2018-03-29 01:10 AM
Hi
I have the following problem with above mentioned function:Every time i command the CR95HF to get in the Tag Detection Mode it wakes up immediately. I get the following response from CR95HF:
00 01 02�?�?
The Command i give the CR95HF is the following:
char DataOut[16] = {0x07, 0x0E, 0x02, 0x21, 0x00, 0x79, 0x01,
0x18, 0x00, 0x20, 0x60, 0x60, 0x64, 0x74,
0x3F, 0x08};
//Byte structure Byte content
(0x07); //Command Idle
(0x0E); //Length
(0x02); //WU Source + LFO frequency Source = Tag Detection
(0x21); //EnterCtrlL Tag Detection
(0x00); //EnterCtrlH Tag Detection
(0x79); //WUCtrlL Tag Detection
(0x01); //WUCtrlH Tag Detection
(0x18); //LeaveCtrlL Tag Detection / can´t differ from 0x1800
(0x00); //LeaveCtrlH Tag Detection / can´t differ from 0x1800
(0x20); //WU Period Time allowed between two Tag Detections
(0x60); //Osc Start Defines delay for HFO stabilization
(0x60); //DacStart Defines delay for DAC stabilization
(0x64); //DacDataL Define lower and higher DAC comparator values
(0x74); //DacDataH
(0x3F); //SwingsCnt Numer of HF swings allowed during Tag Detection
(0x08); //MaxSleep Maximum number of tag detection trials�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?
I cant estimate where things go wrong, the Wake Up by low Pulse on IRQ IN works fine and, of course, there is no NFC Tag close to the CR95HF´s Antenna.
Best Regards,
Armin
#cr95hfSolved! Go to Solution.
2018-03-29 08:46 AM
Hello Armin,
It sounds that your CR95HF is not calibrated Did you perform the calibration procedure as mention in the datasheet prior performing the Tag detection setting? I believe that the DAC range is not tuned according your system.I would suggest to follow the calibration procedure described in the following application note and retest your command.
Hope it will helpRegardsPB
2018-03-29 08:46 AM
Hello Armin,
It sounds that your CR95HF is not calibrated Did you perform the calibration procedure as mention in the datasheet prior performing the Tag detection setting? I believe that the DAC range is not tuned according your system.I would suggest to follow the calibration procedure described in the following application note and retest your command.
Hope it will helpRegardsPB
2018-04-03 05:25 AM
Thank you very much, i thought the caibration procedure is something optional for more perfomance.
Regards
Armin Böss