0904_BOOT/BSP/bsp.c

#include "bsp.h"
#include "includes.h"

device_public_info_t device_public_info;
device_mcu_info_t device_mcu_info;
MqttIdPort mqttidport;

uint32_t Reset_cnt = 0;

void RCC_Configuration(void)
{
	//使能备份寄存器
	/* enable PMU and BKPI clocks */
    rcu_periph_clock_enable(RCU_BKPI);
    rcu_periph_clock_enable(RCU_PMU);
    /* allow access to BKP domain */
    pmu_backup_write_enable();
}

//函数功能:设置看门狗复位周期为4.8秒
void IWDG_Config(void)
{
    rcu_osci_on(RCU_IRC40K);//启动"内部40KHz振荡器"
    while(SUCCESS != rcu_osci_stab_wait(RCU_IRC40K))
    {//等待"内部40KHz振荡器稳定"
    }

    fwdgt_write_enable();//允许访问FWDGT_RLD(看门狗重装载寄存器)和FWDGT_PSC(看门狗预分频器寄存器)
    fwdgt_config((3000-1), FWDGT_PSC_DIV64);
    //设置IWDG重装载值为2999,重装载寄存器IWDG_RLR有12位值,设置IWDG预分频值为64
    //独立看门狗的分频器输出周期为:64/40KHz=1.6ms
    //独立看门狗的复位周期为:3000*64/40KHz=4800ms
    fwdgt_counter_reload();  //喂狗,按照IWDG重装载寄存器FWDGT_RLR的值重装载IWDG计数器
    fwdgt_enable();  //使能IWDG
}

//读取eeprom中的设备产测信息
void device_info_get(void)
{
	uint8_t read[64];
	memset(&device_public_info,0,sizeof(device_public_info_t));
	AT24CXX_Read(DEVICE_PUBLIC_INFO_ADDR,read,sizeof(device_public_info_t)*2);
	//解码
    HM_decode(read,(uint8_t *)&device_public_info,sizeof(device_public_info_t)*2);
}

//eeprom上电初始化处理
void eeprom_init_handle(void)
{
	AT24CXX_Read(DEVICE_PUBLIC_INFO_ADDR,(uint8_t *)&device_public_info,sizeof(device_public_info_t));

	AT24CXX_Read(DEVICE_VERSION_INFO_ADDR,(uint8_t *)&device_mcu_info,sizeof(device_mcu_info_t));
	
	AT24CXX_Read(DEVICE_RESET_ADDR,(uint8_t *)&Reset_cnt,4);
}

extern uint8_t updata_flag;
//更新eeprom信息
void eeprom_info_updata(void)
{
	Reset_cnt++;
	AT24CXX_Write(DEVICE_RESET_ADDR,(uint8_t *)&Reset_cnt,4);
	
	//如果bt版本不对，写bt版本
	if(device_mcu_info.bootloader_ver != SOFTWARE_VERSION_BOOT)
	{
		device_mcu_info.bootloader_ver = SOFTWARE_VERSION_BOOT;
		AT24CXX_Write(DEVICE_VERSION_INFO_ADDR,(uint8_t *)&device_mcu_info.bootloader_ver,4);
	}
		
	//如果执行过升级或回退，写app1、2、3版本
	if(updata_flag)
	{
		updata_flag = 0;
//		HM_encode((uint8_t *)&device_mcu_info.app1_ver,code_buf,12);
		AT24CXX_Write(DEVICE_VERSION_INFO_ADDR+4,(uint8_t *)&device_mcu_info.pt_ver,12);
	}
	

}


//设置标记高位取反
//将一个数设置为高八位是第八位的取反
uint16_t set_flag_not(uint16_t data)
{
	uint16_t temp_data,ret_data = 0;
	uint16_t temp_h,temp_l;
	temp_data = data;
	temp_h = ((~temp_data)<<8)&0xff00;
	temp_l = temp_data&0x00ff;
	ret_data = temp_h | temp_l;
	return ret_data;
}

//标记高位取反判断
uint8_t flag_not_cmp(uint16_t data)
{
	uint8_t ret = 0;
	uint16_t temp_data;
	uint8_t temp_h,temp_l;
	temp_data = data;
	temp_h = (uint8_t)((temp_data&0xff00)>>8);
	temp_l = (uint8_t)(temp_data&0x00ff);
	if((temp_h^temp_l) == 0xff)
	{
		ret = 1;
	}
	return ret;
}


/*
对app进行校验
参数：addr：app首地址
	 len: app长度
	 checkdata：计算的crc值
返回：0：校验正确，1：校验失败
*/
uint8_t app_check(uint32_t addr, uint32_t len, uint32_t *checkdata)
{
	uint8_t ret = 0;
	uint32_t datalen,read_crc,get_crc;
	datalen = Flash_DatalenRead(addr,len);
	read_crc = *(uint32_t*)(addr + datalen-4); //CRC校验
	
	rcu_periph_clock_enable(RCU_CRC);//打开crc时钟
	crc_data_register_reset();//复位crc数据寄存器
	get_crc = crc_block_data_calculate((uint32_t*)addr,(datalen -4)/4);//计算crc数值
	rcu_periph_clock_disable(RCU_CRC);//关闭crc时钟
	
	*checkdata = get_crc;
	if(read_crc != get_crc)
	{
		ret = 1;
	}
	return ret;
}