Hello,
I want to use MIMXRT595-EVK to communicte with I3C slave sensor, ex TDK ICM-42688-P.
I referenced I3C example in I.MX RT500 and RT600.
I2C slave address is 0x68, ChipID register address 0x75, value should be 0x47.
But I got ChipID is 0x4E.
After change i3cPushPullBaud and i3cOpenDrainBaud, ChipID is 0x0E.
How to use I3C correctly?
Thanks.
I3C_MasterGetDefaultConfig(&masterConfig);
I3C_MasterInit(EXAMPLE_MASTER, &masterConfig, I3C_MASTER_CLOCK_FREQUENCY);
PRINTF("i3cPushPullBaud: %d\r\n", masterConfig.baudRate_Hz.i3cPushPullBaud);
PRINTF("i3cOpenDrainBaud: %d\r\n", masterConfig.baudRate_Hz.i3cOpenDrainBaud);
uint8_t AddrList[2] = {0x30, 0x31};
result = I3C_MasterProcessDAA(EXAMPLE_MASTER, AddrList, 2);
if(result == kStatus_Success)
PRINTF("DAA OK\r\n");
else
PRINTF("DAA Failure, Error: 0x%02X\r\n", result);
uint8_t CHIPID = 0xAA;
memset(&masterXfer, 0, sizeof(masterXfer));
masterXfer.slaveAddress= 0x30;
masterXfer.direction= kI3C_Read;
masterXfer.busType = kI3C_TypeI3CSdr;
masterXfer.subaddress = 0x75;
masterXfer.subaddressSize = 1;
masterXfer.data = &CHIPID;
masterXfer.dataSize = 1;
masterXfer.flags = kI3C_TransferRepeatedStartFlag;
result = I3C_MasterTransferBlocking(EXAMPLE_MASTER, &masterXfer);
if(result == kStatus_Success)
PRINTF("Chip ID = 0x%02X\r\n", CHIPID);
else
PRINTF("Read Failure, Error: 0x%02X\r\n", result);
Hi @kerryzhou ,
I referenced AN12796SW(RT600 I3C Simple Controller, Associated File)
https://www.nxp.com/webapp/Download?colCode=AN12796SW&location=null
Replaced I3C_MasterProcessDAA by the following code
SETDASA is OK, but get PID+BCR+BCD is failed
PRINTF("Broadcast CCC DISEC (DISHJ + DISMR + DISINT): ");
display_ccc_status(i3c_ccc_disec_b(CCC_DISEC_BYTE_DISHJ | CCC_DISEC_BYTE_DISMR | CCC_DISEC_BYTE_DISINT));
PRINTF("\r\n");
PRINTF("Broadcast CCC RSTDAA: ");
display_ccc_status(i3c_ccc_rstdaa_b());
PRINTF("\r\n");
i3c_demo_setdasa(0x68, 0x30);
void i3c_demo_setdasa(uint8_t static_address, uint8_t dynamic_address)
{
uint8_t loc_pid[6], loc_bcr, loc_dcr;
enum I3C_COMM_STATUS loc_i3c_comm_status;
PRINTF("Direct CCC SETDASA (hex static addr = %2X, dynamic addr = %2X): ", static_address, dynamic_address);
PRINTF("\r\n");
loc_i3c_comm_status = i3c_ccc_setdasa(static_address, dynamic_address);
PRINTF("CCC: SETDASA: ");
display_ccc_status(loc_i3c_comm_status);
PRINTF("\r\n");
if (loc_i3c_comm_status == I3C_COMM_DONE_OK)
{
loc_i3c_comm_status = i3c_ccc_getpid(dynamic_address, (uint8_t *)&loc_pid);
PRINTF("CCC: GETPID: ");
display_ccc_status(loc_i3c_comm_status);
PRINTF("\r\n");
loc_i3c_comm_status = i3c_ccc_getbcr(dynamic_address, (uint8_t *)&loc_bcr);
PRINTF("CCC: GETBCR: ");
display_ccc_status(loc_i3c_comm_status);
PRINTF("\r\n");
loc_i3c_comm_status = i3c_ccc_getdcr(dynamic_address, (uint8_t *)&loc_dcr);
PRINTF("CCC: GETDCR: ");
display_ccc_status(loc_i3c_comm_status);
PRINTF("\r\n");
PRINTF("hex PID + BCR + DCR: ");
PRINTF("%2X %2X %2X %2X %2X %2X ", loc_pid[0], loc_pid[1], loc_pid[2], loc_pid[3], loc_pid[4], loc_pid[5]);
PRINTF("%2X %2X", loc_bcr, loc_dcr);
PRINTF("\r\n");
}
return;
}
Thanks.
Hi @kerryzhou ,
Decoder of logical analyzer only have I2C, not I3C.
But decode result still be readable.
Work in I2C, response from device is good.
Work in I3C, SETDASA and static address is OK,
but dynamic address 0x30, response NACK.
And try GETPID command, response of dynamic address is ACK.
But data byte is odd.
Thanks.
Hi @kerryzhou
Read register is OK, but have some question.
1. FSL_I3C_DRIVER_VERSION of your sample is 2.4.0.
But driver version of SDK 2.1.0 is 2.3.2, it lacks some funtcion,
ex."I3C_BusMasterSetDynamicAddrFromStaticAddr"
Although I can add this function manaually.
When 2.4.0 or newer version will be released?
2. Slave device is connected in J18 connector of EVK.
Probe of logical analyzer is connected to SCL,
and GND of probe is connected to GND of device,
the communication is OK even if probe is disconnected from logical analyzer.
When remove probe, communication is failure.
I try change slew rate of pin config from SLEW_RATE_SLOW to SLEW_RATE_NORMAL,
and using FULLDRIVE_EN setting, it doesn't help.
I already try ICM-42605, ICM-42688-P, IIM-42352, IIM-42652, same problem.
What happen? wire/trace issue?
I don't have oscilloscope, the waveform cannot be provided.
And I think that probe of oscilloscope is attached, communication will be OK.
3. When using "I3C_BusMasterDoTransferToI3CDev"(referenced for sample code),
HardFault_Handler will be issued.
HardFault in this line(fsl_component_i3c_adapter.c),
