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Fix intermittent, early boot short start bit errors

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This commit is contained in:
Allen Hill
2026-07-21 13:22:19 -07:00
parent 909915730b
commit a99fe56aae
3 changed files with 37 additions and 9 deletions
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src/avclan/bus.cc
+5 -2
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@@ -289,7 +289,10 @@ auto Bus::read(uint16_t address, Frame::Print print)
switch (err.errno) {
case POOL_EMPTY: puts("failed Frame alloc"); break;
case BAD_STARTBIT: fputs("bad start bit (other)", stdout); break;
case STARTBIT_TOO_SHORT: fputs("bad start bit (short)", stdout); break;
case STARTBIT_MISSED: fputs("missed start bit", stdout); break;
case STARTBIT_MALFORMED:
fputs("malformed start bit (external cause)", stdout);
break;
case STARTBIT_TOO_LONG: fputs("bad start bit (long)", stdout); break;
case BAD_CONTROLLER_PARITY:
fputs("reading controller addr.", stdout);
@@ -312,7 +315,7 @@ auto Bus::read(uint16_t address, Frame::Print print)
}
// Only print if some data has been correctly received
if (print.print && (err.errno < STARTBIT_TOO_SHORT)) {
if (print.print && (err.errno < STARTBIT_MISSED)) {
if (err.errno > BAD_DATA_PARITY)
in->length = 0;
in->print(print);