Nathan Yonkee / Mbed OS Seeed_Grove_4_Digit_Display_Clock

fork of seeed studio 4-digit display for st nucleo board

Dependencies:   Data_Clock_Pair Seeed_Chainable_LED Seeed_Four_Digit_Disp Seeed_IR_Temp_Sensor Seeed_Led_Bar

Fork of Seeed_Grove_4_Digit_Display_Clock by Seeed

SeeedQTouch.h@20:2e72ddd68cda, 2017-06-22 (annotated)

Committer:
tulanthoar
Date:
Thu Jun 22 12:17:29 2017 -0600
Revision:
20:2e72ddd68cda
add q touch which doesn't work yet

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tulanthoar 20:2e72ddd68cda 1 #ifndef MBED_SEEED_Q_TOUCH_H
tulanthoar 20:2e72ddd68cda 2 #define MBED_SEEED_Q_TOUCH_H
tulanthoar 20:2e72ddd68cda 3 #include "mbed.h"
tulanthoar 20:2e72ddd68cda 4 #include "DataClockPair.h"
tulanthoar 20:2e72ddd68cda 5
tulanthoar 20:2e72ddd68cda 6 #define QTOUCH_REG_RESET 0X39 // reset
tulanthoar 20:2e72ddd68cda 7 class SeeedQTouch {
tulanthoar 20:2e72ddd68cda 8
tulanthoar 20:2e72ddd68cda 9 static const int devAddr_ = 0x1b;
tulanthoar 20:2e72ddd68cda 10 int readOpCode_;
tulanthoar 20:2e72ddd68cda 11 int writeOpCode_;
tulanthoar 20:2e72ddd68cda 12 static const int stateReg_ = 0x03;
tulanthoar 20:2e72ddd68cda 13 static const int calibrateReg_ = 0x38;
tulanthoar 20:2e72ddd68cda 14 I2C i2c_;
tulanthoar 20:2e72ddd68cda 15 int read_register_(int address, Serial* pc);
tulanthoar 20:2e72ddd68cda 16 int read_state_(Serial* pc);
tulanthoar 20:2e72ddd68cda 17 public:
tulanthoar 20:2e72ddd68cda 18 SeeedQTouch(DataClockPair pins);
tulanthoar 20:2e72ddd68cda 19 int key_touch(Serial* pc);
tulanthoar 20:2e72ddd68cda 20 };
tulanthoar 20:2e72ddd68cda 21
tulanthoar 20:2e72ddd68cda 22 SeeedQTouch::SeeedQTouch(DataClockPair pins) : i2c_(pins.dataPin, pins.clockPin) {
tulanthoar 20:2e72ddd68cda 23 /* readOpCode_ = devAddr_ | 0x01; */
tulanthoar 20:2e72ddd68cda 24 /* writeOpCode_ = devAddr_ & 0xFE; */
tulanthoar 20:2e72ddd68cda 25 /* writeOpCode_ = devAddr_ | 0x00; */
tulanthoar 20:2e72ddd68cda 26 readOpCode_ = devAddr_;
tulanthoar 20:2e72ddd68cda 27 writeOpCode_ = devAddr_;
tulanthoar 20:2e72ddd68cda 28 }
tulanthoar 20:2e72ddd68cda 29
tulanthoar 20:2e72ddd68cda 30 int SeeedQTouch::read_register_(int address, Serial* pc) {
tulanthoar 20:2e72ddd68cda 31 int success;
tulanthoar 20:2e72ddd68cda 32 char dataWrite[2];
tulanthoar 20:2e72ddd68cda 33 char resetWrite[2];
tulanthoar 20:2e72ddd68cda 34 char dataRead[2];
tulanthoar 20:2e72ddd68cda 35 dataWrite[0] = 0x00;
tulanthoar 20:2e72ddd68cda 36 dataWrite[1] = 0x55;
tulanthoar 20:2e72ddd68cda 37 resetWrite[0] = QTOUCH_REG_RESET;
tulanthoar 20:2e72ddd68cda 38 resetWrite[1] = 0x55;
tulanthoar 20:2e72ddd68cda 39 /* int success = i2c_.write(devAddr_, dataWrite, 1, 0); */
tulanthoar 20:2e72ddd68cda 40 /* if( pc ) pc->printf("requesting register %i success is %i", dataWrite[0], success); */
tulanthoar 20:2e72ddd68cda 41 /* dataWrite[0] = 0x55; */
tulanthoar 20:2e72ddd68cda 42 success = i2c_.write(writeOpCode_, resetWrite, 2);
tulanthoar 20:2e72ddd68cda 43 success = i2c_.write(writeOpCode_, dataWrite, 2);
tulanthoar 20:2e72ddd68cda 44 if( pc ) pc->printf("requesting register %i success is %i", dataWrite[0], success);
tulanthoar 20:2e72ddd68cda 45 /* dataWrite[0] = stateReg_; */
tulanthoar 20:2e72ddd68cda 46 /* wait_ms(1); */
tulanthoar 20:2e72ddd68cda 47 /* i2c_.start(); */
tulanthoar 20:2e72ddd68cda 48 /* wait_ms(1); */
tulanthoar 20:2e72ddd68cda 49 /* success = i2c_.write(devAddr_, dataWrite, 1, 1); */
tulanthoar 20:2e72ddd68cda 50 /* wait_ms(1); */
tulanthoar 20:2e72ddd68cda 51 success = i2c_.read(readOpCode_, dataRead, 2);
tulanthoar 20:2e72ddd68cda 52 if( pc ) pc->printf("return value is %i or %i success is %i", dataRead[0] , dataRead[1], success);
tulanthoar 20:2e72ddd68cda 53 /* i2c_.stop(); */
tulanthoar 20:2e72ddd68cda 54 wait_ms(1);
tulanthoar 20:2e72ddd68cda 55 /* int result; */
tulanthoar 20:2e72ddd68cda 56 /* i2c_.start(); */
tulanthoar 20:2e72ddd68cda 57 wait_ms(1);
tulanthoar 20:2e72ddd68cda 58 /* result = i2c_.read(1); */
tulanthoar 20:2e72ddd68cda 59 wait_ms(1);
tulanthoar 20:2e72ddd68cda 60 /* i2c_.stop(); */
tulanthoar 20:2e72ddd68cda 61 return dataRead[0];
tulanthoar 20:2e72ddd68cda 62 }
tulanthoar 20:2e72ddd68cda 63
tulanthoar 20:2e72ddd68cda 64 int SeeedQTouch::read_state_(Serial* pc) {
tulanthoar 20:2e72ddd68cda 65 return read_register_(0x03, pc);
tulanthoar 20:2e72ddd68cda 66 }
tulanthoar 20:2e72ddd68cda 67
tulanthoar 20:2e72ddd68cda 68 int SeeedQTouch::key_touch(Serial* pc = 0) {
tulanthoar 20:2e72ddd68cda 69 int keys = read_state_(pc);
tulanthoar 20:2e72ddd68cda 70 return(keys);
tulanthoar 20:2e72ddd68cda 71 }
tulanthoar 20:2e72ddd68cda 72 #endif