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ditec fix missing parity bits

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This commit is contained in:
MX
2026-02-28 15:20:41 +03:00
parent 851303d191
commit 6085dc0842
1 changed files with 13 additions and 0 deletions
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lib/subghz/protocols/ditec_gol4.c
+13
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@@ -88,6 +88,14 @@ static uint8_t gol4_bit_reverse(uint8_t b) {
return result;
}
static uint8_t gol4_bit_parity(uint8_t b) {
uint8_t p = 0;
for(uint8_t i = 0; i < 8; i++) {
if((b >> i) & 1u) p ^= 1u;
}
return p;
}
static uint8_t gol4_lcg_step(uint8_t seed, uint8_t steps) {
uint8_t x = seed & 0xFF;
steps &= 0xFF;
@@ -178,6 +186,9 @@ static void gol4_encode_bitrev_and_rotate(uint8_t* raw) {
raw[5] = gol4_bit_reverse(raw[5]);
raw[6] = gol4_bit_reverse(raw[6]);
uint8_t p5 = gol4_bit_parity(raw[5]);
uint8_t p6 = gol4_bit_parity(raw[6]);
uint8_t carry = 0;
for(uint8_t r = 0; r < 3; r++) {
for(int8_t i = 6; i >= 2; i--) {
@@ -186,6 +197,8 @@ static void gol4_encode_bitrev_and_rotate(uint8_t* raw) {
carry = new_carry;
}
}
raw[6] = (p5 == p6) ? (uint8_t)(raw[6] & 0xFBu) : (uint8_t)(raw[6] | 0x04u);
}
static bool gol4_rolling_encode(uint8_t* raw) {