Survey, my first Linux operating system is Ubuntu. I started to use Linux in the summer of 2009, and installed Ubuntu 8.04. Then, although I have used Fedora, Red Hat, Debian, SUSE, etc., I always fee
[i=s]This post was last edited by caizhiwei on 2015-12-6 17:17[/i] Although the board sent by the administrator cannot be used, the task still needs to be completed. So I took the time to port ucos-ii
I made a player with DAC and an amplifier with LM386. I want to ask if I need to add a filter circuit before connecting the DAC output to the LM386 input? I don't know why, but the noise is so loud.
C language tests are a necessary and effective method in the process of recruiting embedded system programmers. Over the years, I have both participated in and organized many such tests, and in the pr
When we use RISC-V GCC for embedded development, we have to deal with startup files and link files. This article records some learning notes related to link scripts.
1. Basic concepts
The main purpose
[b]Step 1: Open QQ Step 2: Click on the application management in the lower right corner of QQ. Step 3: Click on QQ Express Step 4: Select a logistics company Step 5: Enter the express delivery number