TMS320F28388D: EEPROM for Ethercat nessesary?

Jan Hummel53

Part Number: TMS320F28388D

Hello everyone,

I hope some can help me.

Is the EEPROM connected over I2C nessesary for the Ethercat controller (ESC) of the TMS320F28388D?

Is there a possibility to store the data of the Slave Information Interface (SII) for the Ethercat Slave in an other EEPROM, that is not directly connected to the Ethercat Slave part of the chip? How does the ESC get the data for the SII?

When i connect an EEPROM over I2C directly to the ESC (Pins: ESC_I2C_SDA, ESC_I2C_SCL), can i use the I2C also to communicate with e.g. an Realtime Clock on the same bus?

Best regards

Jan

over 5 years ago

0 Christopher Chiarella over 5 years ago

TI__Mastermind 30255 points

Jan

Yes, it is an EtherCAT slave requirement to have EEPROM connected for configuration up the slave registers upon boot up.

The external EEPROM is the only option and can't be combined with other I2C activity. You should use a separate I2C peripheral instance for those items.

Best regards

Chris

0 Jan Hummel53 over 5 years ago in reply to Christopher Chiarella

Intellectual 310 points

Thank you very much for your answer.

When the EEPROM has to be connected only during booting.

Is it possible to do built an Muxer on the DSP GPIO and use the pin for other things atfer the boot of the Ethercat?

Best regards

Jan

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28388D: EEPROM for Ethercat nessesary?