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Code Issues Releases Wiki Activity

display: tearing effect cleanup

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mcudev 2017-10-14 22:15:34 -04:00 committed by Pavol Rusnak
parent 26852e5aee
commit e2b66436df
3 changed files with 7 additions and 14 deletions
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4
Makefile
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@ -21,10 +21,6 @@ CFLAGS += -DDISPLAY_ILI9341V=1
CFLAGS += -DDISPLAY_ST7789V=0
endif
ifeq ($(DISPLAY_VSYNC), 0)
CFLAGS += -DDISPLAY_VSYNC=0
endif
PRODUCTION ?= 0
STLINK_VER ?= v2

4
docs/hardware.md
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@ -24,7 +24,7 @@ TODO
* 1 x USB Cable Type A Plug/Male to Type Micro-B Plug/Male
* 1 x [ER-TFTM028-4 Display + Capacitive Touch Panel Module](http://www.ebay.com/itm/302049581340) (Note: specify 40-Pin Header, 8080 8-bit Parallel, VDD=3.3V, Capacitive Touch Panel)
* 1 x [microSD Board](https://www.waveshare.com/product/modules/storage/sd-tf-storage/micro-sd-storage-board.htm)
* 27 x Female to female jumper wires with 0.1" header contacts
* 28 x Female to female jumper wires with 0.1" header contacts
#### Display
@ -38,7 +38,7 @@ TODO
|Description|MCU Pin|Notes|
|-----------|-------|-----|
|LCD_RST|PC14|display module pin 21|
|LCD_FMARK|PD12|tearing effect input|
|LCD_FMARK|PD12|tearing effect input; display module pin 22|
|LCD_PWM|PA7|backlight control (brightness); display module pin 29|
|LCD_CS|PD7|display module pin 23|
|LCD_RS|PD11|register select aka command/data; display module pin 24|

13
embed/extmod/modtrezorui/display-stm32.h
View File

@ -15,10 +15,6 @@
#define DISPLAY_ST7789V 1
#endif
#ifndef DISPLAY_VSYNC
#define DISPLAY_VSYNC 1
#endif
// FSMC/FMC Bank 1 - NOR/PSRAM 1
#define DISPLAY_MEMORY_BASE 0x60000000
#define DISPLAY_MEMORY_PIN 16
@ -172,10 +168,11 @@ int display_init(void) {
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_SET);
// LCD_FMARK/PD12 (tearing effect)
GPIO_InitStructure.Pin = GPIO_PIN_12;
GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = 0;
GPIO_InitStructure.Pin = GPIO_PIN_12;
HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
@ -242,6 +239,7 @@ int display_init(void) {
CMD(0xC1); DATA(0x12); // power control SAP[2:0] BT[3:0]
CMD(0xC5); DATA(0x60); DATA(0x44); // vcm control 1
CMD(0xC7); DATA(0x8A); // vcm control 2
CMD(0x35); DATA(0x00); // TEON: Tearing Effect Line On
CMD(0x3A); DATA(0x55); // memory access control (16-bit 565)
CMD(0xB1); DATA(0x00); DATA(0x18); // framerate
CMD(0xB6); DATA(0x0A); DATA(0xA2); // display function control
@ -299,12 +297,11 @@ static void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y
display_set_window_raw(x0, y0, x1, y1);
}
void display_refresh(void) {
#if DISPLAY_VSYNC
void display_refresh(void)
{
// synchronize with the panel synchronization signal in order to avoid visual tearing effects
while (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_12)) { }
while (GPIO_PIN_SET == HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_12)) { }
#endif
}
void display_save(const char *filename)