increased BUF_LEN, so demo works better with ni boards

diff --git a/demo/ao_waveform.c b/demo/ao_waveform.c
index 364d7622ceeb6bad5772f65fdd39d03f1bbfb0cb..5f3c40a9c315a5c0c7d8f8b809384dd00d42ba14 100644 (file)
--- a/demo/ao_waveform.c
+++ b/demo/ao_waveform.c
@@ -67,7 +67,7 @@ double offset                 = 2048;
 /* This is the size of chunks we deal with when creating and
    outputting data.  This *could* be 1, but that would be
    inefficient */
-#define BUF_LEN                4096
+#define BUF_LEN                8192    
 
 int subdevice;
 int external_trigger_number = 0;