Oxford CWM Team
This is a simple program using the Mikroelectronika TFT resistive touchscreen to create a sketchpad application.
Dependencies: SPI_TFT_ILI9341 TFT_fonts mbed
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TFT_Mikroelectronika_IL9341
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Oxford CWM Team
Code to make a simple sketchpad using the touchscreen from Mikroelectronika
The Mikroelectronika touch screen is a good sized display we are using for the first time in 2016. It's got a touch panel layer and can be addressed by either SPI or parallel buses.
http://www.mikroe.com/add-on-boards/display/tft-proto/
Pin connections for use with an mbed
Referring to the pin names on the screen pcb
Pins:
| Screen | mbed name | KL25Z example |
|---|---|---|
| sdi | mosi | PTD2 |
| sdo | miso | PTD3 |
| rs | sck | PTD1 |
| RD | GND | GND |
| IM0 | GND | GND |
| IM1 | 3.3V | 3V3 |
| IM2 | 3.3V | 3V3 |
| IM3 | 3.3V | 3V3 |
| CS | digitalout pin | PTD5 |
| RST | digitaloutpin | PTD0 |
| WR | digitaloutpin | PTA13 |
You will need 2 wires to drive the backlight on leda and ledk (anode(connect to +V via a current limiting resistor) and cathode) Link +3.3V to IM1, IM2, IM3 to setup spi communication mode link
mbed.bld@7:c2bc477a07da, 2016-06-15 (annotated)
- Committer:
- cstevens
- Date:
- Wed Jun 15 09:00:27 2016 +0000
- Revision:
- 7:c2bc477a07da
- Parent:
- 1:e0479f60cd48
working versin with a few problems - mostly that the touch identification routine is still not 10% accurATE at telling when an actual touch has occurred.. random noise on the adcs tends to make the occasional spot apear.; fix for thi would be to detec
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| pegcjs | 1:e0479f60cd48 | 1 | http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1 |