uint16_t num_paritybytes = (iLen-1)/8 + 1; // number of valid paritybytes in *parity
uint16_t duration = timestamp_end - timestamp_start;
uint16_t num_paritybytes = (iLen-1)/8 + 1; // number of valid paritybytes in *parity
uint16_t duration = timestamp_end - timestamp_start;
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
// So 32 should be enough!
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
// So 32 should be enough!
- uint8_t *receivedCmd = ((uint8_t *)BigBuf) + RECV_CMD_OFFSET;
- uint8_t *receivedCmdPar = ((uint8_t *)BigBuf) + RECV_CMD_PAR_OFFSET;
+ uint8_t *receivedCmd = BigBuf_get_addr() + RECV_CMD_OFFSET;
+ uint8_t *receivedCmdPar = BigBuf_get_addr() + RECV_CMD_PAR_OFFSET;
- uint8_t *receivedResponse = ((uint8_t *)BigBuf) + RECV_RESP_OFFSET;
- uint8_t *receivedResponsePar = ((uint8_t *)BigBuf) + RECV_RESP_PAR_OFFSET;
+ uint8_t *receivedResponse = BigBuf_get_addr() + RECV_RESP_OFFSET;
+ uint8_t *receivedResponsePar = BigBuf_get_addr() + RECV_RESP_PAR_OFFSET;
// As we receive stuff, we copy it from receivedCmd or receivedResponse
// into trace, along with its length and other annotations.
//uint8_t *trace = (uint8_t *)BigBuf;
// The DMA buffer, used to stream samples from the FPGA
// As we receive stuff, we copy it from receivedCmd or receivedResponse
// into trace, along with its length and other annotations.
//uint8_t *trace = (uint8_t *)BigBuf;
// The DMA buffer, used to stream samples from the FPGA
bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_StartTime, uint32_t reader_EndTime, uint8_t *reader_Parity,
uint8_t *tag_data, uint16_t tag_len, uint32_t tag_StartTime, uint32_t tag_EndTime, uint8_t *tag_Parity);
bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_StartTime, uint32_t reader_EndTime, uint8_t *reader_Parity,
uint8_t *tag_data, uint16_t tag_len, uint32_t tag_StartTime, uint32_t tag_EndTime, uint8_t *tag_Parity);
response_info->modulation = free_buffer_pointer;
// Determine the maximum size we can use from our buffer
response_info->modulation = free_buffer_pointer;
// Determine the maximum size we can use from our buffer
// Forward the prepare tag modulation function to the inner function
if (prepare_tag_modulation(response_info,max_buffer_size)) {
// Forward the prepare tag modulation function to the inner function
if (prepare_tag_modulation(response_info,max_buffer_size)) {
response2[4] = response2[0] ^ response2[1] ^ response2[2] ^ response2[3];
// Prepare the mandatory SAK (for 4 and 7 byte UID)
response2[4] = response2[0] ^ response2[1] ^ response2[2] ^ response2[3];
// Prepare the mandatory SAK (for 4 and 7 byte UID)
response3[0] = sak;
ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
// Prepare the optional second SAK (for 7 byte UID), drop the cascade bit
response3[0] = sak;
ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
// Prepare the optional second SAK (for 7 byte UID), drop the cascade bit
response3a[0] = sak & 0xFB;
ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
response3a[0] = sak & 0xFB;
ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
- uint8_t *receivedCmd = ((uint8_t *)BigBuf) + RECV_CMD_OFFSET;
- uint8_t *receivedCmdPar = ((uint8_t *)BigBuf) + RECV_CMD_PAR_OFFSET;
+ uint8_t *receivedCmd = BigBuf_get_addr() + RECV_CMD_OFFSET;
+ uint8_t *receivedCmdPar = BigBuf_get_addr() + RECV_CMD_PAR_OFFSET;
uint8_t sel_all[] = { 0x93,0x20 };
uint8_t sel_uid[] = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
uint8_t rats[] = { 0xE0,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0
uint8_t sel_all[] = { 0x93,0x20 };
uint8_t sel_uid[] = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
uint8_t rats[] = { 0xE0,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0
- uint8_t *resp = ((uint8_t *)BigBuf) + RECV_RESP_OFFSET;
- uint8_t *resp_par = ((uint8_t *)BigBuf) + RECV_RESP_PAR_OFFSET;
+ uint8_t *resp = BigBuf_get_addr() + RECV_RESP_OFFSET;
+ uint8_t *resp_par = BigBuf_get_addr() + RECV_RESP_PAR_OFFSET;
Dbprintf("Multiple tags detected. Collision after Bit %d", Demod.collisionPos);
for (uint16_t i = collision_answer_offset; i < Demod.collisionPos; i++, uid_resp_bits++) { // add valid UID bits before collision point
uint16_t UIDbit = (resp[i/8] >> (i % 8)) & 0x01;
Dbprintf("Multiple tags detected. Collision after Bit %d", Demod.collisionPos);
for (uint16_t i = collision_answer_offset; i < Demod.collisionPos; i++, uid_resp_bits++) { // add valid UID bits before collision point
uint16_t UIDbit = (resp[i/8] >> (i % 8)) & 0x01;
if ((sak & 0x04) /* && uid_resp[0] == 0x88 */) {
// Remove first byte, 0x88 is not an UID byte, it CT, see page 3 of:
// http://www.nxp.com/documents/application_note/AN10927.pdf
if ((sak & 0x04) /* && uid_resp[0] == 0x88 */) {
// Remove first byte, 0x88 is not an UID byte, it CT, see page 3 of:
// http://www.nxp.com/documents/application_note/AN10927.pdf
uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
static uint8_t mf_nr_ar3;
uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
static uint8_t mf_nr_ar3;
- uint8_t* receivedAnswer = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
- uint8_t* receivedAnswerPar = (((uint8_t *)BigBuf) + RECV_RESP_PAR_OFFSET);
+ uint8_t* receivedAnswer = BigBuf_get_addr() + RECV_RESP_OFFSET;
+ uint8_t* receivedAnswerPar = BigBuf_get_addr() + RECV_RESP_PAR_OFFSET;
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
// So 32 should be enough!
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.
// So 32 should be enough!
- uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
- uint8_t *receivedCmdPar = ((uint8_t *)BigBuf) + RECV_CMD_PAR_OFFSET;
+ uint8_t *receivedCmd = BigBuf_get_addr() + RECV_CMD_OFFSET;
+ uint8_t *receivedCmdPar = BigBuf_get_addr() + RECV_CMD_PAR_OFFSET;
- uint8_t *receivedResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
- uint8_t *receivedResponsePar = ((uint8_t *)BigBuf) + RECV_RESP_PAR_OFFSET;
+ uint8_t *receivedResponse = BigBuf_get_addr() + RECV_RESP_OFFSET;
+ uint8_t *receivedResponsePar = BigBuf_get_addr() + RECV_RESP_PAR_OFFSET;
// As we receive stuff, we copy it from receivedCmd or receivedResponse
// into trace, along with its length and other annotations.
//uint8_t *trace = (uint8_t *)BigBuf;
// The DMA buffer, used to stream samples from the FPGA
// As we receive stuff, we copy it from receivedCmd or receivedResponse
// into trace, along with its length and other annotations.
//uint8_t *trace = (uint8_t *)BigBuf;
// The DMA buffer, used to stream samples from the FPGA