Semtech's LoRa USP™ (Unified Software Platform) is a firmware platform designed to support Semtech's LR20xx multi-PHY radios. It provides backward-compatible build options for previous Gen2 SX126x and Gen3 LR11xx devices. The platform offers a unified firmware ecosystem, enabling multiprotocol operations across various MCU platforms through open-source environments such as Zephyr. Learn more about Unified Software Platform (USP)
| Product | 产品编号 | 状态 | Version | 产品适用范围 | 键入 | 描述 |
|---|---|---|---|---|---|---|
| USP | SWSD020 | Preferred | V1.1.2 | a. LR20xx: Validated b. LR11xx and SX126x: Buildable |
Protocol library and Bare-metal SDK | Bare-metal based Unified Software Platform offering protocol stacks and examples |
| USP_Zephyr | SWSD021 | Preferred | V1.1.2 | a. LR20xx: Validated b. LR11xx and SX126x: Buildable |
Protocol library and Zephyr-based SDK | Zephyr-based Unified Software Platform offering protocol stacks and examples |
LoRa Basics Modem/Modem-E is an easy-to-use software library that simplifies the development of LoRaWAN® end-nodes in the ISM Sub-GHz and 2.4GHz bands for worldwide interoperability. It provides developers with an event-driven interface at a high level of abstraction. The Software stack is compatible with TS001-LoRaWAN L2 1.0.4 and Regional Parameters RP2-1.0.3 specifications.
The LoRa Basics Modem library targets peripheral MCUs and the LoRa Basics Modem-E offers an embedded stack option hosted in Semtech’s LR1121 3rd generation LoRa® IC. Learn more about LoRa Basics® Modem
| 产品编号 | 状态 | Version | 产品适用范围 | 键入 | 描述 |
|---|---|---|---|---|---|
| SWL2001 | 在用 | 4.8.0 | LR1110, LR1120, LR1121, SX1261, SX1262, SX1268, SX1280, SX1281 | L2 Protocol Library | LoRa Basics® Modem LoRaWAN L2 protocol stack bare metal & ThreadX® |
| SWL2001 (Zephyr)® | 在用 | 4.8.0 | LR1110, LR1120, LR1121, SX1261, SX1262, SX1268, SX1280, SX1281 | L2 Protocol Library | LoRa Basics® Modem LoRaWAN L2 protocol stack Zephyr OS |
| SWGA003 | 在用 | 2.0.6 | SX1301, SX1302, SX1302, SX1250, SX1255, SX1257 | 数据包转发器 | LoRa Basics Station - A secure, remotely configurable packet forwarder |
| SWGH004 | 在用 | 2.1.0 | SX1302, SX1303, SX1250 | Gateway Silicon HAL | Corecell UDP 数据包转发器和硬件抽象层 |
| SWMC01E | NRND | 1.1.8 | LR1110 | Silicon Microcode | LR1110 Modem-E Firmware |
| SWGH003 | 在用 | 1.1.0 | SX1280 | Gateway Silicon HAL | 2.4GHz Gateway Reference Design Hardware Abstraction Layer |
| SWMC02E | 在用 | 2.0.1 | LR1121 | Silicon Microcode | LR1121 Modem-E firmware |
| SWGH001 | NRND | 5.0.1 | SX1301、SX1257 | 数据包转发器 | 适用于 v1.0 和 v1.5 参考设计的 SX1301 UDP 数据包转发器和硬件抽象层 |
| 产品编号 | 状态 | Version | 产品适用范围 | 键入 | 描述 |
|---|---|---|---|---|---|
| SW3P002 | 新推出 | 2.9 | SX1261, SX1262, SX1268, LLCC68 | SDK | Nordic Sidwalk extension for nRF Connect SDK |
| SW3P003 | 新推出 | 2.2.1 | SX1261, SX1262, SX1268, LLCC68 | SDK | Silicon Labs Simplicity Studio Extension for Amazon Sidewalk |
| SW3P004 | 新推出 | 不适用 | SX1262, LR1110 | SDK | STM32 Amazon Sidewalk SDK |
| 产品编号 | Version | 产品适用范围 | 键入 | 描述 |
|---|---|---|---|---|
| SWSD004 | 3.0.1 | LR1110, LR1120 | 软件开发套件 | LoRa Edge Demonstrator |
| SWSD003 | 2.3.0 | LR1110, LR1120, SX1261, SX1262, SX1268,LR1120,LR1121 | 软件开发套件 | Transceiver SDK |
| SWDM001 | 1.3.0 | LR1110, LR1120, LR1121, SX1261, SX1262, SX1268, LLCC68 | Demonstration | LRFHSS Demonstration & Drivers |
| SWDR003 | 2.3.2 | LLCC68 | Silicon Driver | LLCC68 Transceiver Driver |
| SWDR002 | 2.3.2 | SX1261, SX1262, SX1268 | Silicon Driver | SX126x Transceiver Driver |
| SWDR001 | 2.5.3 | LR1110, LR1120, LR1121 | Silicon Driver | LR11xx Transceiver Driver |
| SWTL001 | 2.5.1 | LR1110, LR1120,LR1121 | Tool | LR11xx Firmware Updater Tool |
| SWMC021 | 1.3 | LR1121 | Silicon Microcode | LR1121 Transceiver Firmware |
| SWMC020 | 2.1 | LR1120 | Silicon Microcode | LR1120 Transceiver Firmware |
| SWMC010 | 4.1 | LR1110 | Silicon Microcode | LR1110 Transceiver Firmware |
| SWEV003 | 1.0.0 | SX1261, SX1262, SX1268, SX1280, SX1281 | Demonstration Kit | SX126x DVK w/Screen Binary |
| SWDM008 | 1.6.0 | SX1280, SX1281 | Demonstration | SX128X Demonstration Firmware Repository |
| SWAP002 | 2.0.3 | LR1110 | Smartphone Application | LoRa EDGE Config iOS App |
| SWDR005 | 1.0.0 | SX1280, SX1281 | Silicon Driver | SX128x Transceiver Driver |
| SWAP001 | 2.1.9 | LR1110 | Smartphone Application | LoRa EDGE Config Android App |
| SWTL00L | 1.2.0 | LR1110, LR1120 | Tool | LR1110 更新工具 |
| SWEV001 | 3.2.0 | LR1110 | Evaluation Kit | LR1110 EVK Demonstration Application |
| SWDR004 | 3.1.0 | LR1110 | Silicon Driver | LR1110 Modem-E Driver |
| SWDM002 | 1.5.0 | LR1110 | Demonstration | LR1110 Modem-E Application Examples |
| SWGM001 | 1.0.0 | SX1302, SX1303, SX1261 | Gateway Silicon Microcode | SX1302 SPI USB Bridge Example Code |
| SWTL004 | 1.1.0 | LR1110, LR1120, SX1261, SX1262, SX1268 | Tool | LoRaWAN Conformance Test Bench |
| SWMC02E | 5.2.0 | LR1121 | Silicon Microcode | LoRa Basics Modem-E “V2” for LR1121 |
| SWDR009 | 1.0.0 | LR1121 | Silicon Driver | LR1121 Modem-E “V2” C Driver |
| SWTL009 | 0.7.3 | LR1121 | Tool | LR1121 Modem-E “V2” Command Interpreter |
| SWDM022 | 1.0.0 | LR1121 | Demonstration | LR1121 Modem-E “V2” Examples |
Fast Long-Range Protocol (FLRP) Family
The LR2021 introduces a family of fast, long-range transfer capabilities built on Semtech's fourth-generation LoRa® IP. At its core is FLRC, a high-speed modulation delivering up to 2.6 Mbps at LoRa®-class range. On top of FLRC, FLRP adds a LoRa®-synchronized wake-up phase that pre-aligns timing and frequency before each transfer, improving frequency tolerance, virtually eliminating wake-on-noise, and ensuring reliable delivery through automatic acknowledgment and retry. The result is a single chip that can serve everything from image transfers to firmware updates and sensor uploads, without sacrificing the sensitivity and power efficiency that make LoRa® the platform of choice for IoT.
| PROTOCOL |
FLRP-Burst
Connection setup · Adaptive link selection · Burst segmentation · ACK + retry
Optional AES-CMAC integrity |
|
| PHY | LoRa® Wake-on-Radio (WOR) · CAD · Frequency offset measurement · Time synchronization | FLRP-Burst High-speed data burst · Raw packet TX/RX · 0.26–2.6 Mbps · CR 1/2, 2/3, 3/4 · Sub-GHz & 2.4 GHz |
Key capabilities
- Up to 1.7 Mbps effective baud rate @ 2.6 MHz PHY
- 1 km+ range at both Sub-GHz and 2.4 GHz
- Adaptive link with up to 16 channel selection and automatic datarate adaptation
- Up to 16 MB payload per exchange, with automatic multi-burst segmentation
- Reliable delivery: per-burst ACK with selective retransmit over lossy links
- Optional AES-CMAC per-packet integrity, replacing the radio CRC
- Sub-GHz and 2.4 GHz frequency bands
Ready to get started? Explore the FLRP-Burst User Guide for full setup and configuration details.
Use cases
- Security cameras Alarm verification: multi-year battery-powered PIR + camera - send snapshot/clip on alarm for verification.
- Firmware & config: fast OTA download to remote devices.
- Sensor bulk upload: offload logged data in one exchange.
- Long-range file transfer: large payloads, no latency budget.
| Product | 产品编号 | 状态 | 产品适用范围 | 键入 | 描述 |
|---|---|---|---|---|---|
| USP | SWSD020 | Preferred | LR2021 | Protocol library and Bare-metal SDK | Bare-metal based Unified Software Platform offering protocol stacks and examples |
| USP_Zephyr | SWSD021 | Preferred | LR2021 | Protocol library and Zephyr-based SDK | Zephyr-based Unified Software Platform offering protocol stacks and examples |
资源
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