8051 developement board

[ISPN]

Hi, I am new to the microcontroller programming and i recently i bought a mini developemnt bord from Ebay. This is the similar product what i bought.

**broken link removed**

I am having problem that which software should i use to download programme? i checked with 89v51rd2 and flash magic software. Since i do not have serial port i used usb to serial bridge. But always i got baud rate error.

So i want to know is there any specific software to link with this programmer? and is it posible to program at89c2051 microcontroller using this development board.

If you possible please give me your valuable suggestions.

Thanking you.

 

[Jinzpaul4u]

Hello ISPN,

Baud rate error may be because of your wrong hardware selection.
# Are you using 9600bps?
#Can you please manually check your USB-UART bridge ? short your TX-RX pin and try with hyper terminal?

Please update me.. if you can.

Best regards,
PAUL

 

[ISPN]

Hi paul,

Thank you so much. Since i use windows 7 i didnt have hyperterminal. so i downloaded exe and dll file and established hyperterminal connection. I connected 2 and 3 pins together and tried to send a text file. But i got error called remote error. I did not have hyperterminal earlier. so i used following link to basic setup.

https://www.dnatechindia.com/Tutori...g-HYPERTERMINAL-for-Serial-Communication.html

Thanking you

 

[Jinzpaul4u]

Hi paul,

Thank you so much. Since i use windows 7 i didnt have hyperterminal. so i downloaded exe and dll file and established hyperterminal connection. I connected 2 and 3 pins together and tried to send a text file. But i got error called remote error. I did not have hyperterminal earlier. so i used following link to basic setup.

https://www.dnatechindia.com/Tutori...g-HYPERTERMINAL-for-Serial-Communication.html

Thanking you

Hi again,

Try terminal.exe.. and get back me.

All the best.. :idea:

 

[ISPN]

Hi,

Thank you. I tried with terminal. I got the echo message. I think bridge is ok correct?
Thank a lot. Then what next?

Regards

 

[Jinzpaul4u]

Hi,

Thank you. I tried with terminal. I got the echo message. I think bridge is ok correct?
Thank a lot. Then what next?

Regards

Hi,

#So it means your hardware does not having any problem. what baud rate are you using to communicate with board? is it 9600bps?

# Please verify your flash magic SW supports windows 7 and are using latest version of it?

#You need to have a COM port listed in the Device Manager first. Once you have COM port (perhaps using a USB to RS232 cable) you then select the matching COM port in Flash Magic. Start off with 19200 baud and increase if it works.

#'Are you using DTR to control RST' ??

#set baud rate from 9600 to 7200 and try?.

#i found that the new flash magic software has some bugs (i guess, but i'm not sure).. so use the older version flash magic i.e------>> Version 2.40 (DLL Version 1.90)... Use this, first time it will ask for reset isp, just press your 8051 reset button and then continue.

Please do above suggestions and update me if you can..

All the best.
Paul

 

[tushki7]

Greetings,
First find out which com port your usb to serial wire is using, go to the following link you will find step by step info on how to program p89v51.
Important step: In flash magic, Goto options -> advance options -> in hardware config tab uncheck use dtr to control rst


Follow this link : https://www.8051projects.info/threads/need-help-using-8051-with-rs232.2283/

Good Luck )

 

[ISPN]

Hi,

Thank you so much for your helps. I followed the link you given. Unfortunately if i pressed reset switch in the board, nothing happened. I have doubt that MC is not working properly.

Best Regards,

 

[tushki7]

Hi,

Thank you so much for your helps. I followed the link you given. Unfortunately if i pressed reset switch in the board, nothing happened. I have doubt that MC is not working properly.

Best Regards,

Check all your microcontroller connections
1. check 5v and ground connections
2. check your crystal oscillator and ground it properly
3. check whether 31st pin of your microcontroller is connected to vcc 5V or not
4. Select right com port in flash magic
5. DB9 connector 5th pin must be grounded with your programmer board ground.
6. check your max232, if possible try other spare max232 if u have any.
7. check your usb to serial cable using any terminal by connecting it 2nd and 3rd pin and pinging it(echo method).
8. check that your microcontroller reset circuitry is working properly or not.

Good luck