Search found 4 matches

by eryn
Wed Dec 15, 2010 10:29 am
Forum: SUB-20 General Discussion
Topic: SUB-20 error: Failed to submit async transaction
Replies: 7
Views: 26877

Re: SUB-20 error: Failed to submit async transaction

Maybe commenting asynchronous transaction out may help.
But I am still curious on what might be the event that trigger this error, if you don't mind to tell me.
Thanks
by eryn
Wed Dec 15, 2010 1:30 am
Forum: SUB-20 General Discussion
Topic: SUB-20 error: Failed to submit async transaction
Replies: 7
Views: 26877

Re: SUB-20 error: Failed to submit async transaction

As I know async transaction prevent other master to use the bus line when it is busy. Normally, our program transmit data to only one slave at a time. So, I am confuse on this. Meanwhile, may I know what is affected or different by changing of asynchronous mode to synchronous mode? Thank you very mu...
by eryn
Tue Dec 14, 2010 1:30 am
Forum: SUB-20 General Discussion
Topic: SUB-20 error: Failed to submit async transaction
Replies: 7
Views: 26877

Re: SUB-20 error: Failed to submit async transaction

We are using Emdebian 2.6.26. We are trying to write speed and instruct motor to start at one direction using sub_i2c_write. It happen quite often and when this happen we have to restart our OS in order to get the I2C works at normal condition. Sometimes it happens since the first call and sometimes...
by eryn
Mon Dec 13, 2010 10:15 am
Forum: SUB-20 General Discussion
Topic: SUB-20 error: Failed to submit async transaction
Replies: 7
Views: 26877

SUB-20 error: Failed to submit async transaction

Hi, I am currently using the SUB-20-B multi interface USB adapter to connect my motor drivers via GPIO and communicate with core board using USB. I always get the error " Failed to submit async transaction " for I2C application. May I know what is the probable cause for this error? Thank you very mu...