Hello,
I try to write 0xFF to WorkFlash of Traveo2 MCU to avoid the ECC error by using J-Flash.
But I got verify error after write 0xFF to WorkFlash. (See attached JFlash.log line 151-158, 302-309)

Test case1 : All WorkFlash area is 0xFF.
address 0x14000000 - 0x14017FFF are 0xFF.
-> Verify Error at address 0x14000000.
Test case2 : Part of WorkFlash area is 0xFF.
address 0x14000000 - 0x1400FFFF are 0x01(not 0xFF data).
address 0x14010000 - 0x14017FFF are 0xFF.
-> Verify Error at address 0x14010000).

Q1:Does J-Flash skip writes 0xFF if the all of one block data are 0xFF at WorkFlash of Traveo2?
According to above test result, it seems that the J-Flash skip the 0xFF writing, if all of the one block data is 0xFF.
Q2:If Q1 is YES, Can I write 0xFF to WorkFlash of Traveo2 by J-Flash?

J-Flash Version : V8.10c, V8.10b, V7.98c
Target MCU : Infineon CYT2B73CAD

I attached my test environment. To know the detail refer to this files.
T2GDownload.jflash
JFlash.log