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Altera_Forum's avatar
Altera_Forum
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13 years ago

RS232C Packet Loss

Hello, I am working with my custom board, and having problem communicating via RS232C. In very rare occasion, commands seems to be ignored, lost, or thrown away. My C code is some...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

No!

You need to increase any fifo that allow for a longer interrupt latency - eg the rs232 rx data fifo.

Alternatively just make the software fast enough!

In many embedded systems you don't actually need to use interrupts - provided the sofware 'idle' loop polls all the hardware often enough.

It does mean that you may need to optimise for the worst case path, rather than the common one.