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???
11/30/04 23:12
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#82254 - ISP Serial Speed
Responding to: ???'s previous message
Ian:
You said:
Turn on power
Press the reset and PSEN buttons.
Release the PSEN button
Release the PSEN button

This should read

Turn on power
Press the reset and PSEN buttons.
Release the RESET button
Release the PSEN button


Thanks for the correction. It is so easy to think you have checked your own posts.


Also I am surprised you managed to get UART auto-baud at 56 kbaud. I use a 11.059MHz xtal and have had problems in getting reliable ISP communications above 9600 baud.
What is your secret?


The Kanda board I am using has a 20MHz crystal so that probably helps but even so you should be able to reach at least 19K2. The Philips 89C52RD2 chip I am using has a 6 clock cycle too so if you are using a 12 cycle one that may explain why speeds over 9600 are difficult.

Ian

List of 13 messages in thread
TopicAuthorDate
p89c51 isp programming            01/01/70 00:00      
   RE: p89c51 isp programming            01/01/70 00:00      
      RE: p89c51 isp programming            01/01/70 00:00      
         RE: p89c51 isp programming            01/01/70 00:00      
         Brown out            01/01/70 00:00      
   RE: p89c51 isp programming            01/01/70 00:00      
   Flashmagic Forum            01/01/70 00:00      
   RE: p89c51 isp programming            01/01/70 00:00      
   89c51 ISP            01/01/70 00:00      
      to Ian            01/01/70 00:00      
         89C51RX2 ISP            01/01/70 00:00      
      Typo Corrextion            01/01/70 00:00      
         ISP Serial Speed            01/01/70 00:00      

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