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

common/mbed_interface.c@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 #include <stdio.h>
bogdanm 0:9b334a45a8ff 17 #include "mbed_interface.h"
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "gpio_api.h"
bogdanm 0:9b334a45a8ff 20 #include "wait_api.h"
bogdanm 0:9b334a45a8ff 21 #include "semihost_api.h"
bogdanm 0:9b334a45a8ff 22 #include "mbed_error.h"
bogdanm 0:9b334a45a8ff 23 #include "toolchain.h"
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 #if DEVICE_SEMIHOST
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 // return true if a debugger is attached, indicating mbed interface is connected
bogdanm 0:9b334a45a8ff 28 int mbed_interface_connected(void) {
bogdanm 0:9b334a45a8ff 29 return semihost_connected();
bogdanm 0:9b334a45a8ff 30 }
bogdanm 0:9b334a45a8ff 31
bogdanm 0:9b334a45a8ff 32 int mbed_interface_reset(void) {
bogdanm 0:9b334a45a8ff 33 if (mbed_interface_connected()) {
bogdanm 0:9b334a45a8ff 34 semihost_reset();
bogdanm 0:9b334a45a8ff 35 return 0;
bogdanm 0:9b334a45a8ff 36 } else {
bogdanm 0:9b334a45a8ff 37 return -1;
bogdanm 0:9b334a45a8ff 38 }
bogdanm 0:9b334a45a8ff 39 }
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41 WEAK int mbed_interface_uid(char *uid) {
bogdanm 0:9b334a45a8ff 42 if (mbed_interface_connected()) {
bogdanm 0:9b334a45a8ff 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
bogdanm 0:9b334a45a8ff 44 } else {
bogdanm 0:9b334a45a8ff 45 uid[0] = 0;
bogdanm 0:9b334a45a8ff 46 return -1;
bogdanm 0:9b334a45a8ff 47 }
bogdanm 0:9b334a45a8ff 48 }
bogdanm 0:9b334a45a8ff 49
bogdanm 0:9b334a45a8ff 50 int mbed_interface_disconnect(void) {
bogdanm 0:9b334a45a8ff 51 int res;
bogdanm 0:9b334a45a8ff 52 if (mbed_interface_connected()) {
bogdanm 0:9b334a45a8ff 53 if ((res = semihost_disabledebug()) != 0)
bogdanm 0:9b334a45a8ff 54 return res;
bogdanm 0:9b334a45a8ff 55 while (mbed_interface_connected());
bogdanm 0:9b334a45a8ff 56 return 0;
bogdanm 0:9b334a45a8ff 57 } else {
bogdanm 0:9b334a45a8ff 58 return -1;
bogdanm 0:9b334a45a8ff 59 }
bogdanm 0:9b334a45a8ff 60 }
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 int mbed_interface_powerdown(void) {
bogdanm 0:9b334a45a8ff 63 int res;
bogdanm 0:9b334a45a8ff 64 if (mbed_interface_connected()) {
bogdanm 0:9b334a45a8ff 65 if ((res = semihost_powerdown()) != 0)
bogdanm 0:9b334a45a8ff 66 return res;
bogdanm 0:9b334a45a8ff 67 while (mbed_interface_connected());
bogdanm 0:9b334a45a8ff 68 return 0;
bogdanm 0:9b334a45a8ff 69 } else {
bogdanm 0:9b334a45a8ff 70 return -1;
bogdanm 0:9b334a45a8ff 71 }
bogdanm 0:9b334a45a8ff 72 }
bogdanm 0:9b334a45a8ff 73
bogdanm 0:9b334a45a8ff 74 // for backward compatibility
bogdanm 0:9b334a45a8ff 75 void mbed_reset(void) {
bogdanm 0:9b334a45a8ff 76 mbed_interface_reset();
bogdanm 0:9b334a45a8ff 77 }
bogdanm 0:9b334a45a8ff 78
bogdanm 0:9b334a45a8ff 79 WEAK int mbed_uid(char *uid) {
bogdanm 0:9b334a45a8ff 80 return mbed_interface_uid(uid);
bogdanm 0:9b334a45a8ff 81 }
bogdanm 0:9b334a45a8ff 82 #endif
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 WEAK void mbed_mac_address(char *mac) {
bogdanm 0:9b334a45a8ff 85 #if DEVICE_SEMIHOST
bogdanm 0:9b334a45a8ff 86 char uid[DEVICE_ID_LENGTH + 1];
bogdanm 0:9b334a45a8ff 87 int i;
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89 // if we have a UID, extract the MAC
bogdanm 0:9b334a45a8ff 90 if (mbed_interface_uid(uid) == 0) {
bogdanm 0:9b334a45a8ff 91 char *p = uid;
bogdanm 0:9b334a45a8ff 92 #if defined(DEVICE_MAC_OFFSET)
bogdanm 0:9b334a45a8ff 93 p += DEVICE_MAC_OFFSET;
bogdanm 0:9b334a45a8ff 94 #endif
bogdanm 0:9b334a45a8ff 95 for (i=0; i<6; i++) {
bogdanm 0:9b334a45a8ff 96 int byte;
bogdanm 0:9b334a45a8ff 97 sscanf(p, "%2x", &byte);
bogdanm 0:9b334a45a8ff 98 mac[i] = byte;
bogdanm 0:9b334a45a8ff 99 p += 2;
bogdanm 0:9b334a45a8ff 100 }
bogdanm 0:9b334a45a8ff 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
bogdanm 0:9b334a45a8ff 102 } else { // else return a default MAC
bogdanm 0:9b334a45a8ff 103 #endif
bogdanm 0:9b334a45a8ff 104 mac[0] = 0x00;
bogdanm 0:9b334a45a8ff 105 mac[1] = 0x02;
bogdanm 0:9b334a45a8ff 106 mac[2] = 0xF7;
bogdanm 0:9b334a45a8ff 107 mac[3] = 0xF0;
bogdanm 0:9b334a45a8ff 108 mac[4] = 0x00;
bogdanm 0:9b334a45a8ff 109 mac[5] = 0x00;
bogdanm 0:9b334a45a8ff 110 #if DEVICE_SEMIHOST
bogdanm 0:9b334a45a8ff 111 }
bogdanm 0:9b334a45a8ff 112 #endif
bogdanm 0:9b334a45a8ff 113 }