SPI

ENIS SARAC

Intellectual 280 points

I am trying to comminicate with EtherCAT using F28335 SPI. is SPISTE pin controlled by software or SPI module during

master transmission. It seems that after communication SPISTE stays high

Best Regards

over 15 years ago

0 Katie Pier over 15 years ago

TI__Guru* 82611 points

Hi Enis,

The SPISTE pin is automatically brought low by the SPI module when sending a transmission from the master and then brought back high after transmission is complete - SPISTE will then remain high until the next transaction (see Figure 2-16 in the F28335 SPI reference guide). If you need a software controlled SPISTE you can change the pin muxing for your SPISTE pin to be used as GPIO instead of SPISTE, and then manually control the output of that GPIO pin in software. I hope this helps!

Regards,

Katie

0 Qaisar Masoud over 15 years ago in reply to Katie Pier

Prodigy 30 points

Hi, I am using F2812 in our motion control system. I want to use it as SPI-Master to make it to communicate with EtherCAT slave controller. I am looking for SPI driver for the controller board F2812. Could you please tell me, is it available at TI or some other cource of it.

Thanks in advance,

Regards,

Qaisar

0 ENIS SARAC over 15 years ago in reply to Qaisar Masoud

Intellectual 280 points

We have managed to communicate with ET1100 using F28335. We are able to read-write registers of ET1100 . But needs some additional effort to complete it.

0 Qaisar Masoud over 15 years ago in reply to ENIS SARAC

Prodigy 30 points

Hi Enis,

Thank you very much for your quick reply and sharing with me your progress. I am also using ET1100. I would really appreciate some help about SPI implemetation.

0 ENIS SARAC over 15 years ago in reply to Qaisar Masoud

Intellectual 280 points

I am going to post here SPI comminication section of code soon. Mean time you can contact me from esarac@meysar.com

0 Henk Schutte over 11 years ago in reply to ENIS SARAC

Intellectual 345 points

Enis, I just started connecting ET1100 on a C2000 DSP2834x chip, and found only a SOES interface from Ketels, which clearly differs from TI- spi.

Any sources published yet??

Henk Schutte

Amsterdam NL

henk@sensacnc.nl

C2000™︎ microcontrollers

C2000 microcontrollers forum

SPI