Raspberry Pi 4 Model B Product Information Portal All In One
Raspberry Pi 4 Model B Product Information Portal All In One
PCN
Product Information Portal / 产品信息门户
Raspberry Pi 4 Model B
硬件版本迭代变化图解
https://pip.raspberrypi.com/categories/560-pcn
https://pip.raspberrypi.com/categories/560-pcn/documents/RP-001246-PC/PCN-Raspberry-Pi-4B-Rev-5.pdf
https://pip.raspberrypi.com/categories/560-pcn/documents/RP-001247-PC/PCN-Raspberry-Pi-4B-Rev-6.pdf
https://pip.raspberrypi.com/categories/560-pcn/documents/RP-001248-PC/PCN-Raspberry-Pi-4B-Rev-9.pdf
Linux shell command strings
# 打印 [文件] (默认为标准输入) 中可打印的字符串 ✅
$ strings /boot/start.elf | grep VC_BUILD
$ cat /proc/cpuinfo
demos
$ strings /boot/start.elf | grep VC_BUILD
VC_BUILD_ID_USER: dom
VC_BUILD_ID_TIME: 10:48:31
VC_BUILD_ID_VARIANT: start
VC_BUILD_ID_TIME: Jan 5 2023
VC_BUILD_ID_BRANCH: bcm2711_2
VC_BUILD_ID_HOSTNAME: buildbot
VC_BUILD_ID_PLATFORM: raspberrypi_linux
VC_BUILD_ID_VERSION: 8ba17717fbcedd4c3b6d4bce7e50c7af4155cba9 (clean)
$ cat /proc/cpuinfo
processor : 0
BogoMIPS : 108.00
Features : fp asimd evtstrm crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 1
BogoMIPS : 108.00
Features : fp asimd evtstrm crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 2
BogoMIPS : 108.00
Features : fp asimd evtstrm crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 3
BogoMIPS : 108.00
Features : fp asimd evtstrm crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
Hardware : BCM2835
Revision : d03115
Serial : 1000000052e87fab
Model : Raspberry Pi 4 Model B Rev 1.5
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Raspberry Pi 4B
1.5GHz => 1.8GHz
CPU 超频
🚀
# config.txt
arm_freq=1800
https://www.raspberrypi.com/news/8gb-raspberry-pi-4-on-sale-now-at-75/
https://www.raspberrypi.com/news/bullseye-bonus-1-8ghz-raspberry-pi-4/
https://www.cnblogs.com/xgqfrms/p/17436129.html
refs
Linux shell command
strings
All In One
https://www.cnblogs.com/xgqfrms/p/17428969.html
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