参数资料
| 型号： | MCP2200-I/MQ |
| 厂商： | Microchip Technology |
| 文件页数： | 14/44页 |
| 文件大小： | 0K |
| 描述： | IC USB TO UART 20QFN |
| 特色产品： | MCP2200 USB-to-UART Serial Converter |
| 标准包装： | 73 |
| 特点： | USB 至 UART |
| 通道数： | 8 |
| FIFO's： | 256 字节 |
| 规程： | USB 2.0 |
| 电源电压： | 3 V ~ 5.5 V |
| 带自动流量控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VQFN 裸露焊盘 |
| 供应商设备封装： | 20-VQFN |
| 包装： | 管件 |
| 产品目录页面： | 684 (CN2011-ZH PDF) |
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2011 Microchip Technology Inc.
DS22228B-page 21
MCP2200
2.3.1.21
ReadPortValue
Function:
int SimpleIOClass::ReadPortValue()
EXAMPLE 2-21:
2.3.1.22
SelectDevice
Function:
int SimpleIOClass::SelectDevice(unsigned int uiDeviceNo)
EXAMPLE 2-22:
Summary:
Reads the GPIO port as digital input.
Description:
Reads the GPIO port and returns the value of the port. This provides a method to read all pins
simultaneously, instead of one-by-one. In case of an error, the returned value will be 0x8000.
Precondition:
Must be previously configured as an input via a ConfigureIO call.
VID and PID must be previously set via a call to InitMCP2200(VID, PID).
Parameters:
None.
Returns:
This function returns True if the transmission is successful and returns False if the transmission fails.
Remarks:
Pins configured for output return the current state of the port. Pins configured as input read as zero.
Summary:
Selects one of the active devices in the system.
Description:
The function is used to select one of the detected devices in the system as the “active device”.
Precondition:
At least one call to the InitMCP2200() is required in order to initiate a DLL search for the compatible
devices. Also, in order to know the actual number of devices in the system, call the
SimpleIOClass::IsConnected()
function. VID and PID must be previously set via a call to
InitMCP2200(VID, PID)
.
Parameters:
uiDeviceNo
- the ID of the device to be selected (can have a value between 0 and the number of
devices minus 1).
Returns:
This function returns ‘0’ in case of selection success, otherwise it will return:
E_WRONG_DEVICE_ID (-1) for a device ID that is out of range
E_INACTIVE_DEVICE (-2) for an inactive device.
Remarks:
Call the SimpleIOClass::IsConnected() prior to the call of this function in order to have the most
recent number of devices that are present in the system.
int rv;
rv = SimpleIOClass::ReadPortValue()
if (rv != 0x8000)
{
lblStatusBar->Text = “Success”;
}
else
lblStatusBar->Text = “Invalid command ” +
SimpleIOClass::LastError;
int iResult;
iResult = SimpleIOClass::SelectDevice(1)
if (iResult == 0)
{
lblStatusBar->Text = “Success”;
}
else
lblStatusBar->Text = “Error selecting device”;
相关PDF资料 |
PDF描述 |
|---|---|
| MCP2200T-I/MQ | IC USB 2.0 - UART 20QFN |
| MCP2210T-I/MQ | IC CONVERTER USB-PCI 20-QFN |
| MCP23008-E/ML | IC I/O EXPANDER I2C 8B 20QFN |
| MCP23016T-I/ML | IC I/O EXPANDER I2C 16B 28QFN |
| MCP23018T-E/SS | IC I/O EXPANDER I2C 16B 24SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2200-ISO | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB 2.0 to UART Protocol Converter with GPIO |
| MCP2200-ISS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB 2.0 to UART Protocol Converter with GPIO |
| MCP2200T-I/MQ | 功能描述:USB 接口集成电路 USB-to-UART Protocol Converter w/ GPIO RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MCP2200T-I/NQ | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB 2.0 to UART Protocol Converter with GPIO |
| MCP2200T-I/SO | 功能描述:USB 接口集成电路 USB-to-UART Protocol Converter w/ GPIO RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
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