Milen Pavlov / XRange_mbed_src

Mbed SDK for XRange SX1272 LoRa module

Dependents:   XRangePingPong XRange-LoRaWAN-lmic-app lora-transceiver

SX1272 LoRa RF module

https://www.netblocks.eu/xrange-sx1272-lora-datasheet/

common/SerialBase.cpp@339:ac6f3fd999f3, 2016-01-07 (annotated)

Committer:
netblocks
Date:
Thu Jan 07 13:01:25 2016 +0000
Revision:
339:ac6f3fd999f3
Parent:
336:1e18a06a987b 
HSE_VALUE set for XTAL 16Mhz

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 336:1e18a06a987b 1 /* mbed Microcontroller Library
dudmuck 336:1e18a06a987b 2 * Copyright (c) 2006-2013 ARM Limited
dudmuck 336:1e18a06a987b 3 *
dudmuck 336:1e18a06a987b 4 * Licensed under the Apache License, Version 2.0 (the "License");
dudmuck 336:1e18a06a987b 5 * you may not use this file except in compliance with the License.
dudmuck 336:1e18a06a987b 6 * You may obtain a copy of the License at
dudmuck 336:1e18a06a987b 7 *
dudmuck 336:1e18a06a987b 8 * http://www.apache.org/licenses/LICENSE-2.0
dudmuck 336:1e18a06a987b 9 *
dudmuck 336:1e18a06a987b 10 * Unless required by applicable law or agreed to in writing, software
dudmuck 336:1e18a06a987b 11 * distributed under the License is distributed on an "AS IS" BASIS,
dudmuck 336:1e18a06a987b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dudmuck 336:1e18a06a987b 13 * See the License for the specific language governing permissions and
dudmuck 336:1e18a06a987b 14 * limitations under the License.
dudmuck 336:1e18a06a987b 15 */
dudmuck 336:1e18a06a987b 16 #include "SerialBase.h"
dudmuck 336:1e18a06a987b 17 #include "wait_api.h"
dudmuck 336:1e18a06a987b 18
dudmuck 336:1e18a06a987b 19 #if DEVICE_SERIAL
dudmuck 336:1e18a06a987b 20
dudmuck 336:1e18a06a987b 21 namespace mbed {
dudmuck 336:1e18a06a987b 22
dudmuck 336:1e18a06a987b 23 SerialBase::SerialBase(PinName tx, PinName rx) : _serial(), _baud(9600) {
dudmuck 336:1e18a06a987b 24 serial_init(&_serial, tx, rx);
dudmuck 336:1e18a06a987b 25 serial_irq_handler(&_serial, SerialBase::_irq_handler, (uint32_t)this);
dudmuck 336:1e18a06a987b 26 }
dudmuck 336:1e18a06a987b 27
dudmuck 336:1e18a06a987b 28 void SerialBase::baud(int baudrate) {
dudmuck 336:1e18a06a987b 29 serial_baud(&_serial, baudrate);
dudmuck 336:1e18a06a987b 30 _baud = baudrate;
dudmuck 336:1e18a06a987b 31 }
dudmuck 336:1e18a06a987b 32
dudmuck 336:1e18a06a987b 33 void SerialBase::format(int bits, Parity parity, int stop_bits) {
dudmuck 336:1e18a06a987b 34 serial_format(&_serial, bits, (SerialParity)parity, stop_bits);
dudmuck 336:1e18a06a987b 35 }
dudmuck 336:1e18a06a987b 36
dudmuck 336:1e18a06a987b 37 int SerialBase::readable() {
dudmuck 336:1e18a06a987b 38 return serial_readable(&_serial);
dudmuck 336:1e18a06a987b 39 }
dudmuck 336:1e18a06a987b 40
dudmuck 336:1e18a06a987b 41
dudmuck 336:1e18a06a987b 42 int SerialBase::writeable() {
dudmuck 336:1e18a06a987b 43 return serial_writable(&_serial);
dudmuck 336:1e18a06a987b 44 }
dudmuck 336:1e18a06a987b 45
dudmuck 336:1e18a06a987b 46 void SerialBase::attach(void (*fptr)(void), IrqType type) {
dudmuck 336:1e18a06a987b 47 if (fptr) {
dudmuck 336:1e18a06a987b 48 _irq[type].attach(fptr);
dudmuck 336:1e18a06a987b 49 serial_irq_set(&_serial, (SerialIrq)type, 1);
dudmuck 336:1e18a06a987b 50 } else {
dudmuck 336:1e18a06a987b 51 serial_irq_set(&_serial, (SerialIrq)type, 0);
dudmuck 336:1e18a06a987b 52 }
dudmuck 336:1e18a06a987b 53 }
dudmuck 336:1e18a06a987b 54
dudmuck 336:1e18a06a987b 55 void SerialBase::_irq_handler(uint32_t id, SerialIrq irq_type) {
dudmuck 336:1e18a06a987b 56 SerialBase *handler = (SerialBase*)id;
dudmuck 336:1e18a06a987b 57 handler->_irq[irq_type].call();
dudmuck 336:1e18a06a987b 58 }
dudmuck 336:1e18a06a987b 59
dudmuck 336:1e18a06a987b 60 int SerialBase::_base_getc() {
dudmuck 336:1e18a06a987b 61 return serial_getc(&_serial);
dudmuck 336:1e18a06a987b 62 }
dudmuck 336:1e18a06a987b 63
dudmuck 336:1e18a06a987b 64 int SerialBase::_base_putc(int c) {
dudmuck 336:1e18a06a987b 65 serial_putc(&_serial, c);
dudmuck 336:1e18a06a987b 66 return c;
dudmuck 336:1e18a06a987b 67 }
dudmuck 336:1e18a06a987b 68
dudmuck 336:1e18a06a987b 69 void SerialBase::send_break() {
dudmuck 336:1e18a06a987b 70 // Wait for 1.5 frames before clearing the break condition
dudmuck 336:1e18a06a987b 71 // This will have different effects on our platforms, but should
dudmuck 336:1e18a06a987b 72 // ensure that we keep the break active for at least one frame.
dudmuck 336:1e18a06a987b 73 // We consider a full frame (1 start bit + 8 data bits bits +
dudmuck 336:1e18a06a987b 74 // 1 parity bit + 2 stop bits = 12 bits) for computation.
dudmuck 336:1e18a06a987b 75 // One bit time (in us) = 1000000/_baud
dudmuck 336:1e18a06a987b 76 // Twelve bits: 12000000/baud delay
dudmuck 336:1e18a06a987b 77 // 1.5 frames: 18000000/baud delay
dudmuck 336:1e18a06a987b 78 serial_break_set(&_serial);
dudmuck 336:1e18a06a987b 79 wait_us(18000000/_baud);
dudmuck 336:1e18a06a987b 80 serial_break_clear(&_serial);
dudmuck 336:1e18a06a987b 81 }
dudmuck 336:1e18a06a987b 82
dudmuck 336:1e18a06a987b 83 #if DEVICE_SERIAL_FC
dudmuck 336:1e18a06a987b 84 void SerialBase::set_flow_control(Flow type, PinName flow1, PinName flow2) {
dudmuck 336:1e18a06a987b 85 FlowControl flow_type = (FlowControl)type;
dudmuck 336:1e18a06a987b 86 switch(type) {
dudmuck 336:1e18a06a987b 87 case RTS:
dudmuck 336:1e18a06a987b 88 serial_set_flow_control(&_serial, flow_type, flow1, NC);
dudmuck 336:1e18a06a987b 89 break;
dudmuck 336:1e18a06a987b 90
dudmuck 336:1e18a06a987b 91 case CTS:
dudmuck 336:1e18a06a987b 92 serial_set_flow_control(&_serial, flow_type, NC, flow1);
dudmuck 336:1e18a06a987b 93 break;
dudmuck 336:1e18a06a987b 94
dudmuck 336:1e18a06a987b 95 case RTSCTS:
dudmuck 336:1e18a06a987b 96 case Disabled:
dudmuck 336:1e18a06a987b 97 serial_set_flow_control(&_serial, flow_type, flow1, flow2);
dudmuck 336:1e18a06a987b 98 break;
dudmuck 336:1e18a06a987b 99
dudmuck 336:1e18a06a987b 100 default:
dudmuck 336:1e18a06a987b 101 break;
dudmuck 336:1e18a06a987b 102 }
dudmuck 336:1e18a06a987b 103 }
dudmuck 336:1e18a06a987b 104 #endif
dudmuck 336:1e18a06a987b 105
dudmuck 336:1e18a06a987b 106 } // namespace mbed
dudmuck 336:1e18a06a987b 107
dudmuck 336:1e18a06a987b 108 #endif