philippe s. / mbed-dev

mbed library sources. Supersedes mbed-src. Fixes analogIn and analogOut problems for TARGET_STM32F3. Tested on NUCLEO-F303K8, using 3 analogout and 7 analogin channels simultaneously. Added ability for STM32F334R8 and STM32F303K8 to use all three channels of DAC simultaneously. https://developer.mbed.org/users/StevieWray/code/mbed-dev/ Added ability for TARGET_STM32F3 to use more than one ADC simultaneously. https://developer.mbed.org/questions/67997/NUCLEO-F303K8ADC/

Fork of mbed-dev by mbed official

api/SerialBase.h@70:b3a5af880266, 2016-02-23 (annotated)

Committer:
neurofun
Date:
Tue Feb 23 21:59:35 2016 +0000
Revision:
70:b3a5af880266
Parent:
0:9b334a45a8ff 
Edited DAC routines to allow for the simultaneous use of three channels from two DACs as seen on the STM32F334R8 and STM32F303K8. Edited ADC routines to allow for the simultaneous use of more than one ADC.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #ifndef MBED_SERIALBASE_H
bogdanm 0:9b334a45a8ff 17 #define MBED_SERIALBASE_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "platform.h"
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 #if DEVICE_SERIAL
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 #include "Stream.h"
bogdanm 0:9b334a45a8ff 24 #include "FunctionPointer.h"
bogdanm 0:9b334a45a8ff 25 #include "serial_api.h"
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 #if DEVICE_SERIAL_ASYNCH
bogdanm 0:9b334a45a8ff 28 #include "CThunk.h"
bogdanm 0:9b334a45a8ff 29 #include "dma_api.h"
bogdanm 0:9b334a45a8ff 30 #endif
bogdanm 0:9b334a45a8ff 31
bogdanm 0:9b334a45a8ff 32 namespace mbed {
bogdanm 0:9b334a45a8ff 33
bogdanm 0:9b334a45a8ff 34 /** A base class for serial port implementations
bogdanm 0:9b334a45a8ff 35 * Can't be instantiated directly (use Serial or RawSerial)
bogdanm 0:9b334a45a8ff 36 */
bogdanm 0:9b334a45a8ff 37 class SerialBase {
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 public:
bogdanm 0:9b334a45a8ff 40 /** Set the baud rate of the serial port
bogdanm 0:9b334a45a8ff 41 *
bogdanm 0:9b334a45a8ff 42 * @param baudrate The baudrate of the serial port (default = 9600).
bogdanm 0:9b334a45a8ff 43 */
bogdanm 0:9b334a45a8ff 44 void baud(int baudrate);
bogdanm 0:9b334a45a8ff 45
bogdanm 0:9b334a45a8ff 46 enum Parity {
bogdanm 0:9b334a45a8ff 47 None = 0,
bogdanm 0:9b334a45a8ff 48 Odd,
bogdanm 0:9b334a45a8ff 49 Even,
bogdanm 0:9b334a45a8ff 50 Forced1,
bogdanm 0:9b334a45a8ff 51 Forced0
bogdanm 0:9b334a45a8ff 52 };
bogdanm 0:9b334a45a8ff 53
bogdanm 0:9b334a45a8ff 54 enum IrqType {
bogdanm 0:9b334a45a8ff 55 RxIrq = 0,
bogdanm 0:9b334a45a8ff 56 TxIrq
bogdanm 0:9b334a45a8ff 57 };
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 enum Flow {
bogdanm 0:9b334a45a8ff 60 Disabled = 0,
bogdanm 0:9b334a45a8ff 61 RTS,
bogdanm 0:9b334a45a8ff 62 CTS,
bogdanm 0:9b334a45a8ff 63 RTSCTS
bogdanm 0:9b334a45a8ff 64 };
bogdanm 0:9b334a45a8ff 65
bogdanm 0:9b334a45a8ff 66 /** Set the transmission format used by the serial port
bogdanm 0:9b334a45a8ff 67 *
bogdanm 0:9b334a45a8ff 68 * @param bits The number of bits in a word (5-8; default = 8)
bogdanm 0:9b334a45a8ff 69 * @param parity The parity used (SerialBase::None, SerialBase::Odd, SerialBase::Even, SerialBase::Forced1, SerialBase::Forced0; default = SerialBase::None)
bogdanm 0:9b334a45a8ff 70 * @param stop The number of stop bits (1 or 2; default = 1)
bogdanm 0:9b334a45a8ff 71 */
bogdanm 0:9b334a45a8ff 72 void format(int bits=8, Parity parity=SerialBase::None, int stop_bits=1);
bogdanm 0:9b334a45a8ff 73
bogdanm 0:9b334a45a8ff 74 /** Determine if there is a character available to read
bogdanm 0:9b334a45a8ff 75 *
bogdanm 0:9b334a45a8ff 76 * @returns
bogdanm 0:9b334a45a8ff 77 * 1 if there is a character available to read,
bogdanm 0:9b334a45a8ff 78 * 0 otherwise
bogdanm 0:9b334a45a8ff 79 */
bogdanm 0:9b334a45a8ff 80 int readable();
bogdanm 0:9b334a45a8ff 81
bogdanm 0:9b334a45a8ff 82 /** Determine if there is space available to write a character
bogdanm 0:9b334a45a8ff 83 *
bogdanm 0:9b334a45a8ff 84 * @returns
bogdanm 0:9b334a45a8ff 85 * 1 if there is space to write a character,
bogdanm 0:9b334a45a8ff 86 * 0 otherwise
bogdanm 0:9b334a45a8ff 87 */
bogdanm 0:9b334a45a8ff 88 int writeable();
bogdanm 0:9b334a45a8ff 89
bogdanm 0:9b334a45a8ff 90 /** Attach a function to call whenever a serial interrupt is generated
bogdanm 0:9b334a45a8ff 91 *
bogdanm 0:9b334a45a8ff 92 * @param fptr A pointer to a void function, or 0 to set as none
bogdanm 0:9b334a45a8ff 93 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
bogdanm 0:9b334a45a8ff 94 */
bogdanm 0:9b334a45a8ff 95 void attach(void (*fptr)(void), IrqType type=RxIrq);
bogdanm 0:9b334a45a8ff 96
bogdanm 0:9b334a45a8ff 97 /** Attach a member function to call whenever a serial interrupt is generated
bogdanm 0:9b334a45a8ff 98 *
bogdanm 0:9b334a45a8ff 99 * @param tptr pointer to the object to call the member function on
bogdanm 0:9b334a45a8ff 100 * @param mptr pointer to the member function to be called
bogdanm 0:9b334a45a8ff 101 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
bogdanm 0:9b334a45a8ff 102 */
bogdanm 0:9b334a45a8ff 103 template<typename T>
bogdanm 0:9b334a45a8ff 104 void attach(T* tptr, void (T::*mptr)(void), IrqType type=RxIrq) {
bogdanm 0:9b334a45a8ff 105 if((mptr != NULL) && (tptr != NULL)) {
bogdanm 0:9b334a45a8ff 106 _irq[type].attach(tptr, mptr);
bogdanm 0:9b334a45a8ff 107 serial_irq_set(&_serial, (SerialIrq)type, 1);
bogdanm 0:9b334a45a8ff 108 } else {
bogdanm 0:9b334a45a8ff 109 serial_irq_set(&_serial, (SerialIrq)type, 0);
bogdanm 0:9b334a45a8ff 110 }
bogdanm 0:9b334a45a8ff 111 }
bogdanm 0:9b334a45a8ff 112
bogdanm 0:9b334a45a8ff 113 /** Generate a break condition on the serial line
bogdanm 0:9b334a45a8ff 114 */
bogdanm 0:9b334a45a8ff 115 void send_break();
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 #if DEVICE_SERIAL_FC
bogdanm 0:9b334a45a8ff 118 /** Set the flow control type on the serial port
bogdanm 0:9b334a45a8ff 119 *
bogdanm 0:9b334a45a8ff 120 * @param type the flow control type (Disabled, RTS, CTS, RTSCTS)
bogdanm 0:9b334a45a8ff 121 * @param flow1 the first flow control pin (RTS for RTS or RTSCTS, CTS for CTS)
bogdanm 0:9b334a45a8ff 122 * @param flow2 the second flow control pin (CTS for RTSCTS)
bogdanm 0:9b334a45a8ff 123 */
bogdanm 0:9b334a45a8ff 124 void set_flow_control(Flow type, PinName flow1=NC, PinName flow2=NC);
bogdanm 0:9b334a45a8ff 125 #endif
bogdanm 0:9b334a45a8ff 126
bogdanm 0:9b334a45a8ff 127 static void _irq_handler(uint32_t id, SerialIrq irq_type);
bogdanm 0:9b334a45a8ff 128
bogdanm 0:9b334a45a8ff 129 #if DEVICE_SERIAL_ASYNCH
bogdanm 0:9b334a45a8ff 130
bogdanm 0:9b334a45a8ff 131 /** Begin asynchronous write using 8bit buffer. The completition invokes registered TX event callback
bogdanm 0:9b334a45a8ff 132 *
bogdanm 0:9b334a45a8ff 133 * @param buffer The buffer where received data will be stored
bogdanm 0:9b334a45a8ff 134 * @param length The buffer length in bytes
bogdanm 0:9b334a45a8ff 135 * @param callback The event callback function
bogdanm 0:9b334a45a8ff 136 * @param event The logical OR of TX events
bogdanm 0:9b334a45a8ff 137 */
bogdanm 0:9b334a45a8ff 138 int write(const uint8_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_TX_COMPLETE);
bogdanm 0:9b334a45a8ff 139
bogdanm 0:9b334a45a8ff 140 /** Begin asynchronous write using 16bit buffer. The completition invokes registered TX event callback
bogdanm 0:9b334a45a8ff 141 *
bogdanm 0:9b334a45a8ff 142 * @param buffer The buffer where received data will be stored
bogdanm 0:9b334a45a8ff 143 * @param length The buffer length in bytes
bogdanm 0:9b334a45a8ff 144 * @param callback The event callback function
bogdanm 0:9b334a45a8ff 145 * @param event The logical OR of TX events
bogdanm 0:9b334a45a8ff 146 */
bogdanm 0:9b334a45a8ff 147 int write(const uint16_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_TX_COMPLETE);
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 /** Abort the on-going write transfer
bogdanm 0:9b334a45a8ff 150 */
bogdanm 0:9b334a45a8ff 151 void abort_write();
bogdanm 0:9b334a45a8ff 152
bogdanm 0:9b334a45a8ff 153 /** Begin asynchronous reading using 8bit buffer. The completition invokes registred RX event callback.
bogdanm 0:9b334a45a8ff 154 *
bogdanm 0:9b334a45a8ff 155 * @param buffer The buffer where received data will be stored
bogdanm 0:9b334a45a8ff 156 * @param length The buffer length in bytes
bogdanm 0:9b334a45a8ff 157 * @param callback The event callback function
bogdanm 0:9b334a45a8ff 158 * @param event The logical OR of RX events
bogdanm 0:9b334a45a8ff 159 * @param char_match The matching character
bogdanm 0:9b334a45a8ff 160 */
bogdanm 0:9b334a45a8ff 161 int read(uint8_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_RX_COMPLETE, unsigned char char_match = SERIAL_RESERVED_CHAR_MATCH);
bogdanm 0:9b334a45a8ff 162
bogdanm 0:9b334a45a8ff 163 /** Begin asynchronous reading using 16bit buffer. The completition invokes registred RX event callback.
bogdanm 0:9b334a45a8ff 164 *
bogdanm 0:9b334a45a8ff 165 * @param buffer The buffer where received data will be stored
bogdanm 0:9b334a45a8ff 166 * @param length The buffer length in bytes
bogdanm 0:9b334a45a8ff 167 * @param callback The event callback function
bogdanm 0:9b334a45a8ff 168 * @param event The logical OR of RX events
bogdanm 0:9b334a45a8ff 169 * @param char_match The matching character
bogdanm 0:9b334a45a8ff 170 */
bogdanm 0:9b334a45a8ff 171 int read(uint16_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_RX_COMPLETE, unsigned char char_match = SERIAL_RESERVED_CHAR_MATCH);
bogdanm 0:9b334a45a8ff 172
bogdanm 0:9b334a45a8ff 173 /** Abort the on-going read transfer
bogdanm 0:9b334a45a8ff 174 */
bogdanm 0:9b334a45a8ff 175 void abort_read();
bogdanm 0:9b334a45a8ff 176
bogdanm 0:9b334a45a8ff 177 /** Configure DMA usage suggestion for non-blocking TX transfers
bogdanm 0:9b334a45a8ff 178 *
bogdanm 0:9b334a45a8ff 179 * @param usage The usage DMA hint for peripheral
bogdanm 0:9b334a45a8ff 180 * @return Zero if the usage was set, -1 if a transaction is on-going
bogdanm 0:9b334a45a8ff 181 */
bogdanm 0:9b334a45a8ff 182 int set_dma_usage_tx(DMAUsage usage);
bogdanm 0:9b334a45a8ff 183
bogdanm 0:9b334a45a8ff 184 /** Configure DMA usage suggestion for non-blocking RX transfers
bogdanm 0:9b334a45a8ff 185 *
bogdanm 0:9b334a45a8ff 186 * @param usage The usage DMA hint for peripheral
bogdanm 0:9b334a45a8ff 187 * @return Zero if the usage was set, -1 if a transaction is on-going
bogdanm 0:9b334a45a8ff 188 */
bogdanm 0:9b334a45a8ff 189 int set_dma_usage_rx(DMAUsage usage);
bogdanm 0:9b334a45a8ff 190
bogdanm 0:9b334a45a8ff 191 protected:
bogdanm 0:9b334a45a8ff 192 void start_read(void *buffer, int buffer_size, char buffer_width, const event_callback_t& callback, int event, unsigned char char_match);
bogdanm 0:9b334a45a8ff 193 void start_write(const void *buffer, int buffer_size, char buffer_width, const event_callback_t& callback, int event);
bogdanm 0:9b334a45a8ff 194 void interrupt_handler_asynch(void);
bogdanm 0:9b334a45a8ff 195 #endif
bogdanm 0:9b334a45a8ff 196
bogdanm 0:9b334a45a8ff 197 protected:
bogdanm 0:9b334a45a8ff 198 SerialBase(PinName tx, PinName rx);
bogdanm 0:9b334a45a8ff 199 virtual ~SerialBase() {
bogdanm 0:9b334a45a8ff 200 }
bogdanm 0:9b334a45a8ff 201
bogdanm 0:9b334a45a8ff 202 int _base_getc();
bogdanm 0:9b334a45a8ff 203 int _base_putc(int c);
bogdanm 0:9b334a45a8ff 204
bogdanm 0:9b334a45a8ff 205 #if DEVICE_SERIAL_ASYNCH
bogdanm 0:9b334a45a8ff 206 CThunk<SerialBase> _thunk_irq;
bogdanm 0:9b334a45a8ff 207 event_callback_t _tx_callback;
bogdanm 0:9b334a45a8ff 208 event_callback_t _rx_callback;
bogdanm 0:9b334a45a8ff 209 DMAUsage _tx_usage;
bogdanm 0:9b334a45a8ff 210 DMAUsage _rx_usage;
bogdanm 0:9b334a45a8ff 211 #endif
bogdanm 0:9b334a45a8ff 212
bogdanm 0:9b334a45a8ff 213 serial_t _serial;
bogdanm 0:9b334a45a8ff 214 FunctionPointer _irq[2];
bogdanm 0:9b334a45a8ff 215 int _baud;
bogdanm 0:9b334a45a8ff 216
bogdanm 0:9b334a45a8ff 217 };
bogdanm 0:9b334a45a8ff 218
bogdanm 0:9b334a45a8ff 219 } // namespace mbed
bogdanm 0:9b334a45a8ff 220
bogdanm 0:9b334a45a8ff 221 #endif
bogdanm 0:9b334a45a8ff 222
bogdanm 0:9b334a45a8ff 223 #endif