参数资料
型号: MCP2200-I/MQ
厂商: Microchip Technology
文件页数: 5/44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:
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)
2011 Microchip Technology Inc.
DS22228B-page 13
MCP2200
2.3.1.2
ConfigureIO
Function:
bool SimpleIOClass::ConfigureIO (unsigned char IOMap)
EXAMPLE 2-2:
2.3.1.3
ConfigureIoDefaultOutput
Function:
bool SimpleIOClass::ConfigureIoDefaultOutput (unsigned char ucIoMap, unsigned char ucDefValue)
EXAMPLE 2-3:
Summary:
Configures the GPIO pins for Digital Input, Digital Output.
Description:
GPIO Pins can be configured as Digital Input, Digital Output.
Precondition:
VID and PID must be previously set via a call to InitMCP2200(VID, PID).
Parameters:
IOMap
- a byte that represents a bitmap of the GPIO configuration:
a bit set to ‘1’ will be a digital input
a bit set to ‘0’ will be a digital output
MSB –
LSB
GP7 GP6 GP5 GP4 GP3 GP2 GP1 GP0
Returns:
This function returns True if the transmission is successful and returns False if the transmission fails.
Remarks:
Error code is returned in LastError.
Summary:
Configures the IO pins for Digital Input, Digital Output and also the default output latch value.
Description:
IO Pins can be configured as Digital Input, Digital Output. The default output latch value is received
as a parameter.
Precondition:
VID and PID must be previously set via a call to InitMCP2200(VID, PID).
Parameters:
1.
ucIoMap
- a byte that represents a bitmap used to set the GPIOs as either input or output.
1’ configures GPIO as input
0’ configures GPIO as output
MSB –
LSB
GP7 GP6 GP5 GP4 GP3 GP2 GP1 GP0
2.
ucDefValue
- the default value that will be loaded to the output latch (affects only the pins configured as
outputs).
Returns:
This function returns True if the transmission is successful and returns False if the transmission fails.
Remarks:
Error code is returned in LastError.
if (SimpleIOClass::ConfigureIO(0xA5) == SUCCESS)
lblStatusBar->Text = “Success”;
else
lblStatusBar->Text = “Invalid command ” + SimpleIOClass::LastError;
if (SimpleIOClass::ConfigureIoDefaultOutput(IoMap, DefValue) == SUCCESS)
lblStatusBar->Text = “Success”;
else
lblStatusBar->Text = “Invalid command ” + SimpleIOClass::LastError;
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