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Renamed and cleaned up the CST816D_sleep function + implemented the CST816D_hardware_reset function

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Th3maz1ng 2023-02-03 13:37:36 +01:00
parent 90aac63257
commit 1c51fc9710
2 changed files with 21 additions and 12 deletions
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21
src/W800 SDK v1.00.08/app/app_drivers/i2c/CST816D.c
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@ -1,5 +1,6 @@
#include "i2c.h" #include "i2c.h"
#include "wm_gpio.h" #include "wm_gpio.h"
#include "wm_osal.h"
#include "FreeRTOS.h" #include "FreeRTOS.h"
#include "app_log.h" #include "app_log.h"
#include "CST816D.h" #include "CST816D.h"
@ -26,19 +27,19 @@ bool CST816D_read_touch_event(CST816D_Touch_Data_t * const touch_data)
return false; return false;
} }
bool CST816D_set_power_mode(void) void CST816D_hardware_reset(void)
{ {
tls_gpio_cfg(WM_IO_PA_00, WM_GPIO_DIR_OUTPUT, WM_GPIO_ATTR_FLOATING); tls_gpio_cfg(LCD_TOUCH_PANEL_RESET, WM_GPIO_DIR_OUTPUT, WM_GPIO_ATTR_FLOATING);
tls_gpio_write(WM_IO_PA_00, 0); tls_gpio_write(LCD_TOUCH_PANEL_RESET, 0);
tls_os_time_delay(pdMS_TO_TICKS(5)); tls_os_time_delay(pdMS_TO_TICKS(5));
tls_gpio_write(WM_IO_PA_00, 1); tls_gpio_write(LCD_TOUCH_PANEL_RESET, 1);
}
bool CST816D_sleep(void)
{
CST816D_hardware_reset();
tls_os_time_delay(pdMS_TO_TICKS(50)); tls_os_time_delay(pdMS_TO_TICKS(50));
uint8_t data; return i2c_write_reg(CST816D_I2C_ADDR, 0xA5, 0x03);
i2c_read_reg(CST816D_I2C_ADDR, 0xA5, &data);
i2c_write_reg(CST816D_I2C_ADDR, 0xA5, 0x03);
APP_LOG_DEBUG("CST 0xA5 : %u", data);
} }

12
src/W800 SDK v1.00.08/app/app_drivers/i2c/CST816D.h
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@ -57,10 +57,18 @@ typedef struct CST816D_Touch_Data
bool CST816D_read_touch_event(CST816D_Touch_Data_t * const touch_data); bool CST816D_read_touch_event(CST816D_Touch_Data_t * const touch_data);
/** /**
* @brief Issues a hardware reset of the touch panel. * @brief Issues a physical hardware reset of the touch panel IC using the reset pin.
*/ */
void CST816D_hardware_reset(void); void CST816D_hardware_reset(void);
bool CST816D_set_power_mode(void); /**
* @brief Sets the touch panel in sleep mode.
* A call to this function does not seem to have any effect on power consumption even though the touch IC
* acknowledges the command ... strange !
*
* @return true if the IC acknowledged the command
* @return false otherwise
*/
bool CST816D_sleep(void);
#endif //CST816D_H #endif //CST816D_H