Category: Embedded Development

Linux Ethernet Switch/Router Hat

The most obvious Hat to use HLK-7688A on is a Ethernet Switch or Router with SPI backbone support. I have ordered a dev unit so I can test out this possibility. The Ethernet switch part is very straight forward, I also see a very decent SPI, but I need to dig a bit more into…

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The Age of Linux

Linux started seeing a serious increased usage in embedded projects with raspberry PI due to it’s availability and low cost. And the last years have provided a large number of low cost embedded Linux solutions. They are getting smaller, more powerfully and decreasing in cost making them very attractive in projects. Raspberry PI might still…

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STCubeIDE Review 2

I have struggled a little to find an IDE I was OK with, but finally settled with STCubeIDE or Eclipse as it actually is. This is IMO one of the smarter moves that ST have done to support their MCU’s. The editor is “ok”, it compiles, download allow you to debug multiple targets + I…

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DSO150 Oscilloscope Annotated

DSO150 is very easy to use and operate like a multi-meter, and this caught my attention because the other Oscilloscopes I havve needs to be set up. DSO150 is basically only to switch on and use like a Multi-meter – you instantly see the signal and it was surprisingly easy to operate the HMI. I…

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DSO150 – 20$ Oscilloscope

This Oscilloscope took me by surprise. I ordered it mostly for fun, but it turns out to be very functional and easy to operate Scope in a multi-meter format. 200Khz actually cover a lot of the activities I do and by attaching a battery you get a very handy, single channel Oscilloscope in a handy…

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Rock PI 4 b

I accidentally came across “Rock PI 4 b” and first believed it was about Raspberry PI 4 as I realized this is a board based on Rockchip RK3399. It is very similar to Raspberry PI 4, but contain some very interesting differences. Of most interest for me is that the form factor and GPIO pin…

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STCubeIDE – Multiple Debug Sessions

I am using 2 x XPortHub cards called Left and Right in the debug config. The picture show both cards being debugged in single step at the same time – I am impressed! This was exactly what I needed right now. The only trick is to start the GDB server on different TCP ports +…

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STCubeIDE

ST have lately purchased True Studio, so it was not a big surprice to see that True Studio now is merged with CubeMX. I am not a big fan of Eclipse based IDE’s, but this one is great for getting you project off ground fast. CubeMX saves you a few hours as you start the…

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New SWD Adapter

First draft of a new SWD adapter designed to be installed/removed while the Hat is inside the stack. SWD on this will work even if you miss a row while connecting because Reset is pushed to 3.3V and all other signals are duplicated on both rows.I will make another using ST-Link V2 connector directly. Currently…

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USB on STM32

J7 above is the USB connector on my Hat’s and 44/45 at right is the connection to the MCU. This is all you need to do to have a working USB connected to an STM32. Software is even easier if you just want a serial port. You just install STM32 Virtual Serial port driver for…

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