请求帮助
现在在使用FS4500,想要进入休眠,并使用1145CAN收发器进行唤醒,收发器的INH连接SBC板子的IO_0,我的理解:使用上位机发送唤醒帧报文,1145CAN收发器的INH引脚由输出低转变成输出高,SBC板子的IO_0引脚也会产生相应变化,疑问的是后续需要我去使用ICU驱动捕获产生中断退出睡眠还是其他方式,还是IO_0引脚产生相应变化,会自动更新寄存器值,退出睡眠?请求帮助
Hi,
I think that you do not need the ICU driver. Once configured properly (IO_0 connected to INH, WU_IO0_1:0 = 0b01 ), the FS4500 will autonomously wake up from sleep when IO_0 transitions (e.g. when INH goes high in response to a specific CAN frame).
BRs, Tomas