Newer X-Flash Builds

General homebrew games, programs and PlayStation PS-EXE's
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danhans42
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Re: Newer X-Flash Builds

Post by danhans42 » March 11th, 2020, 10:20 pm

Yes works fine at 1,036,800bps with a 1.5metre link cable. USB cable length makes no difference whatsoever in my tests.

Most USB UART ve found will work absolutely fine up to 2,000,000bps. Using RS232 voltage levels you are kind of stuck at 345,000bps.

I made the decision to keep nxflash at 115,200bps as there is seriously no need for it to be faster and it ensures that the software will work with everything, even if somebody wanted to use an old Yaroze serial cable or a Sharklink cable.

As I always say, genuine FTDI is the best to go for.. especially if its a full breakout board as you can use it for everything, and if fully wired you can also use for Yaroze/SIOCONS.
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rama3
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Re: Newer X-Flash Builds

Post by rama3 » March 12th, 2020, 12:14 am

Great info there, thanks :)

Just wanted to mention that, if you think about it, that FTDI original stuff is really outdated.
These modules perform an operation that every popular microcontroller has had a dedicated hardware unit for since maybe 15 years.
An STM32 blue pill for $3 would probably run circles around it, and that is like 10 years old now?

And if you get to the newer Espressif micros, well.. :D

But yeah, nxflash is something that needs to be rock solid stable. I agree with the 115,200 there.

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danhans42
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Re: Newer X-Flash Builds

Post by danhans42 » March 12th, 2020, 11:02 am

I still stand by FTDI, especially for Yaroze purposes, there isnt anything else available currently that offers the same handshaking flexibility, For non handshaking i find siliconlabs or the ch340 work perfectly fine. The CH340 is like around $2.

Espressif dont make anything USB currently, but yes I have tested the ESP32 with the loboris uPython port and its UARTS work well at the high speed. There is a firmware out there for the bluepill that offers a few usb serial ports, not tried it personally.
♥ PSX - http://psx0.wordpress.com

My collection - SCPH-102/SCPH-7502, Yaroze Modded PSone, PocketStation (Clear), 2x Xplorer Carts, 2x Xplorer Pro, 2x AR Carts (1 with Ezoray), GS Pro 3, ISA Comms Link Card. Various USB serial devices, Gameshark Sharklink, Kentai Eddy, iMode Cable & other bits and bobs.

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Re: Newer X-Flash Builds

Post by rama3 » March 13th, 2020, 6:56 am

Yeah, they have a mature solution that everyone likes using. I'll give them that.
It's just that manufactured hype, and the notorious device bricking, all over a pretty basic function, that irks me :p

On topic, I've successfully flashed a cart using nxflash the other day.
It was good to see the loading bar not hanging, as so often happened with xflash ;p

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danhans42
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Re: Newer X-Flash Builds

Post by danhans42 » March 13th, 2020, 9:14 pm

The notorious device bricking is down to counterfeit devices.. buy genuine its never ever an issue.

Glad to hear you have sucess with it, I don wonder how many people use it.
♥ PSX - http://psx0.wordpress.com

My collection - SCPH-102/SCPH-7502, Yaroze Modded PSone, PocketStation (Clear), 2x Xplorer Carts, 2x Xplorer Pro, 2x AR Carts (1 with Ezoray), GS Pro 3, ISA Comms Link Card. Various USB serial devices, Gameshark Sharklink, Kentai Eddy, iMode Cable & other bits and bobs.

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Re: Newer X-Flash Builds

Post by rama3 » March 13th, 2020, 10:08 pm

Well, the psxdev world (however big it truly is :p) needs a good source of serial cables.
It has to be cheap, be available to buy, but also have all the features + decent speed.

I was using a CD to flash the cart, but it sure was a hassle (again. It's always a hassle to re-learn how to work all these tools :p).

Something like your offer from ages ago would be perfect. A cable that plugs into the port and has the USB conversion built in.
This would then have to be stocked (in little quantity) at some of the popular retro stores we have today.
It wouldn't make much money, but it would bring in all those developers that fail at the required hardware step.

Edit:
Or your WiFi Serial project.. Both of those would be good options.
I think the only real issue here is the PSX connector :p

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Re: Newer X-Flash Builds

Post by sickle » March 20th, 2020, 1:51 pm

rama3 wrote:
March 13th, 2020, 10:08 pm
Edit:
Or your WiFi Serial project.. Both of those would be good options.
I think the only real issue here is the PSX connector :p
Yeah, I did buy a few cables, but it was easier just to solder some wires in and screw an arduino to the lid. Some actual cables would be great!

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Re: Newer X-Flash Builds

Post by rama3 » March 21st, 2020, 5:35 am

It would be a project that wouldn't generate any money, due to extremely low demand.
But once or twice a year, I expect that someone needs such a cable, or else they won't develop for the PSX.
It's a pity, too, since other than the interface, the hardware is greatly accessible!

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