TMP1826: Modifying example onewire_tmp1826_demo_singledevice_eeprom_temp to do only EEPROM Write/Read only

Rashmitha Ramesh Nair

Part Number: TMP1826

Hi,

I am trying to modify the one wire example "onewire_tmp1826_demo_singledevice_eeprom_temp.c". I am using a single chip and would like to do just read & write to EEPROM.

Can I skip the highlighted part shown in the below image and proceed with SendNVMData right after SetDeviceAddress populates the device address in the tmp182x structure? I dont need the other config data that is being read in these intermediate steps. Could you please confirm if there are any steps in these that are essential for EEPROM write/read operation?

Regards,

Rashmitha

over 2 years ago

+1 Ren Schackmann over 2 years ago

TI__Mastermind 43905 points

You don't need short address in a single-device bus. You can perform all your transactions with Skip ROM addressing. You don't need to access ScratchPad1 to be able to write to user EEPROM via ScratchPad2. I don't have the same version of code that you're referencing; the author may reply with more detail.

thanks,

ren

0 Rashmitha Ramesh Nair over 2 years ago in reply to Ren Schackmann

Intellectual 455 points

Hi Ren,

Thanks for the response.

I am referring to the code @ TMP1826-1-WIRE-CODE Application software & framework | TI.com

Regards,

Rashmitha

0 Amit Ashara over 2 years ago in reply to Rashmitha Ramesh Nair

TI__Guru**** 244400 points

Hi Rashmitha

I agree with Ren. The section of code mentioned is not required for writing or reading from the EEPROM. The purpose of the code section is to show how the Scratchpad-1 can also be updated to its EEPROM

Regards

Amit Ashara

Sensors

Sensors forum

TMP1826: Modifying example onewire_tmp1826_demo_singledevice_eeprom_temp to do only EEPROM Write/Read only