FSMC驱动7寸TFT(SSD1963)和NandFlash

flytent · 发表于 2014-6-7 18:41:27

我现在正练习用FSMC同时驱动SSD1963和NandFlash，独自驱动时测试都没问题。
给NandFlash进行读或写操作时，TFT彩屏就逐渐变成白色背景了。
可不可能是初始化的问题呢？做过类似东西的请帮忙看看。谢谢！
/**
* TFT彩屏I/O口初始化}
*/
void LCD_GPIOConfiguration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
RCC->APB2ENR |= 0x000001FD;
// 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

D.00(D2), PD.01(D3), PD.04(NOE)--LCD_RD （读）, PD.05(NWE)--LCD_WR（写）,
PD.08(D13),PD.09(D14),PD.10(D15),PD.14(D0),PD.15(D1) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 | 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; /*复用推挽输出*/
GPIO_Init(GPIOD, &GPIO_InitStructure);

/* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7), PE.11(D8), PE.12(D9), PE.13(D10),

E.14(D11), PE.15(D12) as alternate function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | 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);

/* 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 PE2 (LCD_CS) as alternate function push pull - CE3(LCD /CS) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOG, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD; /*复用推挽输出*/
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_ResetBits(GPIOE, GPIO_Pin_2);
}

/**
* TFT彩屏FSMC总线初始化}
*/
void LCD_FSMCConfiguration(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef FSMC_NORSRAMTimingInitStructure;

/*-- FSMC Configuration ------------------------------------------------------*/
/*----------------------- SRAM Bank 4 ----------------------------------------*/
/* FSMC_Bank1_NORSRAM4 configuration */
FSMC_NORSRAMTimingInitStructure.FSMC_AddressSetupTime = 3;
FSMC_NORSRAMTimingInitStructure.FSMC_AddressHoldTime = 4;
FSMC_NORSRAMTimingInitStructure.FSMC_DataSetupTime = 2;
FSMC_NORSRAMTimingInitStructure.FSMC_BusTurnAroundDuration = 0;
FSMC_NORSRAMTimingInitStructure.FSMC_CLKDivision = 0;
FSMC_NORSRAMTimingInitStructure.FSMC_DataLatency = 0;
FSMC_NORSRAMTimingInitStructure.FSMC_AccessMode = FSMC_AccessMode_A;

/* Color LCD configuration ------------------------------------
LCD configured as follow:
- Data/Address MUX = Disable
- Memory Type = SRAM
- Data Width = 16bit
- Write Operation = Enable
- Extended Mode = Enable
- Asynchronous Wait = Disable */
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_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_NORSRAMTimingInitStructure;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &FSMC_NORSRAMTimingInitStructure;

FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);

/* BANK 4 (of NOR/SRAM Bank 1~4) is enabled */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
}

void FSMC_NAND_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
FSMC_NANDInitTypeDef FSMC_NANDInitStructure;
FSMC_NAND_PCCARDTimingInitTypeDef FSMC_NAND_PCCARDTimingInitStructure;

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE); /* 开发FSMC时钟 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG | RCC_APB2Periph_AFIO, ENABLE);

/*-- GPIO Configuration ------------------------------------------------------*/

/*--IO2, IO3, RE, WE, CE, CLE, ALE, IO0, IO1 pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
GPIO_Pin_7 | GPIO_Pin_11 | GPIO_Pin_12 | 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);

/*--IO4, IO5, IO6, IO7 pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
GPIO_Init(GPIOE, &GPIO_InitStructure);


/* NWAIT pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOD, &GPIO_InitStructure);

/* INT2 pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_Init(GPIOG, &GPIO_InitStructure);

/*-- FSMC Configuration ------------------------------------------------------*/
FSMC_NAND_PCCARDTimingInitStructure.FSMC_SetupTime = 0x1;
FSMC_NAND_PCCARDTimingInitStructure.FSMC_WaitSetupTime = 0x3;
FSMC_NAND_PCCARDTimingInitStructure.FSMC_HoldSetupTime = 0x2;
FSMC_NAND_PCCARDTimingInitStructure.FSMC_HiZSetupTime = 0x1;

FSMC_NANDInitStructure.FSMC_Bank = FSMC_Bank2_NAND;
FSMC_NANDInitStructure.FSMC_Waitfeature = FSMC_Waitfeature_Enable;
FSMC_NANDInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
FSMC_NANDInitStructure.FSMC_ECC = FSMC_ECC_Enable;
FSMC_NANDInitStructure.FSMC_ECCPageSize = FSMC_ECCPageSize_512Bytes;
FSMC_NANDInitStructure.FSMC_TCLRSetupTime = 0x00;
FSMC_NANDInitStructure.FSMC_TARSetupTime = 0x00;
FSMC_NANDInitStructure.FSMC_CommonSpaceTimingStruct = &FSMC_NAND_PCCARDTimingInitStructure;
FSMC_NANDInitStructure.FSMC_AttributeSpaceTimingStruct = &FSMC_NAND_PCCARDTimingInitStructure;

FSMC_NANDInit(&FSMC_NANDInitStructure);

/* FSMC NAND Bank Cmd Test */
FSMC_NANDCmd(FSMC_Bank2_NAND, ENABLE);
}