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Change TPMS Toyota to match shorter preamble

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This commit is contained in:
Christian W. Zuckschwerdt
2018-12-22 16:28:57 +01:00
parent b087ec3ea1
commit cfb2787ae6
1 changed files with 4 additions and 3 deletions
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7
src/devices/tpms_toyota.c
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@@ -25,7 +25,8 @@
#include "decoder.h"
// full preamble is 0101 0101 0011 11 = 55 3c
static const unsigned char preamble_pattern[2] = {0x54, 0xf0}; // 12 bits
// could be shorter 11 0101 0011 11
static const unsigned char preamble_pattern[2] = {0xa9, 0xe0}; // 12 bits (but pass last bit to decode)
static int tpms_toyota_decode(r_device *decoder, bitbuffer_t *bitbuffer, unsigned row, unsigned bitpos)
{
@@ -83,9 +84,9 @@ static int tpms_toyota_callback(r_device *decoder, bitbuffer_t *bitbuffer) {
int events = 0;
// Find a preamble with enough bits after it that it could be a complete packet
while ((bitpos = bitbuffer_search(bitbuffer, 0, bitpos, (const uint8_t *)&preamble_pattern, 12)) + 158 <=
while ((bitpos = bitbuffer_search(bitbuffer, 0, bitpos, (const uint8_t *)&preamble_pattern, 12)) + 156 <=
bitbuffer->bits_per_row[0]) {
events += tpms_toyota_decode(decoder, bitbuffer, 0, bitpos + 12);
events += tpms_toyota_decode(decoder, bitbuffer, 0, bitpos + 11);
bitpos += 2;
}