diff --git a/linux/ipcore/PdecConfig.cpp b/linux/ipcore/PdecConfig.cpp
index 19423862..b5e71a28 100644
--- a/linux/ipcore/PdecConfig.cpp
+++ b/linux/ipcore/PdecConfig.cpp
@@ -190,6 +190,7 @@ ReturnValue_t PdecConfig::createFirstWord(uint32_t* word) {
     return result;
   }
   *word |= static_cast<uint32_t>(positiveWindow);
+  printf("Word 1: 0x%08x\n", *word);
   return returnvalue::OK;
 }
 
@@ -205,6 +206,7 @@ ReturnValue_t PdecConfig::createSecondWord(uint32_t* word) {
   *word |= (static_cast<uint32_t>(negativeWindow) << 24);
   *word |= (HIGH_AU_MAP_ID << 16);
   *word |= (ENABLE_DERANDOMIZER << 8);
+  printf("Word 2: 0x%08x\n", *word);
   return returnvalue::OK;
 }
 
diff --git a/linux/ipcore/PdecHandler.cpp b/linux/ipcore/PdecHandler.cpp
index c7266710..34f045a5 100644
--- a/linux/ipcore/PdecHandler.cpp
+++ b/linux/ipcore/PdecHandler.cpp
@@ -53,23 +53,30 @@ ReturnValue_t PdecHandler::initialize() {
     return ObjectManagerIF::CHILD_INIT_FAILED;
   }
 
-  ReturnValue_t result = returnvalue::OK;
-
   UioMapper regMapper(uioNames.registers);
-  result = regMapper.getMappedAdress(&registerBaseAddress, UioMapper::Permissions::READ_WRITE);
+  ReturnValue_t result =
+      regMapper.getMappedAdress(&registerBaseAddress, UioMapper::Permissions::READ_WRITE);
   if (result != returnvalue::OK) {
     return ObjectManagerIF::CHILD_INIT_FAILED;
   }
-  UioMapper configMemMapper(uioNames.configMemory);
-  result = configMemMapper.getMappedAdress(&memoryBaseAddress, UioMapper::Permissions::READ_WRITE);
-  if (result != returnvalue::OK) {
+
+  int fd = 0;
+  if ((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) {
+    sif::error << "PdecHandler::initialize: Opening /dev/mem failed" << std::endl;
+    return ObjectManagerIF::CHILD_INIT_FAILED;
+  };
+  memoryBaseAddress = static_cast<uint32_t*>(
+      mmap(0, PDEC_CFG_MEM_SIZE, static_cast<int>(UioMapper::Permissions::READ_WRITE), MAP_SHARED,
+           fd, PDEC_RAM_PHY_ADDR));
+  if (memoryBaseAddress == nullptr) {
     return ObjectManagerIF::CHILD_INIT_FAILED;
-  } else {
-    pdecConfig.setMemoryBaseAddress(memoryBaseAddress);
   }
-  UioMapper ramMapper(uioNames.ramMemory);
-  result = ramMapper.getMappedAdress(&ramBaseAddress, UioMapper::Permissions::READ_WRITE);
-  if (result != returnvalue::OK) {
+  pdecConfig.setMemoryBaseAddress(memoryBaseAddress);
+
+  ramBaseAddress = static_cast<uint32_t*>(mmap(0, PDEC_RAM_SIZE,
+                                               static_cast<int>(UioMapper::Permissions::READ_WRITE),
+                                               MAP_SHARED, fd, PDEC_RAM_PHY_ADDR));
+  if (ramBaseAddress == nullptr) {
     return ObjectManagerIF::CHILD_INIT_FAILED;
   }
 
diff --git a/linux/ipcore/PdecHandler.h b/linux/ipcore/PdecHandler.h
index 11ae4de3..19968da6 100644
--- a/linux/ipcore/PdecHandler.h
+++ b/linux/ipcore/PdecHandler.h
@@ -51,6 +51,10 @@ class PdecHandler : public SystemObject,
                     public ReceivesParameterMessagesIF {
  public:
   static constexpr dur_millis_t IRQ_TIMEOUT_MS = 500;
+  static constexpr uint32_t PDEC_CFG_MEM_SIZE = 0x1000;
+  static constexpr uint32_t PDEC_CFG_MEM_PHY_ADDR = 0x24000000;
+  static constexpr uint32_t PDEC_RAM_SIZE = 0x10000;
+  static constexpr uint32_t PDEC_RAM_PHY_ADDR = 0x26000000;
 
   enum class Modes { POLLED, IRQ };