Arrow / Mbed OS DAPLink Reset

Repostiory containing DAPLink source code with Reset Pin workaround for HANI_IOT board.

Upstream: https://github.com/ARMmbed/DAPLink

source/hic_hal/nxp/lpc4322/read_uid.c@0:01f31e923fe2, 2020-04-07 (annotated)

Committer:
Pawel Zarembski
Date:
Tue Apr 07 12:55:42 2020 +0200
Revision:
0:01f31e923fe2
hani: DAPLink with reset workaround

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pawel Zarembski 0:01f31e923fe2 1 /**
Pawel Zarembski 0:01f31e923fe2 2 * @file read_uid.c
Pawel Zarembski 0:01f31e923fe2 3 * @brief
Pawel Zarembski 0:01f31e923fe2 4 *
Pawel Zarembski 0:01f31e923fe2 5 * DAPLink Interface Firmware
Pawel Zarembski 0:01f31e923fe2 6 * Copyright (c) 2009-2016, ARM Limited, All Rights Reserved
Pawel Zarembski 0:01f31e923fe2 7 * SPDX-License-Identifier: Apache-2.0
Pawel Zarembski 0:01f31e923fe2 8 *
Pawel Zarembski 0:01f31e923fe2 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Pawel Zarembski 0:01f31e923fe2 10 * not use this file except in compliance with the License.
Pawel Zarembski 0:01f31e923fe2 11 * You may obtain a copy of the License at
Pawel Zarembski 0:01f31e923fe2 12 *
Pawel Zarembski 0:01f31e923fe2 13 * http://www.apache.org/licenses/LICENSE-2.0
Pawel Zarembski 0:01f31e923fe2 14 *
Pawel Zarembski 0:01f31e923fe2 15 * Unless required by applicable law or agreed to in writing, software
Pawel Zarembski 0:01f31e923fe2 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Pawel Zarembski 0:01f31e923fe2 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pawel Zarembski 0:01f31e923fe2 18 * See the License for the specific language governing permissions and
Pawel Zarembski 0:01f31e923fe2 19 * limitations under the License.
Pawel Zarembski 0:01f31e923fe2 20 */
Pawel Zarembski 0:01f31e923fe2 21
Pawel Zarembski 0:01f31e923fe2 22 #include "read_uid.h"
Pawel Zarembski 0:01f31e923fe2 23 #include "cortex_m.h"
Pawel Zarembski 0:01f31e923fe2 24
Pawel Zarembski 0:01f31e923fe2 25 #define IAP_LOCATION *(volatile unsigned int *)(0x10400100)
Pawel Zarembski 0:01f31e923fe2 26 static uint32_t command[5];
Pawel Zarembski 0:01f31e923fe2 27 static uint32_t result[5];
Pawel Zarembski 0:01f31e923fe2 28 typedef void (*IAP)(uint32_t[], uint32_t[]);
Pawel Zarembski 0:01f31e923fe2 29
Pawel Zarembski 0:01f31e923fe2 30 void read_unique_id(uint32_t *id)
Pawel Zarembski 0:01f31e923fe2 31 {
Pawel Zarembski 0:01f31e923fe2 32 #if defined(INTERNAL_FLASH)
Pawel Zarembski 0:01f31e923fe2 33 cortex_int_state_t local_state = cortex_int_get_and_disable();
Pawel Zarembski 0:01f31e923fe2 34
Pawel Zarembski 0:01f31e923fe2 35 // readUID IAP call
Pawel Zarembski 0:01f31e923fe2 36 IAP iap_entry = (IAP)IAP_LOCATION;
Pawel Zarembski 0:01f31e923fe2 37 command[0] = 58;
Pawel Zarembski 0:01f31e923fe2 38 iap_entry(command, result);
Pawel Zarembski 0:01f31e923fe2 39 *id = result[1] ^ result[2] ^ result[3] ^ result[4];
Pawel Zarembski 0:01f31e923fe2 40
Pawel Zarembski 0:01f31e923fe2 41 cortex_int_restore(local_state);
Pawel Zarembski 0:01f31e923fe2 42 #else
Pawel Zarembski 0:01f31e923fe2 43 // IAP commands are only supported for parts with on-chip flash.
Pawel Zarembski 0:01f31e923fe2 44 (void)command;
Pawel Zarembski 0:01f31e923fe2 45 (void)result;
Pawel Zarembski 0:01f31e923fe2 46 *id = 0xdeadbeef;
Pawel Zarembski 0:01f31e923fe2 47 #endif
Pawel Zarembski 0:01f31e923fe2 48 }