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Send onoff packets from setAccessory

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This commit is contained in:
Harald Barth 2022-05-22 23:05:09 +02:00
parent 17fb921678
commit d3b72dc4fc
2 changed files with 17 additions and 7 deletions
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20
DCC.cpp
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@ -8,7 +8,7 @@
* © 2020-2021 Chris Harlow
* All rights reserved.
*
* This file is part of Asbelos DCC API
* This file is part of DCC-EX
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -229,7 +229,12 @@ uint32_t DCC::getFunctionMap(int cab) {
return (reg<0)?0:speedTable[reg].functions;
}
void DCC::setAccessory(int address, byte port, bool gate) {
void DCC::setAccessory(int address, byte port, bool gate, byte onoff /*= 2*/) {
// onoff is tristate:
// 0 => send off packet
// 1 => send on packet
// >1 => send both on and off packets.
// An accessory has an address, 4 ports and 2 gates (coils) each. That's how
// the initial decoders were orgnized and that influenced how the DCC
// standard was made.
@ -244,14 +249,19 @@ void DCC::setAccessory(int address, byte port, bool gate) {
byte b[2];
// first byte is of the form 10AAAAAA, where AAAAAA represent 6 least signifcant bits of accessory address
// second byte is of the form 1AAACPPG, where C should be 1, PP the ports and G the gate
// second byte is of the form 1AAACPPG, where C is 1 for on, PP the ports 0 to 3 and G the gate (coil).
b[0] = address % 64 + 128;
b[1] = ((((address / 64) % 8) << 4) + (port % 4 << 1) + gate % 2) ^ 0xF8;
DCCWaveform::mainTrack.schedulePacket(b, 2, 3); // Repeat the packet three times
if (onoff != 0) {
DCCWaveform::mainTrack.schedulePacket(b, 2, 3); // Repeat on packet three times
#if defined(EXRAIL_ACTIVE)
RMFT2::activateEvent(address<<2|port,gate);
#endif
}
if (onoff != 1) {
b[1] &= ~0x08; // set C to 0
DCCWaveform::mainTrack.schedulePacket(b, 2, 3); // Repeat off packet three times
}
}
//

2
DCC.h
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@ -66,7 +66,7 @@ public:
static int getFn(int cab, int16_t functionNumber);
static uint32_t getFunctionMap(int cab);
static void updateGroupflags(byte &flags, int16_t functionNumber);
static void setAccessory(int aAdd, byte aNum, bool activate);
static void setAccessory(int address, byte port, bool gate, byte onoff = 2);
static bool writeTextPacket(byte *b, int nBytes);
// ACKable progtrack calls bitresults callback 0,0 or -1, cv returns value or -1