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[feat][crc] add BFLB_Soft_CRC32_Ex api

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This commit is contained in:
qqwang 2021-08-05 19:50:12 +08:00
parent ee5bc44d74
commit 48f270d6f2
1 changed files with 10 additions and 10 deletions
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20
common/soft_crc/softcrc.c
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@ -169,15 +169,15 @@ uint32_t BFLB_Soft_CRC32_Table(void *dataIn, uint32_t len)
uint32_t ATTR_TCM_SECTION BFLB_Soft_CRC32_Ex(uint32_t initial, void *dataIn, uint32_t len)
{
uint8_t i;
uint32_t crc = ~initial; // Initial value
uint8_t *data = (uint8_t *)dataIn;
while (len--) {
crc ^= *data++; // crc ^= *data; data++;
for (i = 0; i < 8; ++i) {
if (crc & 1) {
crc = (crc >> 1) ^ 0xEDB88320; // 0xEDB88320= reverse 0x04C11DB7
} else {
uint32_t crc = ~initial; // Initial value
uint8_t *data=(uint8_t *)dataIn;
while(len--){
crc ^= *data++; // crc ^= *data; data++;
for (i = 0; i < 8; ++i){
if (crc & 1){
crc = (crc >> 1) ^ 0xEDB88320;// 0xEDB88320= reverse 0x04C11DB7
}else{
crc = (crc >> 1);
}
}
@ -189,6 +189,6 @@ uint32_t ATTR_TCM_SECTION BFLB_Soft_CRC32_Ex(uint32_t initial, void *dataIn, uin
__WEAK__
uint32_t ATTR_TCM_SECTION BFLB_Soft_CRC32(void *dataIn, uint32_t len)
{
return BFLB_Soft_CRC32_Ex(0, dataIn, len);
return BFLB_Soft_CRC32_Ex(0,dataIn,len);
}
#endif