Solvline Eddy DK - Manual (Page 32)

Eddy DK Programmer Guide
32
2.4.2.6. SW1~SW16: Key Pad
Key Pad of DK board are consisted with the 4x4 matrix. GPIOs are set to Input mode to read the Key value. and Key
2, 4, 6, 8 also have the ▲(UP), ▼(DN), ◀(LEFT), ▶(RIGHT) direction function for LCD menu.
P10-P17 4x4 Key matrix I/O
PB20 First Row line IN
PB21 Second Row line IN
PB30 Third Row line IN
PB31 Forth Row line IN
PC20 First Column line from left IN
PC21 Second Column line from left IN
PC22 Third Column line from left IN
PC23 Fourth Column line from left IN
2.4.2.7. SW17: Power
In order to power up, pull up this switch.
2.4.2.8. Reset1: Reset
Pin name Function Discription I/O
PC16 nRESET
Polling Input signal continually from External Reset
key, implement as below with checking the constant
time of "Low."
Less than 5 seconds: General reset function.
More than 5 seconds: Factory Default function.
IN