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working on the LTDC driver (not done yet and also hacky code)

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This commit is contained in:
Joel Bodenmann 2015-07-10 14:50:12 +02:00
parent 6af2d41ea3
commit 5a1f527fcf
2 changed files with 6 additions and 4 deletions
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8
boards/base/STM32F746-Discovery/board_STM32LTDC.h
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@ -12,6 +12,8 @@
#include "stm32f746g_discovery_sdram.h" #include "stm32f746g_discovery_sdram.h"
#include <string.h> #include <string.h>
#include "RGB565_480x272.h"
static const ltdcConfig driverCfg = { static const ltdcConfig driverCfg = {
480, 270, // Width, Height (pixels) 480, 270, // Width, Height (pixels)
41, 10, // Horizontal, Vertical sync (pixels) 41, 10, // Horizontal, Vertical sync (pixels)
@ -21,7 +23,7 @@ static const ltdcConfig driverCfg = {
0x000000, // Clear color (RGB888) 0x000000, // Clear color (RGB888)
{ // Background layer config { // Background layer config
(LLDCOLOR_TYPE *)SDRAM_BANK_ADDR, // Frame buffer address (LLDCOLOR_TYPE *)RGB565_480x272, // Frame buffer address
480, 270, // Width, Height (pixels) 480, 270, // Width, Height (pixels)
480 * LTDC_PIXELBYTES, // Line pitch (bytes) 480 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format LTDC_PIXELFORMAT, // Pixel format
@ -60,14 +62,14 @@ static inline void init_board(GDisplay *g) {
/* PLLSAI activation.*/ /* PLLSAI activation.*/
RCC->PLLSAICFGR = (STM32_PLLSAIN_VALUE << 6) | (STM32_PLLSAIR_VALUE << 28) | (STM32_PLLSAIQ_VALUE << 24); RCC->PLLSAICFGR = (STM32_PLLSAIN_VALUE << 6) | (STM32_PLLSAIR_VALUE << 28) | (STM32_PLLSAIQ_VALUE << 24);
RCC->DCKCFGR = (RCC->DCKCFGR & ~RCC_DCKCFGR_PLLSAIDIVR) | STM32_PLLSAIR_POST; RCC->DCKCFGR1 = (RCC->DCKCFGR1 & ~RCC_DCKCFGR1_PLLSAIDIVR) | STM32_PLLSAIR_POST;
RCC->CR |= RCC_CR_PLLSAION; RCC->CR |= RCC_CR_PLLSAION;
// Initialise the SDRAM // Initialise the SDRAM
SDRAM_Init(); SDRAM_Init();
// Clear the SDRAM // Clear the SDRAM
memset((void *)SDRAM_BANK_ADDR, 0, 0x400000); //memset((void *)SDRAM_BANK_ADDR, 0, 0x400000);
break; break;
} }

2
drivers/gdisp/STM32LTDC/gdisp_lld_STM32LTDC.c
View file

@ -153,7 +153,7 @@ static void LTDC_Init(void)
RCC->APB2RSTR = 0; RCC->APB2RSTR = 0;
/* Enable the LTDC clock.*/ /* Enable the LTDC clock.*/
RCC->DCKCFGR = (RCC->DCKCFGR & ~RCC_DCKCFGR_PLLSAIDIVR) | (1 << 16); /* /4 */ RCC->DCKCFGR1 = (RCC->DCKCFGR1 & ~RCC_DCKCFGR1_PLLSAIDIVR) | (1 << 16); /* /4 */
// Enable the module // Enable the module
RCC->APB2ENR |= RCC_APB2ENR_LTDCEN; RCC->APB2ENR |= RCC_APB2ENR_LTDCEN;