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Hi,
I am using windows 7 (64-bit).
When I try download a program into my msp430, I am getting de following error message
Could not find MSP-FET430UIF on specified COM port
In de options (IAR embedded workbench) I choose Debugger -> FET Debugger -> Connection texas instrument USB-if -> automatic
If I try to select a port I see HID0021:COM4 (already in use). I can't select port because it is in use.
If a disconnect the device, the message HID0021:COM4 disappears.
It seems that the port can't be selected because it is reserved for it self.
How can I solve this problem ?
What can I for further investigation
Perhaps some software is hijacking the port as soon as it appears. Smartphone-syncing software or mouse drivers have been reported to cause this problem.
Thank you for your answer.
Unfortunately there is no smartphone software on this computer. There is 1 usb-mouse and 1 usb-keyboard for the neccessary input.
What worries me, is the fact that there several nodes added to when I connect this msp430.
No device
With MSP430
As you can see in the node HID-device there are an extra HID-device and a extra USB device
In the port-node is the MSP430 device added on COM4
In the node USB-serial controllers a "samengesteld" (mixed) usb device is added.
Which nodes are added for support of the msp430 ?
Which nodes are added but do not support the msp430 ?
AFAIK, this is sort of a cascaded device, the HID provides the COM port etc.tim johnson1 said:Which nodes are added for support of the msp430 ?
Which nodes are added but do not support the msp430 ?
Someone does use it, someone who doesn't have to.
Any permanently running software or service that connects to serial devices might be the cause. Mosue driver and syncing software were just two examples that have been identified. But it could as well be a monitoring software for an UPS or whatever.
Thank you for your answer. It seems to make sense.
Since I am using windows 7 64 bit, I can't use portmon anymore to search for the process that is using COM4.
Do you know of a alternative port-monitor ?
It was indeed the accuweather service that was keeping the port busy.
It looks like this service claims the device because it is thinking that it is a weather station.
We can now download a program and single step through a program.
Unfornately when running a program and then do a halt. Gives a new error.
"could not reminate the EEM polling thread"
It is strange because you can see in process explorer (sysinternals) you can see that more process a busy with the \device\KsecDD.
How to solve this new error ?
Should the \devices\KsecDD only be used by the iar process of can it be shared ?
What would a process like explorer.exe do with the msp430 ?
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