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I see that you have forgot to clear the RI flag of the microcontroller. if you use interupt based serial port you have to clear the RI flag every time you receive a byte.
hope this solution solve your problem
power line communication 1khz
Hi all;
please if any one have information about the high frequency model of powerline distribution transformers or any paper to refer to.
thankx in advace
this depends on the keyboard manufacturer who design the keyboard controller inside the keyboard? I see that your design work because this controller not drawin current more than 7805 which can give more than 1A which is too much
hope to help
hex to bcd assembly
you can use simble method for converting 8 bit binary number into decimal equivelt stored in 3 memory locations
code for 8051 family( let r0 contain the binary number and r1,r2,r3 contain decimal equavelent)
BIN_DEC: MOV A,R0
MOV B,#100...
usb 8051 programmer
"aec_isp" work but use "AT80s51" which support serial incircuit programing
Added after 1 minutes:
"aec_isp" work well but you have to use "AT89s51" note " S" in the middle which mean it supports in circuit serial programing
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