send data or char 4m hyperterminal to lcd using 89c51

[jayanth.devarayanadurga]

I see in your code that in displayValue() function LCD data port is referred as DATA and you are assigning value of value to DATA, So, you should use #define DATA P2

 

[ronkpatell]

I see in your code that in displayValue() function LCD data port is referred as DATA and you are assigning value of value to DATA, So, you should use #define DATA P2

can u edit that changes for my code?
and u see my crtk that is correct or need some modification?

 

[jayanth.devarayanadurga]

Zip and post your Proteus file. I will see if it works.

 

[ronkpatell]

Zip and post your Proteus file. I will see if it works.

but i don't have that Proteus file.just have circuit diagram in .pdf file.that i have already send it.

 

[jayanth.devarayanadurga]

You code is working fine. See attached file and image.

 

[ronkpatell]

You code is working fine. See attached file and image.

thank you very much jay.
i got my name on lcd but what i m writing in hyperterminal is not going to be displayed on lcd.

 

[jayanth.devarayanadurga]

Are you simulating in real hardware? In the code you have set baudrate 9600 bps and you have to use the same baudrate in hyperterminal. Is you MAX232 Ok? Are you getting garbage data on LCD? Try with the v2 file I have posted in my last post. Can you post your MAX232 circuit?

 

[ronkpatell]

Are you simulating in real hardware? In the code you have set baudrate 9600 bps and you have to use the same baudrate in hyperterminal. Is you MAX232 Ok? Are you getting garbage data on LCD? Try with the v2 file I have posted in my last post. Can you post your MAX232 circuit?

yes jay .i was set baudrate in hyperterminal 9600/databit 8bit/parity none/flow control none .
yes i have max 232 .
i didn't get any data on lcd only getting my name ronakpatell .
and i have some ttl/232 board that also i m using.and
another that nsk board have circuit .

- - - Updated - - -

Are you simulating in real hardware? In the code you have set baudrate 9600 bps and you have to use the same baudrate in hyperterminal. Is you MAX232 Ok? Are you getting garbage data on LCD? Try with the v2 file I have posted in my last post. Can you post your MAX232 circuit?

still not working i can't able to show hypereterminal data on lcd.

 

[jayanth.devarayanadurga]

Your MAX232 connection is wrong and maybe it is already damaged. See image.

 

[ronkpatell]

Your MAX232 connection is wrong and maybe it is already damaged. See image.

here can i use 1uf capacitor instand of 10uf?

 

[jayanth.devarayanadurga]

Yes. You can use.

 

[ronkpatell]

Your MAX232 connection is wrong and maybe it is already damaged. See image.

my rs232 circuit is right that is working with rs232 Bluetooth module.i.e i can send and receive text from that circuit.

 

[jayanth.devarayanadurga]

Post your MAX232 circuit. Does your RS232 connector has three wires? Tx, Rx, and GND?

 

[ronkpatell]

Post your MAX232 circuit. Does your RS232 connector has three wires? Tx, Rx, and GND?

that is on only rx/tx/gnd connection and .
and this working with other rs232 device.

 

[jayanth.devarayanadurga]

Try to send inverted data from hyperterminal.

 

[ronkpatell]

Try to send inverted data from hyperterminal.

i cant uderstand how to send inverted data from hyperterminal?

 

[jayanth.devarayanadurga]

Post the screenshot of hyperterminal. I don't have hyperterminal. There should be a invert check box. Are you sending ASCII data to MCU?

 

[ronkpatell]

Post the screenshot of hyperterminal. I don't have hyperterminal. There should be a invert check box. Are you sending ASCII data to MCU?

yes i just opne the hyperterminal and then select the port and set all baudrates,parity,bit,flow .
after that go in properties >ASCII Setup>Echo typed char. locally

 

[jayanth.devarayanadurga]

Echo? There is no UART Tx code in your code. How can your MCU echo data to PC when it doesn't have the Tx code.

 

[FvM]

There should be a invert check box.

There isn't an invert option with Hyperterminal or other standard terminal programs, e.g. Putty. What should be it's meaning?