joey shelton / LED_Demo2

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Dependencies:   MAX44000 PWM_Tone_Library nexpaq_mdk

Fork of LED_Demo by joey shelton

mbd_os/hal/common/mbed_interface.c@9:6bb35cef007d, 2016-10-22 (annotated)

Committer:
cyberjoey
Date:
Sat Oct 22 01:31:58 2016 +0000
Revision:
9:6bb35cef007d
Parent:
1:55a6170b404f 
WORKING

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 /* mbed Microcontroller Library
nexpaq 1:55a6170b404f 2 * Copyright (c) 2006-2013 ARM Limited
nexpaq 1:55a6170b404f 3 *
nexpaq 1:55a6170b404f 4 * Licensed under the Apache License, Version 2.0 (the "License");
nexpaq 1:55a6170b404f 5 * you may not use this file except in compliance with the License.
nexpaq 1:55a6170b404f 6 * You may obtain a copy of the License at
nexpaq 1:55a6170b404f 7 *
nexpaq 1:55a6170b404f 8 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 1:55a6170b404f 9 *
nexpaq 1:55a6170b404f 10 * Unless required by applicable law or agreed to in writing, software
nexpaq 1:55a6170b404f 11 * distributed under the License is distributed on an "AS IS" BASIS,
nexpaq 1:55a6170b404f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 1:55a6170b404f 13 * See the License for the specific language governing permissions and
nexpaq 1:55a6170b404f 14 * limitations under the License.
nexpaq 1:55a6170b404f 15 */
nexpaq 1:55a6170b404f 16 #include <stdio.h>
nexpaq 1:55a6170b404f 17 #include "mbed_interface.h"
nexpaq 1:55a6170b404f 18
nexpaq 1:55a6170b404f 19 #include "gpio_api.h"
nexpaq 1:55a6170b404f 20 #include "wait_api.h"
nexpaq 1:55a6170b404f 21 #include "semihost_api.h"
nexpaq 1:55a6170b404f 22 #include "mbed_error.h"
nexpaq 1:55a6170b404f 23 #include "toolchain.h"
nexpaq 1:55a6170b404f 24
nexpaq 1:55a6170b404f 25 #if DEVICE_SEMIHOST
nexpaq 1:55a6170b404f 26
nexpaq 1:55a6170b404f 27 // return true if a debugger is attached, indicating mbed interface is connected
nexpaq 1:55a6170b404f 28 int mbed_interface_connected(void) {
nexpaq 1:55a6170b404f 29 return semihost_connected();
nexpaq 1:55a6170b404f 30 }
nexpaq 1:55a6170b404f 31
nexpaq 1:55a6170b404f 32 int mbed_interface_reset(void) {
nexpaq 1:55a6170b404f 33 if (mbed_interface_connected()) {
nexpaq 1:55a6170b404f 34 semihost_reset();
nexpaq 1:55a6170b404f 35 return 0;
nexpaq 1:55a6170b404f 36 } else {
nexpaq 1:55a6170b404f 37 return -1;
nexpaq 1:55a6170b404f 38 }
nexpaq 1:55a6170b404f 39 }
nexpaq 1:55a6170b404f 40
nexpaq 1:55a6170b404f 41 WEAK int mbed_interface_uid(char *uid) {
nexpaq 1:55a6170b404f 42 if (mbed_interface_connected()) {
nexpaq 1:55a6170b404f 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
nexpaq 1:55a6170b404f 44 } else {
nexpaq 1:55a6170b404f 45 uid[0] = 0;
nexpaq 1:55a6170b404f 46 return -1;
nexpaq 1:55a6170b404f 47 }
nexpaq 1:55a6170b404f 48 }
nexpaq 1:55a6170b404f 49
nexpaq 1:55a6170b404f 50 int mbed_interface_disconnect(void) {
nexpaq 1:55a6170b404f 51 int res;
nexpaq 1:55a6170b404f 52 if (mbed_interface_connected()) {
nexpaq 1:55a6170b404f 53 if ((res = semihost_disabledebug()) != 0)
nexpaq 1:55a6170b404f 54 return res;
nexpaq 1:55a6170b404f 55 while (mbed_interface_connected());
nexpaq 1:55a6170b404f 56 return 0;
nexpaq 1:55a6170b404f 57 } else {
nexpaq 1:55a6170b404f 58 return -1;
nexpaq 1:55a6170b404f 59 }
nexpaq 1:55a6170b404f 60 }
nexpaq 1:55a6170b404f 61
nexpaq 1:55a6170b404f 62 int mbed_interface_powerdown(void) {
nexpaq 1:55a6170b404f 63 int res;
nexpaq 1:55a6170b404f 64 if (mbed_interface_connected()) {
nexpaq 1:55a6170b404f 65 if ((res = semihost_powerdown()) != 0)
nexpaq 1:55a6170b404f 66 return res;
nexpaq 1:55a6170b404f 67 while (mbed_interface_connected());
nexpaq 1:55a6170b404f 68 return 0;
nexpaq 1:55a6170b404f 69 } else {
nexpaq 1:55a6170b404f 70 return -1;
nexpaq 1:55a6170b404f 71 }
nexpaq 1:55a6170b404f 72 }
nexpaq 1:55a6170b404f 73
nexpaq 1:55a6170b404f 74 // for backward compatibility
nexpaq 1:55a6170b404f 75 void mbed_reset(void) {
nexpaq 1:55a6170b404f 76 mbed_interface_reset();
nexpaq 1:55a6170b404f 77 }
nexpaq 1:55a6170b404f 78
nexpaq 1:55a6170b404f 79 WEAK int mbed_uid(char *uid) {
nexpaq 1:55a6170b404f 80 return mbed_interface_uid(uid);
nexpaq 1:55a6170b404f 81 }
nexpaq 1:55a6170b404f 82 #endif
nexpaq 1:55a6170b404f 83
nexpaq 1:55a6170b404f 84 WEAK void mbed_mac_address(char *mac) {
nexpaq 1:55a6170b404f 85 #if DEVICE_SEMIHOST
nexpaq 1:55a6170b404f 86 char uid[DEVICE_ID_LENGTH + 1];
nexpaq 1:55a6170b404f 87 int i;
nexpaq 1:55a6170b404f 88
nexpaq 1:55a6170b404f 89 // if we have a UID, extract the MAC
nexpaq 1:55a6170b404f 90 if (mbed_interface_uid(uid) == 0) {
nexpaq 1:55a6170b404f 91 char *p = uid;
nexpaq 1:55a6170b404f 92 #if defined(DEVICE_MAC_OFFSET)
nexpaq 1:55a6170b404f 93 p += DEVICE_MAC_OFFSET;
nexpaq 1:55a6170b404f 94 #endif
nexpaq 1:55a6170b404f 95 for (i=0; i<6; i++) {
nexpaq 1:55a6170b404f 96 int byte;
nexpaq 1:55a6170b404f 97 sscanf(p, "%2x", &byte);
nexpaq 1:55a6170b404f 98 mac[i] = byte;
nexpaq 1:55a6170b404f 99 p += 2;
nexpaq 1:55a6170b404f 100 }
nexpaq 1:55a6170b404f 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
nexpaq 1:55a6170b404f 102 } else { // else return a default MAC
nexpaq 1:55a6170b404f 103 #endif
nexpaq 1:55a6170b404f 104 mac[0] = 0x00;
nexpaq 1:55a6170b404f 105 mac[1] = 0x02;
nexpaq 1:55a6170b404f 106 mac[2] = 0xF7;
nexpaq 1:55a6170b404f 107 mac[3] = 0xF0;
nexpaq 1:55a6170b404f 108 mac[4] = 0x00;
nexpaq 1:55a6170b404f 109 mac[5] = 0x00;
nexpaq 1:55a6170b404f 110 #if DEVICE_SEMIHOST
nexpaq 1:55a6170b404f 111 }
nexpaq 1:55a6170b404f 112 #endif
nexpaq 1:55a6170b404f 113 }