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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace USB2XXX
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{
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class USB2CNT
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{
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//定义函数返回错误代码
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public const Int32 CNT_SUCCESS = (0); //函数执行成功
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public const Int32 CNT_ERR_NOT_SUPPORT = (-1); //适配器不支持该函数
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public const Int32 CNT_ERR_USB_WRITE_FAIL = (-2); //USB写数据失败
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public const Int32 CNT_ERR_USB_READ_FAIL = (-3); //USB读数据失败
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public const Int32 CNT_ERR_CMD_FAIL = (-4); //命令执行失败
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//计数器模式
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public const Byte COUNTER_MODE_UP = 0;
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public const Byte COUNTER_MODE_DOWN = 1;
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//计数器触发条件
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public const Byte COUNTER_POL_RISING = 0;
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public const Byte COUNTER_POL_FALLING = 1;
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public const Byte COUNTER_POL_BOTHEDGE = 2;
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//计数器宽度
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public const Byte COUNTER_BITS16 = 16;
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public const Byte COUNTER_BITS32 = 32;
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//计数器输入引脚模式
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public const Byte COUNTER_PIN_NOPULL = 0x00;
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public const Byte COUNTER_PIN_UP = 0x01;
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public const Byte COUNTER_PIN_DOWN = 0x02;
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//计数器通道定义
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public const Byte COUNTER_CH0 = 0x01;
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public const Byte COUNTER_CH1 = 0x02;
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public const Byte COUNTER_CH2 = 0x04;
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public const Byte COUNTER_CH3 = 0x08;
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//定义初始化UART初始化数据类型
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public struct CNT_CONFIG
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{
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public Byte CounterMode; //计数模式，0-Up,1-Down
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public Byte CounterPolarity; //计数极性，0-Rising，1-Falling，2-BothEdge
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public Byte CounterBitWide; //计数位宽，16-16bit位宽，32-32bit位宽
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public Byte CounterPinMode; //计数器输入引脚模式，0-浮空输入，1-上拉输入，2-下拉输入
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}
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CNT_Init(Int32 DevHandle, Byte ChannelMask, ref CNT_CONFIG pConfig);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CNT_Start(Int32 DevHandle, Byte ChannelMask);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CNT_Stop(Int32 DevHandle, Byte ChannelMask);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CNT_SetValue(Int32 DevHandle, Byte ChannelMask, Int32[] pCntValues);
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[DllImport("USB2XXX.dll")]
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public static extern Int32 CNT_GetValue(Int32 DevHandle, Byte ChannelMask, Int32[] pCntValues);
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}
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}
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