A USB device's D+ and D- have pull-up and/or pull-down resistors to identify the device as low-speed, full-speed, or high-speed. If you reverse D+ and D- the USB host gets confused.Lob0426 wrote:I don't know why reversing them sometimes works. It is always worth trying!
That's a nice idea and quite feasible. As always with these projects, the hard part is selling enough boards to get the price down to something affordable.mahjongg wrote:you want an FPGA with a "new model" of the PI?
Simple, just have a Compute Module IO Board designed that contains an FPGA!
I'm sure you mean ASR-33. PDP-8 ASM requires a certain amount of masochism, but a KSR-33 is a bit muchmvbii wrote:I first learned PDP-8 assembler (key in the boot loader, then start up your KSR33 to load the assembler and your code)