想请教各路大神，关于官方提供的ISP代码中，我进入APROM后，While的循环只跑一次，就回到程序入口了，是怎么回呢？
配置中，看门狗已经关闭。
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#include
#include "N76E003.h"
#include "Typedef.h"
#include "Define.h"
#include "SFR_Macro.h"
#include "UART0_transfer.h"
#include "Func
tion_define.h"
#include "ISP_USER.h"
sfr RCTRIM0 = 0x84;
sfr RCTRIM1 = 0x85;
unsigned char hircmap0,hircmap1;
unsigned int trimvalue16bit;
unsigned char temp0;
unsigned char idata temp1 _at_ 0x90;
unsigned char xdata temp2;
unsigned char PID_highB,PID_lowB,CONF0,CONF1,CONF2,CONF4;
unsigned char recv_CONF0,recv_CONF1,recv_CONF2,recv_CONF4;
/*user define*/
unsigned char countx =0;
void READ_ID_CONFIG(void)
{
set_IAPEN;
IAPCN = BYTE_READ_ID;
IAPAL = 0x00;
IAPAH = 0x00;
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0;
PID_lowB = IAPFD;
IAPAL = 0x01;
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0;
PID_highB = IAPFD;
IAPCN = BYTE_READ_CONFIG;
IAPAL = 0x00;
IAPAH = 0x00;
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0;
CONF0 = IAPFD;
IAPAL = 0x01;
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0;
CONF1 = IAPFD;
IAPAL = 0x02;
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0;
CONF2 = IAPFD;
IAPAL = 0x04;
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0;
CONF4 = IAPFD;
clr_IAPEN;
}
void Package_checksum(void)
{
g_checksum=0;
for(count=0;count<64;count++)
{
g_checksum =g_checksum+ uart_rcvbuf[count];
}
uart_txbuf[0]=g_checksum&0xff;
uart_txbuf[1]=(g_checksum>>8)&0xff;
uart_txbuf[4]=uart_rcvbuf[4]+1;
uart_txbuf[5]=uart_rcvbuf[5];
if(uart_txbuf[4]==0x00)
uart_txbuf[5]++;
}
void MODIFY_HIRC_16588(void)
{
if ((PCON|CLR_BIT4)==0xFF)
{
set_IAPEN;
IAPAL = 0x30;
IAPAH = 0x00;
IAPCN = READ_UID;
set_IAPGO;
hircmap0 = IAPFD;
IAPAL = 0x31;
IAPAH = 0x00;
set_IAPGO;
hircmap1 = IAPFD;
clr_IAPEN;
hircmap1 = hircmap1&0x01;
trimvalue16bit = ((hircmap0<<1)+(hircmap1&0x01));
trimvalue16bit = trimvalue16bit - 15;
hircmap1 = trimvalue16bit&0x01;
hircmap0 = trimvalue16bit>>1;
set_SFRPAGE;
TA=0XAA;
TA=0X55;
RCTRIM0 = hircmap0;
TA=0XAA;
TA=0X55;
RCTRIM1 = hircmap1;
PCON&=CLR_BIT4;
}
}
/************************************************************************************************************
* Main function
************************************************************************************************************/
void main (void)
{
//initial GPIO for quasi mode.
// P0M1 = 0x00;
// P0M2 = 0x00;
// P1M1 = 0x00;
// P1M2 = 0x00;
// P2M1 = 0x00;
// P2M2 = 0x00;
// P3M1 = 0x00;
// P3M2 = 0x00;
MODIFY_HIRC_16588();
//uart initial
READ_ID_CONFIG();
UART0_ini_115200();
TM0_ini();
g_timer0Over=0;
g_timer0Counter=5000;
g_progarmflag=0;
while(1)
{
if(bUartDataReady == TRUE)
{
EA=0; //DISABLE ALL INTERRUPT
if(g_progarmflag==1)
{
for(count=8;count<64;count++)
{
IAPCN = BYTE_PROGRAM_AP; //program byte
IAPAL = flash_address&0xff;
IAPAH = (flash_address>>8)&0xff;
IAPFD=uart_rcvbuf[count];
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0 ;
IAPCN = BYTE_READ_AP; //program byte verify
TA=0xAA; //trigger IAP
TA=0x55;
IAPTRG |= SET_BIT0 ;
if(IAPFD!=uart_rcvbuf[count])
{
while(1);
}
if (CHPCON==0x43) //if error flag set, program error stop ISP
{
while(1);
}
g_totalchecksum=g_totalchecksum+uart_rcvbuf[count];
flash_address++;
if(flash_address==AP_size)
{
g_progarmflag=0;
goto END_2;
}
}
END_2:
Package_checksum();
uart_txbuf[8]=g_totalchecksum&0xff;
uart_txbuf[9]=(g_totalchecksum>>8)&0xff;
Send_64byte_To_UART0();
}
switch(uart_rcvbuf[0])
{
case CMD_CONNECT:
case CMD_SYNC_PACKNO:
{
Package_checksum();
Send_64byte_To_UART0();
g_timer0Counter=0; //clear timer 0 for no reset
g_timer0Over=0;
break;
}
case CMD_GET_FWVER:
{
Package_checksum();
uart_txbuf[8]=FW_VERSION;
Send_64byte_To_UART0();
break;
}
case CMD_RUN_APROM:
{
goto _APROM;
break;
}
//please tool must define devices value
case CMD_GET_DEVICEID:
{
Package_checksum();
uart_txbuf[8]=PID_lowB;
uart_txbuf[9]=PID_highB;
uart_txbuf[10]=0x00;
uart_txbuf[11]=0x00;
Send_64byte_To_UART0();
break;
}
case CMD_ERASE_ALL:
{
set_IAPEN;
set_APUEN;
IAPFD = 0xFF; //Erase must set IAPFD = 0xFF
IAPCN = PAGE_ERASE_AP;
for(flash_address=0x0000;flash_address>8)&0xff;
IAPFD=uart_rcvbuf[count];
//trigger IAP
TA=0xAA;
TA=0x55;
IAPTRG |= SET_BIT0 ;
IAPCN = BYTE_READ_AP; //program byte verify
//trigger IAP
TA=0xAA;
TA=0x55;
IAPTRG |= SET_BIT0 ;
if(IAPFD!=uart_rcvbuf[count])
while(1);
if (CHPCON==0x43) //if error flag set, program error stop ISP
while(1);
g_totalchecksum=g_totalchecksum+uart_rcvbuf[count];
flash_address++;
if(flash_address==AP_size)
{
g_progarmflag=0;
goto END_1;
}
}
END_1:
Package_checksum();
uart_txbuf[8]=g_totalchecksum&0xff;
uart_txbuf[9]=(g_totalchecksum>>8)&0xff;
Send_64byte_To_UART0();
break;
}
}
bUartDataReady = FALSE;
bufhead = 0;
EA=1;
}
//For connect timer out
if(g_timer0Over==1)
{
goto _APROM;
}
//for uart time out or buffer error
if(g_timer1Over==1)
{
if((bufhead<64)&&(bufhead>0)||(bufhead>64))
{
bufhead=0;
}
}
}
_APROM:
TA = 0xAA;
TA = 0x55;
CHPCON = 0x00; //set boot from AP
TA = 0xAA;
TA = 0x55;
CHPCON = 0x80; //software reset enable
/* Trap the CPU */
P00_Quasi_Mode;
while(1)
{
set_P00;
clr_P00;
}
}
举报
