App IO00x - howto setup synchronal bus access?

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Tobias_Gerber
Employee
Employee
Need a 8 Bit access:
- change should be as synchronous as possible (within ns)
- today, I use 4 pins form port 0 and 4 from port 1, possible? (XMC4500 Relax Kit header X2)

Thanks for help.
BR Tobias
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2 Replies
Not applicable
Hi Tobias,

I'm not very sure about your application use case. However, XMC4000 offers EBU (External Bus Unit) interface which enables the access to various external memory devices.
The EBU001_Exmaple1 shows the configuration for SDRAM. Not sure whether it is suitable for your application?

Best regards,
Sophia
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Tobias_Gerber
Employee
Employee
It's possible with IO003 App - more or less.
I used P1.2 to P1.5 => Handle0
and P0.3 to P0.6 => Handle1

IO003_WritePort(IO003_Handle0,Value_low);
IO003_WritePort(IO003_Handle1,Value_high);



10ns within this 4 Bits in Handle0 or Handle1
but ~500ns between Handle0 to Handle1

BR Tobias
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