topic DALI on LPC MCU in LPC Microcontrollers

DALI on LPC MCU

Chish — Mon, 15 Nov 2021 14:33:36 GMT

hey! I don't understand one part in the code. The value of the command is 226 which is BYTE on the other hand the dtr is also BYTE but I don't understand that how the command (value 226) when assigned to 'dtr' got equal to 1?

Can someone answer it please?

Regards,

Re: DALI on LPC MCU

ZhangJennie — Tue, 16 Nov 2021 07:34:18 GMT

Two questions:

1. I wonder if this question related with a LPC product? or a pure C language question?

2. If this is a pure C question. your problem is

after executing dtr=command; (command is 226) ,dtr doesn't get the the same 226 but 1? You want to know why.

Is this your question?

Thanks,

Jun Zhang

Re: DALI on LPC MCU

Chish — Tue, 16 Nov 2021 09:10:12 GMT

yes

Re: DALI on LPC MCU

ZhangJennie — Tue, 16 Nov 2021 09:29:42 GMT

if the "yes" is for 2, variable dtr may be optimized. try to cast volatile when define it.

If this can't resolve your issue. Please create a new project with piece of demo code, thus we can test it directly on board.