TMS320F2800137: Device Unique ID

youjun zhang

Intellectual 600 points

Part Number: TMS320F2800137
Other Parts Discussed in Thread: C2000WARE

Tool/software:

HI expert:

I can not find the UID register in ccs ,how to find the Device Unique ID value?

over 1 year ago

0 Ryan Ma over 1 year ago

TI__Mastermind 26676 points

Hi Youjin,

Please refer to this thread:

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1312359/tms320f2800137-device-unique-id

Best,

Ryan Ma

0 youjun zhang over 1 year ago in reply to Ryan Ma

Intellectual 600 points

yes。

the address error I finded.

such as,i can find the TestErrorRegs in ccs.

but i can not find the UidRegs in ccs?where can i find the value?

0 youjun zhang over 1 year ago in reply to youjun zhang

Intellectual 600 points

0x0007_1140 random ID1 (used to seed UID0/1)

0x0007_1142 random ID2 (used to seed UID0/1)

0x0007_1144 random ID3 (used to seed UID0/1)

0x0007_1146 random ID4 (used to seed UID0/1)

0x0007_1148 random ID5 (used to seed UID0/1)

the value is different after mcu reset each time?

0 youjun zhang over 1 year ago in reply to youjun zhang

Intellectual 600 points

0x0007_1140 random ID1 (used to seed UID0/1)

0x0007_1142 random ID2 (used to seed UID0/1)

0x0007_1144 random ID3 (used to seed UID0/1)

0x0007_1146 random ID4 (used to seed UID0/1)

0x0007_1148 random ID5 (used to seed UID0/1)

the value is different after mcu reset each time?or pseudo-random data is same after mcu reset each time and each mcu is different?

0 Ryan Ma over 1 year ago in reply to youjun zhang

TI__Mastermind 26676 points

Hi Youjun,

Can you instead try calling the following driverlib function to get the unique ID?

Under sysctr.h, you'll find the SysCtl_getDeviceUID0 driverlib function.

Best,

Ryan Ma

0 youjun zhang over 1 year ago in reply to Ryan Ma

Intellectual 600 points

OK.

0x0007_114A UID_UNIQUE0

0x0007_114C UID_UNIQUE1

UID_UNIQUE is 64 bit,which is the high 32bit?UID_UNIQUE1?

0 youjun zhang over 1 year ago in reply to Ryan Ma

Intellectual 600 points

Under sysctr.h, you'll find the SysCtl_getDeviceUID0 driverlib function.

Q:sorry ,i can not find the SysCtl_getDeviceUID0 function

+1 Ryan Ma over 1 year ago in reply to youjun zhang

TI__Mastermind 26676 points

Hi Youjun,

Under sysctl.h, which can be found here:

C:\ti\c2000\C2000Ware_x_xx_xx_xx\driverlib\f280013x\driverlib\sysctl.h

the driverlib function reads the address as 32 bit, for both UID0 and UID1.

UID0's would be the LSB, UID1's would be MSB. Making your Unique identifier 64 bits long.

Best,

Ryan Ma

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F2800137: Device Unique ID