fsmc驱动1335（8335）

只看该作者 · 2010-7-23 21:11

cpu stm32f103，晶振12M，调试好几天啦，就是不出字，程序如下，
void LCD_Init(void)
{
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, DISABLE);
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);

  STM3210E_LCD_Init();
}

void STM3210E_LCD_Init(void)
{
  LCD_CtrlLinesConfig();
  LCD_FSMCConfig();
}
void LCD_CtrlLinesConfig(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  /* 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_GPIOF | RCC_APB2Periph_GPIOG |
                     RCC_APB2Periph_AFIO, ENABLE);
  /* Set PD.00(D2), PD.01(D3), PD.04(NOE), PD.05(NWE), PD.14(D0), PD.15(D1) as alternate
   function push pull */
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_0 | GPIO
_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
                              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);
  /* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7) as alternate function push pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
  GPIO_Init(GPIOE, &GPIO_InitStructure);
  /* Set PF.00(A0 (RS)) as alternate function push pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
  GPIO_Init(GPIOF, &GPIO_InitStructure);
  /* Set PG.12(NE4 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
  /* Set PG.9(NE2 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_Init(GPIOG, &GPIO_InitStructure);
}
void LCD_FSMCConfig(void)
{
  FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
  FSMC_NORSRAMTimingInitTypeDef  p;
/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 2 ----------------------------------------*/
  /* FSMC_Bank1_NORSRAM2 configuration */
  p.FSMC_AddressSetupTime = 1;
  p.FSMC_AddressHoldTime = 1;
  p.FSMC_DataSetupTime = 20;
  p.FSMC_BusTurnAroundDuration = 0;
  p.FSMC_CLKDivision = 0;
  p.FSMC_DataLatency = 1;
  p.FSMC_AccessMode = FSMC_AccessMode_A;
  /* Color LCD configuration ------------------------------------
   LCD configured as follow:
      - Data/Address MUX = Disable
      - Memory Type = SRAM
      - Data Width = 8bit
      - Write Operation = Enable
      - Extended Mode = Enable
      - Asynchronous Wait = Disable */
  FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
  FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
  FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
  FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
  FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_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_AsyncWait = FSMC_AsyncWait_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
  /* BANK 2 (of NOR/SRAM Bank 1~4) is enabled */
  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM2, ENABLE);
}