TMDSCNCD28388D: what is the intention of the eeprom IC on the controlBoard and why it is related to ethercat (ethercat eeprom)

Pablo Slavkin

Part Number: TMDSCNCD28388D

Hi, what is the real intention of the eeprom IC on the controlBoard? and why it's related to Ethercat? is it something related to the applications or it's a hardware requeriment to the internal network communication uC cortex M4 for the ethercat to work.

I mean, is it a must or an option.?

May I use another memory technology, or the internal flash of the uC directly?

Thanks in advance. Pablo

over 4 years ago

0 Christopher Chiarella over 4 years ago

TI__Mastermind 30255 points

Hello

EEPROM is a requirement for EtherCAT slave IP. EtherCAT slave configuration data is stored there that is loaded upon boot up of the peripheral.

Best regards

Chris

0 Pablo Slavkin over 4 years ago in reply to Christopher Chiarella

Prodigy 220 points

Thanks Cris, and by the way, where is that information? On the reference manual? is these IC acceded from the cortex uC?

thanks and best regards

Pablo

0 Christopher Chiarella over 4 years ago in reply to Pablo Slavkin

TI__Mastermind 30255 points

Hello

You can find this requirement detailed in the EtherCAT chapter (section 31.1.4.11) in the F28388D technical reference manual. Additionally, the EtherCAT slave documentation from ETG (EtherCAT technology group) also details this.

The EEPROM will be accessed by the EtherCAT IP. It doesn't matter whether the EtherCAT IP is allocated to CPU1 or CM.

Best regards

Chris

0 Pablo Slavkin over 4 years ago in reply to Christopher Chiarella

Prodigy 220 points

Great Chris, I found that strange requirement.. but as you said it is a must 'cose ecat specification. So I'll add the eeprom IC on my design too.

Thanks you very much, have a great day!

Pablo

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TMDSCNCD28388D: what is the intention of the eeprom IC on the controlBoard and why it is related to ethercat (ethercat eeprom)