diff --git a/linux/boardtest/SpiTestClass.cpp b/linux/boardtest/SpiTestClass.cpp
index 537baffb..3804bff9 100644
--- a/linux/boardtest/SpiTestClass.cpp
+++ b/linux/boardtest/SpiTestClass.cpp
@@ -26,7 +26,7 @@ SpiTestClass::SpiTestClass(object_id_t objectId, GpioIF *gpioIF)
   }
   testMode = TestModes::SUS_0;
   spiTransferStruct[0].rx_buf = reinterpret_cast<__u64>(recvBuffer.data());
-  spiTransferStruct[0].tx_buf = reinterpret_cast<__u64>(sendBuffer.data());
+  setSendBuffer();
 }
 
 ReturnValue_t SpiTestClass::performOneShotAction() {
@@ -281,11 +281,14 @@ void SpiTestClass::performL3gTest(uint8_t l3gId) {
 
 void SpiTestClass::performMax1227Test() {
   using namespace max1227;
-  bool testRadSensorExtConv = false;
-  bool testRadSensorIntConv = false;
-  bool susExtConversion = false;
-  bool susIntConversion = false;
-  bool plPcduAdcExtConv = false;
+  testRadSensorExtConvWithDelay = false;
+  testRadSensorIntConv = false;
+
+  susExtConversion = false;
+  susIntConversion = false;
+
+  plPcduAdcExtConv = false;
+  plPcduAdcIntConv = true;
 #ifdef XIPHOS_Q7S
   std::string deviceName = q7s::SPI_DEFAULT_DEV;
 #elif defined(RASPBERRY_PI)
@@ -302,36 +305,60 @@ void SpiTestClass::performMax1227Test() {
   spi::SpiModes spiMode = spi::SpiModes::MODE_3;
   setSpiSpeedAndMode(fd, spiMode, spiSpeed);
 
-  if (testRadSensorExtConv) {
-    sendBuffer[0] = max1227::buildResetByte(true);
-    sendBuffer[1] = max1227::buildSetupByte(ClkSel::EXT_CONV_EXT_TIMED, RefSel::INT_REF_NO_WAKEUP,
-                                            DiffSel::NONE_0);
-    spiTransferStruct[0].len = 2;
-    transfer(fd, gpioIds::CS_RAD_SENSOR);
+  max1227RadSensorTest(fd);
+  max1227SusTest(fd);
+  max1227PlPcduTest(fd);
+}
 
+void SpiTestClass::max1227RadSensorTest(int fd) {
+  using namespace max1227;
+  if (testRadSensorExtConvWithDelay) {
+    sendBuffer[0] = max1227::buildResetByte(true);
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::CS_RAD_SENSOR);
+    usleep(200);
+    sendBuffer[0] = max1227::buildSetupByte(ClkSel::EXT_CONV_EXT_TIMED, RefSel::INT_REF_WITH_WAKEUP,
+                                            DiffSel::NONE_0);
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::CS_RAD_SENSOR);
     max1227::prepareExternallyClockedRead0ToN(sendBuffer.data(), 7, spiTransferStruct[0].len);
+    size_t tmpLen = spiTransferStruct[0].len;
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::CS_RAD_SENSOR);
+    std::memcpy(sendBuffer.data(), sendBuffer.data() + 1, tmpLen - 1);
+    spiTransferStruct[0].len = tmpLen - 1;
+    usleep(65);
     transfer(fd, gpioIds::CS_RAD_SENSOR);
     arrayprinter::print(recvBuffer.data(), 13, OutputType::HEX);
     uint16_t adcRaw[8] = {};
-    adcRaw[0] = (recvBuffer[1] << 8) | recvBuffer[2];
-    adcRaw[1] = (recvBuffer[3] << 8) | recvBuffer[4];
-    adcRaw[2] = (recvBuffer[5] << 8) | recvBuffer[6];
-    adcRaw[3] = (recvBuffer[7] << 8) | recvBuffer[8];
-    adcRaw[4] = (recvBuffer[9] << 8) | recvBuffer[10];
-    adcRaw[5] = (recvBuffer[11] << 8) | recvBuffer[12];
-    adcRaw[6] = (recvBuffer[13] << 8) | recvBuffer[14];
-    adcRaw[7] = (recvBuffer[15] << 8) | recvBuffer[16];
+    adcRaw[0] = (recvBuffer[0] << 8) | recvBuffer[1];
+    adcRaw[1] = (recvBuffer[2] << 8) | recvBuffer[3];
+    adcRaw[2] = (recvBuffer[4] << 8) | recvBuffer[5];
+    adcRaw[3] = (recvBuffer[6] << 8) | recvBuffer[7];
+    adcRaw[4] = (recvBuffer[8] << 8) | recvBuffer[9];
+    adcRaw[5] = (recvBuffer[10] << 8) | recvBuffer[11];
+    adcRaw[6] = (recvBuffer[12] << 8) | recvBuffer[13];
+    adcRaw[7] = (recvBuffer[14] << 8) | recvBuffer[15];
     arrayprinter::print(recvBuffer.data(), 17, OutputType::HEX);
     for (int idx = 0; idx < 8; idx++) {
       sif::info << "ADC raw " << idx << ": " << adcRaw[idx] << std::endl;
     }
+    max1227::prepareExternallyClockedTemperatureRead(sendBuffer.data(), spiTransferStruct[0].len);
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::CS_RAD_SENSOR);
+    usleep(65);
+    spiTransferStruct[0].len = 24;
+    std::memcpy(sendBuffer.data(), sendBuffer.data() + 1, 24);
+    transfer(fd, gpioIds::CS_RAD_SENSOR);
+    int16_t tempRaw = ((recvBuffer[22] & 0x0f) << 8) | recvBuffer[23];
+    float temp = max1227::getTemperature(tempRaw);
+    sif::info << "Temperature: " << temp << std::endl;
   }
   if (testRadSensorIntConv) {
     sendBuffer[0] = max1227::buildResetByte(false);
     spiTransferStruct[0].len = 1;
     transfer(fd, gpioIds::CS_RAD_SENSOR);
-    usleep(65);
-
+    usleep(5);
     // Now use internal conversion
     sendBuffer[0] = max1227::buildSetupByte(ClkSel::INT_CONV_INT_TIMED_CNVST_AS_AIN,
                                             RefSel::INT_REF_NO_WAKEUP, DiffSel::NONE_0);
@@ -345,13 +372,13 @@ void SpiTestClass::performMax1227Test() {
     usleep(65);
     spiTransferStruct[0].len = 18;
     // Shift out zeros
-    spiTransferStruct[0].tx_buf = 0;
+    shiftOutZeros();
     transfer(fd, gpioIds::CS_RAD_SENSOR);
+    setSendBuffer();
 
     arrayprinter::print(recvBuffer.data(), 14);
     uint16_t adcRaw[8] = {};
     int16_t tempRaw = ((recvBuffer[0] & 0x0f) << 8) | recvBuffer[1];
-
     sif::info << "Temperature: " << tempRaw * 0.125 << " C" << std::endl;
     adcRaw[0] = (recvBuffer[2] << 8) | recvBuffer[3];
     adcRaw[1] = (recvBuffer[4] << 8) | recvBuffer[5];
@@ -365,6 +392,10 @@ void SpiTestClass::performMax1227Test() {
       sif::info << "ADC raw " << idx << ": " << adcRaw[idx] << std::endl;
     }
   }
+}
+
+void SpiTestClass::max1227SusTest(int fd) {
+  using namespace max1227;
   if (susExtConversion) {
     sendBuffer[0] = max1227::buildResetByte(false);
     spiTransferStruct[0].len = 1;
@@ -408,8 +439,9 @@ void SpiTestClass::performMax1227Test() {
     usleep(65);
     spiTransferStruct[0].len = 14;
     // Shift out zeros
-    spiTransferStruct[0].tx_buf = 0;
+    shiftOutZeros();
     transfer(fd, gpio::NO_GPIO);
+    setSendBuffer();
     arrayprinter::print(recvBuffer.data(), 14);
     float temp = static_cast<int16_t>(((recvBuffer[0] & 0x0f) << 8) | recvBuffer[1]) * 0.125;
     sif::info << "Temperature: " << temp << " C" << std::endl;
@@ -424,11 +456,22 @@ void SpiTestClass::performMax1227Test() {
       sif::info << "ADC raw " << idx << ": " << adcRaw[idx] << std::endl;
     }
   }
+}
+
+void SpiTestClass::max1227PlPcduTest(int fd) {
+  using namespace max1227;
   if (plPcduAdcExtConv) {
     // This enables the ADC
-    gpioIF->pullHigh(gpioIds::PLPCDU_ENB_VBAT0);
-    gpioIF->pullHigh(gpioIds::PLPCDU_ENB_VBAT1);
-    sendBuffer[0] = max1227::buildResetByte(true);
+    ReturnValue_t result = gpioIF->pullHigh(gpioIds::PLPCDU_ENB_VBAT0);
+    if (result != HasReturnvaluesIF::RETURN_OK) {
+      return;
+    }
+    result = gpioIF->pullHigh(gpioIds::PLPCDU_ENB_VBAT1);
+    if (result != HasReturnvaluesIF::RETURN_OK) {
+      return;
+    }
+    usleep(1000);
+    sendBuffer[0] = max1227::buildResetByte(false);
     spiTransferStruct[0].len = 1;
     transfer(fd, gpioIds::PLPCDU_ADC_CS);
     sendBuffer[0] = max1227::buildSetupByte(ClkSel::EXT_CONV_EXT_TIMED, RefSel::INT_REF_NO_WAKEUP,
@@ -439,11 +482,56 @@ void SpiTestClass::performMax1227Test() {
     max1227::prepareExternallyClockedRead0ToN(sendBuffer.data(), n, spiTransferStruct[0].len);
     transfer(fd, gpioIds::PLPCDU_ADC_CS);
     uint16_t adcRaw[n + 1] = {};
-    for(uint8_t idx = 0; idx < n + 1; idx++) {
+    for (uint8_t idx = 0; idx < n + 1; idx++) {
       adcRaw[idx] = (recvBuffer[idx * 2 + 1] << 8) | recvBuffer[idx * 2 + 2];
     }
     arrayprinter::print(recvBuffer.data(), spiTransferStruct[0].len, OutputType::HEX);
+    sif::info << "PL PCDU ADC values:" << std::endl;
     for (int idx = 0; idx < n + 1; idx++) {
+      sif::info << "Raw Value " << idx << ": " << adcRaw[idx] << std::endl;
+    }
+    max1227::prepareExternallyClockedTemperatureRead(sendBuffer.data(), spiTransferStruct[0].len);
+    transfer(fd, gpioIds::PLPCDU_ADC_CS);
+    int16_t tempRaw = ((recvBuffer[23] & 0x0f) << 8) | recvBuffer[24];
+    float temp = max1227::getTemperature(tempRaw);
+    sif::info << "Temperature: " << temp << std::endl;
+  }
+  if (plPcduAdcIntConv) {
+    // This enables the ADC
+    ReturnValue_t result = gpioIF->pullHigh(gpioIds::PLPCDU_ENB_VBAT0);
+    if (result != HasReturnvaluesIF::RETURN_OK) {
+      return;
+    }
+    result = gpioIF->pullHigh(gpioIds::PLPCDU_ENB_VBAT1);
+    if (result != HasReturnvaluesIF::RETURN_OK) {
+      return;
+    }
+    usleep(1000);
+    sendBuffer[0] = max1227::buildResetByte(false);
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::PLPCDU_ADC_CS);
+    // Now use internal conversion
+    sendBuffer[0] = max1227::buildSetupByte(ClkSel::INT_CONV_INT_TIMED_CNVST_AS_AIN,
+                                            RefSel::INT_REF_NO_WAKEUP, DiffSel::NONE_0);
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::PLPCDU_ADC_CS);
+    usleep(10);
+    uint8_t n = 11;
+    sendBuffer[0] = buildConvByte(ScanModes::CHANNELS_0_TO_N, n, true);
+    spiTransferStruct[0].len = 1;
+    transfer(fd, gpioIds::PLPCDU_ADC_CS);
+
+    usleep(65);
+    spiTransferStruct[0].len = 26;
+    // Shift out zeros
+    shiftOutZeros();
+    transfer(fd, gpioIds::PLPCDU_ADC_CS);
+    setSendBuffer();
+    uint16_t adcRaw[n + 1] = {};
+    int16_t tempRaw = ((recvBuffer[0] & 0x0f) << 8) | recvBuffer[1];
+    sif::info << "Temperature: " << tempRaw * 0.125 << " C" << std::endl;
+    for (int idx = 0; idx < n + 1; idx++) {
+      adcRaw[idx] = (recvBuffer[idx * 2 + 2] << 8) | recvBuffer[idx * 2 + 3];
       sif::info << "ADC raw " << idx << ": " << adcRaw[idx] << std::endl;
     }
   }
@@ -624,6 +712,12 @@ void SpiTestClass::readMultipleStmRegisters(int fd, gpioId_t chipSelect, uint8_t
   readMultipleRegisters(fd, chipSelect, reg, reply, len);
 }
 
+void SpiTestClass::shiftOutZeros() { spiTransferStruct[0].tx_buf = 0; }
+
+void SpiTestClass::setSendBuffer() {
+  spiTransferStruct[0].tx_buf = reinterpret_cast<__u64>(sendBuffer.data());
+}
+
 void SpiTestClass::readMultipleRegisters(int fd, gpioId_t chipSelect, uint8_t reg, uint8_t *reply,
                                          size_t len) {
   if (reply == nullptr) {
@@ -680,8 +774,8 @@ uint8_t SpiTestClass::readRegister(int fd, gpioId_t chipSelect, uint8_t reg) {
 ReturnValue_t SpiTestClass::transfer(int fd, gpioId_t chipSelect = gpio::NO_GPIO) {
   int retval = 0;
   ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
-  if(chipSelect != gpio::NO_GPIO) {
-    result = gpioIF->pullLow(gpioIds::CS_RAD_SENSOR);
+  if (chipSelect != gpio::NO_GPIO) {
+    result = gpioIF->pullLow(chipSelect);
     if (result != HasReturnvaluesIF::RETURN_OK) {
       return result;
     }
@@ -693,8 +787,8 @@ ReturnValue_t SpiTestClass::transfer(int fd, gpioId_t chipSelect = gpio::NO_GPIO
     return HasReturnvaluesIF::RETURN_FAILED;
   }
 
-  if(chipSelect != gpio::NO_GPIO) {
-    result = gpioIF->pullHigh(gpioIds::CS_RAD_SENSOR);
+  if (chipSelect != gpio::NO_GPIO) {
+    result = gpioIF->pullHigh(chipSelect);
     if (result != HasReturnvaluesIF::RETURN_OK) {
       return result;
     }
diff --git a/linux/boardtest/SpiTestClass.h b/linux/boardtest/SpiTestClass.h
index 3c9c159e..adf94739 100644
--- a/linux/boardtest/SpiTestClass.h
+++ b/linux/boardtest/SpiTestClass.h
@@ -51,6 +51,15 @@ class SpiTestClass : public TestTask {
   uint8_t gyro2AdisChipSelect = gpio::GYRO_2_BCM_PIN;
   uint8_t gyro3L3gd20ChipSelect = gpio::GYRO_3_BCM_PIN;
 #else
+  bool testRadSensorExtConvWithDelay = false;
+  bool testRadSensorIntConv = false;
+
+  bool susExtConversion = false;
+  bool susIntConversion = false;
+
+  bool plPcduAdcExtConv = false;
+  bool plPcduAdcIntConv = false;
+
   uint8_t mgm0Lis3mdlChipSelect = 0;
   uint8_t mgm1Rm3100ChipSelect = 0;
   uint8_t gyro0AdisResetLine = 0;
@@ -65,6 +74,13 @@ class SpiTestClass : public TestTask {
   static constexpr uint8_t RM3100_READ_MASK = STM_READ_MASK;
   static constexpr uint8_t STM_AUTO_INCR_MASK = 0b0100'0000;
 
+  void shiftOutZeros();
+  void setSendBuffer();
+
+  void max1227RadSensorTest(int fd);
+  void max1227SusTest(int fd);
+  void max1227PlPcduTest(int fd);
+
   void setSpiSpeedAndMode(int spiFd, spi::SpiModes mode, uint32_t speed);
 
   void writeStmRegister(int fd, gpioId_t chipSelect, uint8_t reg, uint8_t value,