[ECOS] About iPAQ H3870

Gary D. Thomas gary.thomas@mind.be
Fri Apr 25 15:33:00 GMT 2003


On Wed, 2003-04-23 at 11:24, Sung-Nan Yao wrote:
> Hi,
> After tracing the Linux code for H3800,
> I found the memory mapped I/O between the iPAQ H3800 and
> iPAQ H6000 is different.
> So I think some code in eCos won`t work on H3870.
> 
> For example,
> the RS232_ON is different between them.
> 
> In linux,
> #define H3800_ASIC1_GPIO_OUT    0x49001e68
> #define GPIO1_RS232_ON          (1  << 2)
> 
> In eCos,
> #define EGPIOBase               0x49000000
> #define EGPIO_BITSY_RS232_ON    (1  << 7)
> 
> In InitUART3 macro in eCos,it initializes the UART3.
> In the end of the macro,it turns on the RS232_ON by setting the EGPIOBase.
> But in the linux,it sets the H3800_ASIC1_GPIO_OUT.
> 
> So I change the EGPIOBase to 0x49001e68 and
> EGPIO_BITSY_RS232_ON to (1  << 7).
> In the test on my H3870,the Serial Port can work.
> 
> Does anyone find the problem or do the porting?

As far as I know, no one has ever tried to get eCos/RedBoot running on
the 3870.

-- 
Gary D. Thomas <gary.thomas@mind.be>


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