#define VERBOSE (1<<0)
#define FIRMWARE (1<<1)
+#define BANK0 (1<<2)
+#define BANK2 (1<<3)
+#define BL (1<<4)
+#define BANK0_ADDR 0x80000000
+#define BANK2_ADDR 0x82000000
+#define BANK_SIZE 0x00100000
+#define BL_ADDR 0x7fffe000
+#define BL_SIZE 0x00002000
+
+#define CMD_READ 'R' // stay compatible to fwflash!
+
+#define TXRX_TYPE_SYNC 0x00
+#define TXRX_TYPE_CKSM 0x00
#define TXRX_TYPE_BAUD 0x01
-#define TXRX_TYPE_SYNC 0x02
-#define TXRX_TYPE_CMD 0x03
-#define TXRX_TYPE_DATA 0x04
-#define TXRX_TYPE_CKSM 0x05
+#define TXRX_TYPE_CMD 0x02
+#define TXRX_TYPE_DATA 0x03
+#define TXRX_TYPE_GO 0x04
#define CMD_SUCCESS "0\r\n"
#define INVALID_COMMAND "1\r\n"
char fwfile[128]; /* firmware file */
u8 info; /* info/mode */
char freq[8]; /* frequency */
- u32 hoff; /* start addr of ihex file */
+ char bank0[127]; /* flash dump bank0 */
+ int b0fd; /* dumpfile fd bank0 */
+ char bank2[127]; /* flash dump bank2 */
+ int b2fd; /* dumpfile fd bank0 */
+ char bl[127]; /* flash dump bootloader */
+ int blfd; /* dumpfile fd bootloader */
u32 roff; /* ram offset of uc */
+ u32 jaddr; /* addr for the jump */
} t_lpc;
void usage(void) {
printf("possible argv:\n");
- printf(" -d <serial device>\n");
- printf(" -f <firmware>\n");
- printf(" -c <crystal freq>\n");
- printf(" -r <ram offset>\n");
+ printf(" -d <serial device>\n");
+ printf(" -f <firmware>\n");
+ printf(" -c <crystal freq>\n");
+ printf(" -Dx <filename>\n");
+ printf(" x=0: bank0, x=2: bank2, x=b: bootloader\n");
printf(" -v\n");
}
// input/output baudrate
- cfsetispeed(&term,B9600);
- cfsetospeed(&term,B9600);
+ cfsetispeed(&term,B38400);
+ cfsetospeed(&term,B38400);
// control options -> 8n1
// input options -> enable flow control
- //term.c_iflag&=~(IXON|IXOFF|IXANY|INLCR|ICRNL);
term.c_iflag&=~(INLCR|ICRNL|IXANY);
term.c_iflag|=(IXON|IXOFF);
+
+ // output options
+
+ term.c_oflag=0;
// more control options -> timeout / flow control
term.c_cc[VMIN]=0;
- term.c_cc[VTIME]=10; // 1 second timeout
- term.c_cc[VSTART]=0x11;
- term.c_cc[VSTOP]=0x13;
+ term.c_cc[VTIME]=20; // 2 seconds timeout
+ //term.c_cc[VSTART]=0x11;
+ //term.c_cc[VSTOP]=0x13;
tcsetattr(lpc->sfd,TCSANOW,&term);
return lpc->sfd;
}
-int open_firmware(t_lpc *lpc) {
+int reconfig_serial_device(t_lpc *lpc) {
+ struct termios term;
int ret;
- char buf[BUFSIZE];
+
+ /* reconfigure the serial device for our lousy loader tool */
+
+ tcgetattr(lpc->sfd,&term);
+
+ // disable flow control
+
+ term.c_iflag&=~(IXON|IXOFF|IXANY|INLCR|ICRNL);
+
+ // change baudrate
+
+ cfsetispeed(&term,B115200);
+ cfsetospeed(&term,B115200);
+
+ ret=tcsetattr(lpc->sfd,TCSANOW,&term);
+
+ return ret;
+}
+
+int open_firmware(t_lpc *lpc) {
/* open firmware file */
if(lpc->fwfd<0)
perror("fw open");
- /* read hex file offset */
+ return lpc->fwfd;
+}
- ret=read(lpc->fwfd,buf,7);
- if(buf[0]!=':') {
- printf("fw open: not an intel hex file?\n");
- return -1;
+int open_dumpfiles(t_lpc *lpc) {
+
+ /* open dumpfiles */
+
+ if(lpc->info&BANK0) {
+ lpc->b0fd=open(lpc->bank0,O_WRONLY|O_CREAT);
+ if(lpc->b0fd<0) {
+ perror("bank0 dump file open");
+ return lpc->b0fd;
+ }
}
- sscanf(buf+3,"%04x",&(lpc->hoff));
- lseek(lpc->fwfd,0,SEEK_SET);
- return lpc->fwfd;
-}
+ if(lpc->info&BANK2) {
+ lpc->b2fd=open(lpc->bank2,O_WRONLY|O_CREAT);
+ if(lpc->b2fd<0) {
+ perror("bank2 dump file open");
+ return lpc->b2fd;
+ }
+ }
+ if(lpc->info&BL) {
+ lpc->blfd=open(lpc->bl,O_WRONLY|O_CREAT);
+ if(lpc->blfd<0) {
+ perror("bootloader dump file open");
+ return lpc->blfd;
+ }
+ }
+
+ return 0;
+
+}
int txrx(t_lpc *lpc,char *buf,int len,u8 type) {
int ret,cnt;
printf("| (%d)\n",cnt);
}
+
+
/* cut the echo if not of type auto baud */
if(type!=TXRX_TYPE_BAUD) {
}
}
+ /* return if type is go */
+
+ if(type==TXRX_TYPE_GO)
+ return cnt;
+
/* return here if type is data */
if(type==TXRX_TYPE_DATA)
char buf[BUFSIZE];
int ret,len;
- snprintf(buf,BUFSIZE,"G %d A\r\n",lpc->roff);
+ snprintf(buf,BUFSIZE,"G %d A\r\n",lpc->jaddr);
len=strlen(buf);
- ret=txrx(lpc,buf,len,TXRX_TYPE_CMD);
+ ret=txrx(lpc,buf,len,TXRX_TYPE_GO);
return ret;
}
for(i=len;i<nlen;i++) buf[i]=0;
/* prepare addr */
- addr+=(lpc->roff-lpc->hoff);
+ addr+=lpc->roff;
/* prepare write command */
if(lpc->info&VERBOSE)
/* read len */
ret=read(lpc->fwfd,buf,2);
sscanf(buf,"%02x",&len);
- if(len%4) {
- printf("fw to ram: len not a multiple of 4\n");
- return -1;
- }
/* read addr */
ret=read(lpc->fwfd,buf,4);
sscanf(buf,"%04x",&addr);
}
/* act according to type */
switch(type) {
- case 0x03:
- /* get cs and ip */
- break;
+ //case 0x03:
+ // /* get cs and ip */
+ // break;
case 0x00:
+ if(len%4) {
+ printf("fw to ram: invalid len\n");
+ return -1;
+ }
write_to_ram(lpc,buf,addr,len);
break;
+ case 0x04:
+ lpc->roff=((buf[0]<<24)|(buf[1]<<16));
+ break;
+ case 0x05:
+ lpc->jaddr=((buf[0]<<24)|(buf[1]<<16));
+ lpc->jaddr|=((buf[2]<<8)|buf[3]);
+ break;
default:
printf("fw to ram: unknown type %02x\n",type);
return -1;
return 0;
}
+int lpc_txbuf_flush(t_lpc *lpc) {
+
+ int i,ret;
+ u8 buf[16];
+
+ ret=1;
+ printf("flushing lpc tx buffer: ");
+ while(ret) {
+ ret=read(lpc->sfd,buf,16);
+ for(i=0;i<ret;i++)
+ printf("%02x ",buf[i]);
+ }
+ printf("\n");
+
+ return 0;
+}
+
+int dump_files(int sfd,int dfd,u32 addr,u32 len) {
+
+ int ret;
+ int size;
+ int cnt;
+ int i;
+ u8 buf[16];
+
+ printf("dumping content (addr=0x%08x, len=0x%08x) ...\n",addr,len);
+
+ /* send cmd */
+ size=1+4+4;
+ cnt=0;
+ buf[0]=CMD_READ;
+ buf[1]=(addr>>24)&0xff;
+ buf[2]=(addr>>16)&0xff;
+ buf[3]=(addr>>8)&0xff;
+ buf[4]=addr&0xff;
+ buf[5]=(len>>24)&0xff;
+ buf[6]=(len>>16)&0xff;
+ buf[7]=(len>>8)&0xff;
+ buf[8]=len&0xff;
+ printf(" sending cmd: ");
+ while(size) {
+ ret=write(sfd,buf+cnt,size);
+ for(i=cnt;i<cnt+ret;i++)
+ printf("%02x ",buf[i]);
+ if(ret<0) {
+ perror("dump file: send cmd ");
+ return ret;
+ }
+ size-=ret;
+ cnt+=ret;
+ }
+ printf("\n");
+
+ /* receive data and dump it to file */
+ ret=1;
+ cnt=0;
+ printf(" receiving data ...\n");
+ while(ret) {
+ ret=read(sfd,buf,16);
+ if(ret<0) {
+ perror("dump file: read data");
+ return ret;
+ }
+ size=ret;
+ cnt=0;
+ while(size) {
+ ret=write(dfd,buf+cnt,size-cnt);
+ if(ret<0) {
+ perror("dump file: write data");
+ return ret;
+ }
+ cnt+=ret;
+ size-=ret;
+ }
+ }
+
+ return 0;
+}
+
int main(int argc,char **argv) {
t_lpc lpc;
int i;
+ int ret;
/*
* initial ...
memset(&lpc,0,sizeof(t_lpc));
strncpy(lpc.freq,CRYSTFREQ,7);
lpc.roff=RAMOFFSET;
+ lpc.jaddr=RAMOFFSET;
/* parse argv */
case 'c':
strncpy(lpc.freq,argv[++i],7);
break;
+ case 'D':
+ if(argv[i][2]=='0') {
+ lpc.info|=BANK0;
+ strncpy(lpc.bank0,argv[++i],127);
+ break;
+ }
+ else if(argv[i][2]=='2') {
+ lpc.info|=BANK2;
+ strncpy(lpc.bank2,argv[++i],127);
+ break;
+ }
+ else if(argv[i][2]=='b') {
+ lpc.info|=BL;
+ strncpy(lpc.bl,argv[++i],127);
+ break;
+ }
+ else {
+ usage();
+ return -1;
+ }
+
default:
usage();
return -1;
if(open_serial_device(&lpc)<0)
goto end;
- /* open firmware file */
- if(open_firmware(&lpc)<0)
- goto end;
-
/* boot loader init */
printf("boot loader init ...\n");
if(bl_init(&lpc)<0)
return -1;
+ /* quit if there is no hex file to process */
+ if(!(lpc.info&FIRMWARE)) {
+ printf("no firmware -> aborting\n");
+ goto end;
+ }
+
+ /* open firmware file */
+ if(open_firmware(&lpc)<0)
+ goto end;
+
+ /* open dump files */
+ if(open_dumpfiles(&lpc)<0)
+ goto end;
+
/* parse intel hex file and write to ram */
printf("write firmware to ram ...\n");
firmware_to_ram(&lpc);
/* go! */
printf("go ...\n");
- go(&lpc);
- printf("\n");
+ ret=go(&lpc);
+
+ /* flush the lpc2220 tx buf */
+ lpc_txbuf_flush(&lpc);
+
+ /* reconfigure the serial port */
+ if(reconfig_serial_device(&lpc)<0)
+ goto end;
+
+ /* download flash/bootloader content */
+ if(lpc.info&BANK0)
+ dump_files(lpc.sfd,lpc.b0fd,BANK0_ADDR,BANK_SIZE);
+ if(lpc.info&BANK2)
+ dump_files(lpc.sfd,lpc.b2fd,BANK2_ADDR,BANK_SIZE);
+ if(lpc.info&BL)
+ dump_files(lpc.sfd,lpc.blfd,BL_ADDR,BL_SIZE);
end:
- close(lpc.sfd);
- close(lpc.fwfd);
+ if(lpc.sfd)
+ close(lpc.sfd);
+ if(lpc.fwfd)
+ close(lpc.fwfd);
+ if(lpc.b0fd)
+ close(lpc.b0fd);
+ if(lpc.b2fd)
+ close(lpc.b2fd);
+ if(lpc.blfd)
+ close(lpc.blfd);
return 0;
}
projects / my-code / arm.git / blobdiff