CHG: Added calling clear bigbuff to zero out it also, instead of just "free" it.

[proxmark3-svn] / armsrc / iso14443a.c

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index dfd167f071bbba2ad5b4f662fdb284174214fbf3..be16447cf8b4096013dca1d809b234c75a6920c7 100644 (file)
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -546,7 +546,7 @@ void RAMFUNC SniffIso14443a(uint8_t param) {
        
        // Allocate memory from BigBuf for some buffers
        // free all previous allocations first
-       BigBuf_free();
+       BigBuf_free(); BigBuf_Clear_ext(false);
        
        // init trace buffer
        clear_trace();
@@ -2303,6 +2303,9 @@ void ReaderMifare(bool first_try, uint8_t block )
        #define MAX_SYNC_TRIES          32
        #define MAX_STRATEGY            3
 
+       // free eventually allocated BigBuf memory
+       BigBuf_free(); BigBuf_Clear_ext(false);
+       
        clear_trace();
        set_tracing(TRUE);
        
@@ -2310,9 +2313,6 @@ void ReaderMifare(bool first_try, uint8_t block )
        
        if (first_try)
                iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
-       
-       // free eventually allocated BigBuf memory. We want all for tracing.
-       BigBuf_free();
 
        if (first_try) { 
                sync_time = GetCountSspClk() & 0xfffffff8;
@@ -3068,6 +3068,9 @@ void RAMFUNC SniffMifare(uint8_t param) {
        // bit 1 - trigger from first reader 7-bit request
        LEDsoff();
 
+       // free eventually allocated BigBuf memory
+       BigBuf_free(); BigBuf_Clear_ext(false);
+       
        // init trace buffer
        clear_trace();
        set_tracing(TRUE);
@@ -3084,9 +3087,6 @@ void RAMFUNC SniffMifare(uint8_t param) {
 
        iso14443a_setup(FPGA_HF_ISO14443A_SNIFFER);
 
-       // free eventually allocated BigBuf memory
-       BigBuf_free();
-       
        // allocate the DMA buffer, used to stream samples from the FPGA
        uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
        uint8_t *data = dmaBuf;