microSD カードのビットマップ・ファイルのビュアー.画像の最大値 縦:272ピクセル,横:480ピクセル. Bitmap file viewer for microSD card. Maximum size Vertical: 272 pixels, Horizontal: 480.
Dependencies: SDFileSystem_Warning_Fixed F746_GUI
mbed_src_STM32F7/common/SerialBase.cpp
- Committer:
- MikamiUitOpen
- Date:
- 2018-10-21
- Revision:
- 0:f62ffd3644bf
File content as of revision 0:f62ffd3644bf:
/* 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 "SerialBase.h" #include "wait_api.h" #if DEVICE_SERIAL namespace mbed { SerialBase::SerialBase(PinName tx, PinName rx) : #if DEVICE_SERIAL_ASYNCH _thunk_irq(this), _tx_usage(DMA_USAGE_NEVER), _rx_usage(DMA_USAGE_NEVER), #endif _serial(), _baud(9600) { serial_init(&_serial, tx, rx); serial_irq_handler(&_serial, SerialBase::_irq_handler, (uint32_t)this); } void SerialBase::baud(int baudrate) { serial_baud(&_serial, baudrate); _baud = baudrate; } void SerialBase::format(int bits, Parity parity, int stop_bits) { serial_format(&_serial, bits, (SerialParity)parity, stop_bits); } int SerialBase::readable() { return serial_readable(&_serial); } int SerialBase::writeable() { return serial_writable(&_serial); } void SerialBase::attach(void (*fptr)(void), IrqType type) { if (fptr) { _irq[type].attach(fptr); serial_irq_set(&_serial, (SerialIrq)type, 1); } else { serial_irq_set(&_serial, (SerialIrq)type, 0); } } void SerialBase::_irq_handler(uint32_t id, SerialIrq irq_type) { SerialBase *handler = (SerialBase*)id; handler->_irq[irq_type].call(); } int SerialBase::_base_getc() { return serial_getc(&_serial); } int SerialBase::_base_putc(int c) { serial_putc(&_serial, c); return c; } void SerialBase::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); } #if DEVICE_SERIAL_FC void SerialBase::set_flow_control(Flow type, PinName flow1, PinName flow2) { FlowControl flow_type = (FlowControl)type; switch(type) { case RTS: serial_set_flow_control(&_serial, flow_type, flow1, NC); break; case CTS: serial_set_flow_control(&_serial, flow_type, NC, flow1); break; case RTSCTS: case Disabled: serial_set_flow_control(&_serial, flow_type, flow1, flow2); break; default: break; } } #endif #if DEVICE_SERIAL_ASYNCH int SerialBase::write(const uint8_t *buffer, int length, const event_callback_t& callback, int event) { if (serial_tx_active(&_serial)) { return -1; // transaction ongoing } start_write((void *)buffer, length, 8, callback, event); return 0; } int SerialBase::write(const uint16_t *buffer, int length, const event_callback_t& callback, int event) { if (serial_tx_active(&_serial)) { return -1; // transaction ongoing } start_write((void *)buffer, length, 16, callback, event); return 0; } void SerialBase::start_write(const void *buffer, int buffer_size, char buffer_width, const event_callback_t& callback, int event) { _tx_callback = callback; _thunk_irq.callback(&SerialBase::interrupt_handler_asynch); serial_tx_asynch(&_serial, buffer, buffer_size, buffer_width, _thunk_irq.entry(), event, _tx_usage); } void SerialBase::abort_write(void) { serial_tx_abort_asynch(&_serial); } void SerialBase::abort_read(void) { serial_rx_abort_asynch(&_serial); } int SerialBase::set_dma_usage_tx(DMAUsage usage) { if (serial_tx_active(&_serial)) { return -1; } _tx_usage = usage; return 0; } int SerialBase::set_dma_usage_rx(DMAUsage usage) { if (serial_tx_active(&_serial)) { return -1; } _rx_usage = usage; return 0; } int SerialBase::read(uint8_t *buffer, int length, const event_callback_t& callback, int event, unsigned char char_match) { if (serial_rx_active(&_serial)) { return -1; // transaction ongoing } start_read((void*)buffer, length, 8, callback, event, char_match); return 0; } int SerialBase::read(uint16_t *buffer, int length, const event_callback_t& callback, int event, unsigned char char_match) { if (serial_rx_active(&_serial)) { return -1; // transaction ongoing } start_read((void*)buffer, length, 16, callback, event, char_match); return 0; } void SerialBase::start_read(void *buffer, int buffer_size, char buffer_width, const event_callback_t& callback, int event, unsigned char char_match) { _rx_callback = callback; _thunk_irq.callback(&SerialBase::interrupt_handler_asynch); serial_rx_asynch(&_serial, buffer, buffer_size, buffer_width, _thunk_irq.entry(), event, char_match, _rx_usage); } void SerialBase::interrupt_handler_asynch(void) { int event = serial_irq_handler_asynch(&_serial); int rx_event = event & SERIAL_EVENT_RX_MASK; if (_rx_callback && rx_event) { _rx_callback.call(rx_event); } int tx_event = event & SERIAL_EVENT_TX_MASK; if (_tx_callback && tx_event) { _tx_callback.call(tx_event); } } #endif } // namespace mbed #endif