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???
07/03/09 14:52
Modified:
  07/03/09 15:13

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#166713 - USB-DB25 converters are not reliable
Responding to: ???'s previous message
Atleast my experience says that USB-DB25 converters are not reliable usually... Can someone comment on the reliability of the USB-serial converters? I have no idea myself.

Gopal Amlekar said:
You can then use USB to serial converter for your laptop.

I think that new laptops do not have either DB25 or serial port. I have faced the same problem many a times with my IBM R51 laptop despite having a parallel port in it. I use ikalogic's DB25 programmer, which doesnt work reliably until you switch off the power supply of laptop! It's noise problem I think. I would recommend to buy an inexpensive USB programmer instead of spending on converters & still getting unreliable results.

see:
http://shop.extremeelectronics.co.in/product_i...pAodyU5QAg

List of 14 messages in thread
TopicAuthorDate
ISP-flash programmer            01/01/70 00:00      
   Re: ISP-flash programmer            01/01/70 00:00      
      USB-DB25 converters are not reliable            01/01/70 00:00      
         RE: USB-Serial / Parallel converters            01/01/70 00:00      
      Not parallel port converters?            01/01/70 00:00      
         USB To "Parallel" Adapters            01/01/70 00:00      
            PCI latency?            01/01/70 00:00      
               PCI Latency....Least of Problem...            01/01/70 00:00      
                  PCI latency can be a significant problem            01/01/70 00:00      
                     PCI Speed            01/01/70 00:00      
                        Bit-banging can be extremely slow            01/01/70 00:00      
                           Other Bit Banging            01/01/70 00:00      
                              Slave processor a need for modern PC            01/01/70 00:00      
   ISP Flash Programmer with USB            01/01/70 00:00      

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