Tool/software: Code Composer Studio
Hello,
I am writing a driver for the WIZnet W5500 SPI to ethernet converter. (Side note*: I didn't see an offering from TI to add ethernet functionality with a complete IP stack to the F2837x conrtolCard.)
The WIZnet utilizes a 24 bit + N data bytes SPI protocol. It requires that the CS pin (I'm assuming that TI calls this the SPISTE) be controlled by the master, the controlCard, for data reads/writes.
I have two issues:
1) How can the STE (CS) be controlled? It looks like it's controlled automatically at the moment.
2) The TI SPI software interface uses Uint16 data types. The minimum SPI transaction with the WIZNet device is 32 bits. Do I need to write a 32 bit version or can the TI SPI software interface be used?
Kindly,
Graham