petalinux

Yocto u-boot Custom Commands

由 ＊爱你＆永不变心＊ 提交于 2021-02-10 19:56:52
问题 What is the correct way of adding custom commands to u-boot in a Yocto setup (currently using Petalinux 2016.4 by Xilinx)? Should I add the relevant source files to the u-boot source through a recipe/patch, to be included in the compilation of u-boot? Is there a better way to do this during development to get a faster turn around. In what folder should the code be placed - under u-boot/board or added to u-boot/commands? Thanks 回答1: IMHO you have two options for adding the additional

Uncompressing is not happening with zImage while booting up with u-boot

由 女生的网名这么多〃 提交于 2019-12-13 03:23:32
问题 I am working on microzed 7010 board, I have manualy compiled kernel, u-boot, fsbl, and .bit (vivado). Board is booting well with all setup (without using petalinux). But i have noticed that kernel is not Uncompressing kernel... with zImage nor uImage. whereas i can see bootlogs with that of petalinux's images. INPUT : 1 . zImage env is zImage=tftpboot 0x3000000 zImage && tftpboot 0x2A00000 system.dtb && bootz 0x3000000 - 0x2A00000 2 . Boot log is => Zynq> run zImage [2017-10-25 15:57:11

How to build when multiple source files in rootfs in embedded linux?

由 戏子无情 提交于 2019-12-08 11:00:19
问题 This question was migrated from Unix & Linux Stack Exchange because it can be answered on Stack Overflow. Migrated 2 years ago . I have a simple c application Ctest.c file #include <stdio.h> #include "new.h" #include "new.c" int main() { switching(); return 0; } and i have those new.c and new.h files. new.h file as void switching(); and my new.c file as void switching(){ char grade ='B'; switch(grade){ case 'A': printf("Excellent\n"); break; case 'B': printf("Super\n"); break; case 'C':

How to unbuffer stdout of legacy running binary without stdbuf and similar tools

由 微笑、不失礼 提交于 2019-11-29 07:58:15
I want to monitor the realtime output of a program that I will start. I am trying to do this by redirecting the output of the program to a pipe and then reading the pipe from a monitoring script. ./program >> apipe then from the monitoring script cat apipe However due to the buffer in >> there is no output. Anyway I can disable this buffer? I am running on a barebones embedded system (petalinux) so I don't have access to unbuffer, script, or stdbuf to help me out. I have tried the scripts on another platform where unbuffer is available it works as I expect. Any way I can configure this buffer,

How to unbuffer stdout of legacy running binary without stdbuf and similar tools

由 爱⌒轻易说出口 提交于 2019-11-28 01:37:12
问题 I want to monitor the realtime output of a program that I will start. I am trying to do this by redirecting the output of the program to a pipe and then reading the pipe from a monitoring script. ./program >> apipe then from the monitoring script cat apipe However due to the buffer in >> there is no output. Anyway I can disable this buffer? I am running on a barebones embedded system (petalinux) so I don't have access to unbuffer, script, or stdbuf to help me out. I have tried the scripts on
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