Bus sharing

[GauravK]

-Hi, wanted to know, how to go about having a parallel bus shared by microcontroller and fpga. 

-fpga and microcontroller both r/w from external sram over the same bus.

1. What should be the configs for microcontroller : fsmc in memory to memory with DMA2 burst?

2. Will fpga and microcontroller both be masters in the bus. how can writing only 1 device is handled?

please check 

[GauravK]

I'm reading about fsmc, parallelly wanted to know about the implementation from experts.  

Also the idea is to directly pass sram data to lcd (on a different interface) rather than having whole data in internal memory.

[Tesla DeLorean · Accepted solution]

The MCU isn't going to share or arbitrate the bus.

Put whatever logic you need to manage things in the FPGA

[GauravK]

Thanks. Does arbitration in FPGA double the I/O's requirement for parallel bus?

Please can I know any reference diagram

[GauravK]

Closing this thread.... Will try soon and come up with queries soon...