STM32操作加密芯片源代码

STM32操作SMEC98SP加密芯片的事例代码,如果需要完整代码(包括加密芯片代码),请到中巨伟业 http://www.sinormous.com/download.html下载

#include “stm32f10x.h”
#include “stdio.h”
#include “config.h”
#include “util.h”
#include <string.h>
#include <stdlib.h>
#include “stm32f10x_i2c.h”

#include “smec98sp.h”
#include “iic_smec98sp.h”

void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);

//---------------------------------------------------------
//函数名: 获取STM32的UID
//参数说明：
// pSTM32_UID - 存放STM32的UID,12字节
//返回值说明：
// void
//说明:
//---------------------------------------------------------
void GetStm32Uid(unsigned char *pSTM32_UID)
{
pSTM32_UID[0] = (unsigned char)(0x1FFFF7E8);
pSTM32_UID[1] = (unsigned char)(0x1FFFF7E9);
pSTM32_UID[2] = (unsigned char)(0x1FFFF7Ea);
pSTM32_UID[3] = (unsigned char)(0x1FFFF7Eb);
pSTM32_UID[4] = (unsigned char)(0x1FFFF7Ec);
pSTM32_UID[5] = (unsigned char)(0x1FFFF7Ed);
pSTM32_UID[6] = (unsigned char)(0x1FFFF7Ee);
pSTM32_UID[7] = (unsigned char)(0x1FFFF7Ef);
pSTM32_UID[8] = (unsigned char)(0x1FFFF7f0);
pSTM32_UID[9] = (unsigned char)(0x1FFFF7f1);
pSTM32_UID[10] = (unsigned char)(0x1FFFF7f2);
pSTM32_UID[11] = (unsigned char)(0x1FFFF7f3);
}

#include “stm32f10x_adc.h”
//---------------------------------------------------------
//函数名: 初始化ADC
//参数说明：
// void
//返回值说明：
// void
//说明: 利用ADC悬空引脚产生随机数
// 将PA1 作为模拟通道输入引脚(一定要用悬空脚,否则获取的随机数,不够随机),
//---------------------------------------------------------
void Adc_Init(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_ADC1, ENABLE );      //使能ADC1通道时钟


RCC_ADCCLKConfig(RCC_PCLK2_Div6);   //设置ADC分频因子6 72M/6=12,ADC最大时间不能超过14M

//PA1 作为模拟通道输入引脚, 一定要用悬空脚,否则获取的随机数,不够随机                         
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;        //模拟输入引脚
GPIO_Init(GPIOA, &GPIO_InitStructure);    

ADC_DeInit(ADC1);  //复位ADC1,将外设 ADC1 的全部寄存器重设为缺省值

ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;    //ADC工作模式:ADC1和ADC2工作在独立模式
ADC_InitStructure.ADC_ScanConvMode = DISABLE;    //模数转换工作在单通道模式
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;//DISABLE;    //模数转换工作在单次转换模式
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;    //转换由软件而不是外部触发启动
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;    //ADC数据右对齐
ADC_InitStructure.ADC_NbrOfChannel = 1;    //顺序进行规则转换的ADC通道的数目