Guidance on Using Flash Memory for Both Code and Data Sections in NTM88Jxx5S TPMS

[vinithramarapunxp]

Hello,

I am currently working with the NTM88Jxx5S Tire Pressure Monitor Sensor from NXP and have a few questions regarding its memory usage.

As per the datasheet, the 64 bytes of low-power “always on” NVM parameter registers are used to store data, but this data may be lost during power loss or disturbances. To ensure data retention during abnormal power cycles, I would like to utilize a portion of the (currently used only for code sections) to store critical data.

I would like to know:

1. Is it possible to allocate a portion of the 16KB flash memory for data storage alongside the code?
2. If yes, could you please provide a step-by-step process or guidelines for implementing this?
3. Are there any existing examples, reference code, or application notes to help in achieving this configuration?

I am attaching the datasheet and feature details for reference. Any insights, suggestions, or resources to move forward would be highly appreciated.

Looking forward to a quick response.

BR,

Vinith Ramarapu.

TPMS-SW NTM88 #flash_memory

[ErikaC]

Hello, 

Please see this community post: https://community.nxp.com/t5/Sensors/Splitting-Flash-Memory-for-Code-and-Data-in-NTM88Jxx5S-TPMS/td-...

As it addresses the same question, I will follow up there. If you have further questions, please post them in that thread.

[vinithramarapunxp]

The link you provided for NTM88 – RAM and FLASH Memory Organization document included in the Starter Package for the NTM88 and NCK2910 is not working and it's unable to access that

[ErikaC]

Please go to https://www.nxp.com/products/sensors/pressure-sensors/tire-pressure-monitoring-sensors-tpms/ntm88-hi...

Scroll down to Software and click on Starter Package for NTM88 and NCK2910.

[vinithramarapunxp]

Thank you mate, but this still doesn't answer my initial questions. I just need to know whether splitting the 16KB RAM into Data and code sections is possible. If so curate some references or examples as such. Thank you in advance.