SERIN2 Receiving Wrong Data

[tumbleweed]

From an old DT post (https://www.picbasic.co.uk/forum/sho...roblem?p=90526)

Anytime you are using interrupts (other than ON INTERRUPT), it interrupts things.
USB_ASM_Service uses USB interrupts that happen quite frequently.

Software timed routines like SEROUT2, PAUSE, PULSIN/OUT etc. Will lose time that they don't know about.

When using interrupts, Hardware devices should be use instead of software commands.
Instead of SEROUT2, use HSEROUT with the USART.

PAUSE ... use a timer.
PULSIN ... use a CCP module.
COUNT ... use a Timer

There are still many PBP commands you can use without problems.
But, if if they require specific timing thru software, that timing will be disturbed.

[rsocor01]

From an old DT post (https://www.picbasic.co.uk/forum/sho...roblem?p=90526)

Yes, that explains everything. Unfortunately, I can't use the HSERIN/HSEROUT ports available in the 18F4550 because they are already taken doing the hardware communication. Increasing the baud rate worked.

[Ioannis]

Increasing the baud rate worked.

You mean decreasing ovbiously. But problem is not solved and at random time it is possible that will happen again. Maybe more seldom but it will.

Ioannis

[rsocor01]

You mean decreasing ovbiously. But problem is not solved and at random time it is possible that will happen again. Maybe more seldom but it will.

Ioannis

So far it hasn't fail yet with a 9600 baud rate, but I can live with a very low failure rate.