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标题: S3C2410的WINCE BSP添加串口支持 05 [打印本页]

作者: samwalton 时间: 2014-2-23 10:04 标题: S3C2410的WINCE BSP添加串口支持 05

在其后面添加：

case SYSINTR_SERIAL1: // Serial port1.
s2410INT->rSUBSRCPND = (INTSUB_RXD1 | INTSUB_TXD1 | INTSUB_ERR1);
s2410INT->rINTSUBMSK &= ~INTSUB_RXD1;
s2410INT->rINTSUBMSK &= ~INTSUB_TXD1;
s2410INT->rINTSUBMSK &= ~INTSUB_ERR1;
s2410INT->rSRCPND = BIT_UART1;
// S3C2410X Developer Notice (page 4) warns against writing a 1 to a 0 bit in the INTPND register.
if (s2410INT->rINTPND & BIT_UART1) s2410INT->rINTPND = BIT_UART1;
s2410INT->rINTMSK &= ~BIT_UART1;
break;

搜索：

void
OEMInterruptDisable(DWORD idInt) // @parm Interrupt ID to be disabled. See <t Interrupt ID's>

还是这一句：case SYSINTR_SERIAL:

在其后面添加：

case SYSINTR_SERIAL1:
s2410INT->rINTMSK |= BIT_UART1;
s2410INT->rINTSUBMSK |= INTSUB_RXD1;
s2410INT->rINTSUBMSK |= INTSUB_TXD1;
s2410INT->rINTSUBMSK |= INTSUB_ERR1;
break;

搜索：

void

OEMInterruptDone(DWORD idInt) // @parm Interrupt ID. See <t Interrupt ID's>

依旧找到case SYSINTR_SERIAL:

在其后面添加：
case SYSINTR_SERIAL1:

s2410INT->rINTMSK &= ~BIT_UART1;

s2410INT->rINTSUBMSK &= ~INTSUB_RXD1;

break;
6、打开armint.c文件。

搜索：else if(IntPendVal == INTSRC_UART0)

在其后面添加：

else if(IntPendVal == INTSRC_UART1)
{
SubIntPendVal = s2410INT->rSUBSRCPND;
// Note that we only mask the sub source interrupt - the serial driver will clear the
// sub source pending register.
//
if(SubIntPendVal & INTSUB_ERR1)
{
s2410INT->rINTSUBMSK |= INTSUB_ERR1;
}
else if(SubIntPendVal & INTSUB_RXD1)
{
s2410INT->rINTSUBMSK |= INTSUB_RXD1;
}
else if(SubIntPendVal & INTSUB_TXD1)
{
s2410INT->rINTSUBMSK |= INTSUB_TXD1;
}
else
{
return(SYSINTR_NOP);
}
// NOTE: Don't clear INTSRC:UART1 here - serial driver does that.
//
s2410INT->rINTMSK |= BIT_UART1;
if (s2410INT->rINTPND & BIT_UART1) s2410INT->rINTPND = BIT_UART1;
return(SYSINTR_SERIAL1);
}

7、打开smdk2410.cec文件，添加UART1这个feature。

搜索

ComponentType
(
Name ( "Serial" )
GUID ( {6563AD6C-E71C-11D4-B892-0050FC049781} )
MaxResolvedImpsAllowed( 999 )
Implementations
(
Implementation
(
Name ( "S32410 Serial UART" )

在其后面添加：

Implementation
(
Name ( "S32410 Serial UART1" )
GUID ( {7C4427A5-286C-4C7A-B687-4E3B364D079B} )
Description ( "Samsung S32410 serial UART controller." )
BSPPlatformDir ( "smdk2410" )
Version ( "5.0.0.0" )
Locale ( 0409 )
Vendor ( "Microsoft" )
Date ( "2003-1-13" )
SizeIsCPUDependent( 1 )
BuildMethods
(
BuildMethod
(
GUID ( {07DA2083-6261-4ED6-B5BB-70CF4D930D68} )
Step ( BSP )
CPU ( "armV4" )
CPU ( "armV4I" )
Action ( '#BUILD(SOURCES,"$(_WINCEROOT)PLATFORMSMDK2410driversserial")')
)
)
)

我感觉这个改不改没什么关系，反正网上有人这样改了，我也就改了，但是实际内核定制时中并没有添加上这个feature。
到这里，整个过程就结束了，耗费了我整整一天！其实改动量并不大，但是调试一次光编译就要15分钟，还要下载，烧写，启动～唉，没有仿真器就是麻烦。调了好多次没有成功，就是在注册表的中断号那儿出了问题！

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