STM32L4系统配置(SYSCFG)介绍Main features 3
Manage external interrupt(EXTI) connection to GPIOX(X=A.H)
In SYSCFG EXTICR1/2/3/4
SRAM2 write protection and software erase
Erase control and busy flag In SYSCFG SCSR
Erase control bit write access protected with