3. Documentation and Tool Navigation

This chapter records only the public materials and development tools that were verified here, taken from the N32H49x series product page, the model pages, and the download center on the Nations Technologies website. The product page and the model pages may list different entries; the model pages take precedence. The “Purpose” column summarizes the document text and the accompanying description.

3.1 Chip and Development Documents

Document	Purpose	Where to obtain
N32H492 series datasheet (V1.0.0)	Main features, pin definitions, packages, and electrical characteristics	N32H492 model page
N32H493 series datasheet (V1.0.0)	Main features, pin definitions, packages, and electrical characteristics	N32H493 model page
N32H497 series datasheet (V1.0.0)	Main features, pin definitions, packages, and electrical characteristics	N32H497 model page
N32H497xG product brief (V1.0.0)	Series feature overview and typical applications	N32H49x series product page
N32H49x series user manual (V1.0.0)	Memory and bus architecture, peripheral operation, register definitions, and timing	Chip documents
Chip selection guide (2026.4)	Models, packages, and resource configurations of the series	N32H49x series product page
N32H49X series hardware design guide	Supply and decoupling, ESD protection, ADC and clock design, minimum-system reference designs	Guides
Dual-bank switching guide	Switching flow and option byte configuration for dual-bank Flash	Guides
Crypto algorithm guide	How to call the AES, DES/3DES, SHA, SM3, and SM4 hardware crypto engines	Guides

No standalone N32H49x errata document was found on the website during this check; the notes and troubleshooting sections of this guide rely on the user manual text alone.

The user manual text this guide is based on is V1.1.0 (2026.7.20), which is newer than the V1.0.0 PDF on the website; where they differ, the local V1.1.0 text takes precedence. Materials on the website are updated over time; use the version listed on the website when downloading.

3.2 Hardware Evaluation Boards

Board	Typical materials	Where to obtain
N32H497ZGL7_EVB	Schematic and hardware user guide of the full-featured board; on-board LED1 to LED3, KEY1 to KEY3, a WKUP button, and USB VBUS control	Hardware
N32H497ZGL7_STB	Schematic and hardware user guide of the minimum-system board	Hardware

The on-board resources and pin assignments of the two boards are listed below, taken from bsp/inc/bsp_eval.h:

Resource	N32H497ZGL7_EVB	N32H497ZGL7_STB
LED1	PA3	PA3
LED2	PB3	PA8
LED3	PA8	PB4
WKUP button	PA0, pull-down, high level when pressed	PA2, pull-down, high level when pressed
User button KEY1	PC13, pull-up, low level when pressed	PA4, pull-up, low level when pressed
User button KEY2	PA15, pull-up, low level when pressed	PA5, pull-up, low level when pressed
User button KEY3	PB4, pull-up, low level when pressed	PA6, pull-up, low level when pressed
USB VBUS control	PH2	PB3

SDK examples target the full-featured board N32H497ZGL7_EVB V1.0. The board macros are switched between the two boards through DEMO_BOARD in bsp/inc/bsp_eval.h, which defaults to N32H497ZGL7_EVB_V1_0;
the LED, button, and USB VBUS pin macros all change with the selection. The log UART is fixed to USART1 on PA9 (transmit, alternate function AF5) and PA10 (receive, alternate function AF5), 115200-8-N-1, for both boards. Evaluation boards can be ordered from the buy samples page of the website.

3.3 SDK and Development Support Packages

Document	Purpose	Where to obtain
N32H49x series software development kit	The SDK this guide is based on, containing the driver library, CMSIS device support, example projects, and middleware	Firmware and software
KEIL PACK package	Keil MDK-ARM device support: device models, Flash programming algorithms, and debug descriptions	Firmware and software
GCC development environment guide	Environment setup for building and debugging this series with the GNU Arm Embedded Toolchain and VS Code	Guides
Flash programming algorithm source project	Keil and IAR Flash programming algorithm source projects, for building your own `.FLM` files	Tools
J-Link model patch package	Adds the Nations device description files to J-Link so that it recognizes this series	Tools
NSLink and production tools	Online and offline production programming tools	Tools

The KEIL PACK package, the J-Link model patch, and the GCC development environment package are shared across series and are not necessarily listed on the model pages;
search the download center by resource name for them.

3.4 Official Website Entries

Entry	Content	Link
N32H49x series product page	Series introduction, typical applications, technical resources, evaluation boards, and production tools	Open
N32H492 model page	Main features, packages, and datasheet of N32H492	Open
N32H493 model page	Main features, packages, and datasheet of N32H493	Open
N32H497 model page	Main features, packages, and datasheet of N32H497	Open
Download center	Search all public materials by resource type and keyword	Open
Chip documents	Product briefs, datasheets, and user manuals	Open
Firmware and software	SDK packages, KEIL PACK packages, and firmware upgrade packages	Open
Hardware	Evaluation board schematics and hardware user guides	Open
Application notes	Application notes on various topics	Open
Guides	Hardware design guide, GCC environment setup, crypto algorithms, and dual-bank switching	Open
Tools	Flash programming algorithm projects, J-Link patches, and production programming tools	Open
Buy samples	Sample and evaluation board purchase	Open