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DCC Turnouts: Store address/subaddress separately. Enable address 0.

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The range of accessory decoder addresses for the <a> command is 0-511 in line with the DCC packet contents.  The turnout command previously rejected address 0; this has been changed to the same range of addresses can be used by both commands, i.e. address 0-511 and subaddress 0-3.  The linear address mapping remains so that linear address 1 is addr/subaddr 1/0; i.e. the first decoder address is not accessible by linear address.
This commit is contained in:
Neil McKechnie
2021-09-22 10:38:11 +01:00
parent e59e07b971
commit e287af83ff
3 changed files with 18 additions and 15 deletions
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8
DCCEXParser.cpp
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@@ -736,15 +736,17 @@ bool DCCEXParser::parseT(Print *stream, int16_t params, int16_t p[])
if (!VpinTurnout::create(p[0], p[2])) return false;
} else
if (params >= 3 && p[1] == HASH_KEYWORD_DCC) {
if (params==4 && p[2]>0 && p[2]<=512 && p[3]>=0 && p[3]<4) { // <T id DCC n m>
// <T id DCC addr subadd> 0<=addr<=511, 0<=subadd<=3 (like <a> command).<T>
if (params==4 && p[2]>=0 && p[2]<512 && p[3]>=0 && p[3]<4) { // <T id DCC n m>
if (!DCCTurnout::create(p[0], p[2], p[3])) return false;
} else if (params==3 && p[2]>0 && p[2]<=512*4) { // <T id DCC nn>, 1<=nn<=2048
// Linearaddress 1 maps onto decoder address 1/0 (not 0/0!).
if (!DCCTurnout::create(p[0], (p[2]-1)/4+1, (p[2]-1)%4)) return false;
} else
return false;
} else
if (params==3) { // legacy <T id n n> for DCC accessory
if (p[1]>0 && p[1]<=512 && p[2]>=0 && p[2]<4) {
if (params==3) { // legacy <T id addr subadd> for DCC accessory
if (p[1]>=0 && p[1]<512 && p[2]>=0 && p[2]<4) {
if (!DCCTurnout::create(p[0], p[1], p[2])) return false;
} else
return false;