Hello,
i am having trouble with the P89C664. When i use my desktop PC it works fine, i am able to program the device. When i try to use it on my laptop with exactly the same setting it just does not work. It says something like that: "Unable to connect at the specified baud rate. Try reducing baud rate. Reset the hardware into ISP mode again". It cannot find the device. Both computers use Windows XP. I also use a USB->R232 converter on both computers. Where could the problem be? Btw, reducing baud rate does not work, i have also tried changing COM port numbers.
ty
i am having trouble with the P89C664. When i use my desktop PC it works fine, i am able to program the device. When i try to use it on my laptop with exactly the same setting it just does not work. It says something like that: "Unable to connect at the specified baud rate. Try reducing baud rate. Reset the hardware into ISP mode again". It cannot find the device. Both computers use Windows XP. I also use a USB->R232 converter on both computers. Where could the problem be? Btw, reducing baud rate does not work, i have also tried changing COM port numbers.
ty