MPC5744P

[abdelrhman]

I'm trying to erase and program flash sectors of MPC5744P, 64kb blocks, whose starting addresses are 
0x00FA0000, 0x00FB0000, 0x00FC0000, 0x00FD0000, 0x00FE0000, 0x00FF0000, are programmed as expected successfully. However, 256kb blocks, whose starting addresses are 0X01000000, 0X01040000, 0X01080000, 0X010C0000, 0x01100000, 0x01140000, 0x01180000, 0x011C0000, are not programmed successfully. they have un expected behavior, 128 bytes only which are programmed and flashed in the memory.

why does this happen?
thanks  

[petervlna · Accepted solution]

Hello,

I've just opened debugger and wrote to the flash at 0X01040000 with no issues on SPC5744P device:

I expect you are not following programming procedure described in reference manual chapter 32.4.1.2 Program or 32.4.1.3 Erase

Please make sure you are following steps in reference manual.

Best regards,

Peter

[abdelrhman]

Thank you peter for your response.

Could you send me an example to erase and program in 256kB sectors??

[abdelrhman]

Hello peter
For you to know, I'm using C55 driver APIs
programming 64KB sectors were completed successfully but programming 256KB sectors were not