Datasheet (2 in all)
Introduction：Datasheet of GD32L235xx series MCU.
Introduction：Datasheet of GD32L233xx series MCU.
User Manual (20 in all)
Introduction：GD32L23x series MCU user manual of GD32L233 and GD32L235.
Introduction：AN051 is designed to help users better solve ESD problems by choosing the right TVS model.
Introduction：GD-Link V2 programming and debugging tool user guide. Application to the entire GD32 MCU series.
Introduction：GD-Link programming and debugging tool user guide. Suitable for GD32F1/GD32F2/GD32F3/GD32F4/GD32E1/GD32E2/ GD32E5/GD32W5/GD32L2/GD32VF1 series MCU
Introduction：AN060 aims to introduce the definition, measurement and calculation methods of thermal resistance, as well as some heat dissipation measures to help users solve the problem of device overheating during design.
Introduction：AN055 aims to introduce ESD operation precautions during the use of GD32 MCU, so as to help customers avoid ESD/EOS interference during development and debugging.
Introduction：AN049 aims to analyze the firmware library architecture of the USBD module, and briefly describe the functions of the firmware library functions, to provide reference for customers’ development.
Introduction：AN014 application note describes how to configure and develop a GD32 MCU project using the Arduino IDE.
Introduction：AN015 introduces the method of porting LittleFS to GD MCU project, and tests the read and write function of file system. This application note is applicable to GD32F1/GD32F2/GD32F3/GD32F4/GD32E1/GD32E5/GD32W5/GD32L2 series MCU.
Introduction：AN033 describes how to use makefile to manage the whole MCU code project in Linux environment. You can specify files or modules for compilation.
Introduction：AN036 proposes a software solution to I2C bus lock when using GD MCU I2C module to communicate with EEPROM. This application note is applicable to GD32F1/GD32F2/GD32F3/GD32F4/GD32E1/GD32E5/GD32W5/GD32L2 series MCU.
Introduction：AN041 is an application note about how to realize the program jumping from Bootloader to APP. Applicable to GD32 ARM core series MCU.
Introduction：AN043 application note introduces how to measure the GD32 MCU flash operating time, including mass erasing time, page erasing time, and word programming time. Take GD32L23x MCU as an example.
Introduction：AN044 application note introduces how to calibrate the internal IRC8M by using LXTAL in the GD32F10x. The application note can also be applied in other series of GD32 MCU.
Introduction：AN017 provides two programming methods for problems that require downloading data to SPI Nor Flash during development. Applicable to the full range of GD32 MCUs.
Introduction：AN020 is an application note on how to use CmBacktrace to track errors on the GD32 chip.
Introduction：AN021 provides four common methods for measuring code execution time on MCUs during development. Applicable to the full range of GD32 MCUs.
Introduction：AN022 is an application note that introduces how to map 0xC0000000 to 0x00000000 to run the program on GD32 MCU that supports address mapping.
Introduction：AN023 is an application note on how to port and test Letter shell on the GD platform.
Introduction：AN041 is an application note about how to use Eclipse for GD32 MCU development. Applicable to GD32 ARM core series MCU.
Tool & Software (7 in all)
Introduction：Embedded Builder is a C-language integrated development environment (IDE) of GD32MCU. User can configure peripherals graphically, the IDE can generate code, compile project and debug.
Introduction：ISP console tool under Linux system, used for serial port and USB burning GD MCU Flash data.
Introduction：GD-Link programmer is a tool to program GD series MCU, With GD-Link programmer, user can download the application program to MCU’s internal flash memory, set read and write protection, etc. And the programmer also supports GD-Link offline download function.
Introduction：ISP console tool under Windows system, used for serial port and USB burning GD MCU Flash data.
Introduction：This programming software based on the bootloader in the chip, the communication interface supports UART and USB, and supports the basic operations of programming / erasing / reading MCU flash and ob.
Introduction：GD32L23x standard firmware library is suitable for GD32L233/GD32L235 series MCU. The library is compatible with the CMSIS (Cortex-M Microcontroller Software Interface Standard), and includes programs, data structures and macro definitions. It covers the features of all the integrated peripherals, contains all the related drivers and sample programs.
Introduction：There are 2 files in the zip file, they are used to support the development of GD32L23x applications in Keil and IAR ,
details are as follows:
1. GigaDevice.GD32L23x_DFP.2.0.1.pack, suitable for GD32L233/GD32L235 series MCU, pack files used to support keil ver 5.27 or later
2. IAR_GD32L23x _ADDON.2.0.1.exe, suitable for GD32L233/GD32L235 series MCU, addon files used to support IAR ver 8.2 or later
Evaluation Board (1 in all)
Introduction：GD32L23x Demo Suites. The Demo Suites can support GD32L233R-EVAL，GD32L233C-START, GD32L233K-START, GD32L235E-START, GD32L235O-START, GD32L235Q-START and GD32L235R-EVAL board.
Other Document (1 in all)
Introduction：GD32 MCU Selection Guide, for all GD32 products.
Application Note (26 in all)
Introduction：AN184 is used to introduce how to migrate from the GD32L233 series to the GD32L235 series, and related precautions.
Introduction：AN191 Introduces the Precautions to be Taken in the Hardware Layout of the GD32 MCU.
Introduction：AN181 introduces the I2C noise filter of the GD32 MCU and the calculation of related hold and setup times.
Introduction：AN092 is designed for engineering designers based on GD32 MCU development, and mainly introduces the functional configuration of GPIO, the internal structure, and the precautions when using in different scenarios
Introduction：AN192 describes how to use GD32 MCU for spreading frequency testing, and uses GD32F470 as an example to introduce the relevant operation steps and their impact.
Introduction：AN197 describes the module usage precautions when developing on GD32L23x MCUs.
Introduction：AN95 aims to guide customers on ways to improve the accuracy of GD32 MCU temperature sensors.
Introduction：AN179 introduces the characteristic differences between GD32L235 and GD32EL233 product series, mainly for electric characteristics and peripheral function characteristics.
Introduction：AN069 is designed to describe the hardware development of GD32L23x series products, so as to allow developers to quickly get started and use GD32L233/L235 series products.
Introduction：AN201 mainly introduces that the MCU frequency is high, FLASH can be used to simulate EEPROM to reduce the cost. In this document, a method of simulating EEPROM with FLASH is introduced, which realizes the EEPROM data modification by byte, and can prevent the data lost by software reset or power reset.
Introduction：AN163 provides some EMC protection design references for MCU hardware design, aiming to help optimize the EMC performance of MCU in the product application process.
Introduction：AN142 introduces the sources and some improvement methods of EMC in motors and their drive systems, helping users quickly understand and optimize key circuits in the drive system.
Introduction：AN164 introduces the principle of Dhrystone and the porting method on GD32 MCU.
Introduction：AN167 describes the application configuration and operation of GD32L233 deep-sleep 2 mode to meet the application requirements of low power systems.
Introduction：AN125 introduces MCU chip-level RE test methods and precautions to help users quickly understand chip-level RE test.
Introduction：AN159 describes the differences between MCU chip-level ESD and system-level ESD within test methods and test levels, helping users to clarify the irrelevance between chain-level ESD and system-level ESD.
Introduction：AN065 introduces how to port FATFS file system based on GD32 MCU.
Introduction：AN128 introduces MCU system-level EFT test method, experiment implementation details and precautions to help users quickly understand the meaning of EFT parameters and test details in the datasheet.
Introduction：AN127 introduces MCU system-level ESD test method, experiment implementation details and precautions to help users quickly understand the meaning of ESD parameters and test details in the datasheet.
Introduction：AN089 introduces the design principle and usage of TouchKey software library, which can help developers quickly use TouchKey software library for configuration and development.
Introduction：AN094 describes how to wake the GD32L233 series MCU from deepsleep 1 mode by using EXTI, RTC, USART, LPUART, LPTIMER, I2C, and LVD methods to satisfy specific low-power application scenarios.
Introduction：AN106 introduces the methods to reduce the power consumption of GD32L233 MCU.
Introduction：AN059 introduces the basic principle of GD32 SAR ADC, and introduces the methods to improve the ADC sampling accuracy from several aspects, such as theory and practical sampling.
Introduction：AN052 is designed to describe the principle and application notes of GD32 MCU resonator-based clock circuit ,so as to facilitate developers to more quickly realize the conversion from design scheme to actual circuit.
Introduction：AN064 aims to describe the method of using TIMER to calibrate the low speed oscillator.
Introduction：AN062 aims to introduce EMC principles and characteristics, provide recommendations for EMC application based on various application conditions.
Errata Sheet (1 in all)
Introduction：This document introduces the limitations and related solutions of GD32L233 product series.
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