Serial Bridge (working, but downloading forever)

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wallyB
Posts: 6
Joined: Fri Mar 03, 2017 8:32 pm

Serial Bridge (working, but downloading forever)

Post by wallyB » Sun Mar 05, 2017 1:53 am

Hi,

Maybe this is normal, but I don't think so.

I purchased a license. Got user Name and Passord.
Hooked up Gotek to Serial Port DB9 (pin-2,pin-3,pin-5) on a Window XP PC.
[Tx-Rx] [Rx-Tx] [gnd-gnd] (Pc-Gotex)

I ran Serial Bridge.
--> Checked PC com setting:
--------> Bits per second [115200]
--------> Data Bits [8]
--------> Parity [None]
--------> Stop Bits [1]
--------> Flow Control [none]

Logged in via Connect. All good.

Software Bridge:
Status [Link Up!]
Com Port [Com1]
Status [Serial interface set to Com1]

Gotek: (+5V, GND) from PC Floppy Power Connector(

(jumper J3(boot0)<-> ( Vcc 3v3) for programming mode)
--> then briefly (RST->ground) )

I get a Single byte Tx[1], and it starts downloading Tx[counting up]. Which looks good!!

This goes on forever Tx[615229779] and counting Rx[1] stays at 1

Been running for 6 hours. Is this normal. Should there be a Rx-Count?

What could be wrong, or what do I need to do. Wait more (What is the final Byte count for download)?

wallyB
Posts: 6
Joined: Fri Mar 03, 2017 8:32 pm

Re: Serial Bridge (working, but downloading forever)

Post by wallyB » Sun Mar 05, 2017 6:04 am

I made a mistake with the Tx/Rx wiring.

The Tx and Rx wasn't really flipped Rx/Tx & Tx/Rx (since I was looking at the PC connector reversed).

I corrected the wiring and Now nothing happens.

What I didn't mention is I don't get:

"Device detected" after hitting CONNECT

It stay as "Serial Interface is set to COM1"

wallyB
Posts: 6
Joined: Fri Mar 03, 2017 8:32 pm

Re: Serial Bridge (working, but downloading forever)

Post by wallyB » Sun Mar 05, 2017 7:29 am

I think I figured out my problem with FLASHING the Gotek via HxC bootloader.

The Port on the PC is Serial Indeed, but it's RS232 which means Voltages around 12v or possibly higher (to handle those long Serial cables mean for Modems)

These Gotek's want TTL voltage 3.3V, or preferably 5V.

I thought I could get away without getting $2 a USB to UART. But appears not.
I need a proper USB/UART.

There is a trick where you can use a Audiuno for a UART by jumpering RESET to Ground, and then the Ardiuno Tx,Rx pins become pure TTL serial.
But the problem is Aurdiuno shows up as COM 11, while Serial programmer only picks up standard Com3,4.

So I'm hoping that the local Electronic store that sells Audino will have a USB/Uart tomorrow.
It will then work.

Jeff
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Re: Serial Bridge (working, but downloading forever)

Post by Jeff » Sun Mar 05, 2017 11:28 am

wallyB wrote: I thought I could get away without getting $2 a USB to UART. But appears not.
I need a proper USB/UART.
Exactly.
wallyB wrote: There is a trick where you can use a Audiuno for a UART by jumpering RESET to Ground, and then the Ardiuno Tx,Rx pins become pure TTL serial.
But the problem is Aurdiuno shows up as COM 11, while Serial programmer only picks up standard Com3,4.
COM11 or COM 11 ?

if this is COM11, the software should work with it.

wallyB
Posts: 6
Joined: Fri Mar 03, 2017 8:32 pm

Re: Serial Bridge (working, but downloading forever)

Post by wallyB » Sun Mar 05, 2017 6:25 pm

Simple solution for RS232 to Gotek Serial Input/output pins


Commerical RS232 Converter.

https://www.sparkfun.com/products/449

Or built your own like this

http://picprojects.org.uk/projects/simpleSIO/ssio.htm

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