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Synchronous Burst Mode

Question asked by Dasnavis Sabiya on Sep 30, 2015
Latest reply on Sep 30, 2015 by igorpadykov

Hello,

 

I am access FPGA connected over EIM interface in iMX6 Sabre-SDB.

The EIM registers are configured as follows:

EIM_CSnGCR1 : 1191503f

EIM_CSnGCR2 : 1002

EIM_CSnRCR1 : 7101111

EIM_CSnRCR2 : 1c

EIM_CSnWCR1 : 6209249

EIM_CSnWCR2 : 0

 

When i tried to long read (using readl), burst read is not happening. Instead sequential reads are happening. In short, the address gets incremented and sequential 16-bit read occurs.

 

I observed this behavior using logic analyzer.

 

Please let me know, if the configuration above is correct(for synchronous burst read in multiplexed mode) ?

What else am i missing?

Is there any sample code for synchronous burst read?

 

Thank you in advance.

 

Regards,

Dasnavis Sabiya

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