RF430FRL152H: RF430FRL152H : How to get raw data?

Minhyung Kang

Part Number: RF430FRL152H
Other Parts Discussed in Thread: MSP-EXP430G2ET, , TRF7970A, MSP430G2553

Hi. My name is minhyung.

Currently MSP-EXP430G2ET + DLP7970ABP with Master kit
I am trying to make a custom device with RF430FRL152H.

It is a device that outputs LED light intensity received by Light sensor. After that we will reconstruct the Light sensor data to derive the final result. To do this, we need raw data. However, I found that it was impossible to get raw data from the RF430FRL152H GUI interface and save it to a computer. Is there a other way to do this?

And looking a little bit about it, I get to know that we need to know the baud rate of the UART. Can you tell me the baud rate of the master kit?

Thank you.

over 6 years ago

0 Helfried Vollbrecht over 6 years ago

TI__Mastermind 18265 points

Hi Minhyung

we do not have a description of the protocol to the TRF7970 reader.

I can give you some information as a starting point.

You do not have to care about the baudrate, because it is not a USB to UART converter.

Just communicate with the reader with a terminal program (i.e. Termite) or a own application using the assigned COM port.

Do not terminate the commands by CR or LF.

At first the reader has to be initialized and then you can communicate with the RF430FRL152H via the ISO15693 RF interface.

The following shows an example of commands and the expected responses (RF430FRL152H GUI Demo Mode):

Initalization of the TRF7990 Reader:

------------------------------------

Command: 0108000304FF0000 Response: TRF7970A EVM

Command: 010C00030410002101020000 Response: Register write request

Command: 0109000304F0000000 Response: AGC Toggle

Sequence for the Demo Mode:

----------------------------------

Setup RF430FRL152H virtual registers (write block 1,2,0)

Command: 01130003041802210100000000000000000000 Response: Request mode [00]

Command: 01130003041802210211111008000000000000 Response: Request mode [00]

Command: 01130003041802210001000701010100400000 Response: Request mode [00]

Read ADC data (read block 9) (Adr. 0xF8B0 - 0xF8B4)

Command: 010B000304180220090000 Response: Request mode [00D027DC266C25FFFF]

The commands are constructed like this (example for the ISO15693 Read Block command):

01 Startbyte (fix)
0B Length of command
00 fix
03 fix
04 fix
18 Send ISO15693 command
02 ISO15693 Flags
20 ISO15693 Read Block Command
09 ISO15693 Block Number
00 fix
00 fix

Hope that helps.

Best regards,

Helfried

0 Minhyung Kang over 6 years ago in reply to Helfried Vollbrecht

Intellectual 490 points

Dear Helfried

Thanks to your reply.

However I can not understand your reply perfectly.

-----------------------------------------------------------------------------------------------------------------------------

You do not have to care about the baudrate, because it is not a USB to UART converter.

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I don't under stand it. I would like to output the raw data that the MSP430G2553 received from the RF430FRL152H to the PC. But Communication between MSP430G2553 and PC is known as USB to UART. Is not it ..?

The final goal I want is to plot the received information from the RF430FRL152H on MSP430G2553 in real-time from PC to Matlab. To do this, matlab must communicate with the Usb port in a serial manner, which requires information such as baud rate, parity, and terminator.
for example)
s = serial ('COM4')
set (s, 'BaudRate', 115200)
set (s, 'Terminate', CRLF)

But I don't know well how to communicate between MSPG2553 and PC to transmit the data recived from RF430FRL152H. Could you help me in this part?

How can you use the 'command' mentioned in your answer to do this?

Thanks again for your kind reply.

Best Regards,

Minhyung

0 Helfried Vollbrecht over 6 years ago in reply to Minhyung Kang

TI__Mastermind 18265 points

Hi Minhyung,

because this is a "virtual" COM port the data transfer is handled like it is a UART.

Try using to communicate with the reader with a terminal program (i.e. Termite).

If you send the string (without CRLF) : 0108000304FF0000 to the MSPG2553 + TRF7970ABP it should return the string: TRF7970 EVM

Then send all the other commands I described before to the reader and you will receive the ADC data with the last command.

Best regards,
Helfried

0 Minhyung Kang over 6 years ago in reply to Helfried Vollbrecht

Intellectual 490 points

Hi my name is minhyung.

I mistakenly clicked "This resolved my issue".

I write the command(0108000304FF0000) you suggest, but Nothing happens.

I don't know reason.

Please help me.