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Graham

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Posts: 6
Reply with quote  #1 
I am using USB to serial cable with MS XP SP2 It works with hyperterminal communicating to a test device (PIC 16F84 serial input and LCD )
When i connect the programmer (other serial devices are disconnected)I get  a message "BOARD NOT RESPONDING about to apply reset) On RESET the power LED goes out then turns on again.
Chip being programmed is 16F819
Power supply in is 19 Vdc
VDD is 12.3V
Chip 5V supply is 4.98 V
Question: what Baud rate etc does the serial port need to be set to or is auto detect?
Do I need a crossover from the USB adaptor to the programmer D9?

Thanks

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Astro
Frank

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Posts: 1,899
Reply with quote  #2 
The Windows application sets the serial port baud rate - no need to do anything there.

Cannot say whether you need a crossover cable - that depends on how the output of the USB-to-serial cable is configured. I would guess that these devices 'emulate' the pinout of a PC COM serial port so you it should be a direct connect ie. no crossover.

Why are you using a USB-serial cable? K149 has both a serial and USB port - an onboard switch selects between them. Why not simply use the USB port?
Graham

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Posts: 6
Reply with quote  #3 
Thanks for the quick response
The Board was purchased from Ozitronics and is labled K149F the software when running DIY K149-BC v150807
The bottom bar COM 4 K149-BC board connected?
There is some information on the Ozitronics web site that the USB version was unrelible and that the unit I have is an upgrade?
The K149F unit I have has a date on it 03/2006?  so maybe its old stock?
and I need older software?This unit does not have a USB connection or switch.
If this is an obsolete unit please advise which programmer I should use I need to load bootloader software into PIC16F877 /A and program 16F819 chips
Note the pwr LEd turns OFF when the RESET is selected.

Thanks
Graham

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Frank

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Posts: 1,899
Reply with quote  #4 
Graham,

This is Frank from Ozitronics. I handle tech support for DIY Electronics on this forum. You purchased the programmer from me.

I was wrong when I assumed that the programmer would work with a USB-to-serial adaptor cable. I have tried it here with such a cable and it has the same problems that you are experiencing.

If the adaptor cable was made using the same FTDI chip as that used in these PIC programmers then all would be well. Obviously your cable and mine are not and hence it doesn't work.

Please email me direct and we can arrange a refund. Sorry about this hassle.


Graham

Registered:
Posts: 6
Reply with quote  #5 
Thanks Frank
Do you have a programmer that will do what I want i.e.
Run from win 7 64 bit preferrably USB
Porgram PIC 16F877A and 16F819 chips ie needs a 40 pin socket.
I was using Picall but would have to revert to my old PC for that.

Or can you point me in the right direction.

Regards
Graham

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Astro
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