This demo is a bit in the early stage, but I am using C# and .NET 4.7.2 for a simple test. I developed in C# a few years back and was a bit dissapointed over performance. But, I notice that this have improved dramatically with later .NET versions so I am putting it up for…
I have so many Hat’s by now that I try to make some systematic documentation on them. This drawing is part of what I call “Annotated Schematics” to document the design and collect notes needed for working on the Hat. This example is one of my more powerfully Hat’s as it contains 12 separate…
I have started assembling the first PWM12 board and this is the current sensor I use. It will probably work ok, but the circuit lack two important components. One a small capacitor between CSense and ground and secondly a TVS between the same. The reason is I could have needed those to protect the MCU…
This is basically the same diagram as I drew before, but with a few more details.
Soldered up a new board just to realize that DRV8301 was bust as well, so replaced DRV8301 and Buck converter is actually working. I am getting 3.4V just enouth for SPX3819 to give 3.2 out and the MCU ticks at 168Mhz. Looking at datasheet I also see that I have done correctlt – EN_BUCK should…
One key component of any Parser is the Expression Parser. This one is used to parse mathematical or logical expressions into a list of micro-statements. Plain have a separate instruction to execute math, but the parser need to build the list correct. Example : 4 + 5 * 3 If we add 4+5 we get…
One of the challenges I have with Worldpress is to be able to show source code in here, so I apologize for the bad quality on the examples above. The examples show one of my Plain test examples in 2 different syntax styles. the one to left is the currently chosen one and the one…
The Assembler itself will read Plain source code and generate a RTL file that is downloaded to the device. RTL (Real Time Linker) is located on the target device and will convert RTL format to executable Plain VM instructions. Most modern Assemblers are very similar to Compilers. The main difference is that the Assembler have…
I started this blog with a Train Control System that basically failed big time on the positioning system. The solution I attempted was possible, but to large and expensive for small model trains. I later upgraded the control system to ESP32 which definitely is the path forward, but it is time to make another attempt…
I have done a mistake by leaving EN_BUCK floating. The doc is a little vage around this area and I have copied that from other references that probably was not using the Buck Converter. The buck converter works, but it seems to give very little out. 168Mhz uses more than 84Mhz and power starts misbehaving.…