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robinsonb5 / SDRAMStressTest

Uses the SDRAM controller from TurboGrafx16 to give an SDRAM chip a heavy workout.
GNU General Public License v3.0
2 stars 4 forks source link

Test Core & stress core #1

Open Julitium opened 2 years ago

Julitium commented 2 years ago

hello Robinson, I have seen that you have great activity in test cores. would it be possible to do a test-core for mist? Example.

RAM Pass/Fail. ARM Test. SOUND Test. VIDEO Test VGA/RGB.

I would also like to know if I can download the stress SDRAM in RBF format for Mist. Thank you very much.

robinsonb5 commented 2 years ago

The SDRAMStressTest is actually intended for DECA and MiSTer in particular, because on both those boards we have SDRAM on a removable module connected to the FPGA via a 40-pin header, which is a recipe for horrible signal integrity. The reason I wrote it as a MiST core is simply that I have a framework for porting MiST cores to other boards, so I use MiST as a kind of standard "API".

A general diagnostics core is a good idea, though - testing RAM, Video and Sound is straightforward enough, and having something to test keyboard, mouse and joysticks would be useful, too, since capturing the serial output from the ARM isn't trivial for non-developers.

Julitium commented 2 years ago

Hi Robinson, I'm glad to hear that you think it's a good idea (on any system they are basic tools.), On the one hand, developers have a tool to compare hardware. and on the other, the technicians/engineers can quickly diagnose a possible fault or simply check that our system is in "full health". For Fatal errors I suggest that the core could be loaded via an alternative way (USB, embebed FW, ETC) and with results using the 3 leds. imagine that the SD reader does not work!! XD. Either way, I'm sure it tool will be a great help. all the best.