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Handle Init (I) messages instead of discarding payload #21

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Handle Init (I) messages instead of discarding payload #21

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18 changes: 11 additions & 7 deletions CMRI.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -72,19 +72,20 @@ bool CMRI::process()

bool CMRI::process_char(char c)
{
// if it's a SET that's fine do nothing
// if it's an INIT that's also fine, we don't really care
// if it's a GET, well, do nothing since it must be someone else replying
// if it's a POLL then reply straight away with our data
// if it's a SET, update the output buffer
// if it's an INIT, the payload was consumed and the sketch can handle it
// if it's a GET, ignore — must be another node replying
// if it's a POLL, reply straight away with our input data
switch (_decode(c))
{
case POLL:
transmit();
return true;

case SET:
case INIT:
return true;

default:
return false;
}
Expand Down Expand Up @@ -192,8 +193,11 @@ uint8_t CMRI::_decode(uint8_t c)
break;

case DECODE_CMD:
_rx_packet_type = c;
if (c == SET)
_mode = DECODE_DATA;
else if (c == INIT)
_mode = DECODE_DATA;
else if (c == POLL)
goto POSTAMBLE_POLL;
else
Expand Down Expand Up @@ -242,7 +246,7 @@ uint8_t CMRI::_decode(uint8_t c)

POSTAMBLE_SET:
_mode = PREAMBLE_1;
return SET;
return _rx_packet_type;

POSTAMBLE_POLL:
_mode = PREAMBLE_1;
Expand Down