MSP430 unique chip number

There is a chip ID in flash (see SLAA089) but a serial number can be created and placed into flash. Our emulators don't do it by default (you would have to write this into your program), but our MSP-GANG430 production programmer can assign a unique serial number.

Hope that helps!

Hi Brandon,

But if I have hundred of devices? I will need to assign the ID manualy for every of them?

Oh.. such a disapointment.

Thank you very much Brandon, your helped me understand how to approach my problem. 

Thanks a lot.

Hey guys

I need to assign a unique number to each MSP430 node due to detection of nodes for server.To see if they are online or offline.

How could I write a unique code into the flash?please help

thank you

Compana said:

Does anybody know if MSP430 has a unuque chip number which could be accessed from the program, like in large processors?

a very similar topic is also being discussed on the "assign Unique Code for MSP430" thread.   i suggested generating a random number at start up and storing it in Flash.  TI has demo code available that does exactly that.

on the new 5xx devices, a unique Die Record is stored on the device at the fab in the device's TLV Structures.  It includes info such as the Wafer Lot ID, the device's X and Y coordinates on the wafer and test results.   the combination of these numbers are globally unique and can be used by your application for identification.   the location of the TLV structures is listed in the datasheet.  For example, search for "TVL" in the MSP430F5438 datasheet.

hi, my name julius..i have project to build up a pulse oximeter using msp430f149, i have build the board n downloader, i have bought the cable probe too..but i don't know how to finish the code and what type of lcd that i should to used...please help me to solve this problem, especially by the code problem..if any one ever build up the same thing like this, please help me to build the one..please answer my question and respond it to my mail at juliushasan2@gmail.com..please help me

adrian said:

a very similar topic is also being discussed on the "assign Unique Code for MSP430" thread.   i suggested generating a random number at start up and storing it in Flash.  TI has demo code available that does exactly that.

I recommend against using random number UIDs for any production system, as there is no guarantee that you won't get duplicates.  In fact, TI's Zigbee code did this and the random generator used there was untested and flawed and created lots of duplicates.  Even with a perfect random generator you have a finite probability of duplicates, something that will absolutely kill your sensor network (trust me, been there!).  Plan for unique serials burned in during programming, production, or built in as in the 'F5x/6x series.

Hi BrandonElliott,

I never find MSP-GANG430 or MSP-GANG has the option to generate a serial number .

the following screenshot is the lastest version of MSP-GANG430 [V1.58]

and here is MSP-GANG

5x family MSPs have a TLV structure that doesn't only hold calibration values but also a wafer number and x/y posiiton of the die on the wafer. This gives a unique ID for each individual processor.

Benny Chen said:

Hi BrandonElliott,

I never find MSP-GANG430 or MSP-GANG has the option to generate a serial number .

Benny, check out Elpotronic's FET-Pro430 Lite - http://www.elprotronic.com/fetpro430.html

To extract the wafer/lot and X and Y positions, look at memory locations 0x1A08 to 0x1AFF.

0x1A08 should be 08, 0x1A09 should be 0xA

If that is true, then

0x1A0A is a uint32 with lot number

0x1A0E is a uint16 with X coordinate (probably < 256)

0x1A10 is a uint16 with Y coordinate (probably < 256)

If you need a 8-byte MAC address, copy the bytes from 0x1A0A in a uint64 (little endian) as follows

mac[0] = (uint8_t*)0x1A0A[4];
mac[1] = (uint8_t*)0x1A0A[5];
mac[2] = (uint8_t*)0x1A0A[6];
mac[3] = (uint8_t*)0x1A0A[7];
mac[4] = (uint8_t*)0x1A0A[0];
mac[5] = (uint8_t*)0x1A0A[1];
mac[6] =  uint8_t*)0x1A0A[2];
mac[7] = (uint8_t*)0x1A0A[3];

If you need a 6-byte MAC address, cp[y the bytes from 0x1A0A and skip the 6th and 8th bytes which are probably 0, and copy as follows (assume the X and Y coordinate never goes above 255. I noted in a quick look at a few samples that the coordinates seem to be in the range 0 to 100)

mac[0] = (uint8_t*)0x1A0A[4];
mac[1] = (uint8_t*)0x1A0A[6];
mac[2] = (uint8_t*)0x1A0A[0];
mac[3] = (uint8_t*)0x1A0A[1];
mac[4] = (uint8_t*)0x1A0A[2];
mac[5] = (uint8_t*)0x1A0A[3];

If you need a 4-byte MAC address, you're on your own... drop the top 2 bits of the X and Y coordinate, and the top 12 bits of the lot number... ?

The choice of these byte orderings is to make the LSB bits the ones that change the fastest. Most tag caching mechanisms like to have the lower-order bits have the most variation.

Hi Mark,

it work's not for 430F2274 (ez430-rf2500).

What may be the reason?

(*0x1A08  is  0x03)

Thanks for your effort.

Bernd

Bernd Pollex said:

it work's not for 430F2274 (ez430-rf2500).
What may be the reason?

The MSP430F2274 is no 5x family device. It has no such TLV structure.

Hello,

This is an old post, but I was wondering if there are any example codes of a master requesting the TLV structure (wafer number and x/y position of the die) from a slave? I am trying to write code to identify a unique slave and then give it a new slave address.

Thanks!

F1xx \ G2xx\ F4xx--------------No unique ID

F5xx\F6xx\FR2xx\FR4xx\FR58xx\FR59xx---------------Have unique ID

Jonathan Kim97 said:

I was wondering if there are any example codes of a master requesting the TLV structure (wafer number and x/y position of the die) from a slave

F5xx F6xx  User guider ---------TLV charpter

I am using the F5xx family (5172 and 5338)
I can't seem to be able to find anything on the die records however in the user guide.

(I see the device descriptors and device ID and revision information, but I'm not sure how a slave board will be able to access this information from the command of a master and send it).

Details can be found in Datasheet, as follow:

The code is sth like:

u08_t* MSP430_LOTWafer_ID;
static void GetMsp430LotWaferIDForTerminalID(void)
{
    u08_t i;
    MSP430_LOTWafer_ID =(u08_t*)(0x01A0A);
    for( i=0;i<6;i++)
    {
     eSAM_TerminalNumber[i] = *MSP430_LOTWafer_ID++;
    }

}

FET-Pro430 Lite?This software is not used for MSP-GANG,but MSP-GANG Packaging has the “Elprotronic” LOGO.I don't

 know why?anybody can provide a useful tool?THANKS VERY MUCH.

In fact,The serial number is could be written with append code file.This picture has shown the function what we need.But this software does not support the MSP-GANG.Really very upset.After all,we can't both use FX5 or FX6 series MCU.

Does any part attached to the MSP have an individual ID?
If at boot-up say first 6bytes in INFOD is 0xff then go and get this external serial number over spi,i2c etc.
and copy it to INFOD. I did this with CC3000 as it has a MACID.