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???
01/20/07 13:09
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#131160 - IAP migration
Responding to: ???'s previous message
Bob,

There is a 'C51 to 'V51 migration appnote on NXPs site, it might help.

The differences are mainly the I2C/SPI, the 12/6 swithcing (lack of), and IAP/ISP. Also watch out, the ISP entry is different hardware-wise, and in 'V51 might cause troubles if data may arrive on Rx while the chip comes out of reset - in this case a modification of bootloader might be needed.

IAP itself is described in the datasheet. It is easy, the only detail you need to take care of is, that the FLASH bank switching routine has to be above 2000h and interrupts should be disabled (or the bootloader shall be modified also for handling the interrupts).

Go through the datasheet and if you will have doubts, ask, I will help you.

JW

List of 10 messages in thread
TopicAuthorDate
P89V51RC IAP library            01/01/70 00:00      
   P89VC51RD2BN to P89V51RD2 is not very difficult..            01/01/70 00:00      
      C51, disco            01/01/70 00:00      
         IAP migration            01/01/70 00:00      
         Should not be difficult....            01/01/70 00:00      
            Ok, thanks for the help.            01/01/70 00:00      
               IAP and ISP P89V51            01/01/70 00:00      
   just a snippet...            01/01/70 00:00      
      Thanks to all,            01/01/70 00:00      
         P89V Migration            01/01/70 00:00      

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