Hi, On 08/01/2018 03:15 AM, Alexander Sverdlin wrote:
This commit breaks YMODEM SPL->U-Boot boot on Beagle Bone, transfer is aborted (because of timeout) after 497kb (u-boot.img is around 570kb). Reverting the commit repairs YMODEM boot.
Is the timeout a watchdog timeout or some communication freeze? In case watchdog is correctly configured, kicking should still happen. Tomas
--- common/xyzModem.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/common/xyzModem.c b/common/xyzModem.c index 5656aac..e0d87db 100644 --- a/common/xyzModem.c +++ b/common/xyzModem.c @@ -71,12 +71,12 @@ typedef int cyg_int32; static int CYGACC_COMM_IF_GETC_TIMEOUT (char chan, char *c) { -#define DELAY 20 - unsigned long counter = 0; - while (!tstc () && (counter < xyzModem_CHAR_TIMEOUT * 1000 / DELAY)) + + ulong now = get_timer(0); + while (!tstc ()) { - udelay (DELAY); - counter++; + if (get_timer(now) > xyzModem_CHAR_TIMEOUT) + break; } if (tstc ()) {
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