pxt-calliope/libs/microbit/serial.cpp
2016-09-29 15:20:45 -07:00

72 lines
2.1 KiB
C++

#include "ksbit.h"
enum class SerialPin {
P0 = MICROBIT_ID_IO_P0,
P1 = MICROBIT_ID_IO_P1,
P2 = MICROBIT_ID_IO_P2,
//P8 = MICROBIT_ID_IO_P8,
//P12 = MICROBIT_ID_IO_P12,
//P13 = MICROBIT_ID_IO_P13,
//P14 = MICROBIT_ID_IO_P14,
//P15 = MICROBIT_ID_IO_P15,
//P16 = MICROBIT_ID_IO_P16
};
enum class BaudRate {
//% block=115200
BaudRate115200 = 115200,
//% block=9600
BaudRate9600 = 9600
};
//% weight=2 color=30
namespace serial {
// note that at least one // followed by % is needed per declaration!
/**
* Reads a line of text from the serial port.
*/
//% help=serial/read-line
//% blockId=serial_read_line block="serial read line"
//% weight=20
StringData* readLine() {
return uBit.serial.readUntil(ManagedString("\n")).leakData();
}
/**
* Sends a piece of text through Serial connection.
*/
//% help=serial/write-string
//% weight=87
//% blockId=serial_writestring block="serial write string %text"
void writeString(StringData *text) {
uBit.serial.send(ManagedString(text));
}
/**
* Registers an event to be fired when one of the delimiter is matched
* @param delimiters the characters to match received characters against. eg:"\n"
*/
// help=serial/on-data-received
// weight=19
void onDataReceived(StringData* delimiters, Action body) {
uBit.serial.eventOn(ManagedString(delimiters));
registerWithDal(MICROBIT_ID_SERIAL, MICROBIT_SERIAL_EVT_DELIM_MATCH, body);
}
/**
* Dynamically configuring the serial instance to use pins other than USBTX and USBRX.
* @param tx the new transmission pins
* @param rx the new reception pin
* @param baud the new baud rate. eg: 115200
*/
//% weight=10
//% help=serial/redirect-to
//% blockId=serial_redirect block="serial redirect to|TX %tx|RX %rx|at baud rate %rate"
//% blockExternalInputs=1
void redirect(SerialPin tx, SerialPin rx, BaudRate rate) {
uBit.serial.redirect((PinName)tx, (PinName)rx);
uBit.serial.baud((int)rate);
}
}