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sign-conversion fixes

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This commit is contained in:
iceman1001 2021-04-16 22:14:14 +02:00
parent 9c2f9f5530
commit 8f4ba94a6e
2 changed files with 3 additions and 4 deletions
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6
armsrc/iso15693.c
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@ -245,7 +245,7 @@ void CodeIso15693AsTag(uint8_t *cmd, size_t len) {
ts->buf[++ts->max] = 0x1D; // 00011101
// data
for (int i = 0; i < len; i += 2) {
for (size_t i = 0; i < len; i += 2) {
ts->buf[++ts->max] = encode_4bits[cmd[i] & 0xF];
ts->buf[++ts->max] = encode_4bits[cmd[i] >> 4];
ts->buf[++ts->max] = encode_4bits[cmd[i + 1] & 0xF];
@ -515,7 +515,7 @@ static RAMFUNC int Handle15693SamplesFromTag(uint16_t amplitude, DecodeTag_t *ta
tag->shiftReg |= 0x80;
tag->bitCount++;
if (tag->bitCount == 8) {
tag->output[tag->len] = tag->shiftReg;
tag->output[tag->len] = tag->shiftReg & 0xFF;
tag->len++;
if (tag->len > tag->max_len) {
@ -540,7 +540,7 @@ static RAMFUNC int Handle15693SamplesFromTag(uint16_t amplitude, DecodeTag_t *ta
tag->bitCount++;
if (tag->bitCount == 8) {
tag->output[tag->len] = tag->shiftReg;
tag->output[tag->len] = (tag->shiftReg & 0xFF);
tag->len++;
if (tag->len > tag->max_len) {

1
armsrc/iso15693.h
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@ -39,7 +39,6 @@ void ReaderIso15693(uint32_t parameter); // Simulate an ISO15693 reader - greg
void SimTagIso15693(uint8_t *uid); // simulate an ISO15693 tag - greg
void BruteforceIso15693Afi(uint32_t speed); // find an AFI of a tag - atrox
void DirectTag15693Command(uint32_t datalen, uint32_t speed, uint32_t recv, uint8_t *data); // send arbitrary commands from CLI - atrox
void Iso15693InitReader(void);
void SniffIso15693(uint8_t jam_search_len, uint8_t *jam_search_string);