How can I burn hex code to p89v51rd2 without a usb to rs232 serial cable?

AI Thread Summary
The discussion revolves around the challenge of burning hex code from a laptop to the NXP 89V51RD2 microcontroller without a USB to RS232 serial cable. The user is utilizing an Aspire 746 laptop running Windows 7, with a setup involving a programmer circuit and multiple DB9 connectors to connect to the laptop's USB port. Concerns are raised about the reliability of using multiple connectors, as previous experiences with USB to RS232 converters have shown inconsistent results. The main question is whether this complex setup will successfully allow the user to burn the hex code onto the microcontroller.
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hello ,
I want to burn hex code from Laptop to p89v51rd2. but I don't have usb to rs232 serial cable

laptop -aspire746
os- window 7
serial port
microcontroller nxp89v51rd2
compiler - keil
programer software - flesh magic
com port 1
baud rate 9600
interface - none ISP
max RS232IC

usb to rs232 serial cable is not available in my place so I used two cable to burn hex code I have driver cd
programmer circuit +Db9 male connector +db9female connector------cable-----db9 female+db9male--able --- usb port to laptop port

Q1 it will work or tell me way how to burn hex code ?
 

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