qn9080 ota and eeprom_write / read

[jung-jin]

Hello.

I am currently using QN9080.

I am accessing flash memory using the provided functions EEPROM_writeData() and EEPROM_readData().

Before updating the FW with OTA, reading and writing data on number 0 is well preserved.

After the OTA update, data such as DEAD ACE5 (hexa) is uploaded to the memory at address 0.

Is there a stable area of flash memory that is preserved even after OTA updates?

Thank you!

[Ricardo_Zamora · Accepted solution]

Hello,

For a better understanding of the memory and sizing information, we recommend taking the memory footprint in the QN908XC_connectivity.ld linker file as reference for bootloader and application memory usage considerations.

As another general recommendation, the "Bluetooth Low Energy Application Developer Guide document.pdf" (Path: SDK_2_2_6_QN908XCDK\docs\wireless\Bluetooth) has more information regarding OTA support and functionality.

Regards,

Ricardo