v3.0.14 - add getUniqueChipId and getUniqueChipIdStr

examples/Basics/Example8_GetModuleInfo/Example8_GetModuleInfo.ino

@@ -69,9 +69,41 @@ void setup()
   }
   else
     Serial.println(F("Error: could not read module info!"));
+
+  // Use the helper method to read the unique chip ID as a string
+  // Returns "000000000000" if the read fails
+  Serial.print(F("Unique chip ID: 0x"));
+  Serial.println(myGNSS.getUniqueChipIdStr());
+
+  // Or we can read the ID and use the helper method to convert it to string
+  UBX_SEC_UNIQID_data_t chipID;
+  if (myGNSS.getUniqueChipId(&chipID))
+  {
+    Serial.print(F("Unique chip ID: 0x"));
+    Serial.println(myGNSS.getUniqueChipIdStr(&chipID));
+  }
+  else
+    Serial.println(F("Error: could not read chip ID!"));
+
+  // Or we can read and print the unique chip ID manually
+  if (myGNSS.getUniqueChipId(&chipID))
+  {
+    Serial.print(F("Unique chip ID: 0x"));
+    // The ID is five bytes on the F9 and M9 (version 1) but six bytes on the M10 (version 2)
+    for (uint8_t i = 0; i < (chipID.version + 4); i++)
+    {
+      if (chipID.uniqueId[i] < 0x10)
+        Serial.print(F("0"));
+      Serial.print(chipID.uniqueId[i], HEX);
+    }
+    Serial.println();
+  }
+  else
+    Serial.println(F("Error: could not read chip ID!"));
+
 }
 
 void loop()
 {
   //Do nothing
-}
+}

keywords.txt

@@ -64,6 +64,8 @@ UBX_TIM_TP_data_t	KEYWORD1
 
 UBX_MON_HW_data_t	KEYWORD1
 
+UBX_SEC_UNIQID_data_t	KEYWORD1
+
 UBX_ESF_ALG_data_t	KEYWORD1
 UBX_ESF_INS_data_t	KEYWORD1
 UBX_ESF_MEAS_data_t	KEYWORD1
@@ -243,6 +245,9 @@ setAopCfg	KEYWORD2
 setDynamicSPARTNKey	KEYWORD2
 setDynamicSPARTNKeys	KEYWORD2
 
+getUniqueChipId	KEYWORD2
+getUniqueChipIdStr	KEYWORD2
+
 getVal8	KEYWORD2
 getVal16	KEYWORD2
 getVal32	KEYWORD2

library.properties

@@ -1,5 +1,5 @@
 name=SparkFun u-blox GNSS v3
-version=3.0.13
+version=3.0.14
 author=SparkFun Electronics <[email protected]>
 maintainer=SparkFun Electronics <sparkfun.com>
 sentence=Library for I2C, Serial and SPI Communication with u-blox GNSS modules<br/><br/>

src/u-blox_GNSS.cpp

@@ -8931,6 +8931,72 @@ bool DevUBLOXGNSS::setDynamicSPARTNKeys(uint8_t keyLengthBytes1, uint16_t validF
   return (sendCommand(&packetCfg, 0) == SFE_UBLOX_STATUS_SUCCESS); // UBX-RXM-SPARTNKEY is silent. It does not ACK (or NACK)
 }
 
+// Get the unique chip ID using UBX-SEC-UNIQID
+// The ID is five bytes on the F9 and M9 (version 1) but six bytes on the M10 (version 2)
+bool DevUBLOXGNSS::getUniqueChipId(UBX_SEC_UNIQID_data_t *data, uint16_t maxWait)
+{
+  if (data == nullptr) // Check if the user forgot to include the data pointer
+    return (false);    // Bail
+
+  packetCfg.cls = UBX_CLASS_SEC;
+  packetCfg.id = UBX_SEC_UNIQID;
+  packetCfg.len = 0;
+  packetCfg.startingSpot = 0;
+
+  if (sendCommand(&packetCfg, maxWait) != SFE_UBLOX_STATUS_DATA_RECEIVED) // We are expecting data and an ACK
+    return (false);
+
+  // Extract the data
+  data->version = extractByte(&packetCfg, 0);
+  for (uint8_t i = 0; i < 5; i++)
+    data->uniqueId[i] = extractByte(&packetCfg, i + 4);
+
+  // The ID is five bytes on the F9 and M9 (version 1) but six bytes on the M10 (version 2)
+  if ((data->version == 2) && (packetCfg.len == UBX_SEC_UNIQID_LEN_VERSION2))
+    data->uniqueId[5] = extractByte(&packetCfg, 9);
+  else
+    data->uniqueId[5] = 0;
+
+  return (true);
+}
+// Get the unique chip ID as text
+const char *DevUBLOXGNSS::getUniqueChipIdStr(UBX_SEC_UNIQID_data_t *data, uint16_t maxWait)
+{
+  static char uniqueId[13] = {'0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '\0'};
+  bool valid = true;
+  bool provided = (data != nullptr);
+
+  if (!provided)
+  {
+    data = new UBX_SEC_UNIQID_data_t;
+    valid = getUniqueChipId(data, maxWait);
+  }
+
+  if (valid)
+  {
+    for (uint8_t i = 0; (i < (data->version + 4)) && (i < 6); i++)
+    {
+      uint8_t nibble = data->uniqueId[i] >> 4;
+      if (nibble < 10)
+        uniqueId[(i * 2) + 0] = nibble + '0';
+      else
+        uniqueId[(i * 2) + 0] = nibble + 'A' - 10;
+      nibble = data->uniqueId[i] & 0x0F;
+      if (nibble < 10)
+        uniqueId[(i * 2) + 1] = nibble + '0';
+      else
+        uniqueId[(i * 2) + 1] = nibble + 'A' - 10;
+      uniqueId[(i * 2) + 2] = 0; // NULL-terminate
+    }
+  }
+
+  if (!provided)
+    delete data;
+
+  return ((const char *)uniqueId);
+}
+
+
 // CONFIGURATION INTERFACE (protocol v27 and above)
 
 // Given a key, load the payload with data that can then be extracted to 8, 16, or 32 bits

src/u-blox_GNSS.h

@@ -459,6 +459,10 @@ class DevUBLOXGNSS
   bool setDynamicSPARTNKeys(uint8_t keyLengthBytes1, uint16_t validFromWno1, uint32_t validFromTow1, const uint8_t *key1,
                             uint8_t keyLengthBytes2, uint16_t validFromWno2, uint32_t validFromTow2, const uint8_t *key2);
 
+  // Get unique chip ID - UBX-SEC-UNIQID
+  bool getUniqueChipId(UBX_SEC_UNIQID_data_t *data = nullptr, uint16_t maxWait = kUBLOXGNSSDefaultMaxWait); // Get the unique chip ID using UBX_SEC_UNIQID
+  const char *getUniqueChipIdStr(UBX_SEC_UNIQID_data_t *data = nullptr, uint16_t maxWait = kUBLOXGNSSDefaultMaxWait); // Get the unique chip ID using UBX_SEC_UNIQID
+
   // General configuration (used only on protocol v27 and higher - ie, ZED-F9P)
 
   // VALGET

src/u-blox_structs.h

@@ -2031,6 +2031,20 @@ typedef struct
   UBX_TIM_TP_data_t *callbackData;
 } UBX_TIM_TP_t;
 
+// SEC-specific structs
+
+// UBX-SEC-UNIQID (0x27 0x03): Unique chip ID
+// The ID is five bytes on the F9 and M9 (version 1) but six bytes on the M10 (version 2)
+const uint16_t UBX_SEC_UNIQID_LEN_VERSION1 = 9;
+const uint16_t UBX_SEC_UNIQID_LEN_VERSION2 = 10;
+
+typedef struct
+{
+  uint8_t version;
+  uint8_t reserved0[3];
+  uint8_t uniqueId[6];
+} UBX_SEC_UNIQID_data_t;
+
 // ESF-specific structs
 
 // UBX-ESF-ALG (0x10 0x14): IMU alignment information