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🚑️ Fix BIQU BX touch freeze (#24383)

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This commit is contained in:
Victor Oliveira 2022-06-22 05:33:03 -03:00 committed by Scott Lahteine
parent 831e1b5ecf
commit 253e35e066
2 changed files with 11 additions and 7 deletions
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16
Marlin/src/HAL/STM32/tft/gt911.cpp
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@ -159,24 +159,28 @@ void GT911::read_reg(uint16_t reg, uint8_t reg_len, uint8_t* r_data, uint8_t r_l
void GT911::Init() { void GT911::Init() {
OUT_WRITE(GT911_RST_PIN, LOW); OUT_WRITE(GT911_RST_PIN, LOW);
OUT_WRITE(GT911_INT_PIN, LOW); OUT_WRITE(GT911_INT_PIN, LOW);
delay(20); delay(11);
WRITE(GT911_INT_PIN, HIGH);
delayMicroseconds(110);
WRITE(GT911_RST_PIN, HIGH); WRITE(GT911_RST_PIN, HIGH);
delay(6);
WRITE(GT911_INT_PIN, LOW);
delay(55);
SET_INPUT(GT911_INT_PIN); SET_INPUT(GT911_INT_PIN);
sw_iic.init(); sw_iic.init();
uint8_t clear_reg = 0x0000; uint8_t clear_reg = 0x00;
write_reg(0x814E, 2, &clear_reg, 2); // Reset to 0 for start write_reg(0x814E, 2, &clear_reg, 1); // Reset to 0 for start
} }
bool GT911::getFirstTouchPoint(int16_t *x, int16_t *y) { bool GT911::getFirstTouchPoint(int16_t *x, int16_t *y) {
read_reg(0x814E, 2, &reg.REG.status, 1); read_reg(0x814E, 2, &reg.REG.status, 1);
if (reg.REG.status & 0x80) { if (reg.REG.status >= 0x80 && reg.REG.status <= 0x85) {
read_reg(0x8150, 2, reg.map + 2, 38);
uint8_t clear_reg = 0x00; uint8_t clear_reg = 0x00;
write_reg(0x814E, 2, &clear_reg, 1); // Reset to 0 for start write_reg(0x814E, 2, &clear_reg, 1); // Reset to 0 for start
read_reg(0x8150, 2, reg.map + 2, 8 * (reg.REG.status & 0x0F));
// First touch point // First touch point
*x = ((reg.REG.point[0].xh & 0x0F) << 8) | reg.REG.point[0].xl; *x = ((reg.REG.point[0].xh & 0x0F) << 8) | reg.REG.point[0].xl;
*y = ((reg.REG.point[0].yh & 0x0F) << 8) | reg.REG.point[0].yl; *y = ((reg.REG.point[0].yh & 0x0F) << 8) | reg.REG.point[0].yl;

2
Marlin/src/HAL/STM32/tft/gt911.h
View File

@ -23,7 +23,7 @@
#include "../../../inc/MarlinConfig.h" #include "../../../inc/MarlinConfig.h"
#define GT911_SLAVE_ADDRESS 0xBA #define GT911_SLAVE_ADDRESS 0x28
#if !PIN_EXISTS(GT911_RST) #if !PIN_EXISTS(GT911_RST)
#error "GT911_RST_PIN is not defined." #error "GT911_RST_PIN is not defined."