cfsetispeed(&term,B115200);
cfsetospeed(&term,B115200);
+ // timeouts
+
+ term.c_cc[VMIN]=0;
+ term.c_cc[VTIME]=100; // 10 seconds timeout
+
ret=tcsetattr(lpc->sfd,TCSANOW,&term);
return ret;
send[1+i+as]=(len>>((ls-1-i)*8))&0xff;
cnt=0;
- printf(" sending cmd: ");
while(size) {
ret=write(sfd,send+cnt,size);
if(ret<0) {
perror("dump file: send cmd ");
return ret;
}
- for(i=cnt;i<cnt+ret;i++)
- printf("%02x ",send[i]);
size-=ret;
cnt+=ret;
}
- printf("\n");
return 0;
}
-int write_to_flash(t_lpc *lpc,char *buf,u32 addr,int len) {
+int write_to_flash(t_lpc *lpc,u8 *buf,u32 addr,int len) {
- int cnt,size,ret;
+ int cnt,ret;
+ u8 cksml,cksmr;
+ u8 check;
+ int i;
/* send cmd */
- send_cmd(lpc->sfd,addr,len,CMD_WRITE);
+ send_cmd(lpc->sfd,addr+lpc->roff,len,CMD_WRITE);
/* transfer data */
+ cnt=0;
+ cksml=0;
while(len) {
- size=2;
- while(size) {
- ret=write(lpc->sfd,buf+cnt,2);
- if(ret<0) {
- perror("transmit flash content");
- return ret;
+ for(i=0;i<2;i++) {
+ while(1) {
+ ret=write(lpc->sfd,buf+cnt+i,1);
+ if(ret<0) {
+ perror("transmit flash content (w)");
+ return ret;
+ }
+ if(ret==1)
+ break;
}
- size-=ret;
+ while(1) {
+ ret=read(lpc->sfd,&check,1);
+ if(ret<0) {
+ perror("transmit flash content (r)");
+ return ret;
+ }
+ if(ret==1)
+ break;
+ }
+ if(buf[cnt+i]!=check)
+ printf("FATAL: write to flash: wrong transfer\n");
}
+ cksml+=buf[cnt];
+ cksml+=buf[cnt+1];
cnt+=2;
+ len-=2;
+ }
+
+ /* check ack */
+ while(1) {
+ ret=read(lpc->sfd,&cksmr,1);
+ if(ret<0) {
+ perror("write to flash: read cksm");
+ return ret;
+ }
+ if(ret==1) break;
+ }
+ if(cksml!=cksmr) {
+ printf("FATAL: wrong checksum or failure in flash write!\n");
+ if(cksml+1==cksmr)
+ printf(" -> most probably due to flash write!");
+ else
+ printf(" -> most probably due to failure in transfer!");
}
return 0;
if(memtype==RAM)
write_to_ram(lpc,buf,addr,len);
else
- write_to_flash(lpc,buf,addr,len);
+ write_to_flash(lpc,(u8 *)buf,addr,len);
break;
case 0x04:
lpc->roff=((buf[0]<<24)|(buf[1]<<16));
/* write a firmware to the lpc flash */
if(lpc.info&FLASHFW) {
- send_cmd(lpc.sfd,0,0,CMD_CHIP_ERASE);
+ printf("writing firmware to flash ...\n");
+ send_cmd(lpc.sfd,0,'0',CMD_CHIP_ERASE);
lpc.roff=BANK0_ADDR;
firmware_to_mem(&lpc,FLASH);
}