Guest shahomy Posted September 23, 2008 Posted September 23, 2008 My serial port, com1,(DB9) doesn`t seem to work anymore. Computer is a Dell laptop. I use the serial port to communicate with a MicroChip programmer and also hyperterminal. I am an electronics hobbyist and use hyperterminal to setup a few things in an embedded web server in my home. My programmer just gives message "can`t connect to com1" Hyperterminal gives message "Another program is using the selected telphony device. Try again after the other program completes."....How to find what this "other"device is? Here`s what happened to make it stop working. I installed a device(home automation wireless device) called an "X10 FIRECRACKER" It`s just a 1 inch square device with db9 connectors on each end. It`s supposed to be "transparent" to other devices. I installed the drivers but never really tried to use it. I removed the hardware one day to plug my programmer in and got the message described above. I have uninstalled the X10 drivers, but still nothing works. I tried uninstalling the com1 port under device manager. After uninstalling i get message saying i must restart computer. So i do, and look under device manager and com1 still is installed ! At this point i don`t know what is wrong...hardware is actually broken or driver is corrupt? Not even sure if i`m in right forum ! How to determine if hardware is "broken" ? Thank you in advance for anyone who might have any ideas for me. Mike
Guest njem Posted September 23, 2008 Posted September 23, 2008 Re: com1 not working Can you do a system restore back to before the Firecracker driver was installed? On Sep 23, 6:36 am, shahomy <shah...@discussions.microsoft.com> wrote: > My serial port, com1,(DB9) doesn`t seem to work anymore. Computer is a Dell > laptop. I use the serial port to communicate with a MicroChip programmer and > also hyperterminal. I am an electronics hobbyist and use hyperterminal to > setup a few things in an embedded web server in my home. My programmer just > gives message "can`t connect to com1" > Hyperterminal gives message "Another program is using the selected telphony > device. Try again after the other program completes."....How to find what > this "other"device is? > Here`s what happened to make it stop working. > I installed a device(home automation wireless device) called an "X10 > FIRECRACKER" > It`s just a 1 inch square device with db9 connectors on each end. It`s > supposed to be "transparent" to other devices. I installed the drivers but > never really tried to use it. I removed the hardware one day to plug my > programmer in and got the message described above. I have uninstalled the X10 > drivers, but still nothing works. > I tried uninstalling the com1 port under device manager. After uninstalling > i get message saying i must restart computer. So i do, and look under device > manager and com1 still is installed ! > At this point i don`t know what is wrong...hardware is actually broken or > driver is corrupt? Not even sure if i`m in right forum ! > How to determine if hardware is "broken" ? > Thank you in advance for anyone who might have any ideas for me. > Mike
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