RPi_hardware_code.md

Raspberry Pi Hardware Code

• Code: EDCBBA=$( awk '/Revision/ {print $NF}' /proc/cpuinfo )

Name	code BB	wl	eth	SoC	CPU x core	GHz	code C
ARMv6Z (32bit)
Zero	09	X	X	BCM2835	ARM1176JZF-S x 1	1	0
Zero W	0c		X	↑	↑	↑	↑
A+	02	X	X	↑	↑	↑	↑
B+	03	X		↑	↑	↑	↑
ARMv7-A (32bit)
2B	04	X		BCM2836	Cortex-A7 x 4	0.9	1
ARMv8-A (64/32bit)
Zero 2W	12		X	BCM2710A1	Cortex-A53 x 4	1	2
2B 1.2	04	X		BCM2837	↑	0.9	↑
3B	08			↑	↑	1.2	↑
3A+	0e	+5GHz	X	BCM2837B0	↑	1.4	↑
3B+	0d	↑	Gbit	↑	↑	↑	↑
4B	11	↑	↑	BCM2711	Cortex-A72 x 4	1.5/1.8	3
ARMv8.2-A (64/32bit)
5	17	↑	↑	BCM2712	Cortex-A76 x 4	2.4	4

#!/bin/bash
revision=$( grep ^Revision /proc/cpuinfo )
BB=${revision: -3:2}
if [[ $BB == 00 ]]; then # 1 - BB[C]
	[[ ${revision: -1} =~ 7|8|9 ]] && model=A || model=B
elif [[ $BB == 04 ]]; then # 2B - [A]BB
	[[ ${revision: -4:1} == 1 ]] && model=2B || model=2B1.2
else
	declare -A BB_model=( [01]=CM1  [02]=A+ [03]=B+     [06]=CM1 [08]=3B  [09]=Zero [0a]=CM3 [0c]=ZeroW [0d]=3B+ [0e]=3A+ \
	                      [10]=CM3+ [11]=4B [12]=Zero2W [13]=400 [14]=CM4 [15]=CM4S [16]=CM2 [17]=5 )
	model=${BB_model[$BB]}
fi
echo $model

• A - PCB revision
• BB - Name - BB=${EDCBBA: -3:2} (Zero W: 19000c1 - 7 characters)
• C - CPU - C=${EDCBBA: -4:1}
• D - Manufacturer:
  • 0 - Sony - UK
  • 2 - Embest - China
  • 3 - Sony - Japan
  • 5 - Stadium - China
• E - RAM:
  • 9 - 512KB
  • a - 1GB
  • b - 2GB
  • c - 4GB
  • d - 8GB
• Example: a22082 : 1GB - Embest - BCM2837 - Raspberry Pi 3B - revision 2
• Single core (Zero and 1 - BCM2835): [[ $C == 0 ]]
• On-board Wi-Fi and Bluetooth: [[ ! $BB =~ ^(00|01|02|03|04|09)$ ]] (not zero, 1, 2)
• Ethernet:
  • Model A - without ethernet
  • Model B - on-board ethernet
• On-board HDMI: (If not connected, disabled by kernel.)
• None in Zero and Zero 2:
  • 3.5mm headphone output
  • DSI - MIPI display interface
• /boot/kernel*.img :
  • /boot/kernel8.img - 64bit
  • /boot/kernel7.img - 32bit
  • /boot/kernel.img - legacy (Zero, 1)