[unsolved] TiLP2 connecting error

[Idanwin]

Hello,
I have a problem trying to connect my TI-84+ to my computer.
I downloaded and succesfully installed TiLP2 on a windows (thx to some people on this forum) but I don't really know how to work with it.
I read the manual but think that maybe that won't help me solve the problem.

The program starts up as it should. (it looks as if it does)
I open the popup window and select change device.
I don't really know what kind of cable I have but since it is black, I choose BlackLink.
I don't really know which port to choose so I tried all of them, always a problem.
I have (as said before) a TI-84+ so I select that.
Timeout: 20
Delay: 10
USB scan at startup: V

And click OK
I get 2 errors:

Msg: unable to open serial port.
Cause: check that device is not used/locked by another application.
System: (1660976624) The handle is invalid.

and:

Msg: attempting to use a cable which has not been open before.
Cause: Internal error.

What should I do?
Idanwin

[linkmaster03]

I assume you are using the USB cable. This cable is called "DirectLink", not "BlackLink".

[Mapar007]

Yup, correct. BlackLink is a serial cable. TiLP should recognize it, however. (I think there's a button to make the program figure it out for itself)

[jaygaud]

I am posting my problem in this thread since I am getting the same error, but for a different reason.

I have a TI83+ that I am trying to connect to my PC using the SilverLink USB cable. I have installed TiLP2 and all required supporting software. I am able to open TiLP and connect to the calculator. I am able to press the Dirlist button and get info back from the calculator. My problem is when I try to backup the data from my calculator I get a timeout error, and when I try to send a new app to the calculator, I get this message:

Msg: error occured while reading to the device.
System: (1660976624) The handle is invalid.

Is there something obvious that I'm missing? I can't seem to figure out why this is happening. When I try to send data to the calculator, I put it in receive mode since if I don't, I get this error:

NACK received.
Cause: the command has been refused.

Please help!

[FloppusMaximus]

I have no idea what the error message means, but no, you should not put the calculator in "receive" mode when transferring files to/from a PC. "Receive mode" is required for calc-to-calc transfers, but doesn't work for PC-to-calc transfers. (Yes, this is stupid.)

[jsj795]

You know, i have ti84+SE and used to have tilp2... I was able to back up the files, but then could not receive the backup files, saying that it has an invalid name... So i changed to TI-Connect after many helps from various sources... Anyway, @ jayguad, for the application timeout, it might be that there isn't enough Archived memory in the calculator... for TiLP, they don't go like "insufficient memory" they go like "The handle is invalid"

Sooooooo... if it's possible, change it to TI-Connect... TiLP also didn't support recieving pic vars too.

Hope it helped.

[Mapar007]

DON'T put it in recieve mode when using silent link. (what TiLP does)

"handle invalid" has something to do with the ticalcs library, I think. (there is a struct calchandle or something...)

About the NACK, I don't know what it means. I think it's a no-acknowledge packet or something.

[simplethinker]

I'm not sure if this is your problem, but for me, I can't send/receive more than 32 files at a time (this counts the number of files in a group, so if a group has 5 files, it counts as 5 files). Try sending at most 32 files at a time and see if that helps.