Goodix presents GR5525 software development kit (SDK) to help GR5525 series users boost their efficiency in project evaluation and development. GR5525 SDK supports full functionality of Bluetooth LE Protocol Stack (Bluetooth 5.3), and provides a complete set of peripheral drivers, as well as various library files. It includes a rich set of reference files and examples on Bluetooth LE device roles, GATT profiles/services, peripheral APP drivers, libraries, OTA, DTM, power consumption, FreeRTOS, and LVGL.
GR5525 SDK supports automatic power consumption management and provides multiple low power modes, so that the GR5525 SoCs can run with ultra low power consumption. The SDK also ensures firmware security, by providing firmware encryption and download.
GR5525 SDK streamlines project evaluation and development, supporting popular IDEs: Keil, IAR and GCC. It includes essential tools, such as GProgrammer for PC-based download and programming, GRUart and GRDirect Test Mode Tool for PC-based serial port debugging, and GRToolbox for mobile debugging.
To evaluate a development project, users can work with GR5525 Starter Kit. GR5525 SDK provides relevant examples that can be directly run on the GR5525 Starter Kit Board.
Supports full functionality of Bluetooth LE Protocol Stack (Bluetooth 5.3)
Multiple peripherals including GPIO, Timer, PWM, WDT, I2C, UART, SPI, QSPI, DSPI, ADC, PDM, I2S, AES, HMAC, PKC, and TRNG
Reference examples for all Bluetooth LE device roles and GATT profiles/services
A rich set of libraries and peripheral examples
Examples for DTM testing, and power consumption evaluation and testing
OTA and fast DFU
FreeRTOS 10.0.0
LVGL 8.1.0
Firmware encryption and download
Low-power management
Debugging with J-Link RTT
Development on Windows or Linux; toolchains of Keil, IAR and GCC are supported
GR5525 Starter Kit
GR5525 Starter Kit (GR5525 SK) is a Goodix proprietary platform that helps users quickly get started with project evaluation, development, debugging, and performance verification for GR5525 series SoCs.
Read MoreBluetooth: Resolved the probabilistic pairing failure when multiple devices initiated SC pairing simultaneously; resolved an issue where updating advertising data conflicted with other Bluetooth LE services in specific scenarios; enhanced SDK robustness by resolving assert issues caused by interrupt latency during parameter updates.
Peripheral: Optimized driver defects in modules such as APP TIMER, ADC, UART, and GPIO.
System: Fixed the SRAM retention strategy to prevent abnormal memory data after waking up from sleep; resolved a hardfault issue that could occur due to FPB patch failure during warm boot.
Compiling environment: Fixed the issue where the FPB function was abnormal when the nano library was used in the GCC compiling environment. In the latest SDK version, the nano library is enabled by default to minimize code size.
Download algorithm: Added a download algorithm, GR5xxx_16MB_Flash_Jflash.FLM, which could be used for firmware download via J-Link Commander or J-Flash.
Recommendation: Use NVDS only for static system configuration (not for dynamic configuration). For more robust data storage, it is advisable to develop custom solutions or adopt open-source file systems, such as LittleFS.
Bluetooth: Resolved connection drop issues caused by Bluetooth LE 2M PHY parameter updates; optimized memory exceptions in advertising scenarios; improved the MAC address de-duplication algorithm
Peripheral: Optimized driver defects of modules including USRT, I2C and QSPI
System: Optimized ultra deep sleep mode and NVDS
IDE: Addressed timeout exceptions in Keil download algorithm; optimized GCC firmware size; upgraded IAR (> 9.40.1+)
Added display examples for LVGL V8.31
Removed the tools folder (containing GRToolbox, GRUart, GProgrammer, and GRDirect Test Mode Tool) in SDK. Users can download the tools from Goodix official website “Software Resources”
NVDS usage recommendation: It is recommended that NVDS be used only for static system configuration (not for dynamic configuration). For more robust data storage needs, you may develop your own solution or adopt an open-source file system such as LittleFS.
Programming interfaces for full-functionality Bluetooth LE Protocol Stack (Bluetooth 5.3)
A complete set of on-chip peripheral drivers (including UART, TIMER, and QSPI), and automatic low-power management for peripherals
A rich set of Bluetooth LE applications and peripheral example projects
Various example projects based on LVGL graphics library
Supports Keil/IAR/GCC, and provides GR5525 API Reference based on Doxygen
Firmware and data encryption, as well as OTA
Provides such development tools as GRToolbox (Android), GRUart (Windows), GProgrammer (Windows/Linux), and GRDirect Test Mode Tool (Windows)
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