Searching \ for 'Problems with Parallax programmer' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: massmind.org/techref/microchip/devprogs.htm?key=programmer
Search entire site for: 'Problems with Parallax programmer'.

Truncated match.
PICList Thread
'Problems with Parallax programmer'
1998\01\27@085435 by Leo van Loon

flavicon
face
Hoi!

As beginner in PICworld I bought a Parallax hobbyist programmer.
I can program my 12C508 PIC's but only sometimes with a 'device programmed'
result. Reading, verifying and erase check have every time another result,
often with 'NO PIC-PGM DETECTED' as result

I use an AT-PC with standard parallel port for programming. I have the
impression that communication between PC and programmer is not correctly
timed.
Is there anyone with the same experience and the solution for this problem?

Leo van Loon
SBB simpeltronics
Meerweg 9
6681 BC Bemmel
Netherlands
tel +31 (0481) 450034
fax+31 (0481) 450051
mail spam_OUTsbb.simpeltronTakeThisOuTspamtip.nl
url http://www.tip.nl/users/sbb.simpeltron
SBB simpeltronics ontwikkelt technische projecten voor basisschool en
basisvorming
SBB simpeltronics develops technical projects for children from 10 to 14
years

1998\01\27@125958 by Andy Kunz

flavicon
face
>As beginner in PICworld I bought a Parallax hobbyist programmer.
>I can program my 12C508 PIC's but only sometimes with a 'device programmed'
>result. Reading, verifying and erase check have every time another result,
>often with 'NO PIC-PGM DETECTED' as result

You might have the wrong firmware version.

A Windows 3.1/95 upgrade (needs hw also) is available from
http://www.carmacon.com

Andy


==================================================================
Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA
==================================================================

1998\01\29@070102 by Tom Handley

picon face
 Leo, I have the Parallax programmer which included the cable and
power supply. I assume you had to `roll your own'. The first thing to
check is that you are running SPASM/SPEP v4.7 and have the right
firmware chip. It looks like you do since you can program the 12C508.
The next thing I would check is your connection to the Parallel port.
Keep the cable as short as possible and make sure you have a good
ground. Have you tried programming a 16C/F84? If that works, your
interface should be fine. Are you sure your 12C508 adapter is wired
correctly? I made a simple 12Cxxx adapter mounting an 8 pin DIP
socket on a 28 pin DIP header. It works fine. I normally have the
40 pin adapter connected to the 26 pin header on the programmer
board but if you want to use the header the connections to the
12C5xx are:

     (looking at the board with the header to the right):

     Header   12C5xx        RTCC o o MCLR
     ---------------        Vdd  o o OSC1
     Vdd      Vdd           Vss  o o
     Vss      Vss                o o
     MCLR     MCLR/Vpp      RA0  o o
     RB6      GP1           RA1  o o
     RB7      GP0           RA2  o o
                            RA3  o o
                            RB0  o o
                            RB1  o o
                            RB2  o o RB7
                            RB3  o o RB6
                            RB4  o o RB5

  Finally, if you are running Windows 95, try restarting in the
MSDOS-Only mode.

  - Tom

At 02:52 PM 1/27/98 +0100, you wrote:
{Quote hidden}

1998\01\30@051815 by Leo van Loon

flavicon
face
Tom, thanks for the advise. I bought a 16F84, programmed a few 1's and 2's:
the result was the same as with the 12c508.
I got a brand new programmer from my distributer, still the same problem.
So, the problems are caused by faul communications with the parallel port of
the 286 computer. A known problem??

Leo van Loon

-----Oorspronkelijk bericht-----
Van: Tom Handley <.....thandleyKILLspamspam@spam@TELEPORT.COM>
Aan: PICLISTspamKILLspamMITVMA.MIT.EDU <.....PICLISTKILLspamspam.....MITVMA.MIT.EDU>
Datum: donderdag 29 januari 1998 13:04
Onderwerp: Re: Problems with Parallax programmer


{Quote hidden}

programmed'
>>result. Reading, verifying and erase check have every time another result,
>>often with 'NO PIC-PGM DETECTED' as result
>>
>>I use an AT-PC with standard parallel port for programming. I have the
>>impression that communication between PC and programmer is not correctly
>>timed.
>>Is there anyone with the same experience and the solution for this
problem?
>>
>>Leo van Loon
>
>

1998\01\30@083032 by Leo van Loon

flavicon
face
Thanks to the comments my problem is solved.
It was caused by malfunctioning of the parallel port of the old 286 PC.
I took a close look to the configuration of my Pentium PC,  added a data
switch, installed SPEP and the progammer worked perfect!

Leo van Loon


-----Oorspronkelijk bericht-----
Van: Tom Handley <EraseMEthandleyspam_OUTspamTakeThisOuTTELEPORT.COM>
Aan: PICLISTspamspam_OUTMITVMA.MIT.EDU <@spam@PICLISTKILLspamspamMITVMA.MIT.EDU>
Datum: donderdag 29 januari 1998 13:04
Onderwerp: Re: Problems with Parallax programmer


{Quote hidden}

programmed'
>>result. Reading, verifying and erase check have every time another result,
>>often with 'NO PIC-PGM DETECTED' as result
>>
>>I use an AT-PC with standard parallel port for programming. I have the
>>impression that communication between PC and programmer is not correctly
>>timed.
>>Is there anyone with the same experience and the solution for this
problem?
>>
>>Leo van Loon
>
>

1998\01\30@123920 by David W. Duley

picon face
In a message dated 98-01-30 05:18:48 EST, you write:

<<
Tom, thanks for the advise. I bought a 16F84, programmed a few 1's and 2's:
the result was the same as with the 12c508.
I got a brand new programmer from my distributer, still the same problem.
So, the problems are caused by faul communications with the parallel port of
the 286 computer. A known problem??

Leo van Loon
 >>
Leo and Tom,
I have had the same problem with my parralax programmer.  My problems started
when I upgraded my unit to version 4.xx of the firmware.  The only way I get
it to reliably function now is to use my ZIP drive as a buffer.  If I plug
directly into the parrallel port of my laptop I get all kinds of errors.  If I
plug my ZIP drive into the laptop and plug the programmer into the ZIP drive
it works fine.

Go figure

Dave Duley


'Problems with Parallax programmer'
1998\02\01@235546 by Tom Handley
picon face
  Dave, it sounds like the problem is the interface. I've designed a
variety of devices that connect to a PC parallel port and grounding was a
big problem. Next was noise on the signal lines. I normally use a 74HC
buffer with a R/C filters. As far as the Parallax programmer, the main
problem I've seen was related to timing and how the parallel port was
implented on the PC. In my case, I got errors when running under Windows 95.
I get 100% reliability when I reboot to the MSDOS mode. Other folks with
faster and slower machines have no problem. I'm using SIIG cards with
EPP/ECP parallel ports.

  Carmacon is providing an upgrade to the Parallax programmer that uses the
serial port. It costs around $30 if you want to build your own RS232 interface
or $50 if you buy one from them. It runs in Windows. The update includes a new
firmawre chip, software, and serial interface that plugs into the RJ11 jack on
the Parallax programmer.

  Andy Kunz and I have the upgrade and have been providing feedback to
Carmacon. While I'm certainly not in a position to speak for Carmacon, I think
that their product will be very robust within the next few weeks. They have
been very responsive to suggestions and bug reports. Also, their update
supports more recent PICs compared with SPEP v4.7. Parallax is still
supporting the PIC (not just the Stamp) and the Carmacon update will provide
good support for those of us who prefer the Intel-style syntax of the Parallax
and TDE assembler.

  - Tom

At 12:36 PM 1/30/98 EST, you wrote:
{Quote hidden}

More... (looser matching)
- Last day of these posts
- In 1998 , 1999 only
- Today
- New search...