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Andy Neil
05/26/04 13:40
Read: 2927 times

#71264 - RE: 89C51 ISP
Responding to: Erik Malund's previous message
erik malund said:
Your board will have a RS232 link to the PC and with an ISP chip you program the chip on your board as is.

The 89C51 can be programmed in-circuit - as described in the application notes I mentioned earlier.

However, it is far more complicated than modern ISP schemes that require just a serial port; eg, the 89LPC932.

Programming an 89C51 requires 8 data lines, 12 address lines, and 8 other control lines, and 12V for some (most?) variants.
One the Atmel Application Notes uses another 8051 to do the programming! So you could build that, and call it a "Programmer" if you want...

List of 35 messages in thread
Programmer for Atmel-89c51      Ram Kumar      05/24/04 04:45      
   RE: Programmer for Atmel-89c51      Prahlad J. Purohit      05/24/04 05:24      
      RE: Programmer for Atmel-89c51      Christian Kleiber      05/27/04 20:39      
   RE: Programmer for Atmel-89c51      Raghunathan R      05/24/04 05:40      
      RE: Programmer for Atmel-89c51      Jez Smith      05/24/04 07:13      
         RE: AEC Electronics?      Andy Neil      05/24/04 07:47      
         RE: Programmer for Atmel-89c51      Abdul Mujid      05/24/04 20:05      
            RE: Programmer for Atmel-89c51      Raghunathan R      05/24/04 20:38      
               RE: Programmer for Atmel-89c51      Abdul Mujid      05/24/04 20:55      
                  RE: Programmer for Atmel-89c51      Abdul Mujid      05/24/04 21:10      
            RE: Programmer for Atmel-89c51      Prahlad J. Purohit      05/24/04 22:59      
            RE: Programmer for Atmel-89c51      Erik Malund      05/25/04 09:22      
               RE: Programmer for Atmel-89c51      Abdul Mujid      05/25/04 20:22      
                  RE: Programmer for Atmel-89c51      Erik Malund      05/26/04 07:12      
                     RE: Programmer for Atmel-89c51      Abdul Mujid      05/26/04 08:22      
                        RE: Programmer for Atmel-89c51      Erik Malund      05/26/04 08:32      
                           RE: 89C51 ISP      Andy Neil      05/26/04 13:40      
                              RE: 89C51 ISP      Erik Malund      05/26/04 13:49      
                                 RE: what reason can there be...      Andy Neil      05/26/04 14:38      
                                    RE: what reason can there be...      IJAZ AHMED      05/26/04 14:57      
                                       RE: what reason can there be...      Charles Bannister      05/26/04 23:30      
                                       RE: what reason can there be...      Erik Malund      05/27/04 06:51      
                                          RE: what reason can there be...      IJAZ AHMED      05/27/04 13:48      
                              RE: 89C51 ISP      Oleg Sergeev      05/27/04 01:40      
                                 NOT RECOMMENDED FOR NEW DESIGNS!      Andy Neil      05/27/04 19:08      
                        RE: Programmer for Atmel-89c51      Erik Malund      05/26/04 08:32      
                  RE: Programming voltage      Andy Neil      05/26/04 13:06      
                     RE: Programming voltage      Abdul Mujid      05/26/04 19:52      
                        RE: Programming voltage      Christian Kleiber      05/27/04 20:18      
   RE: Programmer for Atmel-89c51      Jez Smith      05/24/04 07:14      
   Go to the Atmel website...      Andy Neil      05/24/04 07:31      
   RE: Programmer for Atmel-89c51      Mehmet Karakaya      05/24/04 10:42      
      RE: Programmer for Atmel-89c51      Jez Smith      05/24/04 10:57      
         RE: AEC Electronics - working now      Andy Neil      05/24/04 16:27      
            RE: AEC Electronics - working now      Jez Smith      05/25/04 00:08      

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