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L8 framebuffer

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This commit is contained in:
Romain Goyet
2015-05-11 21:15:09 +02:00
parent 0b6a5935ed
commit 1008a6ce8d
1 changed files with 6 additions and 5 deletions
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11
platform/stm32f429/init_lcd.c
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@@ -180,6 +180,8 @@ static void init_rgb_clocks() {
}
}
extern const void * _framebuffer_start;
static void init_rgb_timings() {
// Configure the Synchronous timings: VSYNC, HSYNC, Vertical and Horizontal
// back porch, active data area and the front porch timings following the
@@ -268,14 +270,13 @@ static void init_rgb_layers() {
LTDC_WVSTPOS(lcd_panel_vsync+lcd_panel_vbp) |
LTDC_WVSPPOS(lcd_panel_vsync+lcd_panel_vbp+lcd_panel_vadr);
LTDC_LPFCR(LTDC_LAYER1) = LTDC_PF_ARGB8888;
LTDC_LPFCR(LTDC_LAYER1) = LTDC_PF_L8;
// long * LTDC_L1CFBAR = (long *)(LCD_TFT_BASE + 0xAC); // Frame buffer address
// *LTDC_L1CFBAR = 0x2000000;
LTDC_LCFBAR(LTDC_LAYER1) = (uint32_t)&_framebuffer_start;
LTDC_LCFBLR(LTDC_LAYER1) =
LTDC_CFBLL(963) | // Number of bytes per lines in the framebuffer. 240 * 4 (RGBA888)
LTDC_CFBP(960); // The doc says "length + 3". Here goes...
LTDC_CFBLL(243) | // Number of bytes per lines in the framebuffer. 240 * 4 (RGBA888). +3, per doc;
LTDC_CFBP(240); // Width of a line in bytes
LTDC_LCFBLNR(LTDC_LAYER1) = LTDC_CFBLNR(320); // Number of lines