The aim of this application note is to show h ow to scan the 4x4 matrix keypad multiplexed wit h a four 7-segment display. The software attach ed to this application note scans the pressed ke y and displays it on the multiplexed 7-segment L EDs. This application note makes obvious Inter rupt capability of the STR710 device to offer a b etter key scan.

Packet : 7941923str71x_gpio_scanning_a_44matrix_keypad.rar filelist
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\71x_conf.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\71x_it.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\main.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\readme.txt
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\scat.scf
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\version.txt
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\71x_init.s
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\71x_lib.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\71x_vect.s
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\eic.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\gpio.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\pcu.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\rccu.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\retarget.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\tim.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source\xti.c
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\source
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\realview\GPIO.DDB
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\realview\GPIO.prj
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\realview
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\71x_it.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\71x_lib.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\71x_map.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\71x_type.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\eic.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\gpio.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\pcu.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\rccu.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\tim.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include\xti.h
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)\include
STR71x GPIO Scanning a 4x4 Matrix Keypad(1799 AN)

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