F439_CPP_SPI_RA8875_TFT_LCD_04 1.0
STM32F439 SPI RA8875 7-inch TFT display with FRAM-backed touch calibration, built on the STM32_GFX, STM32_RA8875 and STM32_MB85RS64V libraries
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touchCalibrationStorage.hpp
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1
32#ifndef INC_TOUCHCALIBRATIONSTORAGE_HPP_
33#define INC_TOUCHCALIBRATIONSTORAGE_HPP_
34
35#include "Adafruit_RA8875.h"
36#include "MB85RS64V.hpp"
37
39constexpr uint16_t TOUCH_CAL_ADDRESS = 0x0100;
40
42constexpr uint16_t TOUCH_CAL_HEADER_ADDRESS = 0x0120;
43
44void touchCalibrationAttachStorage(Adafruit_RA8875 *display, MB85RS64V *fram);
45
46bool touchCalibrationLoad(Adafruit_RA8875 *display, MB85RS64V *fram, tsMatrix_t *matrix);
47
48bool touchCalibrationSave(Adafruit_RA8875 *display, MB85RS64V *fram, tsMatrix_t *matrix);
49
50#endif /* INC_TOUCHCALIBRATIONSTORAGE_HPP_ */
Adafruit_RA8875.h
Adafruit_RA8875
Class that stores state and functions for interacting with the RA8875 display controller.
Definition Adafruit_RA8875.h:103
MB85RS64V
Driver for one MB85RS64V SPI FRAM (8192 bytes) on an STM32 HAL SPI bus.
Definition MB85RS64V.hpp:78
tsMatrix_t
Definition Adafruit_RA8875.h:93
touchCalibrationSave
bool touchCalibrationSave(Adafruit_RA8875 *display, MB85RS64V *fram, tsMatrix_t *matrix)
Saves the calibration matrix to the FRAM and checks it by reading it back.
Definition touchCalibrationStorage.cpp:175
touchCalibrationLoad
bool touchCalibrationLoad(Adafruit_RA8875 *display, MB85RS64V *fram, tsMatrix_t *matrix)
Loads the calibration matrix from the FRAM if a valid one is stored.
Definition touchCalibrationStorage.cpp:114
TOUCH_CAL_ADDRESS
constexpr uint16_t TOUCH_CAL_ADDRESS
FRAM address of the calibration matrix block written by the RA8875 library.
Definition touchCalibrationStorage.hpp:39
touchCalibrationAttachStorage
void touchCalibrationAttachStorage(Adafruit_RA8875 *display, MB85RS64V *fram)
Registers the FRAM read and write callbacks with the display library.
Definition touchCalibrationStorage.cpp:94
TOUCH_CAL_HEADER_ADDRESS
constexpr uint16_t TOUCH_CAL_HEADER_ADDRESS
FRAM address of the 12-byte validity header.
Definition touchCalibrationStorage.hpp:42