Gorazd Rosbach

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10 years ago.

LPC1768,KL25Z

Hi,

I have a strange problem with tickers. I try to run a ticker at a frequency of 20Hz and only sending some small string and a random integer through USB UART. The ticker stops running after some minutes of tickig. This occures on an KL25z.

On LPC1768 I send 1 byte of data via CAN (DLC 1) every 0.05s (20Hz). The data is allways the same (I jsut trigg an event on my piece of HW). And the ticker stops running after some minutes <- this was the very first time, I noticed the issue.

Is there any time limit (how much time does a Ticker run)? Should I try to detach and attach a new instance of ticker? I have to run this ticker for at least 30min at a 20Hz rate and the ticker falling out is quite annoying.

Any help would be very appreciated.

RGDS

1 Answer

Martin Kojtal
10 years ago.

Hi,

there has been similar reports lately, like this one https://developer.mbed.org/questions/5301/TICKER-handbook-example-FAILS-after-appr/. They might answer your question.

Try to use revision 88 if the problem persists.

Regards,
0xc0170

Accepted Answer

I think this is supposed to be fixed in the latest release, but versions 89 and 90 are affected.

posted by Erik - 01 Dec 2014

Hi! I've done an upgrade to revision 91 and after 7 hours of working, I assume that the problem is fixed. Thank you very much.

RGDS

posted by Gorazd Rosbach 01 Dec 2014