FPGA based Mandlebrot set generator

Mandlebrot Set Generator As I said in my last post, I implemented a Mandlebrot set generator in my STM32. Even though it was running at 64MHz, generating the set took a fair bit of time, slow enough to not even maximise the fully available SDRAM capacity at the time. At this point, I decided to […]

uHMCU – Alpha 0.1

After a pretty large redesign, I can now safely say that the uHMCU is in alpha stage! I’ve ironed out most of the bugs for my USART module and can now both send and receive data. I tested it up to 115200 baud with the USB <-> USART bridge on my FPGA board and after […]

uHMCU 7 – USART

I posted about my microcontroller design a couple of posts back. As it turns out, I had actually designed it wrong! I didn’t have the pipeline fully sorted meaning I couldn’t properly execute some instructions and some things weren’t working properly. After a quick stack overflow¬†question, I realised the error of my ways and figured […]

uHMCU FPGA Implementation

Having already designed the microcontroller in a simulation environment, I wanted to take it to the implementation phase. I’d previously shown an implementation of a timer in simulation so keeping the same test program, I wanted to make sure it worked in implementation! Firstly, I decided to replace the simulation ROM and RAM for IP […]

Enter the uHMCU…

It’s been a while since I’ve sat down to do some proper VHDL but today (after MASSIVE advances with the Phobass these past few days), I’ve decided to write a miniature version of the HMCU. I say miniature in the lightest sense. Features: MISC architecture featuring 9 Instructions 16bit processing capability (22bit program word length) […]

Return of the HMCU…

Well! It turns out I’m coming to the end of my work placement (booo!) but boy have I learnt a lot. A lot of my work consisted of writing VHDL, along with testing its functionality in a simulation environment. I’ve learnt about text file parsing, different methods of structuring your VHDL code, along with good […]

SSD1306 VHDL FPGA Implementation

I’ve been reading up as much VHDL as possible these last few days as I’ve recently found out that the majority of my summer is going to consist of writing it! After seeing loads of implementations for HD44780 16×2 character based LCDs, I couldn’t find any examples for the easy to get LCDs (by easy, […]