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About iPAQ H3870
- From: Sung-Nan Yao <catboy at ms63 dot url dot com dot tw>
- To: ecos-discuss <ecos-discuss at sources dot redhat dot com>
- Date: Wed, 23 Apr 2003 17:24:51 +0800
- Subject: [ECOS] About iPAQ H3870
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?
Thanks.
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