FSMC_AsynchronousWait_Disable;
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 = & fsmc_lcd;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct    = & fsrc_lcd;

FSMC_NORSRAMInit ( & FSMC_NORSRAMInitStructure );
FSMC_NORSRAMCmd ( FSMC_Bank1_NORSRAM4, ENABLE );

LCD_LED=1; 背光
   读取ID
LCD_WR_REG(0XD3);
delay_us(5);
   lcddev.id=LCD_RD_DATA();
   lcddev.id=LCD_RD_DATA();
   lcddev.id=LCD_RD_DATA();
printf("\rIDÎa￡o%04X\r\n",lcddev.id);
}