Posted on June 24, 2016 at 16:28
Hi there, I have some troubles with initializing my LCD with a HX8347-Controller. I have my Environment and all Settings generated with the actual Cube. I use FreeRTOS on a STM32F4 The LCD is with FMC on BANK1, NOR/.../LCD 2 connected and configered. I added also the additional Reset-Pin. The Background-LED is turned on, so that I should see everything. The Clocking is active.
Because of wish to later use emWin, the Configs (Templates) for STemWin are used. Mostly all of the simple Stuff is taken from the Templates and addapted. The CRC for emWin is also active.
in the GUIConf.c I changed
#define GUI_NUMBYTES XSIZE_PHYS * YSIZE_PHYS * 2
in LCDConf.h I added
#define XSIZE_PHYS 240 // To be adapted to x-screen size
#define YSIZE_PHYS 320 // To be adapted to y-screen size
In GUIConf.h I reduced to 1 Layer and removed Support for Touch+Mouse.
And now the real Thing, which should be also there in a similar Way without emWin:
in the LCDConf_FlexColor.c I have (shortened) following things:
typedef
struct
{
__IO uint16_t REG;
__IO uint16_t RAM;
}LCD_CONTROLLER_TypeDef;
#define FMC_BANK1_BASE ((uint32_t)(0x60000000 | 0x04000000)) // BANK1_BASE | Offset for NOR / PSRAM 2 (64MB Offset)
#define FMC_BANK1 ((LCD_CONTROLLER_TypeDef *) FMC_BANK1_BASE)
typedef
enum
{
eLCD_DISPLAY_MODE_CONTROL = 0x01U,
eLCD_COLUMN_ADDRESS_START_2 = 0x02U,
eLCD_COLUMN_ADDRESS_START_1 = 0x03U,
...
eLCD_TEST_1 = 0x96U,
} TE_LcdRegister;
static
void
LcdWriteReg(U16 Reg) {
FMC_BANK1->REG = Reg;
// write Data to [D0:D7]
}
static
void
LcdWriteData(U16 Data) {
FMC_BANK1->RAM = Data;
// write Data to [D0:D15]
}
static
void
LcdWriteRegAndData(U16 Reg, U16 Data){
LcdWriteReg(Reg);
LcdWriteData(Data);
}
static
void
LcdReadDataMultiple(U16* pData,
int
NumItems) {
for
(uint32_t ui=0; ui<NumItems; ui++) {
*pData = FMC_BANK1->RAM;
// read Data from [D0:D15]
}
}
void
LCD_X_Config(
void
) {
...
pDevice = GUI_DEVICE_CreateAndLink(GUIDRV_FLEXCOLOR, GUICC_565, 0, 0);
...
GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66712, GUIDRV_FLEXCOLOR_M16C0B16);
// HX8347 with 16bpp, no cache, 16 bit bus
}
int
LCD_X_DisplayDriver(unsigned LayerIndex, unsigned Cmd,
void
* pData) {
...
switch
(Cmd) {
case
LCD_X_INITCONTROLLER:
LCD_PowerOn();
...
}
static
void
LCD_PowerOn(
void
){
// Init is done on Base of File ''COM24H2N57XLC_CPU_Interface_Oct2010_CA10pdf'' site 20
HAL_GPIO_WritePin(TFT2_RESETB_GPIO_Port, TFT2_RESETB_Pin, GPIO_PIN_SET);
osDelay(1);
HAL_GPIO_WritePin(TFT2_RESETB_GPIO_Port, TFT2_RESETB_Pin, GPIO_PIN_RESET);
osDelay(1);
// 10µs would be enough, but don't have µs-Delay
HAL_GPIO_WritePin(TFT2_RESETB_GPIO_Port, TFT2_RESETB_Pin, GPIO_PIN_SET);
osDelay(120);
// Test1 setting
LcdWriteRegAndData(eLCD_TEST_1, 0x01);
// OSC Control setting
LcdWriteRegAndData(eLCD_OSC_CONTROL_1, 0x87);
osDelay(10);
...
}
So everything is pretty similar to different Examples I found. With Debuging I go trough all Functions as expected. But at the End there is nothing visible on my Display. Anyone with Ideas or Tipps?
#stm32f3-stm32f4-emwin-fmc-hx8347
