Data Flash unreadable after a firmware reload

Hi All,


I'm working on a RX62T microp. and I need to use the internal data Flash to store some application configurations.

I'm using the 'rx_flash_api_rx600' routine from Renesas and read and write to the data flash works fine (I mean that I can write and read data without problem).

The issue is that after a chip reprogramming with 'Renesas_Flash_Programmer V3.02.00' the Data flash become unreadable or better, reading it random values are returned.

The only way to escape this situation is to re save data into the Data Flash.

Note that in 'Renesas_Flash_Programmer V3.02.00', Data Flash block setting, all the options, erase and prog./verify, are unchecked.

Any Idea?