Cincoze GEB-3301-R10, User Manual

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GP-3000 Series | User Manual
108
5.3.1.4.2 Control of GPIO10 (LED ON/OFF)
#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 GPIO10 to output Mode
WriteByte(AddrPort, 0xE0) // Select configuration register E0h
Value=ReadByte(DatarPort) //Read Original Value from register E0h
WriteByte(AddrPort, 0xE0) // Select configuration register E0h
WriteByte(DataPort, Value | 0x01) // Set (bit 0) = 1 to select GPIO10 as output mode
<Output Value>
WriteByte(AddrPort, 0xE1)
// Select configuration register E1h
Value=ReadByte(DatarPort) //Read Original Value from register E1h
WriteByte(AddrPort, 0xE1)
// Select configuration register E1h
WriteByte(DataPort, Value & 0xFE ) // Set (bit 0) =0 to output GPIO10 as Low
WriteByte(AddrPort, 0xE1)
// Select configuration register E1h
WriteByte(DataPort, Value | 0x01 ) // Set (bit 0) =1 to output GPIP10 as High
<Leave the Extended Function Mode>
WriteByte(AddrPort, 0xAA)