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support for usb in redirect (#1452)

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* support for usb in redirect

* regenerated dal.d.ts
This commit is contained in:
Peli de Halleux 2018-10-17 09:50:34 -07:00 committed by GitHub
parent 21677ac79d
commit 5b28d5080a
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2 changed files with 24 additions and 5 deletions
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2
libs/core/enums.d.ts vendored
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@ -519,6 +519,8 @@ declare namespace led {
P14 = 21, // MICROBIT_ID_IO_P14
P15 = 22, // MICROBIT_ID_IO_P15
P16 = 23, // MICROBIT_ID_IO_P16
USB_TX = 1001,
USB_RX = 1002,
}

27
libs/core/serial.cpp
View File

@ -2,6 +2,7 @@
#define MICROBIT_SERIAL_READ_BUFFER_LENGTH 64
// make sure USB_TX and USB_RX don't overlap with other pin ids
enum SerialPin {
P0 = MICROBIT_ID_IO_P0,
P1 = MICROBIT_ID_IO_P1,
@ -11,7 +12,9 @@ enum SerialPin {
P13 = MICROBIT_ID_IO_P13,
P14 = MICROBIT_ID_IO_P14,
P15 = MICROBIT_ID_IO_P15,
P16 = MICROBIT_ID_IO_P16
P16 = MICROBIT_ID_IO_P16,
USB_TX = 1001,
USB_RX = 1002
};
enum BaudRate {
@ -142,6 +145,20 @@ namespace serial {
return buf;
}
bool tryResolvePin(SerialPin p, PinName& name) {
switch(p) {
case SerialPin::USB_TX: name = USBTX; return true;
case SerialPin::USB_RX: name = USBRX; return true;
default:
auto pin = getPin(p);
if (NULL != pin) {
name = pin->name;
return true;
}
}
return false;
}
/**
* Set the serial input and output to use pins instead of the USB connection.
* @param tx the new transmission pin, eg: SerialPin.P0
@ -158,10 +175,10 @@ namespace serial {
//% rx.fieldOptions.tooltips="false"
//% blockGap=8
void redirect(SerialPin tx, SerialPin rx, BaudRate rate) {
MicroBitPin* txp = getPin(tx); if (!txp) return;
MicroBitPin* rxp = getPin(rx); if (!rxp) return;
uBit.serial.redirect(txp->name, rxp->name);
PinName txn;
PinName rxn;
if (tryResolvePin(tx, txn) && tryResolvePin(rx, rxn))
uBit.serial.redirect(txn, rxn);
uBit.serial.baud((int)rate);
}