Topic: about to go crazy, raspberry and pn532 breakout
I spent the whole day, checked and rechecked cables, connection soldering, everything is perfect...
I just can't make it working
raspberry + pn532 breakout board
of course I followed the instructions, connected directly uart port to the board... after spending hours in testing I noted that randomly I get:
pi@raspberrypi ~/src/libnfc/libnfc-1.7.0-rc7/examples $ ./nfc-poll
/home/pi/src/libnfc/libnfc-1.7.0-rc7/examples/.libs/lt-nfc-poll uses libnfc 1.7.0-rc7
pn53x_check_communication: Timeout
lt-nfc-poll: ERROR: Unable to open NFC device.
pi@raspberrypi ~/src/libnfc/libnfc-1.7.0-rc7/examples $ ./nfc-poll
/home/pi/src/libnfc/libnfc-1.7.0-rc7/examples/.libs/lt-nfc-poll uses libnfc 1.7.0-rc7
pn53x_check_communication: Timeout
lt-nfc-poll: ERROR: Unable to open NFC device.
pi@raspberrypi ~/src/libnfc/libnfc-1.7.0-rc7/examples $ ./nfc-poll
/home/pi/src/libnfc/libnfc-1.7.0-rc7/examples/.libs/lt-nfc-poll uses libnfc 1.7.0-rc7
NFC reader: pn532_uart:/dev/ttyAMA0 opened
NFC device will poll during 30000 ms (20 pollings of 300 ms for 5 modulations)
ISO/IEC 14443A (106 kbps) target:
ATQA (SENS_RES): 00 04
UID (NFCID1): ad e3 c9 23
SAK (SEL_RES): 08
pi@raspberrypi ~/src/libnfc/libnfc-1.7.0-rc7/examples $ ./nfc-poll
/home/pi/src/libnfc/libnfc-1.7.0-rc7/examples/.libs/lt-nfc-poll uses libnfc 1.7.0-rc7
pn53x_check_communication: Timeout
lt-nfc-poll: ERROR: Unable to open NFC device.
pi@raspberrypi ~/src/libnfc/libnfc-1.7.0-rc7/examples $ ./nfc-poll
/home/pi/src/libnfc/libnfc-1.7.0-rc7/examples/.libs/lt-nfc-poll uses libnfc 1.7.0-rc7
pn53x_check_communication: Timeout
lt-nfc-poll: ERROR: Unable to open NFC device.
so .. it worked once... It must work again.
Thought to a timeout problem, incresed the timeout in the driver from 1 to 3 seconds, but .. didn't help
I really don't know what to try more....
thanks for any kind of help,
v