1.stm32版DS3231

源码https://cloud.189.cn/t/eaUvUz7nAbI3

SCL-> PB10
SDA-> PB11

TX->PA10

RX->PA9

2.ch32f103c8t6

要安装Keil.WCH32F1xx_DFP.1.0.0.pack

点击下载:https://cloud.189.cn/t/ei67VbeM3eye

连接线和stm32f103c8t6一样