Hi,
Arduino PN532 shield and PN532 breakout board have RSTOUT_N pin out, or the pad for connection. On the data sheet it is indicated as I/O pin but its description says that it indicates that PN532 is in reset stat or not.
The data sheet describes that RSTPD_N, which is not available on PN532 shield, can reset the chip on its falling edge.
Are there any smart way to reset PN532?
Reset PN532 on NFC shield and breakout
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- ktownsend
- Posts: 1447
- Joined: Thu Nov 05, 2009 2:18 am
Re: Reset PN532 on NFC shield and breakout
RSTPD_N is available on the top of the breakout board and can be used to do a hard reset if required.
It is also available on the shield on the optional 6 pin header as pin number 5 (marked as RST, just before IRQ). RSTOUT_N isn't broken out on the shield, only on the breakout board.
It is also available on the shield on the optional 6 pin header as pin number 5 (marked as RST, just before IRQ). RSTOUT_N isn't broken out on the shield, only on the breakout board.
- sin
- Posts: 2
- Joined: Mon Aug 13, 2012 8:31 pm
Re: Reset PN532 on NFC shield and breakout
Thank you!
As you have pointed out, RST pad on NFC shield is connected not to RSTOUT_N (like in break-out board front pins) but to RSTPD_N.
Also I found the pages in PN532 User Manual that mentions Reset can be done by falling edges on VDD or RSTPD_N pin, and there is no firmware command.
As you have pointed out, RST pad on NFC shield is connected not to RSTOUT_N (like in break-out board front pins) but to RSTPD_N.
Also I found the pages in PN532 User Manual that mentions Reset can be done by falling edges on VDD or RSTPD_N pin, and there is no firmware command.
ktownsend wrote:RSTPD_N is available on the top of the breakout board and can be used to do a hard reset if required.
It is also available on the shield on the optional 6 pin header as pin number 5 (marked as RST, just before IRQ). RSTOUT_N isn't broken out on the shield, only on the breakout board.
Please be positive and constructive with your questions and comments.