不韋 呂 / F746_SD_Player_Demo

Demo program for library named SD_PlayerSkeleton of SD card player skeleton. SD カードプレーヤのための骨組みとして使うためのライブラリ SD_PlayerSkeleton の使用例．このプログラムについては，CQ出版社インターフェース誌 2018年7月号で解説している．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton

mbed_src_STM32F7/common/mbed_interface.c@19:3c3833ec00d2, 2017-04-09 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Apr 09 12:44:17 2017 +0000
Revision:
19:3c3833ec00d2
Parent:
2:cf42e62a97dc 
20

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 2:cf42e62a97dc 1 /* mbed Microcontroller Library
MikamiUitOpen 2:cf42e62a97dc 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 2:cf42e62a97dc 3 *
MikamiUitOpen 2:cf42e62a97dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 2:cf42e62a97dc 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 2:cf42e62a97dc 6 * You may obtain a copy of the License at
MikamiUitOpen 2:cf42e62a97dc 7 *
MikamiUitOpen 2:cf42e62a97dc 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 2:cf42e62a97dc 9 *
MikamiUitOpen 2:cf42e62a97dc 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 2:cf42e62a97dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 2:cf42e62a97dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 2:cf42e62a97dc 13 * See the License for the specific language governing permissions and
MikamiUitOpen 2:cf42e62a97dc 14 * limitations under the License.
MikamiUitOpen 2:cf42e62a97dc 15 */
MikamiUitOpen 2:cf42e62a97dc 16 #include <stdio.h>
MikamiUitOpen 2:cf42e62a97dc 17 #include "mbed_interface.h"
MikamiUitOpen 2:cf42e62a97dc 18
MikamiUitOpen 2:cf42e62a97dc 19 #include "gpio_api.h"
MikamiUitOpen 2:cf42e62a97dc 20 #include "wait_api.h"
MikamiUitOpen 2:cf42e62a97dc 21 #include "semihost_api.h"
MikamiUitOpen 2:cf42e62a97dc 22 #include "mbed_error.h"
MikamiUitOpen 2:cf42e62a97dc 23 #include "toolchain.h"
MikamiUitOpen 2:cf42e62a97dc 24
MikamiUitOpen 2:cf42e62a97dc 25 #if DEVICE_SEMIHOST
MikamiUitOpen 2:cf42e62a97dc 26
MikamiUitOpen 2:cf42e62a97dc 27 // return true if a debugger is attached, indicating mbed interface is connected
MikamiUitOpen 2:cf42e62a97dc 28 int mbed_interface_connected(void) {
MikamiUitOpen 2:cf42e62a97dc 29 return semihost_connected();
MikamiUitOpen 2:cf42e62a97dc 30 }
MikamiUitOpen 2:cf42e62a97dc 31
MikamiUitOpen 2:cf42e62a97dc 32 int mbed_interface_reset(void) {
MikamiUitOpen 2:cf42e62a97dc 33 if (mbed_interface_connected()) {
MikamiUitOpen 2:cf42e62a97dc 34 semihost_reset();
MikamiUitOpen 2:cf42e62a97dc 35 return 0;
MikamiUitOpen 2:cf42e62a97dc 36 } else {
MikamiUitOpen 2:cf42e62a97dc 37 return -1;
MikamiUitOpen 2:cf42e62a97dc 38 }
MikamiUitOpen 2:cf42e62a97dc 39 }
MikamiUitOpen 2:cf42e62a97dc 40
MikamiUitOpen 2:cf42e62a97dc 41 WEAK int mbed_interface_uid(char *uid) {
MikamiUitOpen 2:cf42e62a97dc 42 if (mbed_interface_connected()) {
MikamiUitOpen 2:cf42e62a97dc 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
MikamiUitOpen 2:cf42e62a97dc 44 } else {
MikamiUitOpen 2:cf42e62a97dc 45 uid[0] = 0;
MikamiUitOpen 2:cf42e62a97dc 46 return -1;
MikamiUitOpen 2:cf42e62a97dc 47 }
MikamiUitOpen 2:cf42e62a97dc 48 }
MikamiUitOpen 2:cf42e62a97dc 49
MikamiUitOpen 2:cf42e62a97dc 50 int mbed_interface_disconnect(void) {
MikamiUitOpen 2:cf42e62a97dc 51 int res;
MikamiUitOpen 2:cf42e62a97dc 52 if (mbed_interface_connected()) {
MikamiUitOpen 2:cf42e62a97dc 53 if ((res = semihost_disabledebug()) != 0)
MikamiUitOpen 2:cf42e62a97dc 54 return res;
MikamiUitOpen 2:cf42e62a97dc 55 while (mbed_interface_connected());
MikamiUitOpen 2:cf42e62a97dc 56 return 0;
MikamiUitOpen 2:cf42e62a97dc 57 } else {
MikamiUitOpen 2:cf42e62a97dc 58 return -1;
MikamiUitOpen 2:cf42e62a97dc 59 }
MikamiUitOpen 2:cf42e62a97dc 60 }
MikamiUitOpen 2:cf42e62a97dc 61
MikamiUitOpen 2:cf42e62a97dc 62 int mbed_interface_powerdown(void) {
MikamiUitOpen 2:cf42e62a97dc 63 int res;
MikamiUitOpen 2:cf42e62a97dc 64 if (mbed_interface_connected()) {
MikamiUitOpen 2:cf42e62a97dc 65 if ((res = semihost_powerdown()) != 0)
MikamiUitOpen 2:cf42e62a97dc 66 return res;
MikamiUitOpen 2:cf42e62a97dc 67 while (mbed_interface_connected());
MikamiUitOpen 2:cf42e62a97dc 68 return 0;
MikamiUitOpen 2:cf42e62a97dc 69 } else {
MikamiUitOpen 2:cf42e62a97dc 70 return -1;
MikamiUitOpen 2:cf42e62a97dc 71 }
MikamiUitOpen 2:cf42e62a97dc 72 }
MikamiUitOpen 2:cf42e62a97dc 73
MikamiUitOpen 2:cf42e62a97dc 74 // for backward compatibility
MikamiUitOpen 2:cf42e62a97dc 75 void mbed_reset(void) {
MikamiUitOpen 2:cf42e62a97dc 76 mbed_interface_reset();
MikamiUitOpen 2:cf42e62a97dc 77 }
MikamiUitOpen 2:cf42e62a97dc 78
MikamiUitOpen 2:cf42e62a97dc 79 WEAK int mbed_uid(char *uid) {
MikamiUitOpen 2:cf42e62a97dc 80 return mbed_interface_uid(uid);
MikamiUitOpen 2:cf42e62a97dc 81 }
MikamiUitOpen 2:cf42e62a97dc 82 #endif
MikamiUitOpen 2:cf42e62a97dc 83
MikamiUitOpen 2:cf42e62a97dc 84 WEAK void mbed_mac_address(char *mac) {
MikamiUitOpen 2:cf42e62a97dc 85 #if DEVICE_SEMIHOST
MikamiUitOpen 2:cf42e62a97dc 86 char uid[DEVICE_ID_LENGTH + 1];
MikamiUitOpen 2:cf42e62a97dc 87 int i;
MikamiUitOpen 2:cf42e62a97dc 88
MikamiUitOpen 2:cf42e62a97dc 89 // if we have a UID, extract the MAC
MikamiUitOpen 2:cf42e62a97dc 90 if (mbed_interface_uid(uid) == 0) {
MikamiUitOpen 2:cf42e62a97dc 91 char *p = uid;
MikamiUitOpen 2:cf42e62a97dc 92 #if defined(DEVICE_MAC_OFFSET)
MikamiUitOpen 2:cf42e62a97dc 93 p += DEVICE_MAC_OFFSET;
MikamiUitOpen 2:cf42e62a97dc 94 #endif
MikamiUitOpen 2:cf42e62a97dc 95 for (i=0; i<6; i++) {
MikamiUitOpen 2:cf42e62a97dc 96 int byte;
MikamiUitOpen 2:cf42e62a97dc 97 sscanf(p, "%2x", &byte);
MikamiUitOpen 2:cf42e62a97dc 98 mac[i] = byte;
MikamiUitOpen 2:cf42e62a97dc 99 p += 2;
MikamiUitOpen 2:cf42e62a97dc 100 }
MikamiUitOpen 2:cf42e62a97dc 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
MikamiUitOpen 2:cf42e62a97dc 102 } else { // else return a default MAC
MikamiUitOpen 2:cf42e62a97dc 103 #endif
MikamiUitOpen 2:cf42e62a97dc 104 mac[0] = 0x00;
MikamiUitOpen 2:cf42e62a97dc 105 mac[1] = 0x02;
MikamiUitOpen 2:cf42e62a97dc 106 mac[2] = 0xF7;
MikamiUitOpen 2:cf42e62a97dc 107 mac[3] = 0xF0;
MikamiUitOpen 2:cf42e62a97dc 108 mac[4] = 0x00;
MikamiUitOpen 2:cf42e62a97dc 109 mac[5] = 0x00;
MikamiUitOpen 2:cf42e62a97dc 110 #if DEVICE_SEMIHOST
MikamiUitOpen 2:cf42e62a97dc 111 }
MikamiUitOpen 2:cf42e62a97dc 112 #endif
MikamiUitOpen 2:cf42e62a97dc 113 }