Dear fellow programmers,
For my team test suite (a project for school) it is required to turn the RF field on (on the Adafruit pn532 break out board).
I found a way to turn it on, but it refuses to stay on: (partial of the code comes from the adafruit pn532 library)
bool AdafruitPn532Extended::SetFieldOn()
{
commandbuffer[0] = PN532_COMMAND_RFCONFIGURATION;
commandbuffer[1] = 0x01;
commandbuffer[2] = 0x01;
if (!sendCommandCheckAck(commandbuffer, 3))
{
return 0x0; // no ACK
}
return 1;
}
I also tried:
bool AdafruitPn532Extended::CheckForReadableTarget()
{
uint16_t timeout = 0;
//setPassiveActivationRetries(0xFF);
commandbuffer[0] = PN532_COMMAND_INLISTPASSIVETARGET;
commandbuffer[1] = 1; // max 1 cards at once (we can set this to 2 later)
commandbuffer[2] = PN532_MIFARE_ISO14443A;
if (!sendCommandCheckAck(commandbuffer, 3, timeout))
{
return 0x0; // no cards read
}
return 1;
}
With this code it works once, then I have to manual remove the tag or adafruit-PN532 breakout shield in order for it to work again.
My best guess is, it's either the first one where power down mode has to be turned off in a way. Or the second option where most probably I have to trick the RF field detection into thinking a new tag was placed in the field.
I thank you very much for your time.
