I finally managed to sort out the CubeMX/SW4STM32 error so I can move on a bit. The XPortHub (pictured above) is coming together very well. Sadly I have to upgrade this due to the Flash footprint error, so I will make some other adjustments as well. CubeMX auto-generate all drivers with pin-setting, FreeRTOS, USB driver…
I would like to simplify all Java applications, so I suggest I create my own Java 3 VM. It will only need one instruction: CRASH I had a project for XPortHub in CubeMX that worked well, upgraded CubeMX and shit hit the fan. Obviously the new CubeMX generate or don’t generate some script that SW4STM32…
Soldering 0.5 pitch components is a challenge to get right. My latest problem have been cold soldering. Meaning that pins look ok, but as I test them I have no connection. Not sure if this is lack of temperature, lack of solder tin or what, but I will have to find a more reliable way…
It is rare that I receive chips from China as unprofessional as these, but it does happen. I have no idea if these works at all yet, but we will see. If not the seller will loose out. I actually mounted a XPortHub, so we will see – but, this is why I want to…
This is the XPortHub mounted on top of a Rapsberry PI A+. The only lacking components are the SuperCap + the Serial Flash. I made the package for W25Q16 myself so I have no-one else to blame, but I have used a standard SO8 rather than the wider SO-8 footprint that I needed –…
My next project is actually a Hat for this TFT, so I was not happy to receive a broken display. The vendor sent it out in a bag and well – this has to go back sadly.
This would have been an awesome Hat, and I am “kind of” done routing the PCB, but my remaining challenge is the currents that I need to support. My PCB lanes for 36V+ is far to thin for 12-24A, so this will never work! This version of the Hat have 12 x Current Sensors. One…
One of the next tasks as I emerge from my marathon Hat designs is to wrap up an actual HAL (Hardware Abstraction Layer) in C++ for STM32F405. The Drivers from ST is named “HAL”, but they are low level drivers or merely C functions to interface to registers. They lack abstraction and normalized user interfaces.…
I purchased the breakout board above from ebay earlier, but as I contact KeyStone Semiconductors I am told that these boards have custom programming and that they have no info about the firmware on this module, so be aware – don’t buy these on ebay. I would like to use one of these modules to…
These 2.54 pitch spring terminals occupy more space than I hoped for, so I had to abandon current sensors on each DRV8313 to get room for them. The red areas are the spring connectors. The yellow is the MCU which I desperately need space around since I will be taking out close to every pin…