Matrix user forums

Hi,

Im trying to send a four bit command to an eeprom to make it format itself. I am using a pic 12f1840. When I monitor the SDO on a scope there is no data transmitted. Can anyone help?

I have attached the flowcode file.

Many thanks

Tony

http://www.matrixtsl.com/mmforums/downl ... w&id=24848

Hi Tony,

Your program seems to have 3 SPI components in it. Maybe get rid of the components your not using.

If your going to monitor the SDO pin with the scope then try adding a while 1 loop around the send byte component macros to ensure your not simply missing the data.

What EEPROM are you using?

Hi,
Thanks for your response.

The eeprom I'm wanting to erase is an AT45DB321D.

The eeprom needs a four byte command sequence: C7H, 94H, 80H and 9AH.

I have not used the SPI command before so any help will be most appreciated.

Regards Tony

Hi Tony,
I know this topic is over a year old, but did you resolve your issue?