[LinuxCNC/linuxcnc Issue#27] sserial: everything goes south after a single error

#1 – floppydisk525 于 2016-01-10

I don’t know if this helps you or not but here are two ‘results’ from my 5i25/7i77 setup. One from 2.6.8 (I think) and one from 2.7.x.

I did upgrade the firmware for the 5i25/7i77 as 2.7.0 said that the firmware should be updated. I forget the number now, but I had a 2 year old firmware (at least).

2.6.8 – I saw this error at least 2x and ignored it: http://imgur.com/gallery/JKg0bLS/

2.7.x – I saw this error all the time and it wouldn’t let me ignore it: http://pastebin.com/uJYPrWgD

#2 – micges 于 2016-01-10

Masking non-fatal errors should help, this patch ignore extra character errors

--- a/src/hal/drivers/mesa-hostmot2/sserial.c
+++ b/src/hal/drivers/mesa-hostmot2/sserial.c
@@ -1729,7 +1729,7 @@ int hm2sserialcheckerrors(hostmot2t hm2, hm2sserialinstance_t inst){
     rtapi_u32 buff;
     int i,r;
     int err_flag = 0;
-    rtapiu32 errmask = 0xFF00E1FF;
+    rtapiu32 errmask = 0xFF00E1F7;
     const char *err_list[32] = {"CRC error", "Invalid cookie", "Overrun",
         "Timeout", "Extra character", "Serial Break Error", "Remote Fault",
         "Too many errors", 

#3 – jepler 于 2016-02-24

Fixed in 2.7.4.