MTK GPIO如下减去0x80屏才能复位并正常显示,而有的PIN确减了0x80,这是什么意思?
时间:10-02
整理:3721RD
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const char GPIO_LCM_rst_pin = GPIO_PORT_41;
extern const char gpio_lcm_rst_pin;
kal_uint32 reset_pin = gpio_lcm_rst_pin -0x80;//为什此处GPIO要减去0x80屏才能复位并正常显示,而有的PIN确减了0x80,这是什么意思?
LCD_reset_hnd = DclGPIO_Open(DCL_GPIO, reset_pin);
extern const char gpio_lcm_rst_pin;
kal_uint32 reset_pin = gpio_lcm_rst_pin -0x80;//为什此处GPIO要减去0x80屏才能复位并正常显示,而有的PIN确减了0x80,这是什么意思?
LCD_reset_hnd = DclGPIO_Open(DCL_GPIO, reset_pin);