Posted on September 21, 2017 at 22:26DAHMEN.IMEN
‌
Hello,
I'm trying to use TFT display with ILI9341 16 bit interface with STM32F427 via FMC. I based my code looking the samples gerates for CubeMX.
I am using FreeRTOS and STemWin to print the 'Hello Word' message, but it does not work, in this case I have not found many examples of how to use the FMC.
I created the file stm32f427xx_eval.c with the routines that StemWim will use to write to the lcd.
typedef struct
{
__IO uint16_t REG; /* Read Register */
__IO uint16_t RAM; /* Read RAM */
}LCD_CONTROLLER_TypeDef;
&sharpdefine FMC_BANK1_SRAM3_BASE ((uint32_t)(0x60000000 | 0x08000000))
/* Selecionao banco que sera usado*/
&sharpdefine FMC_BANK3 ((LCD_CONTROLLER_TypeDef *) FMC_BANK1_SRAM3_BASE)
void BSP_LCD_Init(void)
{
/* Backlight control signal assertion */
LCD_BACKLIGHT_ON();
/* Apply hardware reset according to procedure indicated in FRD154BP2901 documentation */
LCD_RESET();
ili9341_Init();
}
/*******************************************************************************
BUS OPERATIONS
*******************************************************************************/
/**
* @brief Writes register value.
* @param Data: Data to be written
*/
void FSMC_BANK3_WriteData(uint16_t Data)
{
/* Write 16-bit Reg */
FMC_BANK3->RAM = Data;
}
/**
* @brief Writes register address.
* @param Reg: Register to be written
*/
void FSMC_BANK3_WriteReg(uint8_t Reg)
{
/* Write 16-bit Index, then write register */
FMC_BANK3->REG = Reg;
}
/**
* @brief Reads register value.
* @retval Read value
*/
uint16_t FSMC_BANK3_ReadData(uint16_t xRegValue, uint8_t xReadSize)
{
return (FMC_BANK3->RAM);
}
/********************************* LINK LCD ***********************************/
/**
* @brief Initializes LCD low level.
*/
void LCD_IO_Init(void)
{
if(Is_LCD_IO_Initialized == 0)
{
Is_LCD_IO_Initialized = 1;
}
}
/**
* @brief Writes data on LCD data register.
* @param Data: Data to be written
*/
void LCD_IO_WriteData(uint16_t Data)
{
/* Write 16-bit Reg */
FSMC_BANK3_WriteData(Data);
}
/**
* @brief Write register value.
* @param pData Pointer on the register value
* @param Size Size of byte to transmit to the register
*/
void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size)
{
uint32_t counter;
uint16_t *ptr = (uint16_t *) pData;
for (counter = 0; counter < Size; counter+=2)
{
/* Write 16-bit Reg */
FSMC_BANK3_WriteData(*ptr);
ptr++;
}
}
/**
* @brief Writes register on LCD register.
* @param Reg: Register to be written
*/
void LCD_IO_WriteReg(uint8_t Reg)
{
/* Write 16-bit Index, then Write Reg */
FSMC_BANK3_WriteReg(Reg);
}
/**
* @brief Reads data from LCD data register.
* @param Reg: Register to be read
* @retval Read data.
*/
uint32_t LCD_IO_ReadData(uint16_t RegValue, uint8_t ReadSize)
{
//FSMC_BANK3_WriteReg(Reg);
/* Read 16-bit Reg */
return FSMC_BANK3_ReadData(RegValue, ReadSize);
}
My FMC is configured as follows:
/* FMC initialization function */
static void MX_FMC_Init(void)
{
FMC_NORSRAM_TimingTypeDef Timing;
/** Perform the SRAM3 memory initialization sequence
*/
hsram3.Instance = FMC_NORSRAM_DEVICE;
hsram3.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
/* hsram3.Init */
hsram3.Init.NSBank = FMC_NORSRAM_BANK3;
hsram3.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
hsram3.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
hsram3.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16;
hsram3.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
hsram3.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
hsram3.Init.WrapMode = FMC_WRAP_MODE_DISABLE;
hsram3.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
hsram3.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
hsram3.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
hsram3.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
hsram3.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_DISABLE;
hsram3.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
hsram3.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
hsram3.Init.PageSize = FMC_PAGE_SIZE_NONE;
/* Timing */
Timing.AddressSetupTime = 15;
Timing.AddressHoldTime = 15;
Timing.DataSetupTime = 255;
Timing.BusTurnAroundDuration = 15;
Timing.CLKDivision = 16;
Timing.DataLatency = 17;
Timing.AccessMode = FMC_ACCESS_MODE_A;
/* ExtTiming */
if (HAL_SRAM_Init(&hsram3, &Timing, NULL) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
Has anyone ever had the same problem?
Thanks,
Jorge
#fmc #stemwin
I shared all the project in 