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