Lawrie Griffiths

The LD Vx, K instruction is not working - it does not set Vx. I made this change to cpu.v - https://github.com/lawrie/fpga-chip8/commit/92f742176f9bad927bd273e5018940deaa17336f#diff-f7360161250bb9c3cb8b38cb3c6e6543 After that, more programs such as connect4 and...

I am having a problem running the CPU with the [rom for the APF M1000](https://orphanedgames.com/APF/apf_rom_and_cart_source/APF_ROM.asm) The problem is that I am getting intermittent stack corruption. The symptom is that a...

Reusing FPGA pins for GPIO and other peripherals

4

For microcontrollers and systems like Arduino, it is common for the same pins to be used for GPIO and one or more other peripherals. For the output pins, a mux...

Problems with TopLevelGen

12

When I do `sbt "runMain Spinal1802.TopLevelGen" I get a width mismatch error. segdis seems to need to be 12 bits not 11 bits. I am a bit confused about how...

I am using VirtualBox 6.04 on Windows 10, running Ubuntu 19.04. Most of the time the cat statement hangs with no output on /dev/ttyACM0. Sometimes the hanging process can't be...