The SD93Fxxx Development Guide from Jinghua Microelectronics explains system initialization, peripheral configuration, watchdog setup, and example code for…
This guide introduces the SD93Fxxx series SoC and provides step‑by‑step instructions for initializing the system, configuring peripherals such as ADCs, UART, RTC, LCD, and setting up the independent watchdog. Example code for the SD93F115‑JBS chip demonstrates key functions like button interrupts, LED control, and low‑power sleep testing.
The document details the main function flow, flag initialization, watchdog timing, and GPIO setup (P83 pin) with practical tips for avoiding common pitfalls. It concludes with a summary of best practices for reliable development on the SD93Fxxx platform. This manual is written in Chinese.
| MCU architecture | 32‑bit |
|---|---|
| ADC type | high‑precision |
| Watchdog overflow count | 23040 |
| Watchdog timeout | 5.76 seconds |
| GPIO P83 max current | 12 mA |
The system initialization function enables the IHRC and ILRC clocks first, then opens the clocks for required peripherals before configuring them.