[linuxsh-dev] SH4 hardware problem

[<bar...@ya...>]

Hi,

Firstly, my apologies for sending this mail if this is
not relevent to the mailing list. However, this is
quite urgent, sorry. Could any hardware people help me
out please?

I have a custom Sh4 (SH7750) board which has not been
able to run :(. Everything looks alright except that
the board boots up and sits at address 0x00000000 (the
data at this address in the flash memory is on the
data bus). The CPU seems to halt at this point with
the following board status,

- both main crystal and rtc crystal running
- both status pin at low level
- all NMI and IRL pins pulled up
- BREQ pulled up
- address sits at 0x00000000 and does not increments
- CS0 low 
- RD low
- all WE high

Is there anything else that I should check?? or any
setting that I could be missing??

Can anyone direct me to a right place??

All helps are greatly appreciated. 

Mark


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