skimask

Does anybody make an RS232 compliant cable for the x50v yet? One that uses the real +/-12v voltages, probably has an external power connection...not one of the cables that only goes to a GPS unit, or only goes to a cell phone, but one that does bidirectional REAL RS232 serial signals? Has anybody bought and used one successfully?

And while I'm on the subject...
How about a program like Windows HyperTerminal that would be compatible with the cable mentioned above? I've got the eVb package loaded up into the laptop and have made a few simple-ish programs for the x50v (I know my way around VB and VC, but prefer VB even though it's outdated). I haven't been able to figure out how eVb does it's serial comm's, it's probably staring me right in the face and I've missed it or it's just not there.

I do a lot of interfacing stuff with Microchip PIC's and Atmel types. It would be nice to have a generic interface to work with (controlling a circuit thru a serial port) instead of designing a custom keypad and LCD everytime I start a new project.

That is unless somebody has a better way that's quick and dirty to get I/O from the Axim...
Lo-speed bi-direction IR? Too slow and short range
Wireless 802.11b? Too much hardware at the other end, too much programming at the Axim end
I even thought about trying to use the headphone/microphone jack and a sort of bi-directional DTMF setup...far far too slow.

__________________
skimask

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
SMT Adapter Modules
MP3 Player

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
KrOmAtOoBz
Extreme Lighting...Extreme Cars...

sirdoalot

I am looking for the same as you got a cable from
SERIALIO in the states works fine with a us robotics serial modem at 9600Baud
I have writen a really usfull prog with VBA but without spending loads on .NET pro can not find away to do the same on my X30-625
Hyperterminal would at least be a start if it was on 2003se
I will keep trying I do not give up easy

bigbop

If you go to the TELETYPE GPS support site, there is a free download of tty.exe for ARM ppc. It is a barebones tty app with line control.

KPDUTY

Cable: http://search.store.yahoo.com/cgi-bin/nsearch?catalog=gomadic-new&.autodone=http%3A%2F%2Fedit.store.yahoo.com%2F RT%2FNEWEDIT.gomadic-new%2Fdcd486d3b5a7%2Fnsearch.html&query=dell+x50+r s-232&x=15&y=8

Software: vxhpc [www.cam.com] or my best solution: Procomm Plus ASP script language running under Pocketdos [www.pocketdos.com]. ASP is very powerful compile script that runs flawlessly under Pocketdos. I've written quite a few scripts to control/capture data on RS-232 devices using Dell X5.

Good Luck ...

bigbop

Gomadic cables only support rx & tx lines. I think SERIALIO cables have rts, cts, etc. Others here have posted that Gomadic cables may not be true rs232 levels. You'll have to search on this.

sirdoalot

Hi again
In case anyone is looking for the same Hypertermial software as me.
Check out Ttl.exe at http://www.bisque.com/ put TTL.EXE in search you will have to sign up but its free. I have tried Ttl out on my ECU and it worked first time no problems. I was using the serial lead from SERIALIO with no mods to the lead.
Another program is vxHpc from cambridge computer corporation have't tried it but has good reports from bevhoward.com along with some usfull information on serial stuff.
vxHpc is a 30 days evaluation with a 30$ licence free.
MY THANKS TO dooroo62 for steering me in that direction.
All I need now is to Live Read/Write to my device any help would be worthy
I pasted this from my thead and have just read the new threads that sugest the same I can comfirm
the Ttl.exe and SERIALIO cable works fine on AXIM X30 625

bigbop

Originally Posted by sirdoalot

Hi again In case anyone is looking for the same Hypertermial software as me. Check out Ttl.exe at http://www.bisque.com/ put TTL.EXE in search you will have to sign up but its free.

No need to sign up - get it here immediately: http://www.teletype.com/downloads/tty.zip
This is version 1.0.3. Version 1.0 is from the MS PPC SDK examples.

bigbop

I just relaized that Dell has a CF serial interface on their website for $49 - It's just that you will have to build an RS232 level shifter for it because it's normally used with the Pharos GPS-360 module.
Have a look here: http://accessories.us.dell.com/sna/p...&page=external
And you get a nice interface cable as well!
Pinouts for the Pharos GPS-360 are here: http://groups.google.com/group/sci.g...t&rnum=1&hl=en

Now, I'm not saying this provides all the EIA RS232 signals, but it does provide 3v TTL Rx & Tx lines, so I bought one to play with. Will let everyone know how it works.

bigbop

Originally Posted by bigbop

I just relaized that Dell has a CF serial interface on their website for $49 - It's just that you will have to build an RS232 level shifter for it because it's normally used with the Pharos GPS-360 module. Have a look here: http://accessories.us.dell.com/sna/p...&page=external And you get a nice interface cable as well! Pinouts for the Pharos GPS-360 are here: http://groups.google.com/group/sci.g...t&rnum=1&hl=en Now, I'm not saying this provides all the EIA RS232 signals, but it does provide 3v TTL Rx & Tx lines, so I bought one to play with. Will let everyone know how it works.

My-O-my - got it less than 24 hours after ordering from Dell.ca - and it's a true CF SERIAL (TTL only) card!!! :approve: :approve:
Here's what my X50v sees:
PNP name: CF_CARD-GENERIC-A569
Port: comm 4
Dev ID: 43
Socket: 0
Driver: serial.dll
Rgy entry: drivers\pcmcia\serial

So now I'm trying to carefully open the case so I can see what the pin connections are.
I DO know that even though there are 12 pins, they are doubled. There are actually only 6 pins used and the external cable connector that fits over the GPS module connector only has 6 wide pins inside.
There are two GND, 1-Vcc, Rx & Tx. I need to figure out what the 6th pin does.

UPDATE:
The serial chip inside the CF card is an Oxford Semicondictor OXCF950: http://www.oxsemi.com/oxford/documen...t/OXCF950.html
The CF card pinout:
(pin 1 is at the top of the picture)
1,2 - Gnd
3,4 - 3V
5,6 - Gnd
7,8 - Rx (0-3v into the CF card)
9,10 - Gnd
11,12 - Tx (0-3v to the GPS)

The following are not connected on the OXCF950 chip:
DTR, RTS
The following are tied to +3V on the OXCF950 chip:
RI,DCD,DSR,CTS

There is enough open space on the PCB to mount a MAX3232 (surface mount package) and to bring out the wires though the plastic housing to a DB9 mounted on the back. That way, you can still use the CF adapter with the Pharos GPS if you wanted to.

Sorry about the crappy pix taken with a Treo600
Stay tuned......

Pc-Mobile

Why bother with it if it is only TTL?
X50/51 has TTL serial port in the bottom connector.

bigbop

Originally Posted by Pc-Mobile

Why bother with it if it is only TTL? X50/51 has TTL serial port in the bottom connector.

If you were in electronics as long as I've been (>30 years) you would learn that you should always offload interfaces to hardware specifically designed for that purpose. In the case of my Axim, should something happen to the equipment I'm connected to, I would rather have a replacable plug-in interface damaged than my Axim. Besides, there is still some question on the accuracy of the "AximBob" pinout diagram. I just found that Pin 7 is a switched 3v power output, not an input as shown. Others still are not sure if the DTR, DSR, CTS & RTS pins are correct.

If you have verified the correct X50 serial interface pinouts 100%, maybe you'd like to confirm it here in the forum once and for all.

There are also many experimenters here who like to push the limits of their equipment. Now that I hace identified an inexpensive serial CF card that only needs a MAX3232 for true RS232, others can make use of it.

Case in point: Most USB puck type GPS receivers are actually 3V serial devices that can be interfaced to this CF card directly after removing the internal serial to USB bridge chip. I've already done this.

pooky

I agree with PC-mobile, who wants TTL Serial?
Why bye a $49 CF serial card (taking up a cf slot) to get a TTL level serial port?
People in this thread are looking for a suitable RS-232 cable (try http://www.serialio.com/products/ada...rial_RS232.htm and at only $40)
:approve: