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CommandStation-EX/IO_I2CRailcom3.h
2025-02-28 01:16:03 +00:00

74 lines
2.5 KiB
C++

/*
* © 2024, Henk Kruisbrink & Chris Harlow. All rights reserved.
* © 2023, Neil McKechnie. All rights reserved.
*
* This file is part of DCC++EX API
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
/*
*
* Dec 2023, Added NXP SC16IS752 I2C Dual UART
* The SC16IS752 has 64 bytes TX & RX FIFO buffer
* First version without interrupts from I2C UART and only RX/TX are used, interrupts may not be
* needed as the RX Fifo holds the reply
*
* Jan 2024, Issue with using both UARTs simultaniously, the secod uart seems to work but the first transmit
* corrupt data. This need more analysis and experimenatation.
* Will push this driver to the dev branch with the uart fixed to 0
* Both SC16IS750 (single uart) and SC16IS752 (dual uart, but only uart 0 is enable)
*
* myHall.cpp configuration syntax:
*
* I2CRailcom::create(1st vPin, vPins, I2C address);
*
* myAutomation configuration
* HAL(I2CRailcom, 1st vPin, vPins, I2C address)
* Parameters:
* 1st vPin : First virtual pin that EX-Rail can control to play a sound, use PLAYSOUND command (alias of ANOUT)
* vPins : Total number of virtual pins allocated (2 vPins are supported, one for each UART)
* 1st vPin for UART 0, 2nd for UART 1
* I2C Address : I2C address of the serial controller, in 0x format
*/
#ifndef IO_I2CRailcom3_h
#define IO_I2CRailcom3_h
#include "Arduino.h"
#include "IODevice.h"
// Debug and diagnostic defines, enable too many will result in slowing the driver
#define DIAG_I2CRailcom
class I2CRailcom3 : public IODevice {
private:
byte cutoutCounter;
public:
// Constructor
I2CRailcom3(VPIN firstVpin, int nPins, I2CAddress i2cAddress);
static void create(VPIN firstVpin, int nPins, I2CAddress i2cAddress) ;
void _begin() ;
void _loop(unsigned long currentMicros) override ;
void _display() override ;
private:
};
#endif // IO_I2CRailcom_h