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fix: retry setting the tx pgn list on ngt-1 #134

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merged 1 commit into from
Oct 9, 2020
+14 −1
Merged

fix: retry setting the tx pgn list on ngt-1 #134

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15 changes: 14 additions & 1 deletion lib/serial.js
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,7 @@ function SerialStream (options) {
this.reconnect = options.reconnect || true
this.serial = null
this.options = options
this.transmitPGNRetries = 2

this.transmitPGNs = defaultTransmitPGNs
if ( this.options.transmitPGNs ) {
Expand Down Expand Up @@ -351,12 +352,24 @@ function processNTGMessage(that, buffer, len)
})
debug('needed pgns: %j', that.neededTransmitPGNs)
} else if ( command === 0x49 && buffer[3] === 4 ) {
if ( that.neededTransmitPGNs.length ) {
//I think this means done receiving the pgns list
if ( !that.neededTransmitPGNs ) {
if ( that.transmitPGNRetries-- > 0 ) {
debug('did not get tx pgn list, retrying...')
that.serial.write(composeRequestTXPGNList())
} else {
const msg = 'could not set transmit pgn list'
that.options.app.setProviderStatus(msg)
console.warn(msg)
enableOutput(that)
}
} else if ( that.neededTransmitPGNs.length ) {
enableTXPGN(that.serial, that.neededTransmitPGNs[0])
} else {
enableOutput(that)
}
} else if ( command === 0x47 ) {
//response from enable a pgn
if ( buffer[3] === 1 ) {
debug('enabled %d', that.neededTransmitPGNs[0])
that.neededTransmitPGNs = that.neededTransmitPGNs.slice(1)
Expand Down