Why did frequency generated by ST25RU3993 stop? I sent direct commands: 90h, 91h, 92h and filled FIFO register for "Select" command and TXlength = 9 bytes with CRC

[SOsip.1]

After trying to send any of these commands(90h, 91h, 92h) from ST25RU3993 it freezes and its carrier frequency disappears. If I try sending them using step debug, controller doesn't freeze, but I also can't know what did it send. Reg 38h = 0, so should't be any errors, nor are there any Irq's. If I use only Query command, controller doesn't freeze. Seems like there is a problem with these commands.

Can this be associated wtih configuration of ST25RU3993?

[Cedric Dalban]

Hello,

each of these commands have specific format, the simplest direct command is 0x90 which handles CRC.

Could you please detail a bit more each of the commands you send to the tag ?

best regards,

Cedric