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--- packet:new-packet_radio_3_0 [2025/11/09 23:20] – Initial WIP m0ahn
+++ packet:new-packet_radio_3_0 [2026/04/16 07:25] (current) – [Dec 2025 Firmware Commands] m0ahn
@@ Line 1: / Line 1: @@
-===== New Packet Radio 3.0 =====
+====== New Packet Radio 3.0 ======
-This page covers supporting information for users of New Packet Radio (NPR) 3.0 - the latest revision of the original F4HDK-invented New Packet Radio modem first released in 2019.
+This page covers supporting information for users of New Packet Radio (NPR) 3.0 - the latest revision of the original F4HDK-invented New Packet Radio modem developed and released by Steffen D05DSH and Localino in 2025/26
-==== Background and Introduction ====
+===== NPR 3.0: Quick Start =====
+By default, NPR 3.0 firmware is configured in Client mode, To establish a link, a Client and Master is required. Quick start setup for both is covered below.
+All configuration is via the Ethernet port using **telnet**, or, via UART. Default configuration is **192.168.0.0/24**, the NPR IP is **192.168.0.253** and DHCP range starts at **192.168.0.65**
-==== Configuration ====
+==== Initial Setup ====
+  - Connect an antenna or dummy load
+  - Power the device using 13.8V DC
+  - Connect a DHCP enabled PC to the Ethernet port
+  - Open a **terminal** and telnet to **192.168.0.253**
+OR
+  - Connect UART @ 961200 baud to the TX, RX and GND pins
-==== Pinouts ====
+For Windows 10, [[https://www.amazon.co.uk/dp/B07XRF152K|Example UART]] used with these [[https://zadig.akeo.ie/|these]] drivers, then connected using [[https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html|Putty]]
+Note: If you lose IP access for any reason, you can always access NPR via UART
+==== Client Setup ====
+  - At the **ready>** prompt, type **display config**
+  - Note the **modulation** and **frequency** settings, these must match the Master
+==== Master Setup ====
+When in Master mode, DHCP on the NPR Ethernet port is disabled. Follow these steps reconfigure NPR and require a local static IP is setup.
+  - At the **ready>** prompt, type **display config**
+  - Note the **modem_IP**, **netmask** and **IP_begin**
+  - Type commands:
+    * **set is_master yes**
+    * **save**
+    * **reboot**
+  - On the connected PC or network, set a manual IP within the subnet and avoiding DHCP range starting with **IP_begin**, e.g. **192.168.0.20**
+  - Validate connectivity by re-opening the telnet connection to **192.168.0.253**
+==== Establishing and Validating and RF Connection ====
+  - When in RF range, NPR should connect. The CONN light will be Green on the Client and TX and RX lights flashing
+  - On the Server, see who is connected by running **who**
+  - On the Client, see connected information by running **status**
+  - Assuming the PC connected to the Master has an IP of 192.168.0.20 and PC connected to the Client has a DHCP assigned address of 192.168.0.65, both devices should be able to ping
+==== Additional Points to Note ====
+  - <color #ed1c24>Be really careful if changing the IP configuration - set the config, check it, check it again, log it, then save and reboot</color>
+  - Set your NIC MTU to 750 to achieve reliable and consistent performance
+  - You always telnet to the modem_IP, which counter-intuitively does not have to be unique on the network. In the default configuration, you would use 192.168.0.253 on all modems when connecting via telnet
+===== NPR 3.0: Upgrading Firmware =====
+==== Prereqs ====
+Flashing the firmware in NPR 3.0 requires:
+  - A Windows PC
+  - Installation of the {{ :packet:stm32_vcp_driver.zip |}} drivers
+  - A Micro-USB cable
+  - The new firmware (with .nfw extension)
+  - The pynpr.exe program
+==== Upgrade Process ====
+  - Disconnect the power supply
+  - Connect the Micro-USB Cable
+  - Run the upgrade using either:
+    * pynpr fwflash -s COM_PORT path/to/nfw.nfw
+    * pynpr fwflash -s auto path/to/nfw.nfw
+==== Dec 2025 Firmware ====
+NPR Commands
+Date: 2025-12-11
+Editor: do5dsh
+starting from FW: localino-npr_fw25121101_hw240719
+localino-npr_fw25121101 default configures 70cm band.
+Download: {{:packet:localino-npr_fw25121101_hw240719.nfw.zip|fw25121101}} and UNZIP before upgrading
+Changes:
+--------
+- fixed LBT mode
+- added runtime band selection
+- added RSSI threshold monitoring
+- TX_test mode for a maximum duration 3s
+Commands:
+---------
+set the RF band
+set band  33/70/200 for 33cm (23cm version, 70cm or 200cm)
+set LBT
+set lbt_enabled yes/no
+configure LBT threshold
+set lbt_rssi_threshold -40 ... -105
+Read out RSSI threshold of current noise floor
+lbt_stats
+TX_test mode
+TX_test number_of_seconds  (1..3). you need to disable the radio beforehand with "radio off".
+===== Original NPR - Background Material, Detailed Configuration Guides and Protocol Spec =====
+[[https://hackaday.io/project/164092-npr-new-packet-radio|Original NPR Hackaday Page]]
+[[https://hackaday.io/project/164092/files|Original NPR Source Files and Docs - Master]]
+Unable to link to the Master docs using a URL - copied locally for ease of access
+{{ :packet:npr70_introduction_en_v3.6.pdf |}}
+{{ :packet:npr_advanced_guide_v2.16.pdf |}}
+{{ :packet:npr_specification_v2.0.pdf |}}
+===== NPR 3.0: Rear Pinouts =====
 Connector 1
 ^  Pinout  ^  Description  ^
@@ Line 21: / Line 130: @@
 ^ - | Not Used |
 ^ GND | Ground |
-^ PE1 | |
+^ PE1 | STM32 GPIO |
 ^ GND | Ground |
-^ PE0 | |
+^ PE0 | STM32 GPIO |
-^ PB7 | |
+^ PB7 | STM32 GPIO |
-^ PD7 | |
+^ PD7 | STM32 GPIO |
 Connector 2
 ^  Pinout  ^  Description  ^
 ^ 3V3 | 3.3V Out |
-^ CLK | |
+^ CLK | STM32 GPIO |
-^ DIO | |
+^ DIO | STM32 GPIO |
 ^ GND | Ground |
-^ RST | |
+^ RST | STM32 GPIO |
-==== Upgrading Firmware ====
-Flashing the firmware in NPR 3.0 requires:
-  - A Windows PC
-  - Installation of the xxx drivers
-  - Either a) a Micro-USB cable, or b) a UART interface connected to the RX, TX and GND pins
-  - The new firmware (with .nfw extension)
-  - The pynpr.exe program