Update pi4j and address api changes #329
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cal-pratt
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Jun 21, 2017
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Needs to be tested. Will be really evident if the rov works or not lol. Trail and error is the name of this game
| try { | ||
| serial.write(new byte[] {START_BYTE, maestro, COMMAND_GET_POSITION, channel}); | ||
| final ByteBuffer response = ByteBuffer.allocate(4).putChar(serial.read()).putChar(serial.read()); | ||
| final ByteBuffer response = ByteBuffer.allocate(4).put(serial.read(), 0, 4); |
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This looks like different logic. You only have one serial read.
putChar also writes two bytes into the buffer.
This seems weird in the first place. We could maybe jut write:
return ByteBuffer.allocate(2).order(ByteOrder.LITTLE_ENDIAN).put(
new byte[]{serial.read(), serial.read()}).getShort(0);
| try { | ||
| serial.write(new byte[] {START_BYTE, maestro, COMMAND_GET_ERRORS}); | ||
| final ByteBuffer response = ByteBuffer.allocate(2).put(serial.read(), 0, 2); | ||
| return BitSet.valueOf(new byte[]{response.get(1), response.get(0)}); |
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On second thought, the byte reads don't even matter because we don't use the voltage or current sensor |
cal-pratt
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Jun 22, 2017
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We have to update pi4j to fix #328. Doing so has broken some of our code, mostly catching new exceptions when using serial.
@cal-pratt check the changes to MaestroChannel closely because I might have screwed up your byte management. serial.read() returns a byte array instead of a char now.