msp430f149 usart 谁能告诉我这个程序是什么意思啊
//*//MSP-FET430P140Demo-USART0,Ultra-LowPwrUART19200EchoISR,32kHzACLK////Description:Echoareceivedcharacter,USART0RXISRathigh-speedused//withultra-lowpowertechniques.NormaloperationinLPM3,Set_DCO//subroutineneedstobecalledtoconfigureDCOthat ...