# GR5405.SDK

**Repository Path**: goodix-ble/GR5405.SDK

## Basic Information

- **Project Name**: GR5405.SDK
- **Description**: Software Development Package for GR5405 series SoC
- **Primary Language**: C
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-11-25
- **Last Updated**: 2025-05-21

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# GR5405 Series SoC



## 1. Introduction

- The Goodix GR5405 is an automotive Bluetooth LE 5.3 SoC designed to operate across a wide temperature range from –40°C to 105°C, and is AEC-Q100 Grade 2 certified. It is suitable for various automotive applications, including digital key and Tire Pressure Monitoring System (TPMS).
- Based on Arm® Cortex®-M4F CPU core running at 64 MHz, the GR5405 integrates a 2.4 GHz RF transceiver, Bluetooth LE 5.3 protocol stack, 512 KB on-chip Flash memory, 96 KB system SRAM, and a rich set of peripherals. It provides outstanding RF performance, with a maximum TX power of +15 dBm, an RX sensitivity of -99 dBm in Bluetooth LE 1 Mbps mode, achieving an overall link budget of up to 114 dB.
- The GR5405 supports connection between multiple centrals and multiple peripherals. It can be configured as a Broadcaster, an Observer, a Peripheral, or a Central, and supports the combination of all the above roles.



## 2. Key Features


- Bluetooth LE Protocol Stack (Bluetooth 5.3)
- AEC-Q100 Grade 2 certified
- Multiple peripherals including GPIO, Timer, PWM, WDT, I2C, UART (LIN), SPI, ADC, AES, TRNG, RTC, DMA, COMP, and LP_Timer, with MISRA C:2012 supported
- Reference examples for Bluetooth LE device roles and GATT profiles/services
- A rich set of libraries and peripheral examples

- Examples for DTM testing and power consumption evaluation/testing
- OTA and fast DFU
- FreeRTOS
- Algorithms for downloading firmware through Keil/IAR
- Low-power management
- Debugging with J-Link RTT
- Development on Windows or Linux; toolchains of Keil, IAR, and GCC are supported



## 3. Change Log


- Click to view the [change log](../../wiki)