ARM平台设备WinCE下UART配置

UART串口作为最为常用的工业设备接口之一被广泛且大量的应用，本文就基于Toradex ARM平台设备为例介绍WinCE下UART配置。

我们采用Colibri ARM核心板产品搭配Colibri开发板来进行测试，OS为Toradex官方发布的最新版WinCE，其中Colibri系列默认定义了三个串口，UART A, UART B和UART C，其中UART A用作调试串口使用，下面就分别针对不同SoC产品进行说明。

1).基于NXP i.MX6Solo/DualLite的Colibri i.MX6产品

系统默认定义COM 1 – UART A (调试串口，全功能)；COM 2 – UART B (支持Flow control)；COM 3 – UART C；另外还支持额外的两个串口UART D和UART E，默认没有使能；所有串口默认均为DTE模式。

./使能UART D方法，请在注册表中添加下面内容并保存

[HKEY_LOCAL_MACHINEDriversBuiltInCOM4]

'Order'=dword:00000002

'IoLen'=dword:000000d4

'IoBase'=dword:021f0000

'Index'=dword:00000004

'DeviceArrayIndex'=dword:00000003

'Prefix'='COM'

'Dll'='csp_serial.dll'

[HKEY_LOCAL_MACHINEDriversBuiltInCOM4Unimodem]

'DevConfig'=hex:10,00,00,00,05,00,00,00,10,01,00,00,00,4B,00,00,00,00,08,00,00,00,00,00,00

'DeviceType'=dword:00000000

'Tsp'='Unimodem.dll'

'FriendlyName'='COM4 UNIMODEM'

[HKEY_LOCAL_MACHINEDriversBuiltInCOM4Pinout_Default]

'colibripin_165'='altfn=3'

'colibripin_167'='altfn=3'

./使能UART E方法，请在注册表中添加下面内容并保存

[HKEY_LOCAL_MACHINEDriversBuiltInCOM5]

'Order'=dword:00000002

'IoLen'=dword:000000d4

'IoBase'=dword:021f4000

'Index'=dword:00000005

'DeviceArrayIndex'=dword:00000004

'Prefix'='COM'

'Dll'='csp_serial.dll'

[HKEY_LOCAL_MACHINEDriversBuiltInCOM5Unimodem]

'DevConfig'=hex:10,00,00,00,05,00,00,00,10,01,00,00,00,4B,00,00,00,00,08,00,00,00,00,00,00

'DeviceType'=dword:00000000

'Tsp'='Unimodem.dll'

'FriendlyName'='COM5 UNIMODEM'

[HKEY_LOCAL_MACHINEDriversBuiltInCOM5Pinout_Default]

'colibripin_169'='altfn=3'

'colibripin_171'='altfn=3'

2).基于NXP Vybrid的Colibri VF50/VF61产品

系统默认定义COM 1 – UART A (调试串口，全功能控制引脚需使用GPIO)；COM 2 – UART B (支持Flow control)；COM 3 – UART C；另外还支持额外的两个串口UART D和UART E，默认没有使能。

./使能UART D方法，请在注册表中添加下面内容并保存

[HKEY_LOCAL_MACHINEDriversBuiltInUARTD]

'DeviceArrayIndex'=dword:00000003

'Index'=dword:00000004

'Prefix'='COM'

'Dll'='vybrid_serial.dll'

'Order'=dword:00000001

'TXPIN'=dword:00000017

'TXAF'=dword:00000006

'RXPIN'=dword:0000001f

'RXAF'=dword:00000006

./使能UART E方法，由于管脚和Colibir默认定义的SDHC接口冲突，因此需先关闭SDHC功能，请在注册表中修改下面内容并保存

[HKEY_LOCAL_MACHINEDriversBuiltInESDHC]

'Dll'='_esdhc.dll'

[HKEY_LOCAL_MACHINEDriversBuiltInUARTE]

'DeviceArrayIndex'=dword:00000004

'Index'=dword:00000005

'Prefix'='COM'

'Dll'='vybrid_serial.dll'

'Order'=dword:00000001

'TXPIN'=dword:00000033

'TXAF'=dword:00000004

'RXPIN'=dword:00000035

'RXAF'=dword:00000004

3).基于nVidia Tegra的Colibri T20/T30产品

系统默认定义COM 1 – UART A (UART 1,调试串口,全功能串口)；COM 2 – UART B (UART 4,支持Flow control)；COM 3 – IrDA (WinCE6)或UART C (WEC7)(UART2)；另外还支持额外的两个串口UART 3和UART 5，默认没有使能。

./ WinCE6下COM 3设置为普通串口方法，注册表如下修改

-----------------------------

[HKLMDriversBuiltInSerial3]

' IrConnected'=dword:00000000

[HKLMCommIRSIR]

'ImagePath '='_irsir.dll '

./ UART3 Pin脚定义

SODIMM Pin 115 (GMI_A2) – UART3 TxD

SODIMM Pin 117(GMI_A3) – UART3 RxD

./使能UART 3方法，请在注册表中添加下面内容并保存

-----------------------------

[HKEY_LOCAL_MACHINEDriversBuiltInSerial4]

'DeviceArrayIndex'=dword:00000083

'Prefix'='COM'

'Dll'='libnvuart.dll'

'Order'=dword:00000004

'Index'=dword:00000004

'IClass'=hex(7):7b,00,41,00,33,00,32,00,39,00,34,00,32,00,42,00,37,00,2d,00,39,00,32,00,30,

00,43,00,2d,00,34,00,38,00,36,00,62,00,2d,00,42,00,30,00,45,00,36,00,2d,00,

39,00,32,00,41,00,37,00,30,00,32,00,41,00,39,00,39,00,42,00,33,00,35,00,7d,

00,00,00,00,00

[HKEY_LOCAL_MACHINEDriversBuiltInSerial4Unimodem]

'Tsp'='Unimodem.dll'

'DeviceType'=dword:00000000

'FriendlyName'='Serial on COM4:'

'DevConfig'=hex:10,00,00,00,05,00,00,00,10,01,00,00,00,4b,00,00,00,00,08,00,00,00,00,00,00

./UART5 Pin脚定义

SODIMM Pin 192 – UART5 TxD

SODIMM Pin 49 – UART5 RxD

./使能UART 5方法，由于管脚和Colibir默认定义的SDIO接口冲突，因此需先关闭SDIO功能，请在注册表中修改下面内容并保存

[HKEY_LOCAL_MACHINEDriversBuiltInSDIO]

'Dll'='_libnvsdio.dll'

[HKEY_LOCAL_MACHINEDriversBuiltInSerial5]

'DeviceArrayIndex'=dword:00000084

'Prefix'='COM'

'Dll'='libnvuart.dll'

'Order'=dword:00000004

'Index'=dword:00000005

'IClass'=hex(7):7b,00,41,00,33,00,32,00,39,00,34,00,32,00,42,00,37,00,2d,00,39,00,32,00,30,

00,43,00,2d,00,34,00,38,00,36,00,62,00,2d,00,42,00,30,00,45,00,36,00,2d,00,

39,00,32,00,41,00,37,00,30,00,32,00,41,00,39,00,39,00,42,00,33,00,35,00,7d,

00,00,00,00,00

[HKEY_LOCAL_MACHINEDriversBuiltInSerial5Unimodem]

'Tsp'='Unimodem.dll'

'DeviceType'=dword:00000000

'FriendlyName'='Serial on COM5:'

'DevConfig'=hex:10,00,00,00,05,00,00,00,10,01,00,00,00,4b,00,00,00,00,08,00,00,00,00,00,00