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Enumeration: PASS
usbwait -t 5 20b7:1540 && echo okay
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okay
========================================================================
LED: PASS
echo >/dev/tty;								echo 'Press [P]ass if the LED blinks, [F]ail if not'			  >/dev/tty;	atrf-gpio -c -p						                xxxxxx1x.xxxxxxxx.xxxxxxxx						delay=50	                xxxxxx0x.xxxxxxxx.xxxxxxxx					delay=200
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========================================================================
GPIO scan (P_ON): PASS
 atrf-gpio -d usb -p 		HHHHoHxH.HxHxHxHh.ohzoHoHH	'# reset state (H)'			HHHH0HxH.HxHxHxHh.ohzoHoHH	'# test SLP_TR (0)'	HHHHoH0H.HxHxHxHh.ohzoHoHH	'# test LED (0)'			HHHHoHxH.HxHxHxHh.LhzoHoHH	'# test IRQ_RF (0)'			HHHHoHxH.HxHxHxHh.o0zoHoHH	'# test nSEL (0)'			HHHHoHxH.HxHxHxHh.ohz0HoHH	'# test MOSI (0)'			HHHHoHxH.HxHxHxHh.ohzoH0HH	'# test SCLK (0)'			0000o0x0.0x0x0x0h.ohzo0o00	'# reset state (0)'			000010x0.0x0x0x0h.ohzo0o00	'# test SLP_TR (1)'			0000o010.0x0x0x0h.ohzo0o00	'# test LED (1)'	0000o0x0.0x0x0x0h.o1zo0o00	'# test nSEL (1)'			0000o0x0.0x0x0x0h.ohz10o00	'# test MOSI (1)'			0000o0x0.0x0x0x0h.ohzo0100	'# test SCLK (1)'
------------------------------------------------------------------------
========================================================================
GPIO scan (TRX_OFF): PASS
 atrf-gpio -d usb 		HHHH0HzH.HxHxHxHh.oHzHHHHH	'# TRX_OFF state (H)'			HHHH0H0H.HxHxHxHh.oHzHHHHH	'# test LED'		HHHH0HzH.HxHxHxHh.o0zHHHHH	'# test nSEL'				HHHH0HzH.HxHxHxHh.oHz0HHHH	'# test MOSI'				HHHH0HzH.HxHxHxHh.oHzHH0HH	'# test SCLK'
------------------------------------------------------------------------
========================================================================
GPIO scan (INT): PASS
 atrf-gpio -d usb -p			xxxxxxxx.xxxxxxxx.oxxxxxxx	'# reset state'				0x04=1				'# IRQ_POLARITY = 1'			xxxxxxxx.xxxxxxxx.hxxxxxxx	'# test INT (1)'			xxxxxxxx.xxxxxxxx.h0xxxxxx	'# test INT (2)'	xxxxxxxx.xxxxxxxx.h1xxxxxx	'# restore nSEL'			0x04=0'# IRQ_POLARITY = 0'			xxxxxxxx.xxxxxxxx.o1xxxxxx	'# test INT again'
------------------------------------------------------------------------
========================================================================
GPIO scan (SLP_TR): PASS
 atrf-gpio -d usb					02=9 delay		'# enter PLL_ON'			02:9/0x1f			'# verify state'			frame				'# one-byte frame'	0xf:				'# clear interrupts'			0xe=8	'# enable TRX_END intr'			xxxxxxxx.xxxxxxxx.oxxxxxxx	'# confirm INT'				slp_tr delay			'# send frame'				xxxxxxxx.xxxxxxxx.hxxxxxxx	'# check INT'
------------------------------------------------------------------------
========================================================================
GPIO scan (nRST): PASS
 atrf-gpio -d usb					02:8/0x1f		'# verify TRX_OFF'			reset				'# reset transceiver'			02:0/0x1f			'# verify P_ON'
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========================================================================
Identification: PASS
atrf-id -d usb
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20b7:1540 protocol 0.1 hw 2 (ATmega32U2)
          #79 Sun Jun  5 22:01:35 ART 2011
          AT86RF231, part 0x03 version 2 manufacturer xxxx001f (Atmel)
========================================================================
Crystal frequency: FAIL
 atrf-xtal -d usb -p 50
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-120.01 ppm (outside bounds)
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exit code 1