Does Xilinx Spartan 6 support NAND flash?
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From: Gladys on 15 Jun 2010 05:49 According to the datasheet, The Spartan 6 family has Broad third-party SPI (up to x4) and NOR flash support Feature rich Xilinx Platform Flash with JTAG I don't quite understans if it supports NAND flash? I want to build and FPGA + ARM platform, each component has their own flash. How do you think, should I use just one NAND flash for both FPGA and processor access? Is NAND flash compatible with Xilinx Spartan 6? Anyone could help mepleas, Thank you. Gladys
From: Gabor on 15 Jun 2010 10:37
On Jun 15, 5:49 am, Gladys <yuhu...(a)gmail.com> wrote: > According to the datasheet, The Spartan 6 family has > > Broad third-party SPI (up to x4) and NOR flash support > Feature rich Xilinx Platform Flash with JTAG > > I don't quite understans if it supports NAND flash? > I want to build and FPGA + ARM platform, each component has their own > flash. > How do you think, should I use just one NAND flash for both FPGA and > processor access? > Is NAND flash compatible with Xilinx Spartan 6? > Anyone could help mepleas, Thank you. > > Gladys The point of SPI and NOR flash compatibility is that the FPGA is capable of configuring itself from these devices without any external glue logic required. It cannot do that with a NAND flash. The FPGA can certainly be programmed to use NAND flash for its storage requirements other than configuration. In that case you would still need some other device to configure the FPGA on power-up. Depending on the size of the non-configuration data required by the FPGA you may or may not want to hook it to the NAND flash if the processor has its own NAND flash interface. If the FPGA only needs a small amount of storage, you can use the same SPI flash that configures it, using the portion of the flash beyond the configuration bitstream. Regards, Gabor |