77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/****************************************************************************
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* boards/arm/stm32/shenzhou/src/stm32_chipid.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <arch/board/board.h>
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#include "arm_arch.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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const char *stm32_getchipid(void)
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{
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static char cpuid[12];
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int i;
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for (i = 0; i < 12; i++)
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{
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cpuid[i] = getreg8(0x1ffff7e8 + i);
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}
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return cpuid;
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}
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const char *stm32_getchipid_string(void)
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{
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static char cpuid[27];
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int c;
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int i;
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for (i = 0, c = 0; i < 12; i++)
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{
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sprintf(&cpuid[c], "%02X", getreg8(0x1ffff7e8 + 11 - i));
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c += 2;
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if (i % 4 == 3)
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{
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cpuid[c++] = '-';
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}
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}
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cpuid[26] = '\0';
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return cpuid;
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}
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