RS232-USB converter
RS232-USB converter
RS232-USB converter
RS232-USB converter
RS232-USB converter
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  #1  
Old 03-13-2009, 04:28 AM
rickson rickson is offline
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Default RS232-USB converter


HI,
I have a problem regarding rs232-usb converter... I'm using toshiba laptop. The problem i faced is i can receive data from my microcontroller to VB but i cant send data to microcontroller... However, when i use the same VB code and same converter, i try at my friend laptop (other brand), it works... May i konw is there any other setting i need to set for my laptop??

Thanks.
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Old 03-13-2009, 10:13 AM
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tpaksu tpaksu is offline
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did you install prolific usb to serial driver? or have you checked if the driver was correctly installed in the system -> device manager -> com port is visible?
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Old 03-13-2009, 10:44 AM
rickson rickson is offline
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Hi,
Yes i install the prolific driver already. And the device manager there got show that com port... I can received data from pic but i cant send to pic from pc... I also try to boot the program into my pic but it show error :"work time-out". Really no idea about that. Please help me because i really need it to do my final year project. Thanks..
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Old 04-25-2009, 07:04 PM
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tpaksu tpaksu is offline
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If you've designed the programmer interface for the pic, i think it uses the supplying voltage from the serial port. And I think that's missing or not stable when you use a converter. Please check that first. And if it's happening, try to seperate the supplying circuit from the programming circuit and try that again.
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