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Author Topic: TI-Nterface (my version of labpro)  (Read 65982 times)

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Offline MillionCalcs

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Re: TI-Nterface (my version of labpro)
« Reply #60 on: February 19, 2012, 12:23:26 pm »
How much would this cost if it was finished ?! O.o
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #61 on: February 19, 2012, 12:51:24 pm »
Quote from: MillionCalcs on February 19, 2012, 12:23:26 pm
How much would this cost if it was finished ?! O.o
The cost of the arduino+some components and a casing is around 30-50 dollar. Of course it won't look as good as the design since I don't have a 3d printer :)

I need some help, guys! I can receive bytes with it now! The only problem is that AXE doesn't seem to use the OS linking protocol.
00111110  124
11101001  151
11000000  3
10111111  253
I tried to send an OS variable. Ofcourse this is not possible without knowing how the calcs communicate exactely, so HOW DO THEY DO IT?
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Offline Camdenmil

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Re: TI-Nterface (my version of labpro)
« Reply #62 on: February 19, 2012, 01:34:36 pm »
The wikiti page has some stuff on how the os sends bytes. If you're using axe, take a look at axe's commands.inc (p_GetByte and p_SendByte). From what I see, tip on the link port is used for confirmation and ring is used for sending bits.
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Offline DJ Omnimaga

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Re: TI-Nterface (my version of labpro)
« Reply #63 on: February 19, 2012, 02:39:20 pm »
Do you have to finish the entire design itself (as in physically, not draft/picture) before the deadline too or if you just need the hardware done?
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #64 on: February 19, 2012, 03:11:30 pm »
Quote from: DJ_O on February 19, 2012, 02:39:20 pm
Do you have to finish the entire design itself (as in physically, not draft/picture) before the deadline too or if you just need the hardware done?
Just the hardware is fine. I only have to write the software for the communication (which is a pain). I might be able to let BASIC users interface their calcs with the world using BASIC send/get commands. I already have a casing and everything, but the software issue is just a hard nut to crack.
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Offline Camdenmil

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Re: TI-Nterface (my version of labpro)
« Reply #65 on: February 19, 2012, 07:02:35 pm »
Are you using the usb port or the link port? Axe's link commands only use the link port (the usb controller is a semi-undocumented monster)
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #66 on: February 20, 2012, 03:34:14 am »
Quote from: Camdenmil on February 19, 2012, 07:02:35 pm
Are you using the usb port or the link port? Axe's link commands only use the link port (the usb controller is a semi-undocumented monster)
I use the IO link port. I think I'm gonna use the OS way of communication since there is better documentation of it and perhaps could be used with basic programs.
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #67 on: February 20, 2012, 12:50:18 pm »
Hardware is almost done! Next I gotta wire everything up and write some code....
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Offline DJ Omnimaga

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Re: TI-Nterface (my version of labpro)
« Reply #68 on: February 20, 2012, 02:48:35 pm »
Nice so far, I'm glad it's getting done :D
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Offline Camdenmil

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Re: TI-Nterface (my version of labpro)
« Reply #69 on: February 20, 2012, 10:28:03 pm »
Quote from: Keoni29 on February 20, 2012, 03:34:14 am
Quote from: Camdenmil on February 19, 2012, 07:02:35 pm
Are you using the usb port or the link port? Axe's link commands only use the link port (the usb controller is a semi-undocumented monster)
I use the IO link port. I think I'm gonna use the OS way of communication since there is better documentation of it and perhaps could be used with basic programs.
You should have a way to use the axe link commands, I mean it'd be cool to interface with external hardware with axe. Axe's protocol is very simple, tip is held low to initialize a transfer and ring is used for data transfer. (All times are assuming a 6mhz cpu) You have 10 µs to acknowledge the transfer and there is a delay of 12-18 µs for each bit. The linking routine is provided in commands.inc (which comes with axe) if you want to see exactly what it does. I tested this with a microcontroller I was able to send and receive bytes with axe.

Are you going to share the hardware design/programs? I've been thinking about making some hardware interface for the calc (with spi and i2c ports for sd cards ect.) and it'd be nice if there was a common platform to work with.
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #70 on: February 21, 2012, 05:47:50 am »
Quote from: Camdenmil on February 20, 2012, 10:28:03 pm
Quote from: Keoni29 on February 20, 2012, 03:34:14 am
Quote from: Camdenmil on February 19, 2012, 07:02:35 pm
Are you using the usb port or the link port? Axe's link commands only use the link port (the usb controller is a semi-undocumented monster)
I use the IO link port. I think I'm gonna use the OS way of communication since there is better documentation of it and perhaps could be used with basic programs.
You should have a way to use the axe link commands, I mean it'd be cool to interface with external hardware with axe. Axe's protocol is very simple, tip is held low to initialize a transfer and ring is used for data transfer. (All times are assuming a 6mhz cpu) You have 10 µs to acknowledge the transfer and there is a delay of 12-18 µs for each bit. The linking routine is provided in commands.inc (which comes with axe) if you want to see exactly what it does. I tested this with a microcontroller I was able to send and receive bytes with axe.

Are you going to share the hardware design/programs? I've been thinking about making some hardware interface for the calc (with spi and i2c ports for sd cards ect.) and it'd be nice if there was a common platform to work with.
That means that the timing is crucial. Can you describe using some sort of pseudocode how the TI handles byte transfer (Axe style)?
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #71 on: February 22, 2012, 03:09:58 pm »
The presentation went smoothly :D Of course I will carry on with the Nterface and I will probably have the Axe linkprotocol for Nterface ready this weekend.
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Offline Spyro543

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Re: TI-Nterface (my version of labpro)
« Reply #72 on: February 22, 2012, 03:34:28 pm »
Did you have a powerpoint or something? If so, could we see it?
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Offline DJ Omnimaga

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Re: TI-Nterface (my version of labpro)
« Reply #73 on: February 22, 2012, 04:10:53 pm »
Congrats Keoni29. Glad it went well. Keep up the good work on this. :)
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Offline Keoni29

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Re: TI-Nterface (my version of labpro)
« Reply #74 on: February 22, 2012, 04:24:44 pm »
Quote from: Spyro543 on February 22, 2012, 03:34:28 pm
Did you have a powerpoint or something? If so, could we see it?
Yes, but it's written in Dutch which is not neccecarely a problem to you, but others might prefer a translated version.
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