当前位置：网站首页>Anfulai embedded weekly report no. 272: 2022.06.27--2022.07.03

Anfulai embedded weekly report no. 272: 2022.06.27--2022.07.03

2022-07-07 01:01:00 【Tough guy eric2013】

Summary address of previous weekly reports ：http://www.armbbs.cn/forum.php?mod=forumdisplay&fid=12&filter=typeid&typeid=104

Update a video this week ：

DSP Video tutorial 9 period ： be based on Matlab Of WiFi How to upgrade wireless firmware

https://www.armbbs.cn/forum.php?mod=viewthread&tid=113546

Video version ：

https://www.bilibili.com/video/BV1cf4y1Z7iY

1、 The most cost-effective in history , Based on raspberry pie MCU 24 passageway ,100Msps Open source release of logic analyzer , Everyone can control himself easily

This open source is provided by foreign netizens gusmanb bring , Thanks for open source , Just open source , It's still hot , It will be continuously updated and maintained later .

https://github.com/gusmanb/logicanalyzer

link ：https://pan.baidu.com/s/12AjJiO9XdV6nQQ9F22R6RA Extraction code ：o0qd

（1） Hardware aspect , from 5 A piece of raspberry pie with a chip of RMB RP2040 Do it on your own , It's also very simple for everyone to make their own closing boards , To buy a 30 Yuan a raspberry pie Pico The board , And close one KiCAD The designed trigger design bottom plate is enough .

The hardware of logic analyzer is relatively simple , Currently supported edge trigger detection , Code type trigger .

Raspberry pie Pico Stick the board on this

（2） The software adopts VSCode + GCC + Cmake Way to create a project , It doesn't matter if you won't , Because the raspberry pie chip comes with one U Firmware upgrade by disk dragging , This chip is solidified in the factory . You just need to put the author's LogicAnalyzer-1.0.0-firmware.uf2 Drag it in , Other functions need to be added , Magic change compilation project .

This PIO Documents are the essence , Raspberry pie can achieve , Mainly thanks to its own programmable PIO, Just follow FPGA almost .

（3） Upper computer , use .net6, The advantage is to support cross platform , The current author has only done Windows Downloaded from the platform , Later launch Linux and MacOS platform . Early design , The author uses some open source analyzer software for testing , But the author doesn't like it very much .

So I personally designed a new upper computer , It's not bad .

2、 Gather together X86,ARM and RISC-V Instruction set diagram

ARM,1920*1080p, The lower right corner of the author key .

X86, See the lower right corner for the author ：

x86_opcode_structure_and_instruction_overview.pdf (74.52KB)

Cut down , It's good to be a desktop

RISC-V Instructions , See the upper left corner for the author .

RISC-V-cheatsheet-RV32I-4-3.pdf (174.94 KB)

Vectorgraph ：

3、IC Insights：TOP5 MPU Processor manufacturers occupy the world 86% market share

Contains a computer processor , Mobile phone processor and embedded processor .

TOP5 Intel , Apple , qualcomm ,AMD And the United Development Section , Five of them occupy 86% The market of .

The first 6-10 The names are ： Ying Wei Da , samsung , Purple highlights , Huawei Hisilicon NXP, These five companies account for a total of the world 4.3% Market share .

4、 Raspberry pie SCM new kit Raspberry Pi Pico W Release , With wifi Bluetooth two in one module , The price of the kit is only 6 dollar

https://www.raspberrypi.com/news/raspberry-pi-pico-w-your-6-iot-platform/

5、 The quadruped robot similar to Boston power big dog is open source BLDC Motor controller MOTEUS Ushering in a major upgrade .

https://github.com/mjbots/moteus
https://jpieper.com/2022/06/30/flexible-i-o-worked-examples/

Software and hardware are all open source .

The control board is based on STM32G4 Design , This upgrade adds a flexible I/O Subsystem , It expands the types of feedback encoders and peripherals that the controller can receive .

In addition, the author has several very strong video effects , If you are interested, you can also have a look .

6、RS485 The bus realizes the power transmission scheme

RS-485 Power Over Bus.pdf(388.3 KB)

The solution is TI Provide ：

7、Vim9.0 Release , It was updated again after two and a half years

https://www.vim.org/vim90.php
https://github.com/vim/vim

The core of this update is Vim9 Scripting language support , Expected to bring 10 To 100 Double the speed .

8、ST Release the next generation Bluetooth chip BlueNRG-LPS

https://newsroom.st.com/media-center/press-item.html/n4464.html

This series is suitable for position tracking and real-time positioning applications .

specifications ：

block diagram ：

Kit ：

9、ThreadX Of LTS Long term support issues

Currently, it is for each large version number , Such as V6.X,V7.X, V8.X Provide 5 Years of support , Each minor version number , Such as V6.0.X, V6.1.X, V6.2.X Provide 24 Months of support .