Iam developing an ISP programmer for 89s51 and 89s52.In this project i have to get the signature byte of 89s52 and 89s51 using spi commands.But,Iam facing problem in the way in which i have to use the commands. 0010 1000 xxxA12 A11A10A9A8 A7xxx xxx0 Signature Byte for 89s52 0010 1000 xxxx A11A10A9A8 A7xxx xxx0 Signature Byte for 89s51 Here what does these A12A11A10A9A8A7 signifies in 89s52 if it is address what is that address in datasheet it is said that signature bytes can be accessed at locations 000h , 100h , 200h. can anybody give me a clear picture about how to use SPI commands for reading signature byte and similar for 89s51
Iam developing an ISP programmer Why??? there are literally thousands of them floating around Erik
Iam an amature hobbyist i want to make a programmer for my use.I have used Masuba programmer.Just for the hobby sake i want to make it.So,I would be thankfull if anybody can help me.