Seatronx MP-3700, Руководство пользователя

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MPC-3700
Series l User’s Manual
133
GPIO Sample Code
GPIO Setting
The GPIO function is provided by Nuvoton NCT6106D, and it can be accessed through its GPIO index/data port. To access the
GPIO register, write index to the index port, and then read/write from/to data port. The configuration on the
MPC-3700
is
described as below.
Psuedo Code
#define AddrPort
0x2e
#define DataPort 0x2f
#define SIO_UnLock_Value 0x87
#define SIO_Lock_Value 0xaa
#define SIO_LDN_GPIO 0x07
#define GPIO_Port 0xF1
//Enter_Config
WriteByte (AddrPort, SIO_UnLock_Value);
WriteByte (AddrPort, SIO_UnLock_Value);
WriteByte (AddrPort, 0x07);
WriteByte (DataPort, SIO_LDN_GPIO);
//Set OUT1~OUT8Value
WriteByte (AddrPort, GPIO_Port);
WriteByte (DataPort, 0x00); //set OUT1~OUT8 value, OUT1=Bit0, OUT2=Bit1
// Read In1~In8 value
WriteByte (AddrPort, 0xED);
Data= ReadByte (DataPort); //Read In1~In8 value
// close config mode
WriteByte
(
AddrPort
,
SIO_Lock_Value
);
Appendix – WDT & GPIO
PIN# GPIO# Default Configuration
18 XCOM-
17 XCOM+
16 OUT8 DIO Output8
15 IN8 DIO Input8
14 OUT7 DIO Output7
13 IN7 DIO Input7
12 OUT6 DIO Output6
11 IN6 DIO Input6
10 OUT5 DIO Output5
9 IN5 DIO Input5
8 OUT4 DIO Output4
7 IN4 DIO Input4
6 OUT3 DIO Output3
5 IN3 DIO Input3
4 OUT2 DIO Output2
3 IN2 DIO Input2
2 OUT1 DIO Output1
1 IN1 DIO Input1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
OUT8 OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
IN8 IN7 IN6 IN5 IN4 IN3 IN2 IN1