NTM88 flash address 0xfd40~0xfdff cannot be programmed.

[tedwu1]

Hi I used NTM88 for TPMS project. Now, I cannot program data into address between 0xfd40~0xfdff. I knew them are form parameter and I backup them. They are 0xBA between 0xfd40~0xfdff. And 0xffb0~fff7 are 0xff. 0xffb8 ~0xffbf are 0xba,0xba,0xba,0xba,0xba,0xff,0xba,0x82. How to re-write parameter into address of 0xfd40~0xfdff?

[TomasVaverka]

Hi Ted,

Please keep in mind that trim coefficients are programmed between 0xFD40 and 0xFDFF (see the AN12524 for more information).

The trim coefficients are unique to each device and they must not be erased or overwritten, otherwise the sensor measurements will be out-of-range.

In CodeWarrior, the NTM88_LIB patch prevents the CW programming tool to erase these coefficients, that is why they are never erased nor overwritten by CW even if they are referenced in the s19 file.

Best regards,

Tomas