53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include "Arduino.h"
|
|
|
|
void usbHostPower(UsbHostPower_t mode) {
|
|
static UsbHostPower_t m = USB_HOST_POWER_OFF;
|
|
if (m == mode) {
|
|
return;
|
|
}
|
|
if (mode == USB_HOST_POWER_OFF) {
|
|
digitalWrite(LIMIT_EN, LOW);
|
|
if (m == USB_HOST_POWER_VBUS) {
|
|
digitalWrite(DEV_VBUS_EN, LOW);
|
|
} else if (m == USB_HOST_POWER_BAT) {
|
|
digitalWrite(BOOST_EN, LOW);
|
|
}
|
|
} else if (mode == USB_HOST_POWER_VBUS) {
|
|
if (m == USB_HOST_POWER_BAT) {
|
|
digitalWrite(BOOST_EN, LOW);
|
|
}
|
|
digitalWrite(DEV_VBUS_EN, HIGH);
|
|
} else if (mode == USB_HOST_POWER_BAT) {
|
|
if (m == USB_HOST_POWER_VBUS) {
|
|
digitalWrite(DEV_VBUS_EN, LOW);
|
|
}
|
|
digitalWrite(BOOST_EN, HIGH);
|
|
}
|
|
if (mode != USB_HOST_POWER_OFF) {
|
|
digitalWrite(LIMIT_EN, HIGH);
|
|
}
|
|
m = mode;
|
|
}
|
|
|
|
void usbHostEnable(bool enable) {
|
|
digitalWrite(USB_HOST_EN, enable);
|
|
}
|
|
|
|
extern "C" void initVariant(void) {
|
|
// Route USB to Device Side
|
|
pinMode(BOOST_EN, OUTPUT);
|
|
digitalWrite(BOOST_EN, LOW);
|
|
pinMode(LIMIT_EN, OUTPUT);
|
|
digitalWrite(LIMIT_EN, LOW);
|
|
pinMode(DEV_VBUS_EN, OUTPUT);
|
|
digitalWrite(DEV_VBUS_EN, LOW);
|
|
pinMode(USB_HOST_EN, OUTPUT);
|
|
digitalWrite(USB_HOST_EN, LOW);
|
|
|
|
// Turn Off LCD
|
|
pinMode(LCD_RST, OUTPUT);
|
|
digitalWrite(LCD_RST, LOW);
|
|
pinMode(LCD_BL, OUTPUT);
|
|
digitalWrite(LCD_BL, LOW);
|
|
}
|