@Mitch Bailey @Tim Edwards @Matt Venn I seeflash csb,flash clk ,flash io1 and flash io0? can we use flash with the caravel?I mean is there a flash controller already inbuilt which we can control using program in mcu?

I'm not sure what you mean by "controlling" the flash controller, but yes, the flash controller is built in and is a wishbone component with read/write access like everything else. You can access it independently if you first put executable code in memory, which frees up the SPI flash to be accessed independently of the program code (see the testbench program "sram_exec", which does this).

Does the board provided by efabless have connections to interface an external flash as u mentioned above @Tim Edwards ? I am assuming it will be same as file handling done with arduino etc with external flash ?

Do you understand the Caravel SoC architecture, and the board architecture? All of the information about both is open source and available online.

I plan to look into it in detail after 15 the submission but what I want to do is fetch a image data from external flash into the SoC and use the data to compute @Tim Edwards .later I use LA pins to send t Data from management area to user area which Soc reads from external flash

Would that be the same external flash as the program is stored on? I think that's doable. I haven't tried it. You should be able to simulate that setup.

I will try to simulate