TM4C1294NCPDT EEPROM

Lewis

Intellectual 630 points

Other Parts Discussed in Thread: TM4C1294NCPDT

Hi all

May I ask what TM4C1294NCPDT the EEPROM starting address and ending address is not it?

Thanks

Lewis

over 10 years ago

0 Amit Ashara over 10 years ago

TI__Guru**** 244400 points

Hello Lewis

The EEPROM is indirectly accessed memory. It does not have a CPU accessible physical address map like FLASH or SRAM

Regards
Amit

0 Lewis over 10 years ago in reply to Amit Ashara

Intellectual 630 points

Hi Amit
So I use this functionEEPROMProgram((uint32_t*)&e2prom_write_value,E2PROM_TEST_ADRES,sizeof(e2prom_write_value))，
where the parameters “E2PROM_TEST_ADRES”，can I write any address? Or select an address within the range？

Thanks
Lewis

0 Amit Ashara over 10 years ago in reply to Lewis

TI__Guru**** 244400 points

Hello Lewis,

From user/application the EEPROM are words at 0x0, 0x4, 0x8... till 0x17FC. The E2PROM_TEST_ADRES in this case would be the starting location in the range if 0x0 to 0x17FC where the sizeof(...) words would be written.

Regards
Amit

0 Akash Patel over 8 years ago in reply to Amit Ashara

TI__Expert 6245 points

Hi Amit,

Does this mean that with EEPROM I cannot define the boundaries in the .cmd file like I do for Flash and SRAM (like below)?
EEPROM (R): origin = 0x400AF000, length = 0x00001000

I want to be able to view the EEPROM utilization in the Memory Allocation window in CCS like I can for Flash and SRAM.

Also, I see in the datasheet for the TM4C1294NCPDT that for EEPROM the start address is 0x400A.F000 and the end address is 0x400A.FFFF. This is only 4 KB but this device has 6 KB, what is the reason for that?

Regards,
Akash Patel

0 Amit Ashara over 8 years ago in reply to Akash Patel

TI__Guru**** 244400 points

Hello Akash

No. It is not possible to do so. Also the 0x400AF000 is the address space for the registers for indirect access to program and read EEPROM's 6KB locations.

0 Akash Patel over 8 years ago in reply to Amit Ashara

TI__Expert 6245 points

Hi Amit,

Thank you for the quick response. So the 0x400AF000 is only serving as the base address for the EEPROM registers on page 622-623 of the datasheet, correct?

Regards,
Akash Patel

0 Amit Ashara over 8 years ago in reply to Akash Patel

TI__Guru**** 244400 points

Hello Akash

Yes, that is correct.

Arm-based microcontrollers

Arm-based microcontrollers forum

TM4C1294NCPDT EEPROM