X86 CPLD扩展串口中断问题

[小小白桦树]

我在AMD lx800的板子上做了CE,板载的2串口是可以收发的，板子通过ISA总线CPLD外扩了6个串口。使用了共享中断10，在XP下是这样的。直接添加新硬件，找到设备后配置了地址空间就可以使用。
在CE下，因为采用共享中断 我在x86目录下的init.c中进行了如下配置

    // COM1 - 0x3F8-0x3FF, IRQ4
    // COM2 - 0x2F8-0x3FF, IRQ3
    // COM3 - 0x3E8-0x3EF, IRQ4
    // COM4 - 0x2E8-0x2EF, IRQ3
    //
    // IRQ3 - COM2 or COM4
    OALIntrStaticTranslate(SYSINTR_FIRMWARE + 3, 3);

    // IRQ4 - COM1 or COM3
    OALIntrStaticTranslate(SYSINTR_FIRMWARE + 4, 4);

	//add by me 
	OALIntrStaticTranslate(SYSINTR_FIRMWARE + 19, 10);
	OALIntrStaticTranslate(SYSINTR_FIRMWARE + 20, 10);
	OALIntrStaticTranslate(SYSINTR_FIRMWARE + 21, 10);
	OALIntrStaticTranslate(SYSINTR_FIRMWARE + 22, 10);
	OALIntrStaticTranslate(SYSINTR_FIRMWARE + 23, 10);
	

然后再注册表中进行了如下配置：

IF BSP_SERIAL3
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial3]
   "SysIntr"=dword:1A
   "IoBase"=dword:300
   "IoLen"=dword:8
   "DeviceArrayIndex"=dword:2
   "Prefix"="COM"
   "IClass"="{CC5195AC-BA49-48a0-BE17-DF6D1B0173DD}"
   "Dll"="Com16550.Dll"
   "Order"=dword:0
; Turn on follows for Installable ISR (isr16550 supporting SOFTWARE FIFO)
   "Irq"=dword:A
   "IsrDll"="isr16550.dll"
   "IsrHandler"="ISRHandler"

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial3\Unimodem]
   "Tsp"="Unimodem.dll"
   "DeviceType"=dword:0
   "FriendlyName"=LOC_FRIENDLYNAME_SERIAL3
   "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
ENDIF BSP_SERIAL3

; COM4
IF BSP_SERIAL4
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial4]
   "SysIntr"=dword:23
   "IoBase"=dword:308
   "IoLen"=dword:8
   "DeviceArrayIndex"=dword:3
   "Prefix"="COM"
   "IClass"="{CC5195AC-BA49-48a0-BE17-DF6D1B0173DD}"
   "Dll"="Com16550.Dll"
   "Order"=dword:0
; Turn on follows for Installable ISR (isr16550 supporting SOFTWARE FIFO)
   "Irq"=dword:A
   "IsrDll"="isr16550.dll"
   "IsrHandler"="ISRHandler"

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial4\Unimodem]
   "Tsp"="Unimodem.dll"
   "DeviceType"=dword:0
   "FriendlyName"=LOC_FRIENDLYNAME_SERIAL4
   "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
ENDIF BSP_SERIAL4



IF BSP_SERIAL5
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial5]
   "SysIntr"=dword:24
   "IoBase"=dword:310
   "IoLen"=dword:8
   "DeviceArrayIndex"=dword:4
   "Prefix"="COM"
   "IClass"="{CC5195AC-BA49-48a0-BE17-DF6D1B0173DD}"
   "Dll"="Com16550.Dll"
   "Order"=dword:0
; Turn on follows for Installable ISR (isr16550 supporting SOFTWARE FIFO)
   "Irq"=dword:A
   "IsrDll"="isr16550.dll"
   "IsrHandler"="ISRHandler"

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial5\Unimodem]
   "Tsp"="Unimodem.dll"
   "DeviceType"=dword:0
   ;"FriendlyName"=LOC_FRIENDLYNAME_SERIAL5
   "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
ENDIF BSP_SERIAL5

IF BSP_SERIAL6
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial6]
   "SysIntr"=dword:25
   "IoBase"=dword:318
   "IoLen"=dword:8
   "DeviceArrayIndex"=dword:5
   "Prefix"="COM"
   "IClass"="{CC5195AC-BA49-48a0-BE17-DF6D1B0173DD}"
   "Dll"="Com16550.Dll"
   "Order"=dword:0
; Turn on follows for Installable ISR (isr16550 supporting SOFTWARE FIFO)
   "Irq"=dword:A
   "IsrDll"="isr16550.dll"
   "IsrHandler"="ISRHandler"

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial6\Unimodem]
   "Tsp"="Unimodem.dll"
   "DeviceType"=dword:0
   ;"FriendlyName"=LOC_FRIENDLYNAME_SERIAL6
   "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
ENDIF BSP_SERIAL6


IF BSP_SERIAL7
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial7]
   "SysIntr"=dword:26
   "IoBase"=dword:320
   "IoLen"=dword:8
   "DeviceArrayIndex"=dword:6
   "Prefix"="COM"
   "IClass"="{CC5195AC-BA49-48a0-BE17-DF6D1B0173DD}"
   "Dll"="Com16550.Dll"
   "Order"=dword:0
; Turn on follows for Installable ISR (isr16550 supporting SOFTWARE FIFO)
   "Irq"=dword:A
   "IsrDll"="isr16550.dll"
   "IsrHandler"="ISRHandler"

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial7\Unimodem]
   "Tsp"="Unimodem.dll"
   "DeviceType"=dword:0
   ;"FriendlyName"=LOC_FRIENDLYNAME_SERIAL8
   "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
ENDIF BSP_SERIAL7


IF BSP_SERIAL8
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial8]
   "SysIntr"=dword:27
   "IoBase"=dword:328
   "IoLen"=dword:8
   "DeviceArrayIndex"=dword:7
   "Prefix"="COM"
   "IClass"="{CC5195AC-BA49-48a0-BE17-DF6D1B0173DD}"
   "Dll"="Com16550.Dll"
   "Order"=dword:0
; Turn on follows for Installable ISR (isr16550 supporting SOFTWARE FIFO)
   "Irq"=dword:A
   "IsrDll"="isr16550.dll"
   "IsrHandler"="ISRHandler"

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial8\Unimodem]
   "Tsp"="Unimodem.dll"
   "DeviceType"=dword:0
   ;"FriendlyName"=LOC_FRIENDLYNAME_SERIAL8
   "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
ENDIF BSP_SERIAL8

现在是8串口都可以creatfile成功。但是外扩的后5个串口只要一发数据就死机。
看到有很多朋友说ISA扩展的不可以共享中断，但是我通过CPLD扩展的驱动在CPLD中都实现了，和系统的接口都是16550兼容的UART。 坛子里有做过的吗？ 求指导

[sd2766088]

你好，我也遇到类似问题。
我们使用的vk3268扩展串口芯片，使用CSPI接口，也使用isr16550驱动
向串口发送数据时也很容易死机，读取好像没遇到问题，请问你们解决这个问题了么？
或者交流一下，谢谢了