Hello.
I'm implementing CCC transfer between RT685 and ST's LSM6DSO.
The below image is what I expected. I tested other equipment. Broadcast 'Reset DAA'
Here's my code. I didn't use ISR. MINTSET register set 0x8AF00.
enum eI3C_COMM_STATUS i3c_ccc_rstdaa_b(void)
{
uint32_t mctrlReg = I3C_MASTER->MCTRL;
uint32_t masterState;
size_t txCount = 0xFFUL;
uint32_t status;
I3C_MasterClearStatusFlags(I3C_MASTER, (uint32_t)kMasterClearFlags);
masterState = I3C_MasterGetState(I3C_MASTER);
if ((masterState != kI3C_MasterStateIdle) && (masterState != kI3C_MasterStateNormAct))
{
PRINTF("I3C busy...\r\n");
return COMM_FAILED;
}
I3C_MasterClearStatusFlags(I3C_MASTER, (uint32_t)kMasterClearFlags);
mctrlReg &= ~(I3C_MCTRL_REQUEST_MASK | I3C_MCTRL_TYPE_MASK | I3C_MCTRL_IBIRESP_MASK |
I3C_MCTRL_DIR_MASK | I3C_MCTRL_ADDR_MASK | I3C_MCTRL_RDTERM_MASK);
mctrlReg |= I3C_MCTRL_REQUEST(1) | I3C_MCTRL_TYPE(0) |
I3C_MCTRL_DIR(0) | I3C_MCTRL_ADDR(I3C_BCAST_ADDR);
I3C_MASTER->MCTRL = mctrlReg;
I3C_MASTER->MWDATABE = CCC_RSTDAA_B;
/*
do {
status = I3C_MasterGetStatusFlags(I3C_MASTER);
} while ((status & (uint32_t)kI3C_MasterControlDoneFlag) != (uint32_t)kI3C_MasterControlDoneFlag);
I3C_MasterClearStatusFlags(I3C_MASTER, (uint32_t)kI3C_MasterControlDoneFlag);
//*/
///*
do {
I3C_MasterGetFifoCounts(I3C_MASTER, NULL, &txCount);
} while (txCount != 0U);
//*/
I3C_MasterStop(I3C_MASTER);
return COMM_DONE_OK;
}
I thought, It look normal but there was not exist Ack part of 0x7E. So, It was not complete clearly, abnormal STOP.
How to fix it?
Thanks.
