"hf mf sniff" low level logics works.

[proxmark3-svn] / armsrc / fpgaloader.c

diff --git a/armsrc/fpgaloader.c b/armsrc/fpgaloader.c
index caf87ba987d12788ab39aa7ac04a725a3480a2a8..c199b9a86f4b84f24c8e0b39e90b84cffb9ec9d8 100644 (file)
--- a/armsrc/fpgaloader.c
+++ b/armsrc/fpgaloader.c
@@ -138,11 +138,16 @@ void FpgaSetupSsc(void)
 //-----------------------------------------------------------------------------
 void FpgaSetupSscDma(uint8_t *buf, int len)
 {
+       AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
+       
        AT91C_BASE_PDC_SSC->PDC_RPR = (uint32_t) buf;
        AT91C_BASE_PDC_SSC->PDC_RCR = len;
        AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) buf;
        AT91C_BASE_PDC_SSC->PDC_RNCR = len;
-       AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN;
+       
+       if (buf != NULL) {
+               AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN;
+       }
 }
 
 static void DownloadFPGA_byte(unsigned char w)