#define TXRX_TYPE_SYNC 0x02
#define TXRX_TYPE_CMD 0x03
#define TXRX_TYPE_DATA 0x04
+#define TXRX_TYPE_CKSM 0x05
#define CMD_SUCCESS "0\r\n"
#define INVALID_COMMAND "1\r\n"
term.c_lflag&=~(ICANON|ECHO|ECHOE|ISIG);
- // input options -> disable flow control
+ // input options -> enable flow control
- term.c_iflag&=~(IXON|IXOFF|IXANY);
+ //term.c_iflag&=~(IXON|IXOFF|IXANY|INLCR|ICRNL);
+ term.c_iflag&=~(INLCR|ICRNL);
+ term.c_iflag|=(IXON|IXOFF|IXANY);
- // more control options -> timeout
+ // 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;
tcsetattr(lpc->sfd,TCSANOW,&term);
len-=ret;
cnt+=ret;
}
- if(lpc->info&VERBOSE)
- printf(" (%d)\n",cnt);
+ if(lpc->info&VERBOSE) {
+ printf(" | ");
+ for(i=0;i<cnt;i++)
+ printf("%02x ",buf[i]);
+ printf("| (%d)\n",cnt);
+ }
/* cut the echo if not of type auto baud */
if(type!=TXRX_TYPE_BAUD) {
- while(cnt) {
+ while(cnt>0) {
ret=read(lpc->sfd,buf,cnt);
if(ret<0) {
perror("txrx echo cut");
return ret;
}
+ if(type==TXRX_TYPE_CKSM) {
+ printf(" cksm resp: ");
+ for(i=0;i<ret;i++)
+ printf("%02x ",buf[i]);
+ printf("\n");
+ }
+ for(i=0;i<ret;i++) {
+ if(buf[i]==0x13)
+ printf("STOP !!!\n");
+ }
cnt-=ret;
}
}
/* return here if type is data */
- if(type==TXRX_TYPE_DATA)
+ if(type==TXRX_TYPE_DATA) {
+ ret=1;
+ while(ret) {
+ ret=read(lpc->sfd,buf,BUFSIZE);
+ for(i=0;i<ret;i++) {
+ if(buf[i]!='\n') {
+ printf("FATAL!!!\n");
+ int j;
+ for(j=0;j<ret;j++) printf("%02x ",buf[j]);
+ printf("\n");
+ }
+ }
+ }
return cnt;
+ }
+
+ /* wait, if cksum has to be verified */
+
+ //if(type==TXRX_TYPE_CKSM)
+ // sleep(3);
/* read */
printf(" << ");
ret=1;
cnt=0;
- while(ret>0) {
+ while(ret) {
ret=read(lpc->sfd,buf+cnt,BUFSIZE-cnt);
if(ret<0) {
perror("txrx read");
buf[cnt+i]:'.');
cnt+=ret;
}
- if(lpc->info&VERBOSE)
- printf(" (%d)\n",cnt);
+ if(lpc->info&VERBOSE) {
+ printf(" | ");
+ for(i=0;i<cnt;i++)
+ printf("%02x ",buf[i]);
+ printf("| (%d)\n",cnt);
+ }
buf[cnt]='\0';
- /* check/strip return code if type is data */
+ /* check/strip return code if type is cmd */
if(type==TXRX_TYPE_CMD) {
ret=strlen(CMD_SUCCESS);
/* auto baud sequence */
buf[0]='?';
txrx(lpc,buf,1,TXRX_TYPE_BAUD);
- if(strncmp(buf,"Synchronized\r\n",14)) {
+ if(strncmp(buf,"Synchronized",12)) {
printf("auto baud detection failed\n");
return -1;
}
return 0;
}
-int uuencode(u8 *in,char *out) {
+int unlock_go(t_lpc *lpc) {
+
+ char buf[BUFSIZE];
+ int ret;
+
+ memcpy(buf,"U 23130\r\n",9);
+ ret=txrx(lpc,buf,9,TXRX_TYPE_CMD);
+
+ return ret;
+}
+
+int go(t_lpc *lpc) {
+
+ char buf[BUFSIZE];
+ int ret,len;
+
+ snprintf(buf,BUFSIZE,"G %d A\r\n",lpc->roff);
+ len=strlen(buf);
+ ret=txrx(lpc,buf,ret,TXRX_TYPE_CMD);
+
+ return ret;
+}
+
+int uuencode(char *in,char *out) {
+
+ int i;
out[0]=0x20+((in[0]>>2)&0x3f);
out[1]=0x20+(((in[0]<<4)|(in[1]>>4))&0x3f);
out[2]=0x20+(((in[1]<<2)|(in[2]>>6))&0x3f);
out[3]=0x20+(in[2]&0x3f);
+ printf(" enc: ");
+ for(i=0;i<3;i++)
+ printf("%02x ",in[i]);
+ printf("-> ");
+ for(i=0;i<4;i++)
+ printf("%02x ",out[i]);
+ printf("\n");
+
return 0;
}
-int write_to_ram(t_lpc *lpc,u8 *buf,u32 addr,int len) {
+int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
int lcount;
u32 checksum;
/* prepare write command */
if(lpc->info&VERBOSE)
- printf("writing %02x bytes to %08x\n",len,addr);
+ printf("writing 0x%02x bytes to 0x%08x\n",len,addr);
snprintf(txrxbuf,BUFSIZE,"W %d %d\r\n",addr,len);
slen=strlen(txrxbuf);
/* send command and check return code */
txrx(lpc,txrxbuf,slen,TXRX_TYPE_CMD);
- if(strncmp(txrxbuf,"OK\r\n",4)) {
- printf("ram write: write command failed\n");
- return -1;
- }
+ //if(strncmp(txrxbuf,"OK\r\n",4)) {
+ // printf("ram write: write command failed\n");
+ // return -1;
+ //}
/* send data */
lcount=0;
/* uuencode / prepare data bytes */
uuencode(buf+bcnt,txrxbuf);
- txrxbuf[4]='\0';
- txrxbuf[5]='\0';
+ txrxbuf[4]='\r';
+ txrxbuf[5]='\n';
/* checksum */
- checksum+=(buf[0]+buf[1]+buf[2]);
+ checksum+=(buf[bcnt]+buf[bcnt+1]+buf[bcnt+2]);
+ printf("----> %d %d\n",checksum,bcnt);
/* send a data line */
txrx(lpc,txrxbuf,6,TXRX_TYPE_DATA);
/* checksum */
if((!(lcount%20))|(bcnt==nlen)) {
/* send checksum */
- snprintf(txrxbuf,BUFSIZE,"%d\r\n",checksum);
+ snprintf(txrxbuf,BUFSIZE,"%d\r\n",checksum%0x100);
slen=strlen(txrxbuf);
- txrx(lpc,txrxbuf,slen,TXRX_TYPE_CMD);
+ txrx(lpc,txrxbuf,slen,TXRX_TYPE_CKSM);
if(!strncmp(txrxbuf,"RESEND\r\n",8)) {
printf("ram write: resending ...\n");
bcnt-=count;
int firmware_to_ram(t_lpc *lpc) {
char buf[BUFSIZE];
- u8 data[BUFSIZE];
- u32 addr,len,type,val;
- u8 cksum;
- int ret,i;
+ u32 addr,len,type;
+ int ret;
/* read a line */
while(ret) {
return -1;
}
/* checksum */
- cksum=0;
- for(i=0;i<len;i++) {
- sscanf(buf+2*i,"%02x",&val);
- data[i]=val;
- cksum+=data[i];
- }
ret=read(lpc->fwfd,buf,2);
- sscanf(buf,"%02x",&val);
- if(val+cksum!=0x100) {
- printf("fw to ram: wrong checksum\n");
- return -1;
- }
/* act according to type */
switch(type) {
case 0x03:
/* get cs and ip */
break;
case 0x00:
- write_to_ram(lpc,data,addr,len);
+ write_to_ram(lpc,buf,addr,len);
break;
default:
printf("fw to ram: unknown type %02x\n",type);
read_bcv(&lpc);
printf("boot code version: %02x %02x\n",lpc.bcv[0],lpc.bcv[1]);
- // to be continued ... (parsing fw file and poking it to ram)
+ /* parse intel hex file and write to ram */
firmware_to_ram(&lpc);
+ /* unlock go cmd */
+ unlock_go(&lpc);
+
+ /* go! */
+ go(&lpc);
+
end:
close(lpc.sfd);
close(lpc.fwfd);
projects / my-code / arm.git / commitdiff