CCS/LDC1614: LDC1614EVM - Firmware Version Header String - LabView to MSP430

Edgar Ortega

Part Number: LDC1614
Other Parts Discussed in Thread: , FDC2214

Tool/software: Code Composer Studio

Hi, I've written a LavView interface to communicate with the LDC1614EVM, I found several examples on how to write and read the registers from the LDC1614, but is unclear to me how to form the string that retrives the firmware version.

in host_interface.c i found:

const uint8_t HOST_CMD_STREAM_WHITELIST[] = {
HOST_CMD_CONTROLLER_TYPE,
HOST_CMD_FIRMWARE_VERSION,
HOST_CMD_ENUMERATE_DEVICES,
HOST_CMD_SPI_READ_BYTES,
HOST_CMD_READ_ALL_DATA,
HOST_CMD_LED_STATES
};

and:

case HOST_CMD_FIRMWARE_VERSION:
// hack here to reset device
removeAllTasks();
// copy from const data
memcpy(&(responsePkt->fields.data[0]),&HOST_FIRMWARE_VERSION[0],HOST_FIRMWARE_VERSION_LENGTH);
responsePkt->fields.hdr.length = HOST_FIRMWARE_VERSION_LENGTH;
sendPacket(responsePkt,HOST_OUT_HDR_SIZE + HOST_FIRMWARE_VERSION_LENGTH + HOST_CRC_SIZE);
break;

I've tried sending 0x02 from labview and read 4 bytes immediately and I get all 0x00,

Thanks for the help,

over 6 years ago

0 Evgeny Fomin over 6 years ago

TI__Genius 9300 points

Hello Edgar,

Send ? (x3F)

Read back 8 bytes, where :

Response Packet

Byte	Value			Description
Byte	Decimal	Hex	ASCII	Description
0	63	3F	?	Command Flag - Who am I?
1	69	45	E	Response Data
2	86	56	V	Response Data
3	77	4D	M	Response Data
4	…	…	…	Response Data - Sensing Solution Frame Version Major
5	…	…	…	Response Data - Sensing Solution Frame Version Minor
6	…	…	…	Response Data - EVM Board ID
7	…	…	…	Response Data - EVM Board Version

0 Edgar Ortega over 6 years ago in reply to Evgeny Fomin

Intellectual 270 points

Thanks, Just ? (0x3F), no CRC?

0 Evgeny Fomin over 6 years ago in reply to Edgar Ortega

TI__Genius 9300 points

Hi Edgar,

Latest rev FW does not utilize CRC. So yes, just ? . I just quickly tested it and it worked, I got back from my FDC2214 board 0x3F45 564D 0003 2400.
Your FW version may be different, and EVM ID will definitely be different.

0 Edgar Ortega over 6 years ago in reply to Evgeny Fomin

Intellectual 270 points

Thanks,

I'm getting replies now.

I have two variables in my code, and trying to add an extra command that will send those to me, do you know where in the code I could insert this command?

The switch statement in (host_interface.c), is only for reading and writing to registers.

Thanks,

0 Evgeny Fomin over 6 years ago in reply to Edgar Ortega

TI__Genius 9300 points

Hello Edgar,

If you are talking about the FW code, it should be there somewhere, as the GUI uses it to ID the EVM. I'm sorry, I do not know where exactly as I'm not familiar with the FW code.

If you are talking about your LV code, I do not understand your question.

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CCS/LDC1614: LDC1614EVM - Firmware Version Header String - LabView to MSP430