TMS570LC4357-EP: TMDX570LC43HDK

Hi Spoorthi,

Spoorthi M said:

I tried the mibSPI example code provided in HALCogen software and observed the data transfer between internal registers

Is that means you tried loop back example?

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Thanks & Regards,
Jagadish.

Yes, which was in the example sections of HALCogen. But i need a code for external data transmission and reception using SPI2 Configurations.

Thanks & Regards,

Spoorthi.M

Hi Spoorthi,

Spoorthi M said:

1) Check the above reference and please provide the code for data communication between HDK board and external hardware (data key) .

The provided code can also be useful to get data from external hardware,

did you try by disabling loopback or not

I just tested that code by connecting a slave SPI device and it worked fine for me (I got data from external slave device as well).

Spoorthi M said:

2) How and where to change clock frequency for SPI?

You can easily change the frequency from HALCoGen GUI

After changing the code, you have to regenerate your code

Spoorthi M said:

3)when probed the clock, I was able to obtain a 50 hz clock frequency when I probed SPI clock pin, but I also saw that CS0, SOMI, and SIMO pins had the same clock frequency.

That is not possible because i set the frequency for 1MHz

I tested at my end the clock frequency is 1Mhz(period = 1uSec)

Just try to test disabling loopback.

5822.SPI_MASTER_TEST_LC4357.zip

If needed you can take above code, there i disabled loopback and i also tested by interfacing one slave SPI device and it worked well.

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Thanks & Regards,
Jagadish.

Thank you soo much for the explanation & example provided, I'll implement and update.

Regards,

Spoorthi.M

Okay Spoorthi, 

Please do implement and let me know if any further assistance required.

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Thanks & Regards,
Jagadish.