// 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 *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ #define ICLASS_BUFFER_SIZE 32
+ uint8_t readerToTagCmd[ICLASS_BUFFER_SIZE];
// The response (tag -> reader) that we're receiving.
- uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+ uint8_t tagToReaderResponse[ICLASS_BUFFER_SIZE];
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
- // reset traceLen to 0
+ // free all BigBuf memory
+ BigBuf_free();
+ // The DMA buffer, used to stream samples from the FPGA
+ uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
+
+ // reset traceLen to 0
iso14a_set_tracing(TRUE);
iso14a_clear_trace();
iso14a_set_trigger(FALSE);
- // The DMA buffer, used to stream samples from the FPGA
- int8_t *dmaBuf = ((int8_t *)BigBuf) + DMA_BUFFER_OFFSET;
- int lastRxCounter;
- int8_t *upTo;
+ int lastRxCounter;
+ uint8_t *upTo;
int smpl;
int maxBehindBy = 0;
(DMA_BUFFER_SIZE-1);
if(behindBy > maxBehindBy) {
maxBehindBy = behindBy;
- if(behindBy > 400) {
+ if(behindBy > (9 * DMA_BUFFER_SIZE / 10)) {
Dbprintf("blew circular buffer! behindBy=0x%x", behindBy);
goto done;
}
int trace_data_size = 0;
//uint8_t sof = 0x0f;
+ // free eventually allocated BigBuf memory
+ BigBuf_free();
// Respond SOF -- takes 1 bytes
- uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
+ uint8_t *resp1 = BigBuf_malloc(2);
int resp1Len;
// Anticollision CSN (rotated CSN)
// 22: Takes 2 bytes for SOF/EOF and 10 * 2 = 20 bytes (2 bytes/byte)
- uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 2);
+ uint8_t *resp2 = BigBuf_malloc(28);
int resp2Len;
// CSN
// 22: Takes 2 bytes for SOF/EOF and 10 * 2 = 20 bytes (2 bytes/byte)
- uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 30);
+ uint8_t *resp3 = BigBuf_malloc(30);
int resp3Len;
// e-Purse
- // 18: Takes 2 bytes for SOF/EOF and 8 * 2 = 16 bytes (2 bytes/byte)
- uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 60);
+ // 18: Takes 2 bytes for SOF/EOF and 8 * 2 = 16 bytes (2 bytes/bit)
+ uint8_t *resp4 = BigBuf_malloc(20);
int resp4Len;
- // + 1720..
- uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+ uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
int len;
static uint8_t identify[] = { 0x0c };
static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static uint8_t readcheck_cc[]= { 0x88, 0x02 };
- uint8_t *resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+ uint8_t resp[ICLASS_BUFFER_SIZE];
uint8_t read_status = 0;
while(!BUTTON_PRESS())
{
- if(traceLen > TRACE_SIZE) {
+ if(traceLen > BigBuf_max_traceLen()) {
DbpString("Trace full");
break;
}
int keyaccess;
} memory;
- uint8_t* resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+ uint8_t resp[ICLASS_BUFFER_SIZE];
setupIclassReader();
WDT_HIT();
- if(traceLen > TRACE_SIZE) {
+ if(traceLen > BigBuf_max_traceLen()) {
DbpString("Trace full");
break;
}