Paint for the FRDM-KL25Z
Dependencies: mbed TFT_fonts SPI_TFT_ILI9341
touch.cpp
- Committer:
- ecowboy
- Date:
- 2019-01-12
- Revision:
- 7:a72b2f80ae04
- Parent:
- 6:13d0de9e679c
File content as of revision 7:a72b2f80ae04:
/* KL25Z mbed library for ILI9341 touch devices * SPI Interface * Uses Peter Drescher ILI9341 Library * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "touch.h" #include "mbed.h" TouchScreen::TouchScreen(PinName xp, PinName yp, PinName xm, PinName ym) { } int TouchScreen::readTouch(PinName a, PinName i, PinName n, PinName m){ AnalogIn _a(a); AnalogIn _i(i); DigitalOut _n(n); DigitalOut _m(m); int a1=1; int a2=0; _n = 1; _m = 0; wait_us(50); a1 = _a.read_u16(); wait_us(50); a2 = _a.read_u16(); wait_us(50); _n=0; return (a1+a2)/2; } int map(float value, float fromSource, float toSource, float fromTarget, float toTarget){ return (value - fromSource) / (toSource - fromSource) * (toTarget - fromTarget) + fromTarget; }