General Category > Discussion - Drivers

FT4222: Very high CPU load and gaps between bytes

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FTDI Community:
Hi,

we were able to recreate the high CPU load on the raspberry pi. you can add the following setting at the beginning of your code which will resolve this issue: ftStatus = FT_SetTimeouts(ftHandle, 5000,0);

concerning the gaps between bytes, sorry this is a firmaware limitation so there is no way to resolve it.

Best Regards

FTDI Community

a4711:
Thank you for your suggestion. I confirm that the CPU load is now a bit lower, but it is still higher than I would expect.

Could you explain the consequence of setting the timeout to 0?

Thanks.

FTDI Community:
Hi,

Setting the timeout to 0 just means that the timeout is infinite, or until the task has been completed. There should be no real consequences to dong this.

Best Regards,

FTDI Community 

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