Forum Post: RE: TMS320F28388D: Communication from CM to CPU1 triggers only once in the adapted example ipc_ex2_msgqueue

Hi, You will have to do Interrupt_clearACKGroup ( INTERRUPT_ACK_GROUP11 ); since CM to CPU IPC Interrupt 1 is part of PIE Group 11 ( INT_CMTOCPUXIPC1 - 11.10) Regards Samritha