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Microcontroller › 8051 › How to interface computer’s Serial Port (RS232) with 8051 microcontroller (AT89C51) Error.,, Help !!
Hi Amrith,
Thanks again help!
I use a Keil C emulator to run the C prohram mentioned in about paper on 8051 board which is connected to PC through a device UC232A ( RS232 to UAB cable). when I type the Keyboard of PC, there is to see the char display on Hyperterminal.
I change the C program which is dowdload from http://www.keil.com/forum/933 and run the program. I got the result as expectation.
Also I do not understand that some sentance such as P1=value and P2=P1-32 in C code of your paper.
May I use email for sent more information to you.
my email address: [email protected].
Hi lui,
My mail is [email protected]
i am facing the same problem as you have discribe…if your’s is solved then please give me the solution…
thanks in advance
p1= value ” p1 stores the value what u type in the keyboard in the form of ASCII value ” p2=p1-32 ” p2 stores the value what u see in the keyboard i.e “ASCII value of the pressed key -32″ ….”
Hello, I am using a 8051 Microcontroller development board in which has a 40 Pin P89V51RD2 Microcontroller in it , 8 LEDs connected to its Port 0
when i tried to dumping program using flash magic with creating hex file its ask for “Press Reset button for ISP mode” at that time my development bord is not Reseted/Responce.
And some time ask failed to read the device signature Unable to communicate Accessing device using wrong protocol……… Do you want to continue?
ple give me solution for this issiue.
And How to check my Development board is properly conneted with computer system?