TMS320F28332: Enquiry about the setting of SPI Master read.

Hi JH,

Have you tested the ADS127L01EVM to ensure that it is sending data to the F2833x? What is your programmed clocking scheme? I would consider referring to the SPI TRM section, linked here, and look at these sections specifically: gpio configuration, programming procedure before going through all the specific bits of the registers.

Regards,

Aishwarya

Hi.

FYI, i have read though docs you shared previously, pls look at the SPI setting that i set below:

Currently i face the issue where master (Deflino f2833x) cnt receive the data which sent from slave (ADS127L01EVM), i have ready a code to monitor the drdy pin (GPIO 30) and the master will read the data once the DRDY pin goes low, pls see my code below:

Now the question is, there are no SCLK pulse from Master and slave select pin did not change to low for activate the CS once the code reach the "master read" code.

So, may I know is there any other setting/configuration the needed for set up the Master to receive the data from slave.

Hope you could provide support on this.

Looking forward to your support. 

Hi. Another question related to the SPI setting.

Is SPISTE pin required for the master mode setting? Or we should set another GPIO pin for the CS (slave control) function?

Hi. According to the pic attached below, may i know what is the meaning of the highlighted statement ?

"Data is output on the SPISIMO pin and latched from the SPISOMI pin"?

Hi, just some extra information for you where here i would like read 32b data from the slave (ADS127L01EVM), as per review the SPIRXBUF is just 16b, so is there any setting need to do for make this works?

Hi JH,

I see that you have another thread open regarding the same question. I'll close this thread for now and we can support you on the other thread: https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1284088/ads127l01evm-enquiry-about-the-spi-protocol-setup-of-ads127l01evm-with-delfino-f2833x-board

Aishwarya