baudrate 384000, no return check for go ccmd, parse 04 record

diff --git a/betty/lpcload.c b/betty/lpcload.c
index 80af804..bd69fbe 100644 (file)
--- a/betty/lpcload.c
+++ b/betty/lpcload.c
@@ -19,11 +19,12 @@
 #define VERBOSE                        (1<<0)
 #define FIRMWARE               (1<<1)
 
+#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"
@@ -58,7 +59,6 @@ typedef struct s_lpc {
        char fwfile[128];       /* firmware file */
        u8 info;                /* info/mode */
        char freq[8];           /* frequency */
-       u32 hoff;               /* start addr of ihex file */
        u32 roff;               /* ram offset of uc */
 } t_lpc;
 
@@ -93,8 +93,8 @@ int open_serial_device(t_lpc *lpc) {
 
        // input/output baudrate
 
-       cfsetispeed(&term,B9600);
-       cfsetospeed(&term,B9600);
+       cfsetispeed(&term,B38400);
+       cfsetospeed(&term,B38400);
 
        // control options -> 8n1
 
@@ -120,7 +120,7 @@ int open_serial_device(t_lpc *lpc) {
        // more control options -> timeout / flow control
        
        term.c_cc[VMIN]=0;
-       term.c_cc[VTIME]=40;    // 4 second timeout
+       term.c_cc[VTIME]=10;    // 1 second timeout
        term.c_cc[VSTART]=0x11;
        term.c_cc[VSTOP]=0x13;
 
@@ -131,9 +131,6 @@ int open_serial_device(t_lpc *lpc) {
 
 int open_firmware(t_lpc *lpc) {
 
-       int ret;
-       char buf[BUFSIZE];
-
        /* open firmware file */
 
        lpc->fwfd=open(lpc->fwfile,O_RDONLY);
@@ -141,16 +138,6 @@ int open_firmware(t_lpc *lpc) {
        if(lpc->fwfd<0)
                perror("fw open");
 
-       /* read hex file offset */
-
-       ret=read(lpc->fwfd,buf,7);
-       if(buf[0]!=':') {
-               printf("fw open: not an intel hex file?\n");
-               return -1;
-       }
-       sscanf(buf+3,"%04x",&(lpc->hoff));
-       lseek(lpc->fwfd,0,SEEK_SET);
-
        return lpc->fwfd;
 }
 
@@ -251,6 +238,11 @@ int txrx(t_lpc *lpc,char *buf,int len,u8 type) {
        }
        buf[cnt+1]='\0';
 
+       /* return if type is go */
+
+       if(type==TXRX_TYPE_GO)
+               return 0;
+
        /* check/strip return code if type is cmd */
 
        if(type==TXRX_TYPE_CMD) {
@@ -321,7 +313,7 @@ int go(t_lpc *lpc) {
 
        snprintf(buf,BUFSIZE,"G %d A\r\n",lpc->roff);
        len=strlen(buf);
-       ret=txrx(lpc,buf,len,TXRX_TYPE_CMD);
+       ret=txrx(lpc,buf,len,TXRX_TYPE_GO);
 
        return ret;
 }
@@ -361,7 +353,7 @@ int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
        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)
@@ -479,10 +471,15 @@ int firmware_to_ram(t_lpc *lpc) {
                        //      /* 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 0x01:
-                               write_to_ram(lpc,buf,addr,len);
+                       case 0x04:
+                               lpc->roff=((buf[0]<<28)|(buf[1]<<24));
+                               lpc->roff|=((buf[2]<<20)|(buf[3]<<16));
                                break;
                        default:
                                printf("fw to ram: unknown type %02x\n",type);
@@ -497,7 +494,6 @@ int main(int argc,char **argv) {
 
        t_lpc lpc;
        int i;
-       u8 buf[BUFSIZE];
        int ret;
 
        /*
@@ -569,29 +565,6 @@ int main(int argc,char **argv) {
        printf("go ...\n");
        ret=go(&lpc);
 
-       /* tell the user that the error might be due to the jump */
-       printf("\n\n");
-       if(ret<0)
-               printf("the above error might be due to the jump!\n\n");
-
-       /* query user for serial port listening */
-       printf("continue listening on serial port? (ctrl+c to quit) [y|n]: ");
-       buf[0]=getchar();
-       printf("\n");
-
-       if(buf[0]!='y')
-               goto end;
-
-       /* continue lsitening on serial port */
-       ret=1;
-       while(ret) {
-               ret=read(lpc.sfd,buf,BUFSIZE);
-               printf("\rread %d bytes: ",ret);
-               for(i=0;i<ret;i++)
-                       printf("%02x ",buf[i]);
-               printf("\n");
-       }
-
 end:
        close(lpc.sfd);
        close(lpc.fwfd);