56F807EVM DAC

inni — Tue, 29 Aug 2006 21:58:07 GMT

Hi all. Im kind of new to dsp's and especially Processor Expert. Im currently trying to get the DAC on a 56F807EVM DSP up and running using the SWSPI bean, but can't seem to crack it. Can anyone please give me advise and/or examples on how to implement the DAC using Processor Expert?

Re: 56F807EVM DAC

Gregoriy — Wed, 06 May 2009 15:48:43 GMT

void SetDAC(word input)

{

word moved,ctrl;

byte part1,part2;

moved=input<<2;

ctrl=moved|0x3000;

part1=ctrl>>8;

part2=ctrl&0x00FF;

Bit1_ClrVal();

SPI1_SendChar(part1);

SPI1_SendChar(part2);

Bit1_SetVal();

}

My private function to set up voltage on DAC output. Values 0-1023 can be inputted because of 10 bits resolution.

- activate SPI bean

- call functon in the code with input of your value (trimpot on the board changes range of voltage)

function simply divides data into two chars abnd sends it to SPI. Everything from specification of MAX5251. I suggest to have a look.

topic 56F807EVM DAC in Classic/Legacy CodeWarrior

56F807EVM DAC

Re: 56F807EVM DAC