Adam Kucybala / mbed-src

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of mbed-src by mbed official

common/mbed_interface.c@210:45934c3d812a, 2014-05-23 (annotated)

Committer:
mbed_official
Date:
Fri May 23 14:00:06 2014 +0100
Revision:
210:45934c3d812a
Parent:
13:0645d8841f51
Child:
221:8276e3a4886f
Synchronized with git revision 99a176f7d5549b64361bb8968207bf651d580e69



Full URL: https://github.com/mbedmicro/mbed/commit/99a176f7d5549b64361bb8968207bf651d580e69/



[NUCLEO_L053R8] I2C1 clock + SPI slave receive

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #include <stdio.h>
bogdanm 13:0645d8841f51 17 #include "mbed_interface.h"
bogdanm 13:0645d8841f51 18
bogdanm 13:0645d8841f51 19 #include "gpio_api.h"
bogdanm 13:0645d8841f51 20 #include "wait_api.h"
bogdanm 13:0645d8841f51 21 #include "semihost_api.h"
bogdanm 13:0645d8841f51 22 #include "error.h"
bogdanm 13:0645d8841f51 23 #include "toolchain.h"
bogdanm 13:0645d8841f51 24
bogdanm 13:0645d8841f51 25 #if DEVICE_SEMIHOST
bogdanm 13:0645d8841f51 26
bogdanm 13:0645d8841f51 27 // return true if a debugger is attached, indicating mbed interface is connected
bogdanm 13:0645d8841f51 28 int mbed_interface_connected(void) {
bogdanm 13:0645d8841f51 29 return semihost_connected();
bogdanm 13:0645d8841f51 30 }
bogdanm 13:0645d8841f51 31
bogdanm 13:0645d8841f51 32 int mbed_interface_reset(void) {
bogdanm 13:0645d8841f51 33 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 34 semihost_reset();
bogdanm 13:0645d8841f51 35 return 0;
bogdanm 13:0645d8841f51 36 } else {
bogdanm 13:0645d8841f51 37 return -1;
bogdanm 13:0645d8841f51 38 }
bogdanm 13:0645d8841f51 39 }
bogdanm 13:0645d8841f51 40
bogdanm 13:0645d8841f51 41 WEAK int mbed_interface_uid(char *uid);
bogdanm 13:0645d8841f51 42 WEAK int mbed_interface_uid(char *uid) {
bogdanm 13:0645d8841f51 43 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 44 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
bogdanm 13:0645d8841f51 45 } else {
bogdanm 13:0645d8841f51 46 uid[0] = 0;
bogdanm 13:0645d8841f51 47 return -1;
bogdanm 13:0645d8841f51 48 }
bogdanm 13:0645d8841f51 49 }
bogdanm 13:0645d8841f51 50
bogdanm 13:0645d8841f51 51 int mbed_interface_disconnect(void) {
bogdanm 13:0645d8841f51 52 int res;
bogdanm 13:0645d8841f51 53 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 54 if ((res = semihost_disabledebug()) != 0)
bogdanm 13:0645d8841f51 55 return res;
bogdanm 13:0645d8841f51 56 while (mbed_interface_connected());
bogdanm 13:0645d8841f51 57 return 0;
bogdanm 13:0645d8841f51 58 } else {
bogdanm 13:0645d8841f51 59 return -1;
bogdanm 13:0645d8841f51 60 }
bogdanm 13:0645d8841f51 61 }
bogdanm 13:0645d8841f51 62
bogdanm 13:0645d8841f51 63 int mbed_interface_powerdown(void) {
bogdanm 13:0645d8841f51 64 int res;
bogdanm 13:0645d8841f51 65 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 66 if ((res = semihost_powerdown()) != 0)
bogdanm 13:0645d8841f51 67 return res;
bogdanm 13:0645d8841f51 68 while (mbed_interface_connected());
bogdanm 13:0645d8841f51 69 return 0;
bogdanm 13:0645d8841f51 70 } else {
bogdanm 13:0645d8841f51 71 return -1;
bogdanm 13:0645d8841f51 72 }
bogdanm 13:0645d8841f51 73 }
bogdanm 13:0645d8841f51 74
bogdanm 13:0645d8841f51 75 // for backward compatibility
bogdanm 13:0645d8841f51 76 void mbed_reset(void) {
bogdanm 13:0645d8841f51 77 mbed_interface_reset();
bogdanm 13:0645d8841f51 78 }
bogdanm 13:0645d8841f51 79
bogdanm 13:0645d8841f51 80 WEAK int mbed_uid(char *uid);
bogdanm 13:0645d8841f51 81 WEAK int mbed_uid(char *uid) {
bogdanm 13:0645d8841f51 82 return mbed_interface_uid(uid);
bogdanm 13:0645d8841f51 83 }
bogdanm 13:0645d8841f51 84 #endif
bogdanm 13:0645d8841f51 85
bogdanm 13:0645d8841f51 86 WEAK void mbed_mac_address(char *mac);
bogdanm 13:0645d8841f51 87 WEAK void mbed_mac_address(char *mac) {
bogdanm 13:0645d8841f51 88 #if DEVICE_SEMIHOST
bogdanm 13:0645d8841f51 89 char uid[DEVICE_ID_LENGTH + 1];
bogdanm 13:0645d8841f51 90 int i;
bogdanm 13:0645d8841f51 91
bogdanm 13:0645d8841f51 92 // if we have a UID, extract the MAC
bogdanm 13:0645d8841f51 93 if (mbed_interface_uid(uid) == 0) {
bogdanm 13:0645d8841f51 94 char *p = uid;
bogdanm 13:0645d8841f51 95 #if defined(DEVICE_MAC_OFFSET)
bogdanm 13:0645d8841f51 96 p += DEVICE_MAC_OFFSET;
bogdanm 13:0645d8841f51 97 #endif
bogdanm 13:0645d8841f51 98 for (i=0; i<6; i++) {
bogdanm 13:0645d8841f51 99 int byte;
bogdanm 13:0645d8841f51 100 sscanf(p, "%2x", &byte);
bogdanm 13:0645d8841f51 101 mac[i] = byte;
bogdanm 13:0645d8841f51 102 p += 2;
bogdanm 13:0645d8841f51 103 }
bogdanm 13:0645d8841f51 104 } else { // else return a default MAC
bogdanm 13:0645d8841f51 105 #endif
bogdanm 13:0645d8841f51 106 mac[0] = 0x00;
bogdanm 13:0645d8841f51 107 mac[1] = 0x02;
bogdanm 13:0645d8841f51 108 mac[2] = 0xF7;
bogdanm 13:0645d8841f51 109 mac[3] = 0xF0;
bogdanm 13:0645d8841f51 110 mac[4] = 0x00;
bogdanm 13:0645d8841f51 111 mac[5] = 0x00;
bogdanm 13:0645d8841f51 112 #if DEVICE_SEMIHOST
bogdanm 13:0645d8841f51 113 }
bogdanm 13:0645d8841f51 114 #endif
bogdanm 13:0645d8841f51 115 }