Nothing Special / mbed-STM32F100R6

mbed-dev library fork for STM32F100R6 microcontroller (LQFP64, 24MHz, 32kB flash, 4kB ram, 2-channel DAC, HDMI CEC, very cheap) . Use in online compiler (instead mbed library) with selected platform Nucleo F103RB.

Fork of mbed-dev by mbed official




Tested and working:

  • blink
  • system frequency 24Mhz (with external xtal 8Mhz)
  • stdio uart on pins PA_2-PA_3
  • Serial on pins PA_9-PA_10
  • AnalogOut on pins PA_4, PA_5 (DAC)
  • AnalogIn on pins PA_0, PA_1, PA_2, PA_3, PA_4, PA_5, PA_6, PA_7, PB_0, PB_1, PC_0, PC_1, PC_2, PC_3, PC_5, PC_5


    Notes:
  • TIM2 is used for mbed needs (eq Timer, Ticker, wait etc. )




    Simple test program:

    Import programtestF100R6

    simple tests for STM32F100R6 microcontroller with dedicated library

    Last commit 19 Mar 2017 by Nothing Special

hal/i2c_api.h@51:25d18ad142c8, 2017-03-19 (annotated)

Committer:
mega64
Date:
Sun Mar 19 23:16:34 2017 +0000
Revision:
51:25d18ad142c8
Parent:
0:9b334a45a8ff 
fixed incompatibility with the modified mbed environment Ch.n+1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2015 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_I2C_API_H
bogdanm 0:9b334a45a8ff 17 #define MBED_I2C_API_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "device.h"
bogdanm 0:9b334a45a8ff 20 #include "buffer.h"
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 #if DEVICE_I2C
bogdanm 0:9b334a45a8ff 23
mega64 51:25d18ad142c8 24 // for 100F6 not implemented (N.S.)
mega64 51:25d18ad142c8 25 #undef DEVICE_I2C_ASYNCH
mega64 51:25d18ad142c8 26
mega64 51:25d18ad142c8 27
bogdanm 0:9b334a45a8ff 28 /**
bogdanm 0:9b334a45a8ff 29 * @defgroup I2CEvents I2C Events Macros
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 * @{
bogdanm 0:9b334a45a8ff 32 */
bogdanm 0:9b334a45a8ff 33 #define I2C_EVENT_ERROR (1 << 1)
bogdanm 0:9b334a45a8ff 34 #define I2C_EVENT_ERROR_NO_SLAVE (1 << 2)
bogdanm 0:9b334a45a8ff 35 #define I2C_EVENT_TRANSFER_COMPLETE (1 << 3)
bogdanm 0:9b334a45a8ff 36 #define I2C_EVENT_TRANSFER_EARLY_NACK (1 << 4)
bogdanm 0:9b334a45a8ff 37 #define I2C_EVENT_ALL (I2C_EVENT_ERROR | I2C_EVENT_TRANSFER_COMPLETE | I2C_EVENT_ERROR_NO_SLAVE | I2C_EVENT_TRANSFER_EARLY_NACK)
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 /**@}*/
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41 #if DEVICE_I2C_ASYNCH
bogdanm 0:9b334a45a8ff 42 /** Asynch i2c hal structure
bogdanm 0:9b334a45a8ff 43 */
bogdanm 0:9b334a45a8ff 44 typedef struct {
bogdanm 0:9b334a45a8ff 45 struct i2c_s i2c; /**< Target specific i2c structure */
bogdanm 0:9b334a45a8ff 46 struct buffer_s tx_buff; /**< Tx buffer */
bogdanm 0:9b334a45a8ff 47 struct buffer_s rx_buff; /**< Rx buffer */
bogdanm 0:9b334a45a8ff 48 } i2c_t;
bogdanm 0:9b334a45a8ff 49
bogdanm 0:9b334a45a8ff 50 #else
bogdanm 0:9b334a45a8ff 51 /** Non-asynch i2c hal structure
bogdanm 0:9b334a45a8ff 52 */
bogdanm 0:9b334a45a8ff 53 typedef struct i2c_s i2c_t;
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 #endif
bogdanm 0:9b334a45a8ff 56
bogdanm 0:9b334a45a8ff 57 enum {
bogdanm 0:9b334a45a8ff 58 I2C_ERROR_NO_SLAVE = -1,
bogdanm 0:9b334a45a8ff 59 I2C_ERROR_BUS_BUSY = -2
bogdanm 0:9b334a45a8ff 60 };
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 63 extern "C" {
bogdanm 0:9b334a45a8ff 64 #endif
bogdanm 0:9b334a45a8ff 65
bogdanm 0:9b334a45a8ff 66 /**
bogdanm 0:9b334a45a8ff 67 * \defgroup GeneralI2C I2C Configuration Functions
bogdanm 0:9b334a45a8ff 68 * @{
bogdanm 0:9b334a45a8ff 69 */
bogdanm 0:9b334a45a8ff 70
bogdanm 0:9b334a45a8ff 71 /** Initialize the I2C peripheral. It sets the default parameters for I2C
bogdanm 0:9b334a45a8ff 72 * peripheral, and configure its specifieds pins.
bogdanm 0:9b334a45a8ff 73 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 74 * @param sda The sda pin
bogdanm 0:9b334a45a8ff 75 * @param scl The scl pin
bogdanm 0:9b334a45a8ff 76 */
bogdanm 0:9b334a45a8ff 77 void i2c_init(i2c_t *obj, PinName sda, PinName scl);
bogdanm 0:9b334a45a8ff 78
bogdanm 0:9b334a45a8ff 79 /** Configure the I2C frequency.
bogdanm 0:9b334a45a8ff 80 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 81 * @param hz Frequency in Hz
bogdanm 0:9b334a45a8ff 82 */
bogdanm 0:9b334a45a8ff 83 void i2c_frequency(i2c_t *obj, int hz);
bogdanm 0:9b334a45a8ff 84
bogdanm 0:9b334a45a8ff 85 /** Send START command.
bogdanm 0:9b334a45a8ff 86 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 87 */
bogdanm 0:9b334a45a8ff 88 int i2c_start(i2c_t *obj);
bogdanm 0:9b334a45a8ff 89
bogdanm 0:9b334a45a8ff 90 /** Send STOP command.
bogdanm 0:9b334a45a8ff 91 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 92 */
bogdanm 0:9b334a45a8ff 93 int i2c_stop(i2c_t *obj);
bogdanm 0:9b334a45a8ff 94
bogdanm 0:9b334a45a8ff 95 /** Blocking reading data.
bogdanm 0:9b334a45a8ff 96 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 97 * @param address 7-bit address (last bit is 1)
bogdanm 0:9b334a45a8ff 98 * @param data The buffer for receiving
bogdanm 0:9b334a45a8ff 99 * @param length Number of bytes to read
bogdanm 0:9b334a45a8ff 100 * @param stop Stop to be generated after the transfer is done
bogdanm 0:9b334a45a8ff 101 * @return Number of read bytes
bogdanm 0:9b334a45a8ff 102 */
bogdanm 0:9b334a45a8ff 103 int i2c_read(i2c_t *obj, int address, char *data, int length, int stop);
bogdanm 0:9b334a45a8ff 104
bogdanm 0:9b334a45a8ff 105 /** Blocking sending data.
bogdanm 0:9b334a45a8ff 106 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 107 * @param address 7-bit address (last bit is 0)
bogdanm 0:9b334a45a8ff 108 * @param data The buffer for sending
bogdanm 0:9b334a45a8ff 109 * @param length Number of bytes to wrte
bogdanm 0:9b334a45a8ff 110 * @param stop Stop to be generated after the transfer is done
bogdanm 0:9b334a45a8ff 111 * @return Number of written bytes
bogdanm 0:9b334a45a8ff 112 */
bogdanm 0:9b334a45a8ff 113 int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop);
bogdanm 0:9b334a45a8ff 114
bogdanm 0:9b334a45a8ff 115 /** Reset I2C peripheral. TODO: The action here. Most of the implementation sends stop().
bogdanm 0:9b334a45a8ff 116 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 117 */
bogdanm 0:9b334a45a8ff 118 void i2c_reset(i2c_t *obj);
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 /** Read one byte.
bogdanm 0:9b334a45a8ff 121 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 122 * @param last Acknoledge
bogdanm 0:9b334a45a8ff 123 * @return The read byte
bogdanm 0:9b334a45a8ff 124 */
bogdanm 0:9b334a45a8ff 125 int i2c_byte_read(i2c_t *obj, int last);
bogdanm 0:9b334a45a8ff 126
bogdanm 0:9b334a45a8ff 127 /** Write one byte.
bogdanm 0:9b334a45a8ff 128 * @param obj The i2c object
bogdanm 0:9b334a45a8ff 129 * @param data Byte to be written
bogdanm 0:9b334a45a8ff 130 * @return 1 if NAK was received, 0 if ACK was received, 2 for timeout.
bogdanm 0:9b334a45a8ff 131 */
bogdanm 0:9b334a45a8ff 132 int i2c_byte_write(i2c_t *obj, int data);
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 /**@}*/
bogdanm 0:9b334a45a8ff 135
bogdanm 0:9b334a45a8ff 136 #if DEVICE_I2CSLAVE
bogdanm 0:9b334a45a8ff 137
bogdanm 0:9b334a45a8ff 138 /**
bogdanm 0:9b334a45a8ff 139 * \defgroup SynchI2C Synchronous I2C Hardware Abstraction Layer for slave
bogdanm 0:9b334a45a8ff 140 * @{
bogdanm 0:9b334a45a8ff 141 */
bogdanm 0:9b334a45a8ff 142
bogdanm 0:9b334a45a8ff 143 /** Configure I2C as slave or master.
bogdanm 0:9b334a45a8ff 144 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 145 * @return non-zero if a value is available
bogdanm 0:9b334a45a8ff 146 */
bogdanm 0:9b334a45a8ff 147 void i2c_slave_mode(i2c_t *obj, int enable_slave);
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 /** Check to see if the I2C slave has been addressed.
bogdanm 0:9b334a45a8ff 150 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 151 * @return The status - 1 - read addresses, 2 - write to all slaves,
bogdanm 0:9b334a45a8ff 152 * 3 write addressed, 0 - the slave has not been addressed
bogdanm 0:9b334a45a8ff 153 */
bogdanm 0:9b334a45a8ff 154 int i2c_slave_receive(i2c_t *obj);
bogdanm 0:9b334a45a8ff 155
bogdanm 0:9b334a45a8ff 156 /** Configure I2C as slave or master.
bogdanm 0:9b334a45a8ff 157 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 158 * @return non-zero if a value is available
bogdanm 0:9b334a45a8ff 159 */
bogdanm 0:9b334a45a8ff 160 int i2c_slave_read(i2c_t *obj, char *data, int length);
bogdanm 0:9b334a45a8ff 161
bogdanm 0:9b334a45a8ff 162 /** Configure I2C as slave or master.
bogdanm 0:9b334a45a8ff 163 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 164 * @return non-zero if a value is available
bogdanm 0:9b334a45a8ff 165 */
bogdanm 0:9b334a45a8ff 166 int i2c_slave_write(i2c_t *obj, const char *data, int length);
bogdanm 0:9b334a45a8ff 167
bogdanm 0:9b334a45a8ff 168 /** Configure I2C address.
bogdanm 0:9b334a45a8ff 169 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 170 * @param idx Currently not used
bogdanm 0:9b334a45a8ff 171 * @param address The address to be set
bogdanm 0:9b334a45a8ff 172 * @param mask Currently not used
bogdanm 0:9b334a45a8ff 173 */
bogdanm 0:9b334a45a8ff 174 void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask);
bogdanm 0:9b334a45a8ff 175
bogdanm 0:9b334a45a8ff 176 #endif
bogdanm 0:9b334a45a8ff 177
bogdanm 0:9b334a45a8ff 178 /**@}*/
bogdanm 0:9b334a45a8ff 179
bogdanm 0:9b334a45a8ff 180 #if DEVICE_I2C_ASYNCH
bogdanm 0:9b334a45a8ff 181
bogdanm 0:9b334a45a8ff 182 /**
bogdanm 0:9b334a45a8ff 183 * \defgroup AsynchI2C Asynchronous I2C Hardware Abstraction Layer
bogdanm 0:9b334a45a8ff 184 * @{
bogdanm 0:9b334a45a8ff 185 */
bogdanm 0:9b334a45a8ff 186
bogdanm 0:9b334a45a8ff 187 /** Start i2c asynchronous transfer.
bogdanm 0:9b334a45a8ff 188 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 189 * @param tx The buffer to send
bogdanm 0:9b334a45a8ff 190 * @param tx_length The number of words to transmit
bogdanm 0:9b334a45a8ff 191 * @param rx The buffer to receive
bogdanm 0:9b334a45a8ff 192 * @param rx_length The number of words to receive
bogdanm 0:9b334a45a8ff 193 * @param address The address to be set - 7bit or 9 bit
bogdanm 0:9b334a45a8ff 194 * @param stop If true, stop will be generated after the transfer is done
bogdanm 0:9b334a45a8ff 195 * @param handler The I2C IRQ handler to be set
bogdanm 0:9b334a45a8ff 196 * @param hint DMA hint usage
bogdanm 0:9b334a45a8ff 197 */
bogdanm 0:9b334a45a8ff 198 void i2c_transfer_asynch(i2c_t *obj, const void *tx, size_t tx_length, void *rx, size_t rx_length, uint32_t address, uint32_t stop, uint32_t handler, uint32_t event, DMAUsage hint);
bogdanm 0:9b334a45a8ff 199
bogdanm 0:9b334a45a8ff 200 /** The asynchronous IRQ handler
bogdanm 0:9b334a45a8ff 201 * @param obj The I2C object which holds the transfer information
bogdanm 0:9b334a45a8ff 202 * @return event flags if a transfer termination condition was met or 0 otherwise.
bogdanm 0:9b334a45a8ff 203 */
bogdanm 0:9b334a45a8ff 204 uint32_t i2c_irq_handler_asynch(i2c_t *obj);
bogdanm 0:9b334a45a8ff 205
bogdanm 0:9b334a45a8ff 206 /** Attempts to determine if I2C peripheral is already in use.
bogdanm 0:9b334a45a8ff 207 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 208 * @return non-zero if the I2C module is active or zero if it is not
bogdanm 0:9b334a45a8ff 209 */
bogdanm 0:9b334a45a8ff 210 uint8_t i2c_active(i2c_t *obj);
bogdanm 0:9b334a45a8ff 211
bogdanm 0:9b334a45a8ff 212 /** Abort ongoing asynchronous transaction.
bogdanm 0:9b334a45a8ff 213 * @param obj The I2C object
bogdanm 0:9b334a45a8ff 214 */
bogdanm 0:9b334a45a8ff 215 void i2c_abort_asynch(i2c_t *obj);
bogdanm 0:9b334a45a8ff 216
bogdanm 0:9b334a45a8ff 217 #endif
bogdanm 0:9b334a45a8ff 218
bogdanm 0:9b334a45a8ff 219 /**@}*/
bogdanm 0:9b334a45a8ff 220
bogdanm 0:9b334a45a8ff 221 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 222 }
bogdanm 0:9b334a45a8ff 223 #endif
bogdanm 0:9b334a45a8ff 224
bogdanm 0:9b334a45a8ff 225 #endif
bogdanm 0:9b334a45a8ff 226
bogdanm 0:9b334a45a8ff 227 #endif