Posted on December 27, 2014 at 12:10CubeMX (CubeMX v4.3.1, STM32Cube V1.0) generated pinout for STM32F429 LTDC is
/** LTDC GPIO Configuration
PE4 ------> LTDC_B0
PE5 ------> LTDC_G0
PE6 ------> LTDC_G1
PI9 ------> LTDC_VSYNC
PI10 ------> LTDC_HSYNC
PF10 ------> LTDC_DE
PH2 ------> LTDC_R0
PH3 ------> LTDC_R1
PA3 ------> LTDC_B5
PA6 ------> LTDC_G2
PB0 ------> LTDC_R3
PB1 ------> LTDC_R6
PB10 ------> LTDC_G4
PB11 ------> LTDC_G5
PH8 ------> LTDC_R2
PH10 ------> LTDC_R4
PH11 ------> LTDC_R5
PG6 ------> LTDC_R7
PG7 ------> LTDC_CLK
PC7 ------> LTDC_G6
PH14 ------> LTDC_G3
PI2 ------> LTDC_G7
PG10 ------> LTDC_B2
PG11 ------> LTDC_B3
PG12 ------> LTDC_B1
PB8 ------> LTDC_B6
PB9 ------> LTDC_B7
PI4 ------> LTDC_B4
*/
Initialization code in HAL_LTDC_MspInit() is like
GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_10|GPIO_PIN_11 |GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
All LTDC Alternate Functions are initialized to AF14.
Most of LTDC pins are really Alternate Function 14,
but e.g.
PB0=LCD_R3 is at AF9 instead of AF14. AF14 is not valid for PB0 and PB1 (based on
page74 of DocID024030 Rev 4)
It is a bug in DocID024030 Rev 4 or in CubeMX.
