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When I run the lesson01, I can see "Hello World" displayed on my screen normally, but when I use printf in the lesson02, my screen does not display "Exception level: 3" or anything.
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Hello.
I got Coral TPU working but kernel only load apex_0, i am using the Dual PCIE adapter.
any ideas?
(Proxmox 8.2 but the same with 7)
dmesg|grep apex
[ 12.540683] apex 0000:09:00…
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# 总结
- https://blog.csdn.net/qq_37109325/article/details/80218892
- 32位处理器每个寄存器就是32位的,可以存储4字节的数据
- ARM7有两套指令系统,分别为ARM指令集和Thumb指令集。
- 理论上,PC寄存器应指向即将执行的下一条指令的地址,由于ARM存在的指令流水线,实际是偏移了8位
- 具体地址 = 总线基地…
cisen updated
4 years ago
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Hello,
Thank you very much for all your efforts on this,
I am testing the build on an Orange Pi 5, and am looking to boot from usb. While it appears that I am effectively booting from usb after …
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# 11_ARMv8_异常处理(二)- Legacy 中断处理
异常处理还没有完成,在异常处理(一)里面算是把ARMV8a上面的一些比较基本的异常相关的知识罗列出来了,但是还没有具体的分析。在ARM的世界,中断是异常的一种。这一节的目标是利用Linux内核研究:
* ARMv8架构下的中断处理过程?
* Linux内核在ARMv8a的架构下中断是如何处理?
* ARMv8a中断一些…
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Hey!
I've tested this code using an Arduino Nano + Level Shifter and it worked like a charm! As I want to design the smallest possible PCB so that it fits into my Fanatec QR Adapter (52mm to 70mm) …
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I designed an h313 board,I can use the sd card boot uboot and linux ,in linux i tested emmc driver it is ok 。it can work steadily for hs200,but when i use emmc boot,spl boot but uart print :
mmc_loa…
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I've been trying to implement hardware SPI on AVR baremetal. IC is an Atmega64 running at 12 MHz. I even tried to hardcode SPI speed but nothing is being showed. This is what I did following the Ardui…
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I have to unplug and re-plug the device for it to boot up again.
Same thing happens with Armbian.
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Hello, I am working on adding a secure timer interrupt in OP-TEE OS on ZCU102 development board.
I've see the issues #6570, #2925, and #1701.
I followed the codes from #6570, but it seems I mis…