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tantay
Newbie

Joined: 30/10/2016
Location: Vietnam
Posts: 15

Posted: 03:53am 02 Nov 2016

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Hello everybody!
I am working with ILI9341 LCD and touch control FT6206(I2C).I was display LCD but touch control not work
I want to create BASIC function for control touch same(I search in forum)
CFUNCTION touch(INT, INT, float, float, INT,.....)
'writeCommand
000005B2
3c02bf88 24030004 ac436134 24030001 ac436134 3c02bf80 ac445820 3c03bf80
8c625810 30420080 1040fffd 3c02bf88 24030004 ac436138 3c02bf80 8c425820
03e00008 00000000

'writeData
.......
END CFUNCTION

I read in manual this is Embedded C Routines but i don't see instructions.

Help me

Sorry because my English is not good.

Thanks all

disco4now

Guru

Joined: 18/12/2014
Location: Australia
Posts: 1000

Posted: 12:51am 03 Nov 2016

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tantay,

MMBASIC can do I2C. See the manual Appendix B for how it works. You won't need a CFUNCTION to talk I2C.

Regards
Gerry

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paceman
Guru

Joined: 07/10/2011
Location: Australia
Posts: 1329

Posted: 02:50am 03 Nov 2016

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The commands built-in to MMBasic for the ILI9341 display and resistive touch screen use the SPI protocol XPT2046 touch controller, not the I2C FT6206. The XPT2046 controller chips are mostly supplied with this screen. If it is possible, the job will be much simpler if the XPT2046 touch controller is used.

Greg

tantay
Newbie

Joined: 30/10/2016
Location: Vietnam
Posts: 15

Posted: 10:49pm 03 Nov 2016

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Hi disco4now,paceman and everybody
Because the ft6206 don't connect to I2C bus of microcontroller. I think i must write I2C software to talk ft6206 by C language and then convert to MMBASIC.
You can help me Embedded C Routines in MMEdit?
Same thread
http://www.thebackshed.com/forum/forum_posts.asp?TID=8406&KW=I2c
Thanks very much

palcal

Guru

Joined: 12/10/2011
Location: Australia
Posts: 1982

Posted: 11:02pm 03 Nov 2016

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Hi Tantay,
I don't know if we understand what you are trying to do. If you just want to use the ILI9341 display with the Micromite and use the touch function built into the display you don't need any other hardware. Wire the display as per the Manual and use the pins you have used for T_CS and T_IRQ in the Option Touch command.
Then use the GUI Calibrate command to calibrate the display and it should all work.
Paul.

"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10204

Posted: 11:21pm 03 Nov 2016

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Tantay

If I understand you, the issue is that the pins on the FT6206 don't connect to the normal hardware I2C pins on the PCB you are using.

What you therefore need is I2C to be bitbanged using a Cfunction?

This is fine, Geoff has included Basic callable I2C CFunction routines in the normal distribution for the Micromite. The documentation and the CFunction is in the file "Embedded C Modules\I2CPort.PDF" when you download the firmware from his site.

Looking forward, if all goes according to plan, V5.3 will include hooks to allow loadable touch drivers to be written in the same way as loadable display drivers

Edited by matherp 2016-11-05

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