diff --git a/fpga b/fpga
index ce8612379..1cac3fafd 160000
--- a/fpga
+++ b/fpga
@@ -1 +1 @@
-Subproject commit ce8612379de62f50a52e172fe8eaee924d5d8822
+Subproject commit 1cac3fafde6ef3098a145f9d5d936a2dc6b7d7c0
diff --git a/include/villas/nodes/fpga.hpp b/include/villas/nodes/fpga.hpp
index e03f36e20..b76aa784e 100644
--- a/include/villas/nodes/fpga.hpp
+++ b/include/villas/nodes/fpga.hpp
@@ -14,6 +14,7 @@
 #include <villas/timing.hpp>
 
 #include <villas/fpga/card.hpp>
+#include <villas/fpga/pcie_card.hpp>
 #include <villas/fpga/node.hpp>
 #include <villas/fpga/ips/dma.hpp>
 
diff --git a/lib/nodes/fpga.cpp b/lib/nodes/fpga.cpp
index 1462e7468..af884406e 100644
--- a/lib/nodes/fpga.cpp
+++ b/lib/nodes/fpga.cpp
@@ -149,14 +149,13 @@ int FpgaNode::prepare()
 
 	auto &alloc = HostDmaRam::getAllocator();
 
-	auto memRx  = alloc.allocate<uint32_t>(0x100 / sizeof(int32_t));
-	auto memTx = alloc.allocate<uint32_t>(0x100 / sizeof(int32_t));
+	const std::shared_ptr<villas::MemoryBlock> blockRx = alloc.allocateBlock(0x100 * sizeof(float));
+	const std::shared_ptr<villas::MemoryBlock> blockTx = alloc.allocateBlock(0x100 * sizeof(float));
+	villas::MemoryAccessor<float> memRx = *blockRx;
+	villas::MemoryAccessor<float> memTx = *blockTx;
 
-	blockRx = std::unique_ptr<const MemoryBlock>(&memRx.getMemoryBlock());
-	blockTx = std::unique_ptr<const MemoryBlock>(&memTx.getMemoryBlock());
-
-	dma->makeAccesibleFromVA(*blockRx);
-	dma->makeAccesibleFromVA(*blockTx);
+	dma->makeAccesibleFromVA(blockRx);
+	dma->makeAccesibleFromVA(blockTx);
 
 	// Show some debugging infos
 	auto &mm = MemoryManager::get();
@@ -176,7 +175,7 @@ int FpgaNode::_read(Sample *smps[], unsigned cnt)
 	assert(cnt == 1);
 
 	dma->read(*blockRx, blockRx->getSize()); // TODO: calc size
-	const size_t bytesRead = dma->readComplete();
+	const size_t bytesRead = dma->readComplete().bytes;
 	read = bytesRead / sizeof(int32_t);
 
 	auto mem = MemoryAccessor<uint32_t>(*blockRx);