stm32学习资料

main.c

#include "stm32f10x.h"

#include "RS232_module.h"

#include "RS485_module.h"

#include "Display_module.h"

#include "Flash_module.h"

#include "Progess_module.h"

#include "System_module.h"

#include "Iwdg_hard_dri.h"

#include <string.h>

#include <stdio.h>

int main(void)

{

//系统初始化

STM32APP_Init();

//初始化看门狗4s

IWDG_Init(6,625);?

//模块初始化

Ds_NetInit();

Ds_TimInit();

Ds_DisplayInit();

//获取复位状态

Ds_GetRest();

//获取序列号

Ds_GetXULIEversions();

if(memcmp((u32*)ARMAPP_upstatus,"SUCCESS_UPDATA_M3APP",20) == 0)

{

//升级成功

g_bSendARMUpdateStatusFlag = TRUE;

g_bARMUpdateStatus = 0xAA;

printf("updata m3 app is sucess rn");

}

STMFLASH_ERASEBANK(ARMAPP_upstatus);

while(1)

{

if(UPMCU_FLAG == ?TRUE)

{

RS485_TX_ENABLE; ?//关掉串口接收485数据

Ds_UPDATAMCU(); //升级mcu

Rs485_Init_Flag = TRUE; //清除485缓冲区

RS485_RX_ENABLE; //使能串口接收485

UPMCU_FLAG = FALSE;

}

else

{

//300ms

if(Tim_to_Dispalystate == TRUE)

{

Ds_M3Display();

Tim_to_Dispalystate = FALSE;

}

//100ms

if(Tim_to_gate485state == TRUE)

{

Get_Rs485_State();

Tim_to_gate485state = FALSE;

}

//20ms

if(Tim_to_gate232state == TRUE)

{

Get_Rs232_State();

Tim_to_gate232state = FALSE;

}

}

//喂狗

IWDG_Feed();

}

}

Progess_module.c

#include "stm32f10x.h"

#include "RS232_module.h"

#include "RS232_commun.h"

#include "RS485_module.h"

#include "Tim_module.h"

#include "Display_module.h"

#include "Printf_Select.h"

#include "Flash_module.h"

#include "System_module.h"

#include "Time_hard_dri.h"

#include "Iwdg_hard_dri.h"

#include "Display_module.h"

#include "ProductTypedef.h"

#include <string.h>

#include <stdio.h>

?u8 ?const work[]={?

0xc0,0xf9,0xa4,0xb0,?

0x99,0x92,0x82,0xf8,?

0x80,0x90,0x88,0x83,?

0xc6,0xa1,0x86,0x8e

};?

u8 const pro1[][2]={

{0x8c,0xc0},{0x8c,0xf9},

{0x8c,0xa4},0xb0},0x99},0x92},0x82},0xf8},0x80},0x90},

};

u8 const error1[][2]={

{0x86,{0x86,

{0x86,

};

u8 const error2[][3]={

{0x86,

{0x86,

};

u8 ?error_pos;

u8 ?pro_pos;

u8 ?Dispos_tim;

u8 ?ba_pos;

void Ds_NetInit(void)

{

RS232_Init(UART_Fir); ? ? ?//初始化232 ?UART1

Rs485_Init_Flag = TRUE;//先清除485缓冲

RS485_RX_ENABLE; ? ? ? ? ? //使能485 接收

RS485_Init(UART_Sec); ? ?//初始化485 ?UART2

Printf_Debug_Init(UART_Thou); ? //初始化调试口 ?UART4

}

void ?Ds_TimInit(void)

{

Tim_select_Init(Tim_Thr); ?//3//1.8s RS232心跳

Tim_select_Init(Tim_tw); ? // 20ms获取一次状态 232 ?

Tim_select_Init(Tim_Fou); ?//100ms获取一次状态485

Tim_select_Init(Tim_Five); ?//300ms 更新 显示 18s RS232 通讯故障 ? 9s云灯故障 ?升级mcu 3s超时 ?

}

void Ds_DisplayInit(void)

{

CD4094_Init();//显示初始化

LED_Init(); ? ?//灯初始化

LED_STATE_OFF; ?//状态灯亮

LED_ERROR_OFF;//故障灯亮

LED_CLOUD_OFF; //云灯亮

LED_UPdata_ON; //电源指示灯亮

g_uCurrentKeyRelatedLevel ?= 0; ?//档位初始为0

Cd4094DataOutPut(work[g_uCurrentKeyRelatedLevel ]); //显示0档待机

}

//NRST引脚上的低电平复位

int ?Ds_ResetSelect(void)

{

if(RCC_GetFlagStatus(RCC_FLAG_IWDGRST) == SET) //看门狗复位

return 11 ;

if(RCC_GetFlagStatus(RCC_FLAG_PINRST) == SET) //引脚复位

return 1;

if(RCC_GetFlagStatus(RCC_FLAG_LPWRRST) == SET) ?//低电平复位

return 12;

if(RCC_GetFlagStatus(RCC_FLAG_PORRST) == SET) ? //POR/PDR复位

return 3;

return ?4;

}

void Ds_GetRest(void)

{

M3Risk.ucChildRisk = Ds_ResetSelect();

// printf("reset is %drn",M3Risk.Risk_nu);

if(M3Risk.ucChildRisk ?!=1)

M3Risk.Risk_nu = 1;

else

M3Risk.Risk_nu = 0;

?}

?void Ds_GetXULIEversions(void)

{

STMFLASH_ReadByte_buf(BACK_M3DAT_ADDR_START,M3_XULIEversions,5);

g_uHardwareType = M3_XULIEversions[0];

memcpy(&g_uiProductSn,&M3_XULIEversions[1],4);

printf("g_uHardwareType is %drn",g_uHardwareType);

printf("g_uiProductSn is %drn",g_uiProductSn);

if((M3_XULIEversions[0] == 255) && (M3_XULIEversions[1] == 255) && (M3_XULIEversions[2] == 255)

&&(M3_XULIEversions[3] == 255)&&(M3_XULIEversions[4] == 255))

{

g_uHardwareType = ?HardwareType;

g_uiProductSn = ProductSn;

printf("g_uHardwareType is %drn",g_uiProductSn);

}

}

void Ds_UPDATAMCU(void)

{

IWDG_Feed();//喂狗

LED_UPdata_ON; ?

LED_ERROR_ON;//

LED_CLOUD_ON; //

LED_STATE_ON;

TIM2_Stop(); ?//关掉获取232状态

TIM4_Stop(); ?//关掉获取485状态

TIM3_Stop(); ? ? ?//停止心跳

printf("main is into upmcu_apprn");

if(UPMCUCFI_FLAG == TRUE)

{

UPDATA_MCUAPP(BACK_MCUDAT_ADDR_START); //升级机芯配置

UPMCUCFI_FLAG = FALSE;

}

? ? ? else

{

UPDATA_MCUAPP(BACK_MCUAPP_ADDR_START); //升级机芯程序

}

IWDG_Feed();//喂狗

Tim_select_Init(Tim_Thr); ? ?//3//1.8s心跳

Tim_select_Init(Tim_tw); ? // 20ms获取一次状态 232

Tim_select_Init(Tim_Fou); ?//100ms获取一次状态485

LED_STATE_OFF; ?//状态灯亮

LED_ERROR_OFF;//故障灯灭

LED_CLOUD_OFF; //云灯灭

LED_UPdata_ON; //电源指示指示灯

g_uCurrentKeyRelatedLevel ?= 0; ?//档位初始为0

Cd4094DataOutPut(work[g_uCurrentKeyRelatedLevel]); //显示0档待机 ?

printf("leve updata_mcurn");

}

void Dis_FEpos(void)

{

Dispos_tim ++;

if(Dispos_tim >= 2)

{

Dispos_tim = 0;

error_pos ++;

if(error_pos >= ba_pos)

error_pos = 0;

}

}

void Dis_FPpos(void)

{

Dispos_tim ++;

if(Dispos_tim >= 2)

{

Dispos_tim = 0;

pro_pos ++;

if(pro_pos >= ba_pos)

pro_pos = 0;

}

}

void Dis_ErrorInit(void)

{

Dis_c = 0;

Dis_e = 0;

Dispos_tim = 0;

error_pos = 0;

if(Error_value <= 9)

{

ba_pos ?= 2;

CD4094_Changeshow(error1[Error_value ][error_pos]);

Error_or_pro_lcd();

}

else

{

ba_pos = 3;

CD4094_Changeshow(error2[Error_value - 10 ][error_pos]);

Error_or_pro_lcd();

}

Dis_FEpos();

}

void Dis_PorInit(void)

{

Dis_c = 0;

Dis_e = 0;

Dispos_tim = 0;

pro_pos = 0;

ba_pos = 2;

CD4094_Changeshow(pro1[Pro_value ][pro_pos]);

Error_or_pro_lcd();

Dis_FPpos();

}

void Dis_ProProgess(void)

{

CD4094_Changeshow(pro1[Pro_value][pro_pos]);

Error_or_pro_lcd();

Dis_FPpos();

}

void Dis_ErrorProgess(void)

{

switch(ba_pos)

{

case ?2:

CD4094_Changeshow(error1[Error_value ][error_pos]);

Error_or_pro_lcd();

break;

case 3:

CD4094_Changeshow(error2[Error_value - 10][error_pos]);

Error_or_pro_lcd();

break;

}

Dis_FEpos();

}

void Ds_M3Display(void)

{

static ?SysState_S ? prestate;

static ?u8 ?pretKeyRelatedLevel = 0;

switch(Rs232Sate.eMainState)

{

case IDLE_STATE:

switch(prestate.eMainState)

{

case IDLE_STATE:

break;

default:

LED_STATE_OFF;

LED_ERROR_OFF;

Cd4094DataOutPut(work[0]); //显示0档待机

break;

}

break;

case WORKING_STATE:

switch(prestate.eMainState)

{

case ?WORKING_STATE:

if(pretKeyRelatedLevel != g_uCurrentKeyRelatedLevel )

{

Cd4094DataOutPut(work[g_uCurrentKeyRelatedLevel]);

pretKeyRelatedLevel = g_uCurrentKeyRelatedLevel;

}

break;

default:

LED_STATE_ON;

LED_ERROR_OFF;

Cd4094DataOutPut(work[g_uCurrentKeyRelatedLevel]);

pretKeyRelatedLevel = g_uCurrentKeyRelatedLevel;

break;

}

break;

case ?PRO_STATE:

#if ? (STM32_15KWCOOK ||STM32_15KWSOUP)

switch(Rs232Sate.ucChildState)

{

case NO_PAN_PRO:

switch(prestate.eMainState)

{

case PRO_STATE:

CD4094_Changeshow(work[g_uCurrentKeyRelatedLevel]);

Nopan_Pro_lcd();

break;

default:

Dis_c = 0;

Dis_p = 0;

break;

}

break;

default:

switch(prestate.eMainState)

{

case PRO_STATE:

Dis_ProProgess();

break;

default:

Dis_PorInit();

break;

}

break;

}

? #elif ?STM32_20KWCOOK ? ?

? switch(prestate.eMainState)

{

case PRO_STATE:

Dis_ProProgess();

break;

default:

Dis_PorInit();

break;

}

? #endif

? ? ? ?

break;

case ?ERROR_STATE:

switch(prestate.eMainState)

{

case ERROR_STATE:

Dis_ErrorProgess();

break;

default:

Dis_ErrorInit();

break;

}

break;

default :

break;

}

prestate = Rs232Sate;

}

#include "stm32f10x.h"

#include "System_module.h"

#include "Flash_module.h"

void MYRCC_DeInit(void)

{

? RCC->APB1RSTR = 0x00000000;//复位结束 ?

RCC->APB2RSTR = 0x00000000; ?

? RCC->AHBENR = 0x00000014; ?//睡眠模式闪存和SRAM时钟使能.其他关闭. ?

? RCC->APB2ENR = 0x00000000; //外设时钟关闭. ??

? RCC->APB1ENR = 0x00000000; ??

RCC->CR |= 0x00000001; ? ? //使能内部高速时钟HSION ?

RCC->CFGR &= 0xF8FF0000; ? //复位SW[1:0],HPRE[3:0],PPRE1[2:0],PPRE2[2:0],ADCPRE[1:0],MCO[2:0] ?

RCC->CR &= 0xFEF6FFFF; ? ? //复位HSEON,CSSON,PLLON

RCC->CR &= 0xFFFBFFFF; ? ? //复位HSEBYP ? ?

RCC->CFGR &= 0xFF80FFFF; ? //复位PLLSRC,PLLXTPRE,PLLMUL[3:0] and USBPRE?

RCC->CIR = 0x00000000; ? ? //关闭所有中断 ?

//配置向量表 ?

}

void Stm32_Clock_Init(u8 PLL)

{

unsigned char temp=0; ??

// MYRCC_DeInit(); ?//复位并配置向量表

? RCC->CR|=0x00010000; ?//外部高速时钟使能HSEON

while(!(RCC->CR>>17));//等待外部时钟就绪

RCC->CFGR=0X00000400; //APB1=DIV2;APB2=DIV1;AHB=DIV1;

PLL-=2;//抵消2个单位

RCC->CFGR|=PLL<<18; ? //设置PLL值 2~16

RCC->CFGR|=1<<16; ?//PLLSRC ON?

FLASH->ACR|=0x32; ?//FLASH 2个延时周期

RCC->CR|=0x01000000; ?//PLLON

while(!(RCC->CR>>25));//等待PLL锁定

RCC->CFGR|=0x00000002;//PLL作为系统时钟 ?

while(temp!=0x02) ? ? //等待PLL作为系统时钟设置成功

{ ??

temp=RCC->CFGR>>2;

temp&=0x03;

} ? ?

}

#define IAP_ADDR ? ? ? ?0X08000000

void IapProgramRun(void)

{

? ? u32 ? IapSpInitVal; ? ? ? ? ? //IAP程序的SP初值.

? ? u32 ?IapJumpAddr; ? ? ? ? ? ?//IAP程序的跳转地址.即,IAP程序的入口.

? ? void ? ?(*pIapFun)(void); ? ? ? //定义一个函数指针.用于指向APP程序入口.

?

? ? MYRCC_DeInit(); ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? //恢复NVIC为复位状态.使中断不再发生.

? ? IapSpInitVal = *(u32 *)IAP_ADDR; ? ? ? ? ? ? //取APP的SP初值.

? ? IapJumpAddr = *(u32 *)(IAP_ADDR + 4); ? ? ? ?//取程序入口.

? ? ?__set_MSP (IapSpInitVal); ? ? ? ? ? ? ? ? ? ? ? //设置SP.

? ? pIapFun = (void (*)(void))IapJumpAddr; ? ? ? ? ? ? ?//生成跳转函数.

? ? (*pIapFun) (); ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?//跳转.不再返回.

}

void STM32APP_Init(void)

{

MYRCC_DeInit();

NVIC_SetVectorTable (NVIC_VectTab_FLASH,RUN_M3APP_VECTABLE); //设置APP的向量表

Stm32_Clock_Init(Clock_72MHZ); ?//72mhz

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级

}

#include "stm32f10x.h"

#include "Flash_module.h"

void STMFLASH_WriteByte_buf(u32 addr,u8 *p,u16 Byte_Num)

{

u16 ?HalfWord;

u16 ?byte_nu;

? ? ??

byte_nu ?= Byte_Num%2;?

Byte_Num = Byte_Num/2; ? ?

? ? ? ?FLASH_Unlock();

? ? ? ?FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);

? ? ? ?FLASH_ErasePage(addr);

while(Byte_Num --)

? ? ? ?{ ? ??

? ? ? ? ? ? ? ?HalfWord=*(p);

? ? ? ? ? ? ? ?HalfWord|=*(p+1)<<8; ?

? ? ? ? ? ? ? ?FLASH_ProgramHalfWord(addr,HalfWord);

? ? ? ? ? ? ? ?addr += 2;

?p+=2; ?

? ? ? ? } ?

if( byte_nu>0)

{

HalfWord = *p; ?

FLASH_ProgramHalfWord(addr,HalfWord);

?} ? ?

? ? ? ?FLASH_Lock();

}

void STMFLASH_WriteHalfWord_buf(u32 addr,u16 *p,u16 Byte_Num)

{

? ? ? ?u16 HalfWord;

??

? ? ? ?FLASH_Unlock();

? ? ? ?FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);

? ? ? ?FLASH_ErasePage(addr);

? ? ? while(Byte_Num --)

? ? ? ?{

? ? ? ? ? ? ? ?HalfWord=*(p++); ??

? ? ? ? ? ? ? ?FLASH_ProgramHalfWord(addr,HalfWord);

? ? ? ? ? ? ? ?addr += 2;

? ? ? ? }

? ? ? ? FLASH_Lock();

}

void ?STMFLASH_ReadByte_buf(u32 ReadAddr,u8 *pBuffer,u16 NumToWrite)

{

u16 i;

for(i =0 ;i<NumToWrite;i++)

{

pBuffer[i] = (u8)(*(u32*)ReadAddr);

ReadAddr +=1;

}

}

void ?STMFLASH_ReadHalfWord_buf(u32 ReadAddr,u16 *pBuffer,u16 NumToWrite)

{

u16 i;

for(i =0 ;i<NumToWrite;i++)

{

pBuffer[i] = (u16)(*(u32*)ReadAddr);

ReadAddr +=2;

}

}

void STMFLASH_ERASEBANK(u32 bankaddr)

{

u16 ?i = 100;

FLASH_Unlock();

FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);

FLASH_ErasePage(bankaddr);

while(i--); ?

FLASH_Lock();

}

#ifndef ?__FASH_MODULE__

#define ?__FASH_MODULE__

#include "stm32f10x.h"

#define ? STM32_FLASH_BASE 0x08000000

#define ? STM32_FLASH_SIZE ? 512 ? // 单位k

#define ?OneKbit ?1024

#define ? PAGE_SIZE ?2048

#define ? PAGE_NU ? ?255

#define ? BOOTLOADER_ADDR_START ?0x08000000

#define ?RUN_M3APP_VECTABLE ?0x00010000

#define ?BOOTLOADER_VECTABLE ?0x0

?#define ?RUN_M3APP_ADDR_START ?0x08010000 ? ? ? ? ?// ?0x08010 000 --- 0x0802 8FFF

?#define ?RUN_M3APP_PAGE_SIZE ? ? ( PAGE_SIZE * 50 )

?#define ?RUN_M3DAT_ADDR_START ?0x08029000 ? ? ? ? ? ?//0x0802 9000---- 0X0802 B7FF

?#define ?RUN_M3DAT_PAGE_SIZE ? ? ( PAGE_SIZE * 5 )

?#define ?BACK_M3APP_ADDR_START ?0x0802b800 ? ? ? ? ?

?#define ?BACK_M3APP_PAGE_SIZE ? ? ( PAGE_SIZE * 50 )

?#define ?BACK_M3DAT_ADDR_START ? ?0x08044800 ? ? ? ? ?

?#define ?BACK_M3DAT_PAGE_SIZE ? ? ( PAGE_SIZE * 5 )

?#define ?BACK_MCUAPP_ADDR_START ?0x08047000 ? ? ? ? ?

?#define ?BACK_MCUAPP_PAGE_SIZE ? ? ( PAGE_SIZE * 50 )

?#define ?BACK_MCUDAT_ADDR_START ?0x08060000 ? ? ? ? ??

?#define ?BACK_MCUDAT_PAGE_SIZE ? ? ( PAGE_SIZE * 5 )

?#define ?ARMAPP_upstatus ? ?0x08062800

?#define ?ARMAPP_upstatus_PAGE_SIZE ? ? ( PAGE_SIZE *1)

?

?#define ?ARMCFG_upstatus ? ?0x08063000?

?#define ?ARMCFG_upstatus_PAGE_SIZE ? ? ( PAGE_SIZE *1)

#define ? PRODUCT_ID_MAX_SIZE 5 //max size of all product device?

#define ? RS485_RECE_MAX ? ? ? ( PAGE_SIZE *20)

void STMFLASH_WriteByte_buf(u32 ?,u8 *,u16 );

void STMFLASH_WriteHalfWord_buf(u32 ?,u16 *,u16 );

void ?STMFLASH_ReadByte_buf(u32,u16 );

void ?STMFLASH_ReadHalfWord_buf(u32,u16 );

void STMFLASH_ERASEBANK(u32 );

typedef ?enum RS485_UPdatetype?

{

ARMAPP,

}RS485_UPdatetype_E;?

typedef struct UpdateFilePacket_Stru

{

? ? u8 ? ucDevType; //cmd type define in UplinkCmdType_E

? ? u32 uiTotalLen; //total len of update file

? ? u32 uiLenOffset; //total len of update file

? ? int ?uinDataPackNum;

? ? u8 ? bufProductID[PRODUCT_ID_MAX_SIZE];//product NO. + SN

? ? u32 ?uiFileNameLen; //len of update file name

? ? u8 ? pFileName[60]; //update file name

? ? u8 ? ?pDataBuf[RS485_RECE_MAX]; //data of file

}UpdateFilePacket_S;

typedef struct FlashW_buf

{

u8 ? ? UPdateW_buf[ PAGE_SIZE];

u16 ? ?UPdateW_Pagenu;

u16 ? ?UPdateW_Bytenu;

}upFlashW_buf;

#endif

#include "stm32f10x.h"

#include "CRC16.h"

u16 ? GetCRC16Code( u8 ?*pCalcBuf,u32 ?nSize)

{

u32 ? ? i = 0;

u32 ? ? j = 0;

u16 ? usReturnValue = 0xFFFF;

u16 ? usNew = 0xA001;

for (i=0; i<nSize; ++i)

{

usReturnValue ^= pCalcBuf[i];

for(j=0; j<8; ++j)

{

if(usReturnValue & 0x0001)

{

usReturnValue >>= 1;

usReturnValue ^= usNew;

}

else

{

usReturnValue >>= 1;

}

}

}

return usReturnValue;

}

void ?Write_Data_toFlash(u8 *File_RECEBUF,u32 recelen,u32 FlashAddr)

{

u8 i;

u16 ?pagenu;

u16 ?Bytenu;

u16 upadte_statue[2];

u16 buf[2];

pagenu ?= ? ?recelen /PAGE_SIZE ;

Bytenu ?= ? ?recelen % PAGE_SIZE;

upadte_statue[0] = ?pagenu;

upadte_statue[1] = ?Bytenu;

printf("pagenu is %drn",pagenu);

printf("Bytenu is %drn",Bytenu);

//喂狗

IWDG_Feed();

WFlash_buf.UPdateW_Pagenu ?= ?pagenu;

? WFlash_buf.UPdateW_Bytenu ?= ? Bytenu;

STMFLASH_WriteHalfWord_buf(FlashAddr -4 ?,upadte_statue,2 );

? ? ? ?STMFLASH_ReadHalfWord_buf(FlashAddr -4,?buf,2);

printf(" read buf[0] is %drn",buf[0]);

printf(" read buf[1] is %drn",buf[1]);

#if ?1

if(pagenu > 0)

{

for(i = 0;i<pagenu;i++)

{

memcpy(WFlash_buf.UPdateW_buf,File_RECEBUF,PAGE_SIZE);

STMFLASH_WriteByte_buf(FlashAddr ?,WFlash_buf.UPdateW_buf,PAGE_SIZE);

File_RECEBUF +=PAGE_SIZE;

FlashAddr +=PAGE_SIZE;

printf("write paegnu is %drn",i);

}

}

memset(WFlash_buf.UPdateW_buf,0x00,PAGE_SIZE);

memcpy(WFlash_buf.UPdateW_buf,Bytenu);

STMFLASH_WriteByte_buf(FlashAddr ?,Bytenu);

#endif

}

Write_Data_toFlash(g_sUpdateInfo.pDataBuf,g_sUpdateInfo.uiTotalLen,BACK_MCUAPP_ADDR_START);

? ? //写上升级标志

STMFLASH_WriteByte_buf(ARMAPP_upstatus,updataM3status,strlen(updataM3status));

? ? STMFLASH_ReadByte_buf(ARMAPP_upstatus,debugupdata,strlen(updataM3status));

debugupdata[strlen(updataM3status)] = '' ;

printf("debugupdata is %srn",debugupdata);

RS485_delay();

NVIC_SetVectorTable (NVIC_VectTab_FLASH,0x0);

IapProgramRun(); ?//跳转向Bootloader

#include "stm32f10x.h"

#include "Iwdg_hard_dri.h"

//初始化独立看门狗

//prer:分频数:0~7(只有低 3 位有效!)

//分频因子=4*2^prer.但最大值只能是 256!

//rlr:重装载寄存器值:低 11 位有效.

//时间计算(大概):Tout=((4*2^prer)*rlr)/40 (ms).

//prer 4 ? rlr 625 ? 时间是1s

void IWDG_Init(u8 prer,u16 rlr)?

{

IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable); ? //①使能对寄存器 I 写操作

IWDG_SetPrescaler(prer); ? //②设置 IWDG 预分频值:设置 IWDG 预分频值

IWDG_SetReload(rlr); ? //②设置 IWDG 重装载值

IWDG_ReloadCounter(); ? //③按照 IWDG 重装载寄存器的值重装载 IWDG 计数器

IWDG_Enable(); ? //④使能 IWDG

}

//喂独立看门狗

void IWDG_Feed(void)

{ ??

IWDG_ReloadCounter();//reload ? ? ? ? ? ? ? ? ? ??

}