Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

common/mbed_interface.c@1:ebce2ad32f95, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 03:07:12 2015 +0000
Revision:
1:ebce2ad32f95
Parent:
0:ba7650f404af 
Changed the RCC timeout value to 500 ms, so total code startup time before program starts running is ~1s. Hopefully no side-effects from lower startup timeouts

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2013 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include <stdio.h>
aravindsv 0:ba7650f404af 17 #include "mbed_interface.h"
aravindsv 0:ba7650f404af 18
aravindsv 0:ba7650f404af 19 #include "gpio_api.h"
aravindsv 0:ba7650f404af 20 #include "wait_api.h"
aravindsv 0:ba7650f404af 21 #include "semihost_api.h"
aravindsv 0:ba7650f404af 22 #include "mbed_error.h"
aravindsv 0:ba7650f404af 23 #include "toolchain.h"
aravindsv 0:ba7650f404af 24
aravindsv 0:ba7650f404af 25 #if DEVICE_SEMIHOST
aravindsv 0:ba7650f404af 26
aravindsv 0:ba7650f404af 27 // return true if a debugger is attached, indicating mbed interface is connected
aravindsv 0:ba7650f404af 28 int mbed_interface_connected(void) {
aravindsv 0:ba7650f404af 29 return semihost_connected();
aravindsv 0:ba7650f404af 30 }
aravindsv 0:ba7650f404af 31
aravindsv 0:ba7650f404af 32 int mbed_interface_reset(void) {
aravindsv 0:ba7650f404af 33 if (mbed_interface_connected()) {
aravindsv 0:ba7650f404af 34 semihost_reset();
aravindsv 0:ba7650f404af 35 return 0;
aravindsv 0:ba7650f404af 36 } else {
aravindsv 0:ba7650f404af 37 return -1;
aravindsv 0:ba7650f404af 38 }
aravindsv 0:ba7650f404af 39 }
aravindsv 0:ba7650f404af 40
aravindsv 0:ba7650f404af 41 WEAK int mbed_interface_uid(char *uid) {
aravindsv 0:ba7650f404af 42 if (mbed_interface_connected()) {
aravindsv 0:ba7650f404af 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
aravindsv 0:ba7650f404af 44 } else {
aravindsv 0:ba7650f404af 45 uid[0] = 0;
aravindsv 0:ba7650f404af 46 return -1;
aravindsv 0:ba7650f404af 47 }
aravindsv 0:ba7650f404af 48 }
aravindsv 0:ba7650f404af 49
aravindsv 0:ba7650f404af 50 int mbed_interface_disconnect(void) {
aravindsv 0:ba7650f404af 51 int res;
aravindsv 0:ba7650f404af 52 if (mbed_interface_connected()) {
aravindsv 0:ba7650f404af 53 if ((res = semihost_disabledebug()) != 0)
aravindsv 0:ba7650f404af 54 return res;
aravindsv 0:ba7650f404af 55 while (mbed_interface_connected());
aravindsv 0:ba7650f404af 56 return 0;
aravindsv 0:ba7650f404af 57 } else {
aravindsv 0:ba7650f404af 58 return -1;
aravindsv 0:ba7650f404af 59 }
aravindsv 0:ba7650f404af 60 }
aravindsv 0:ba7650f404af 61
aravindsv 0:ba7650f404af 62 int mbed_interface_powerdown(void) {
aravindsv 0:ba7650f404af 63 int res;
aravindsv 0:ba7650f404af 64 if (mbed_interface_connected()) {
aravindsv 0:ba7650f404af 65 if ((res = semihost_powerdown()) != 0)
aravindsv 0:ba7650f404af 66 return res;
aravindsv 0:ba7650f404af 67 while (mbed_interface_connected());
aravindsv 0:ba7650f404af 68 return 0;
aravindsv 0:ba7650f404af 69 } else {
aravindsv 0:ba7650f404af 70 return -1;
aravindsv 0:ba7650f404af 71 }
aravindsv 0:ba7650f404af 72 }
aravindsv 0:ba7650f404af 73
aravindsv 0:ba7650f404af 74 // for backward compatibility
aravindsv 0:ba7650f404af 75 void mbed_reset(void) {
aravindsv 0:ba7650f404af 76 mbed_interface_reset();
aravindsv 0:ba7650f404af 77 }
aravindsv 0:ba7650f404af 78
aravindsv 0:ba7650f404af 79 WEAK int mbed_uid(char *uid) {
aravindsv 0:ba7650f404af 80 return mbed_interface_uid(uid);
aravindsv 0:ba7650f404af 81 }
aravindsv 0:ba7650f404af 82 #endif
aravindsv 0:ba7650f404af 83
aravindsv 0:ba7650f404af 84 WEAK void mbed_mac_address(char *mac) {
aravindsv 0:ba7650f404af 85 #if DEVICE_SEMIHOST
aravindsv 0:ba7650f404af 86 char uid[DEVICE_ID_LENGTH + 1];
aravindsv 0:ba7650f404af 87 int i;
aravindsv 0:ba7650f404af 88
aravindsv 0:ba7650f404af 89 // if we have a UID, extract the MAC
aravindsv 0:ba7650f404af 90 if (mbed_interface_uid(uid) == 0) {
aravindsv 0:ba7650f404af 91 char *p = uid;
aravindsv 0:ba7650f404af 92 #if defined(DEVICE_MAC_OFFSET)
aravindsv 0:ba7650f404af 93 p += DEVICE_MAC_OFFSET;
aravindsv 0:ba7650f404af 94 #endif
aravindsv 0:ba7650f404af 95 for (i=0; i<6; i++) {
aravindsv 0:ba7650f404af 96 int byte;
aravindsv 0:ba7650f404af 97 sscanf(p, "%2x", &byte);
aravindsv 0:ba7650f404af 98 mac[i] = byte;
aravindsv 0:ba7650f404af 99 p += 2;
aravindsv 0:ba7650f404af 100 }
aravindsv 0:ba7650f404af 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
aravindsv 0:ba7650f404af 102 } else { // else return a default MAC
aravindsv 0:ba7650f404af 103 #endif
aravindsv 0:ba7650f404af 104 mac[0] = 0x00;
aravindsv 0:ba7650f404af 105 mac[1] = 0x02;
aravindsv 0:ba7650f404af 106 mac[2] = 0xF7;
aravindsv 0:ba7650f404af 107 mac[3] = 0xF0;
aravindsv 0:ba7650f404af 108 mac[4] = 0x00;
aravindsv 0:ba7650f404af 109 mac[5] = 0x00;
aravindsv 0:ba7650f404af 110 #if DEVICE_SEMIHOST
aravindsv 0:ba7650f404af 111 }
aravindsv 0:ba7650f404af 112 #endif
aravindsv 0:ba7650f404af 113 }