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Aduc842: Doubts about timer2 and timer3.

McLovin McLovin

Hello,

I'm new with microcontrollers and I have some questions.

I'm using the Aduc842 with a 32.768KHz crystal. I want to use the Analog to Digital Converter and I want to get 8000 samples per second. I'm using timer2 for the interrupt of ADC.

I saw this in an example:

sample period = 2 * T2 reload prd=2*(10000h-FFF4h)*5.722us=2*11*5.722us=125.884us


Where does 5.722us come from? Can you help me to choose the right RCAP2L, RCAP2H, TL2, TH2?

I also want to send via UART some data with 115200 baudrate that I generate with timer3. VDD is 3v, and I read that the maximum coreclock when VDD=3v is 8.38MHz and that CD bits shouldn't be 0.

With this, is it possible to reach 115200 baudrate with a 8.38MHz coreclock? what value should be T3CON and T3FD?

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