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crc

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This commit is contained in:
Gunnar Skjold
2024-03-19 21:50:09 +01:00
parent f68666bd4a
commit 14eb27e0d9
1 changed files with 5 additions and 7 deletions
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12
lib/AmsDecoder/src/crc.cpp
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@@ -34,14 +34,13 @@ uint16_t crc16 (const uint8_t *p, int len) {
return crc;
}
uint16_t crc16_1021(const uint8_t *p, int len)
{
uint16_t crc = 0x0000;
for(uint16_t i = 0; i < len; i++) {
uint16_t mask = 0x80;
uint16_t crc16_1021(const uint8_t *p, int len) {
uint32_t crc = 0x0000;
for(int i = 0; i < len; i++) {
int mask = 0x80;
while(mask > 0) {
crc <<= 1;
if (p[i] & mask) {
if (p[i] & mask){
crc |= 1;
}
mask>>=1;
@@ -52,5 +51,4 @@ uint16_t crc16_1021(const uint8_t *p, int len)
}
}
return crc;
}