Using a rasberry pi/arduino to emulate a ds cart

[tntcraft]

Idea is: get a bunch of wires connecting rpi with the cartridge slot, make the rpi emulate a cart , and use this to make a debug cart

 

[ghjfdtg]

It's not fast enough. People tried it. The protocol requires very precise timing and low latency you can't archive with a normal Raspberry Pi/Arduino. A Pi Pico is just about able to do it using PIO but it's pushing the limits.

 

[KleinesSinchen]

@Sono somewhat did this if I remember correctly.
https://github.com/SonoSooS/pico-ntrbootleg

 

[tntcraft]

@Sono somewhat did this if I remember correctly.
https://github.com/SonoSooS/pico-ntrbootleg

any other microcntrollers? I dont have a pi pico but i do have an arduino sense ble

Post automatically merged: Jun 15, 2023

any other microcntrollers? I dont have a pi pico but i do have an arduino sense ble

nano 33 sense ble

 

[Sono]

any other microcntrollers? I dont have a pi pico but i do have an arduino sense ble

No, sadly. The Pico has special programmable hardware in it which make this barely possible.

The strict timing makes it impossible to use other microcontrollers or microprocessors. Even if you have a regular Pi clocked above 1GHz, it still won't work reliably due to it running under Linux, and interrupting your tight loops for so long that you miss a cartridge clock edge.
As for regular microcontrollers, they don't have nearly high enough clocks to be able to spinloop the CPU on them.

You either use an RP2040-based board, or get an FPGA, there is no in-between.
Alternatively you can get something running above 1GHz, but you need to be able to disable interrupts, which is usually not possible.