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Lengthen timeouts for lower baud rates

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stefanrueger
2025-05-19 20:47:44 +02:00
parent 0ad18e5c2f
commit ce093df4e6
1 changed files with 8 additions and 4 deletions
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12
src/urclock.c
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@@ -1679,7 +1679,7 @@ static int urclock_paged_rdwr(const PROGRAMMER *pgm, const AVRPART *part, char r
// STK500v1 only: tell the bootloader which address should be used by next paged command
if(!ur.urprotocol && urclock_load_baddr(pgm, part, mchr, badd) < 0)
return -1;
return -1;
if(mchr == 'F' && rwop == Cmnd_STK_PROG_PAGE) {
if(len != ur.uP.pagesize)
@@ -1935,7 +1935,8 @@ static int urclock_getsync(const PROGRAMMER *pgm) {
AVRPART *part;
// Reduce timeout for establishing comms
serial_recv_timeout = 25; // ms
double kbd = pgm->baudrate <= 0? 115.200: pgm->baudrate/1000.0;
serial_recv_timeout = 25 + (kbd < 115? 160/kbd: 0); // ms: longer for low baud rates
part = partdesc? locate_part(part_list, partdesc): NULL;
/*
* The urboot autosync detection uses a loop
@@ -1954,7 +1955,7 @@ static int urclock_getsync(const PROGRAMMER *pgm) {
autobaud_sync = part && part->autobaud_sync? part->autobaud_sync: Cmnd_STK_GET_SYNC;
ur.sync_silence = 2;
serial_drain_timeout = 20; // ms
serial_drain_timeout = 20 + (kbd < 115? 80/kbd: 0); // ms: longer for low baud rates
for(attempt = 0; attempt < MAX_SYNC_ATTEMPTS; attempt++) {
/*
@@ -2003,7 +2004,7 @@ static int urclock_getsync(const PROGRAMMER *pgm) {
urclock_send(pgm, iob, 1); // So, send the concluding byte
}
}
serial_drain(&pgm->fd, 0); // And either way drain the reply
serial_drain(&pgm->fd, 0); // And either way drain the reply
ur.sync_silence = 0;
@@ -2044,6 +2045,9 @@ static int urclock_getsync(const PROGRAMMER *pgm) {
}
}
if(kbd < 115) // Increase timeout for low baud rates
serial_recv_timeout += (ur.uP.pagesize + 5)*10/kbd;
return 0;
}