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LTDC_BPCR

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This commit is contained in:
Romain Goyet
2015-05-09 18:34:52 +02:00
parent 99ebf95b25
commit 5bbefb89d7
2 changed files with 10 additions and 6 deletions
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14
platform/stm32f429/init_lcd.c
View File

@@ -196,17 +196,19 @@ static void init_rgb_timings() {
/*- HSYNC and VSYNC Width: Horizontal and Vertical Synchronization width configured by
programming a value of HSYNC Width - 1 and VSYNC Width - 1 in the LTDC_SSCR register. */
LTDC_SSCR = LTDC_VSH(lcd_panel_hsync-1) | LTDC_HSW(lcd_panel_vsync-1);
#if 0
LTDC_SSCR =
LTDC_VSH(lcd_panel_vsync-1) |
LTDC_HSW(lcd_panel_hsync-1);
/*– HBP and VBP: Horizontal and Vertical Synchronization back porch width configured by
programming the accumulated value HSYNC Width + HBP - 1 and the accumulated
value VSYNC Width + VBP - 1 in the LTDC_BPCR register. */
long * LTDC_BPCR = (long *)(LCD_TFT_BASE + 0x0C);
set_ltdc_register(LTDC_BPCR,
lcd_panel_hsync+lcd_panel_hbp-1,
lcd_panel_vsync+lcd_panel_vbp-1);
LTDC_BPCR =
LTDC_AVBP(lcd_panel_vsync+lcd_panel_vbp-1) |
LTDC_AHBP(lcd_panel_hsync+lcd_panel_hbp-1);
#if 0
/*– Active Width and Active Height: The Active Width and Active Height are configured by
programming the accumulated value HSYNC Width + HBP + Active Width - 1 and the accumulated
value VSYNC Width + VBP + Active Height - 1 in the LTDC_AWCR register (only up to 1024x768 is supported). */

2
platform/stm32f429/registers/ltdc.h
View File

@@ -24,8 +24,10 @@
#define LOW_BIT_AVBP 0
#define HIGH_BIT_AVBP 10
#define LTDC_AVBP(v) REGISTER_FIELD_VALUE(AVBP, v)
#define LOW_BIT_AHBP 15
#define HIGH_BIT_AHBP 27
#define LTDC_AHBP(v) REGISTER_FIELD_VALUE(AHBP, v)
#if 0
extern LTDC_BPCR_t * LTDC_BPCR;