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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

common/mbed_interface.c@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Parent:
395:bfce16e86ea4 
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

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"
mbed_official 285:31249416b6f9 22 #include "mbed_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 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
bogdanm 13:0645d8841f51 44 } else {
bogdanm 13:0645d8841f51 45 uid[0] = 0;
bogdanm 13:0645d8841f51 46 return -1;
bogdanm 13:0645d8841f51 47 }
bogdanm 13:0645d8841f51 48 }
bogdanm 13:0645d8841f51 49
bogdanm 13:0645d8841f51 50 int mbed_interface_disconnect(void) {
bogdanm 13:0645d8841f51 51 int res;
bogdanm 13:0645d8841f51 52 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 53 if ((res = semihost_disabledebug()) != 0)
bogdanm 13:0645d8841f51 54 return res;
bogdanm 13:0645d8841f51 55 while (mbed_interface_connected());
bogdanm 13:0645d8841f51 56 return 0;
bogdanm 13:0645d8841f51 57 } else {
bogdanm 13:0645d8841f51 58 return -1;
bogdanm 13:0645d8841f51 59 }
bogdanm 13:0645d8841f51 60 }
bogdanm 13:0645d8841f51 61
bogdanm 13:0645d8841f51 62 int mbed_interface_powerdown(void) {
bogdanm 13:0645d8841f51 63 int res;
bogdanm 13:0645d8841f51 64 if (mbed_interface_connected()) {
bogdanm 13:0645d8841f51 65 if ((res = semihost_powerdown()) != 0)
bogdanm 13:0645d8841f51 66 return res;
bogdanm 13:0645d8841f51 67 while (mbed_interface_connected());
bogdanm 13:0645d8841f51 68 return 0;
bogdanm 13:0645d8841f51 69 } else {
bogdanm 13:0645d8841f51 70 return -1;
bogdanm 13:0645d8841f51 71 }
bogdanm 13:0645d8841f51 72 }
bogdanm 13:0645d8841f51 73
bogdanm 13:0645d8841f51 74 // for backward compatibility
bogdanm 13:0645d8841f51 75 void mbed_reset(void) {
bogdanm 13:0645d8841f51 76 mbed_interface_reset();
bogdanm 13:0645d8841f51 77 }
bogdanm 13:0645d8841f51 78
bogdanm 13:0645d8841f51 79 WEAK int mbed_uid(char *uid) {
bogdanm 13:0645d8841f51 80 return mbed_interface_uid(uid);
bogdanm 13:0645d8841f51 81 }
bogdanm 13:0645d8841f51 82 #endif
bogdanm 13:0645d8841f51 83
bogdanm 13:0645d8841f51 84 WEAK void mbed_mac_address(char *mac) {
bogdanm 13:0645d8841f51 85 #if DEVICE_SEMIHOST
bogdanm 13:0645d8841f51 86 char uid[DEVICE_ID_LENGTH + 1];
bogdanm 13:0645d8841f51 87 int i;
mbed_official 221:8276e3a4886f 88
bogdanm 13:0645d8841f51 89 // if we have a UID, extract the MAC
bogdanm 13:0645d8841f51 90 if (mbed_interface_uid(uid) == 0) {
bogdanm 13:0645d8841f51 91 char *p = uid;
bogdanm 13:0645d8841f51 92 #if defined(DEVICE_MAC_OFFSET)
bogdanm 13:0645d8841f51 93 p += DEVICE_MAC_OFFSET;
bogdanm 13:0645d8841f51 94 #endif
bogdanm 13:0645d8841f51 95 for (i=0; i<6; i++) {
bogdanm 13:0645d8841f51 96 int byte;
bogdanm 13:0645d8841f51 97 sscanf(p, "%2x", &byte);
bogdanm 13:0645d8841f51 98 mac[i] = byte;
bogdanm 13:0645d8841f51 99 p += 2;
bogdanm 13:0645d8841f51 100 }
mbed_official 395:bfce16e86ea4 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
bogdanm 13:0645d8841f51 102 } else { // else return a default MAC
bogdanm 13:0645d8841f51 103 #endif
bogdanm 13:0645d8841f51 104 mac[0] = 0x00;
bogdanm 13:0645d8841f51 105 mac[1] = 0x02;
bogdanm 13:0645d8841f51 106 mac[2] = 0xF7;
bogdanm 13:0645d8841f51 107 mac[3] = 0xF0;
bogdanm 13:0645d8841f51 108 mac[4] = 0x00;
bogdanm 13:0645d8841f51 109 mac[5] = 0x00;
bogdanm 13:0645d8841f51 110 #if DEVICE_SEMIHOST
bogdanm 13:0645d8841f51 111 }
bogdanm 13:0645d8841f51 112 #endif
bogdanm 13:0645d8841f51 113 }