Hi Robin, it works using the wrapper library provided with the SDK: err=calllib('ps5000wrap','RunBlock',adata.unithandle.value,0,adata.numsamp,adtimebase,1,0); while calllib('ps5000wrap','IsReady',adata.unithandle.value)==0 Using RunBlock and IsReady from ps5000wrap.dll works as expected. Using ps50...

When you call ps4000RunBlock, you can pass NULL instead of a function pointer. Robin Hi Robin, just tried: calllib('PS5000','ps5000RunBlock',adata.unithandle.value,0,adata.numsamp,adtimebase,1,null,0,0,null); instantly crashes Matlab. Maybe the driver still writes to a null pointer? Note I am using...