Added info that a zero value means not set/used for the standard regi…

…ster firmware code.

_coverpage.md

@@ -1,6 +1,6 @@
 
 
-![VSCP logo](./images/logo_400.png)
+![VSCP logo](./images/logo_100.png)
 
 # The VSCP Specification
 

variables.xml

@@ -1,4 +1,4 @@
 <var>
-    <creation-time>2025-01-19 17:31:00</creation-time>
-    <document-version>1.15.10</document-version>
+    <creation-time>2025-02-05 16:41:11</creation-time>
+    <document-version>1.15.11</document-version>
 </var>

vscp_register_abstraction_model.md

@@ -60,8 +60,8 @@ _Note:_ Add 0xFFFFFF80 to an address below to get the corresponding level II sta
  | 160/0xA0  | Read Only   | VSCP_STD_REGISTER_DEVICE_TYPE+2<br />Standard device type  *Added in version 1.9.0 of the specification* | 
  | 161/0xA1  | Read Only   | VSCP_STD_REGISTER_DEVICE_TYPE+3<br />Standard device type (LSB) *Added in version 1.9.0 of the specification*  | 
  | 162/0xA2  | Write Only  | VSCP_STD_REGISTER_NODE_RESET<br /> Standard configuration should be restored for a unit if first 0x55 and then 0xAA is written to this location and is done so withing one second. *Added in version 1.10.0 of the specification* | 
- | 163/0xA3  | Read Only  |  VSCP_STD_REGISTER_FIRMWARE_CODE_MSB<br />Firmware device code MSB. Used to inform bootloader software about which version of firmware that should be loaded on this particular hardware. *Added in version 1.13.0 of the specification* |
- | 164/0xA4  | Read Only  |  VSCP_STD_REGISTER_FIRMWARE_CODE_LSB<br />Firmware device code LSB. Used to inform bootloader software about which version of firmware that should be loaded on this particular hardware. *Added in version 1.13.0 of the specification* |
+ | 163/0xA3  | Read Only  |  VSCP_STD_REGISTER_FIRMWARE_CODE_MSB<br />Firmware device code MSB. Used to inform bootloader software about which version of firmware that should be loaded on this particular hardware. A zero value means not set/used. *Added in version 1.13.0 of the specification* |
+ | 164/0xA4  | Read Only  |  VSCP_STD_REGISTER_FIRMWARE_CODE_LSB<br />Firmware device code LSB. Used to inform bootloader software about which version of firmware that should be loaded on this particular hardware. A zero value means not set/used. *Added in version 1.13.0 of the specification* |
   | 165/0xA5  | Read Only | VSCP_STD_REGISTER_NICKNAME_ID_MSB<br /> MSB of 16-bit nickname-ID for node if assigned or 0xFF if no nickname-ID assigned. ONLY if 16-bit nickname is used. Undefined if not. *Added in version 1.14.8 of the specification* |
  | 165/0xA6-207/0xCF | —         | Reserved for future use. Return  | 
  | 208/0xD0-223/0xDF | Read Only   | VSCP_STD_REGISTER_GUID<br /> 128-bit (16-byte) globally unique ID (GUID) identifier for the device. This identifier uniquely identifies the device throughout the world and can give additional information on where driver and driver information can be found for the device. MSB for the identifier is stored first (in 0xD0). | 

vscp_specification_history.md

@@ -2,6 +2,7 @@
 
  | Date       | By   | Description |
  | ---------- | ---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| 2025-02-05 | AKHE | Added info that a zero value means not set/used for the standard register firmware code. |
 |2025-01-19| AKHE | Added bootloader abort events |
 |2025-01-13| AKHE | Misc updates/fixed for measurement units. [See](https://github.com/grodansparadis/vscp/discussions/279#discussioncomment-11796872) |
 |2025-01-09| AKHE | CLASS1.MEASUREMENT, type13/14 new units. Fixed faulty link. Fixed unit error. |