mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-23 08:06:13 +01:00
128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
/*
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* © 2024, Chris Harlow. All rights reserved.
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*
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* This file is part of DCC++EX API
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* It is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <Arduino.h>
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#include "IODevice.h"
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#include "DIAG.h"
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#include "IO_TM1638.h"
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#include "TM1638x.h"
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const uint8_t HIGHFLASH _digits[16]={
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0b00111111,0b00000110,0b01011011,0b01001111,
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0b01100110,0b01101101,0b01111101,0b00000111,
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0b01111111,0b01101111,0b01110111,0b01111100,
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0b00111001,0b01011110,0b01111001,0b01110001
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};
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// Constructor
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TM1638::TM1638(VPIN firstVpin, byte clk_pin,byte dio_pin,byte stb_pin){
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_firstVpin = firstVpin;
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_nPins = 8;
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tm=new TM1638x(clk_pin,dio_pin,stb_pin);
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_buttons=0;
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_leds=0;
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_lastLoop=micros();
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addDevice(this);
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}
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void TM1638::create(VPIN firstVpin, byte clk_pin,byte dio_pin,byte stb_pin) {
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if (checkNoOverlap(firstVpin,8))
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new TM1638(firstVpin, clk_pin,dio_pin,stb_pin);
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}
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void TM1638::_begin() {
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tm->reset();
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tm->test();
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_display();
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}
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void TM1638::_loop(unsigned long currentMicros) {
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if (currentMicros - _lastLoop > (1000000UL/LoopHz)) {
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_buttons=tm->getButtons();// Read the buttons
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_lastLoop=currentMicros;
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}
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// DIAG(F("TM1638 buttons %x"),_buttons);
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}
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void TM1638::_display() {
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DIAG(F("TM1638 Configured on Vpins:%u-%u"), _firstVpin, _firstVpin+_nPins-1);
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}
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// digital read gets button state
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int TM1638::_read(VPIN vpin) {
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byte pin=vpin - _firstVpin;
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bool result=bitRead(_buttons,pin);
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// DIAG(F("TM1638 read (%d) buttons %x = %d"),pin,_buttons,result);
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return result;
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}
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// digital write sets led state
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void TM1638::_write(VPIN vpin, int value) {
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// TODO.. skip if no state change
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tm->writeLed(vpin - _firstVpin + 1,value!=0);
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}
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// Analog write sets digit displays
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void TM1638::_writeAnalogue(VPIN vpin, int lowBytes, uint8_t mode, uint16_t highBytes) {
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DIAG(F("TM1638 w(v=%d,l=%d,m=%d,h=%d,lx=%x,hx=%x"),
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vpin,lowBytes,mode,highBytes,lowBytes,highBytes);
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// mode is in DataFormat defined above.
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byte formatLength=mode & 0x0F; // last 4 bits
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byte formatType=mode & 0xF0; //
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int8_t leftDigit=vpin-_firstVpin; // 0..7 from left
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int8_t rightDigit=leftDigit+formatLength-1; // 0..7 from left
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// loading is done right to left startDigit first
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int8_t startDigit=7-rightDigit; // reverse as 7 on left
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int8_t lastDigit=7-leftDigit; // reverse as 7 on left
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uint32_t value=highBytes;
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value<<=16;
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value |= (uint16_t)lowBytes;
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DIAG(F("TM1638 fl=%d ft=%x sd=%d ld=%d v=%l vx=%X"),
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formatLength,formatType,
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startDigit,lastDigit,value,value);
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while(startDigit<=lastDigit) {
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switch (formatType) {
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case _DF_DECIMAL:// decimal (leading zeros)
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tm->displayDig(startDigit,GETHIGHFLASH(_digits,(value%10)));
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value=value/10;
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break;
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case _DF_HEX:// HEX (leading zeros)
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tm->displayDig(startDigit,GETHIGHFLASH(_digits,(value & 0x0F)));
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value>>=4;
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break;
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case _DF_RAW:// Raw 7-segment pattern
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tm->displayDig(startDigit,value & 0xFF);
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value>>=8;
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break;
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default:
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DIAG(F("TM1368 invalid mode 0x%x"),mode);
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return;
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}
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startDigit++;
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}
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}
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