Hi,
I'm using the RF430FRL152H EVM now.
I'd like to read the correct NFC value (RF13MRXF?) whenever the NFC reader (like Smartphone) is tagging on RF430FRL152H EVM.
If there is any suitable example code, please share with me.
When I see it, there is no enough example code for RF430 series.
Please help me.
Thanks.
Just for general E2E information here is how the questions were addressed.
The RF430FRL152HEVM project that has an example sensor firmware and also a custom command that allows sending data in and out of the RF430.
Here is an example project. The custom command function:
//firmware snipper from project, check RF430FRL152H Technical Reference Manual for how to use the RF13M or RFID module.
void userCustomCommand()
{
u16_t test;
//use RF13MRXF to receive two bytes
//use RF13MRXF_L to receive one byte, continue reading this register until all data has been received (check the FIFO length register for how much data is in the FIFO
//same for RF13MTXF, RF13MTXF_L, each write to this register add the data to the FIFO which is then later sent out
//Device has 32 byte in FIFO and 32 byte out FIFO, this includes the CRC bytes
test = RF13MRXF_L; // pull one byte from the recieve FIFO
if( RF13MFIFOFL_L == CRC_LENGTH_IN_BUFFER) // if all bytes have been read out, the only thing left should be the CRC bytes, 2 of them
{
RF13MTXF_L = 0; // no error, send out
RF13MTXF_L = test; // send out the received byte
}
else
{
RF13MTXF_L = 0x1; // an error response
}
}
When the custom command is issued this function checks if there is only one byte as the payload. If there is then it sends back a 0x00 as the first character and echoes the received byte in the second character. If more or less than one byte was received then it responds with 0x01 (as an error condition).
Here is how the code was tested:
Using a TRF7970AEVM and this GUI in test mode (use “Send” button):
The string that was sent to the RF430FRL152H:
1802AA0702
18 – raw string command (TRF specific) (omit this byte if sending using a NFC handset or another reader)
02 – ISO/IEC 15693 high data rate flags, handled by RF stack
AA – custom command ID (can be between A0 to Dx), handled by RF stack
07 – TI manufacturer ID, handled by RF stack
02 – this is the payload byte, it is echoed, payload can be up to 26 bytes including this one, this byte is what the RF430 firmware receives
Result:
[0002]
00 – no error
02 – echoed from received byte
Return payload can be up to 30 bytes plus 2 bytes for CRC total of 32 bytes.
If anything other than one byte is sent the result will only be 0x01.
Hi Alex,
I am testing this FW and use TRF7970A EVM to send the test command as you told.
but I can not get the echo reponse from FR430FRL152HEVM and the result show like as below
==========================================================================
[]
18:09:11.003 --> 010C0003041802AA07020000
18:09:11.452 <-- Request mode.
[]
==========================================================================
would you please help me to check what's wrong with my process?
Frist I use your example project to program RF430 by CCS and run it in debug mode then put RF430FRL152HEVM close to TRF7970A EVM and open the GUI to send those command but I cann't get any response.
thank you
Jerrel
