- fix F411 F334 systeminit when HSI used - portinout always read IDR regardless of port direction
Fork of mbed-src by
common/Serial.cpp
- Committer:
- bogdanm
- Date:
- 2013-08-07
- Revision:
- 15:4892fe388435
- Parent:
- 13:0645d8841f51
- Child:
- 36:ab3ee77451e7
File content as of revision 15:4892fe388435:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "Serial.h" #include "wait_api.h" #if DEVICE_SERIAL namespace mbed { Serial::Serial(PinName tx, PinName rx, const char *name) : Stream(name) { serial_init(&_serial, tx, rx); _baud = 9600; serial_irq_handler(&_serial, Serial::_irq_handler, (uint32_t)this); } void Serial::baud(int baudrate) { serial_baud(&_serial, baudrate); _baud = baudrate; } void Serial::format(int bits, Parity parity, int stop_bits) { serial_format(&_serial, bits, (SerialParity)parity, stop_bits); } int Serial::readable() { return serial_readable(&_serial); } int Serial::writeable() { return serial_writable(&_serial); } pFunctionPointer_t Serial::attach(void (*fptr)(void), IrqType type) { pFunctionPointer_t pf = NULL; _irq[type].clear(); if (fptr) { pf = _irq[type].add(fptr); serial_irq_set(&_serial, (SerialIrq)type, 1); } else { serial_irq_set(&_serial, (SerialIrq)type, 0); } return pf; } pFunctionPointer_t Serial::add_handler_helper(void (*fptr)(void), IrqType type, bool front) { if (NULL == fptr) return NULL; pFunctionPointer_t pf = front ? _irq[type].add_front(fptr) : _irq[type].add(fptr); serial_irq_set(&_serial, (SerialIrq)type, 1); return pf; } bool Serial::remove_handler(pFunctionPointer_t pf, IrqType type) { bool res = _irq[type].remove(pf); if (res && _irq[type].size() == 0) serial_irq_set(&_serial, (SerialIrq)type, 0); return res; } void Serial::_irq_handler(uint32_t id, SerialIrq irq_type) { Serial *handler = (Serial*)id; handler->_irq[irq_type].call(); } int Serial::_getc() { return serial_getc(&_serial); } int Serial::_putc(int c) { serial_putc(&_serial, c); return c; } void Serial::send_break() { // Wait for 1.5 frames before clearing the break condition // This will have different effects on our platforms, but should // ensure that we keep the break active for at least one frame. // We consider a full frame (1 start bit + 8 data bits bits + // 1 parity bit + 2 stop bits = 12 bits) for computation. // One bit time (in us) = 1000000/_baud // Twelve bits: 12000000/baud delay // 1.5 frames: 18000000/baud delay serial_break_set(&_serial); wait_us(18000000/_baud); serial_break_clear(&_serial); } } // namespace mbed #endif