Cincoze CS-100/P2100 Series, Руководство пользователя

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CS - 100 -
P2100 Series | User Manual
86
5.1.1.4.2 Control of GP80 to GP87
#define AddrPort 0x4E
#define DataPort 0x4F
<Enter the Extended Function Mode>
WriteByte(AddrPort, 0x87)
WriteByte(AddrPort, 0x87)
// Must write twice to enter Extended mode
<Select Logic Device>
WriteByte(AddrPort, 0x07)
WriteByte(DataPort, 0x06)
// Select logic device 06h
<Output/Input Mode Selection>
// Set GP80 to GP87 output Mode
WriteByte(AddrPort, 0x88) // Select configuration register 88h
WriteByte(DataPort, (ReadByte(DataPort) & 0xFF))
// Set (bit 0~7) = 1 to select GP 80 ~87 as Output mode.
<Output Value>
WriteByte(AddrPort, 0x89)
// Select configuration register 89h
WriteByte(DataPort, Value) // Set bit 0~7=(0/1) to output GP 80~87 as Low or High
<Leave the Extended Function Mode>
WriteByte(AddrPort, 0xAA)