SPECIFICATIONS

1. The TypeC interface is directly connected to the USB pin of STM32, allowing for USB DFU download (only to on-chip flash), not serial download!!!

2. Communication between USB virtual serial port and computer serial port assistant can be achieved through TypeC (users need to write corresponding programs, which are included in the documentation)

3. The core board does not have a hardware circuit for converting USB to TTL serial port!! The USB DFU download and virtual serial port are both implemented through the USB port of STM32. The specific circuit can be viewed in the schematic diagram

Core Board Parameters

Main frequency 480MHz

On chip 2M Flash, 1M SRAM

Expanded QSPI driver W25Q64

External expansion of 16 bit wide 32MB SDRAM

1 reset button

1 BOOT button

1 user LED

1 TypeC interface

1 TF card interface

Reserved SWD and serial port

DDR3 gold finger leads out 71 I0 ports

Working environment temperature -40~85 ° C

743 operates at a frequency of 480M with high power consumption and an upper limit on junction temperature. If you need to work in a high-temperature environment, you need to lower the frequency. For specific power consumption and junction temperature data, please refer to the data manual