Ross Squires / SoftSerial

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of SoftSerial by Erik -

SoftSerial.cpp@12:55d78fef0327, 2017-05-09 (annotated)

Committer:
rsquires
Date:
Tue May 09 18:36:31 2017 +0000
Revision:
12:55d78fef0327
Parent:
11:a0029614de72 
Fixed detach

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sissors 0:8edaa7abe724 1 #include "SoftSerial.h"
Sissors 0:8edaa7abe724 2
Sissors 5:acfd0329f648 3 SoftSerial::SoftSerial(PinName TX, PinName RX, const char* name) {
Sissors 0:8edaa7abe724 4 tx_en = rx_en = false;
SonyPony 11:a0029614de72 5 read_buffer = 0;
Sissors 0:8edaa7abe724 6 if (TX != NC) {
Sissors 0:8edaa7abe724 7 tx = new DigitalOut(TX);
Sissors 0:8edaa7abe724 8 tx_en = true;
Sissors 0:8edaa7abe724 9 tx->write(1);
Sissors 0:8edaa7abe724 10 tx_bit = -1;
Sissors 6:517082212c00 11 txticker.attach(this, &SoftSerial::tx_handler);
Sissors 0:8edaa7abe724 12 }
Sissors 0:8edaa7abe724 13 if (RX != NC) {
Sissors 0:8edaa7abe724 14 rx = new InterruptIn(RX);
Sissors 0:8edaa7abe724 15 rx_en = true;
Sissors 1:f8b4b764ace7 16 out_valid = false;
Sissors 6:517082212c00 17 rxticker.attach(this, &SoftSerial::rx_handler);
Sissors 0:8edaa7abe724 18 rx->fall(this, &SoftSerial::rx_gpio_irq_handler);
Sissors 0:8edaa7abe724 19 }
Sissors 0:8edaa7abe724 20
Sissors 0:8edaa7abe724 21 baud(9600);
Sissors 0:8edaa7abe724 22 format();
Sissors 0:8edaa7abe724 23 }
Sissors 0:8edaa7abe724 24
Sissors 9:4e4617c4a441 25 SoftSerial::~SoftSerial() {
rsquires 12:55d78fef0327 26 if (tx_en) {
rsquires 12:55d78fef0327 27 txticker.detach();
Sissors 9:4e4617c4a441 28 delete(tx);
rsquires 12:55d78fef0327 29 }
rsquires 12:55d78fef0327 30 if (rx_en) {
rsquires 12:55d78fef0327 31 rxticker.detach();
Sissors 9:4e4617c4a441 32 delete(rx);
rsquires 12:55d78fef0327 33 }
Sissors 9:4e4617c4a441 34 }
Sissors 9:4e4617c4a441 35
Sissors 0:8edaa7abe724 36 void SoftSerial::baud(int baudrate) {
Sissors 0:8edaa7abe724 37 bit_period = 1000000 / baudrate;
Sissors 0:8edaa7abe724 38 }
Sissors 0:8edaa7abe724 39
Sissors 0:8edaa7abe724 40 void SoftSerial::format(int bits, Parity parity, int stop_bits) {
Sissors 0:8edaa7abe724 41 _bits = bits;
Sissors 0:8edaa7abe724 42 _parity = parity;
Sissors 0:8edaa7abe724 43 _stop_bits = stop_bits;
Sissors 2:9e01a38606b4 44 _total_bits = 1 + _bits + _stop_bits + (bool)_parity;
Sissors 0:8edaa7abe724 45 }