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Firwmare updater for the Einsy external flash memory,

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to be used as a storage for localization strings.

Hacked into the avrdude Arduino STK500 (not STK500v2) protocol.
This commit is contained in:
bubnikv 2018-06-14 15:03:16 +02:00
parent 5414f7379d
commit 7863412687
4 changed files with 147 additions and 57 deletions
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51
xs/src/avrdude/arduino.c
View file

@ -102,6 +102,57 @@ static int arduino_open(PROGRAMMER * pgm, char * port)
*/
stk500_drain(pgm, 0);
{
//FIXME initialization sequence for programming the external FLASH.
const char entry_magic_send [] = "start\n";
const char entry_magic_receive[] = "w25x20cl_enter\n";
const char entry_magic_cfm [] = "w25x20cl_cfm\n";
const char *entry_magic_ptr = entry_magic_send;
struct timeval tv;
double tstart, tnow;
char c;
gettimeofday(&tv, NULL);
tstart = tv.tv_sec;
while (*entry_magic_ptr != 0) {
if (serial_recv(&pgm->fd, &c, 1) < 0)
goto timedout;
printf("Received: %c (%d)\n", c, (int)c);
if (c != *entry_magic_ptr ++) {
avrdude_message(MSG_INFO, "%s: stk500v2_recv(): MK3 printer emited incorrect start code\n", progname);
return -1;
}
gettimeofday(&tv, NULL);
tnow = tv.tv_sec;
if (tnow-tstart > 2.) { // wuff - signed/unsigned/overflow
timedout:
avrdude_message(MSG_INFO, "%s: stk500v2_recv(): MK3 printer did not boot up on time\n", progname);
return -1;
}
}
if (serial_send(&pgm->fd, entry_magic_receive, strlen(entry_magic_receive)) < 0) {
avrdude_message(MSG_INFO, "%s: stk500v2_send(): failed to send command to serial port\n",progname);
return -1;
}
entry_magic_ptr = entry_magic_cfm;
while (*entry_magic_ptr != 0) {
if (serial_recv(&pgm->fd, &c, 1) < 0)
goto timedout2;
printf("Received: %c (%d)\n", c, (int)c);
if (c != *entry_magic_ptr++) {
avrdude_message(MSG_INFO, "%s: stk500v2_recv(): MK3 printer emited incorrect start code\n", progname);
return -1;
}
gettimeofday(&tv, NULL);
tnow = tv.tv_sec;
if (tnow - tstart > 2.) { // wuff - signed/unsigned/overflow
timedout2:
avrdude_message(MSG_INFO, "%s: stk500v2_recv(): MK3 printer did not boot up on time\n", progname);
return -1;
}
}
}
if (stk500_getsync(pgm) < 0)
return -1;