baresynchronizer

Overview ¶

Package baresynchronizer reads 4 byte bare trices and syncs internally if byte stream inconsistent.

The sychronisation is possible by detecting a sequence of 4 bytes equal 0x16161616. 0x16161616 is a sync trice: `#define TRICE_RTT_SYNC do{ TRICE16_1( Id(5654), "%d\b\b\b\b", 5654 ); }while(0)`. Because 5654=0x1616 is a reserved TRICE ID and the bare trice byte stream has an ID every 2 bytes it is impossible to have 0x16161616 inside the bare trice byte stream despite of the sync message. On a Read the bare baresynchronizer tries to get a fair amount of bytes and scans them for 0x16161616. If the found 0x16161616 is not on a 4 byte aligned offset, the oldest 1-3 bytes are discarded to adjust the offset. If the baresynchronizer does not find a 0x16161616 sequence it assumes to be in sync. The target should send sync trice messages cyclically. The baresynchronizer does not deliver the 0x16161616 sync packages.