How Do I Find Out Who Manufactured My Pi??

[Pi_Guy88]

Hello all,

I am needing to find out who manufactured my Pi. I do believe i have run by the process once before, but I don't remember how i did. I tried 'cat /proc/cpuinfo' , and it doesn't tell me who manufactured it. please help. Thanks to all whom help!!

[DougieLawson]

cat /proc/cpuinfo does tell you, but it's encoded in the "Revision" field.

[Pi_Guy88]

@DougieLawson, Ahh, I see. So I did some research on this, and it turns out that the revision indicates that the manufacturer is unknown. It's very odd.The other revision codes on the list I found online show for Sony, and a couple other known manufacturers.

[HermannSW]

Kolban's book on Raspberry Pi has full details, you just need 2 digit of BCM revision, in case of my Zero its Sony:

Code: Select all

$ cat /proc/cpuinfo 
...
Hardware	: BCM2708
Revision	: 900093
Serial		: 00000000fe1aea10
p

900093

Manufacturer:
0x00 – Sony
0x01 – Egoman
0x02 – Embest
0x03 – Not used
0x04 – Embest

Hermann.

[Pi_Guy88]

@HermannSW, I am not understanding how to read the list of manufacturers you listed. Here's what I show on my RPI3:
Hardware : BCM2709
Revision : a22082
Serial : 00000000aa13cfee

[DougieLawson]

https://github.com/AndrewFromMelbourne/ ... revision.c

Looks like your board was made by Embest.

[Pi_Guy88]

https://github.com/AndrewFromMelbourne/ ... revision.c

Looks like your board was made by Embest.

How do i use the link you provided to decode the revision? I'm reading a bunch of things I don't understand, to which there is no explanation for a beginner to these things.

[SonOfAMotherlessGoat]

Revision : a22082


That's the key digit in finding the manufacturer. Match that up with the list HermannSW provided and you find that 0x02 (which is just hex notation for 2) is Embest. If that digit was a 0, then it would be a Sony, if it was a 1 then it would be Egoman.

[Pi_Guy88]

Revision : a22082


That's the key digit in finding the manufacturer. Match that up with the list HermannSW provided and you find that 0x02 (which is just hex notation for 2) is Embest. If that digit was a 0, then it would be a Sony, if it was a 1 then it would be Egoman.

Thank you SonOfAMotherlessGoat. I appreciate that.

[HermannSW]

"Revision : 900093" for my Pi Zero, decoding:

Code: Select all

9     0     0        09    3
      sony  bmc2835  zero  pcb

1 001 

r 512MB
e
vision is bit encoded

[HermannSW]

"Revision : a22082" seems to be unofficial since one entry is wrong:

Code: Select all

A     2       2        08        2
      Embest  BMC2837  Not used  pcb
                       (model)
1 010 

r 1GB
e
vision is bit encoded

BMC2837 is missing in Kolban's book, but in this link https://github.com/AndrewFromMelbourne/ ... revision.c pointed to above.

Nice:

Code: Select all

pi@raspberrypi01:~/raspberry_pi_revision-master $ ./test
memory: 512 MB
processor: Broadcom BCM2835
i2cDevice: /dev/i2c-1
model: Model Zero
manufacturer: Sony
pcb revision: 3
warranty void: no
revision: 900093
peripheral base: 0x20000000

checking peripheral base against bcm_host library
... peripheral base matches base from bcm_host
pi@raspberrypi01:~/raspberry_pi_revision-master $ 

[Pi_Guy88]

"Revision : a22082" seems to be unofficial since one entry is wrong:

Code: Select all

A     2       2        08        2
      Embest  BMC2837  Not used  pcb
                       (model)
1 010 

r 1GB
e
vision is bit encoded

BMC2837 is missing in Kolban's book, but in this link https://github.com/AndrewFromMelbourne/ ... revision.c pointed to above.

Nice:

Code: Select all

pi@raspberrypi01:~/raspberry_pi_revision-master $ ./test
memory: 512 MB
processor: Broadcom BCM2835
i2cDevice: /dev/i2c-1
model: Model Zero
manufacturer: Sony
pcb revision: 3
warranty void: no
revision: 900093
peripheral base: 0x20000000

checking peripheral base against bcm_host library
... peripheral base matches base from bcm_host
pi@raspberrypi01:~/raspberry_pi_revision-master $ 

@HermannSW, here is a picture of what pops up when I use the 'cat /proc/cpuinfo' command.

[HermannSW]

Please download the .zip from here:
https://github.com/AndrewFromMelbourne/ ... i_revision

Then "make" and run "./test". You seem to have a Pi3, it seems that "0x08 Not used" seems to be changed to "0x08 Pi3" given your revision "a22082".

Hermann.

[patrikg]

Heres a good picture url:

http://raspi.tv/2016/raspberry-pi-famil ... 9-feb-2016