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@@ -11,10 +11,15 @@
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static bool decode(uint8_t *bits, uint32_t numbytes, uint32_t numbits, ProtoViewMsgInfo *info) {
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if (numbits < 30) return false;
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- const char *sync_patterns[3] = {
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- "10000000000000000000000000000001", /* 30 zero bits. */
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- "100000000000000000000000000000001", /* 31 zero bits. */
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- "1000000000000000000000000000000001", /* 32 zero bits. */
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+
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+ /* Test different pulse + gap + first byte possibilities. */
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+ const char *sync_patterns[6] = {
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+ "100000000000000000000000000000011101", /* 30 times gap + one. */
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+ "100000000000000000000000000000010001", /* 30 times gap + zero. */
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+ "1000000000000000000000000000000011101", /* 31 times gap + one. */
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+ "1000000000000000000000000000000010001", /* 31 times gap + zero. */
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+ "10000000000000000000000000000000011101", /* 32 times gap + one. */
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+ "10000000000000000000000000000000010001", /* 32 times gap + zero. */
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};
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uint32_t off;
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@@ -24,11 +29,11 @@ static bool decode(uint8_t *bits, uint32_t numbytes, uint32_t numbits, ProtoView
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if (off != BITMAP_SEEK_NOT_FOUND) break;
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}
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if (off == BITMAP_SEEK_NOT_FOUND) return false;
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- if (DEBUG_MSG) FURI_LOG_E(TAG, "B4B1 preamble at: %lu",off);
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+ if (DEBUG_MSG) FURI_LOG_E(TAG, "B4B1 preamble id:%d at: %lu",j,off);
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info->start_off = off;
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- // Seek data setction. Why -1? Last bit is data.
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- off += strlen(sync_patterns[j])-1;
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+ // Seek data setction. Why -5? Last 5 half-bit-times are data.
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+ off += strlen(sync_patterns[j])-5;
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uint8_t d[3]; /* 24 bits of data. */
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uint32_t decoded =
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antirez