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Interfacing DAC with BF609 Evaluation Kit

Question asked by kayamkha on Oct 21, 2013
Latest reply on Nov 13, 2013 by Prashant

Hi,

 

I want to interface AD9742 (12-bit DAC) with BF609 Evaluation Kit, so that I can generate different waveforms such as sine, square, triangle etc. I am new to BF609 coding.

 

I need help in writing a simple startup code.

 

Connections:

 

Port=F is connected to the DAC data inputs.

Timer 3 output is connected to CLK pin of DAC.

The waveform data is located in DRAM.

 

I need to perform the following task.

 

1. Initialize PPI (Port-F),

2. Initialize DMA to transfer data from memory to PPI.

3. Initialize Timer 3

4. Write code to generate 5 MHz sine wave for a period of  100 uSec.

 

Thank you.

Azam

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