Honored Contributor
Honored ContributorTO Daixiwen: thank you for your example! Unfortunately, it doesn't work, when i run my nios II project (hello world) on it. nios ide can validate the sram, but the program doesn't run properly (my uart doesn't send any characters...)
did you set 'data' and 'address' as shared signals in tristate_bridge (sopc builder)? TO kaz: i grounded address bit 0, because the sram-address-port addressSRAM(0) is connected with adressSFBus(1) and addressSRAM(20) is connected with adressSFBus(21). so i only discard addressSOPC(0:1). i hope it is clear now... difficult to explain for me without a picture. Altera wrote me this: When you create a SOPC component based on HDL file, you can’t use tri-state MM slave interface. sram K1B3216B2E can be used as popular sram. I have attached the component, you can use it. If you are using the standard example shipped with the kit, please check the pin assignments of fsd16~fsd31. There are several errors please correct them according the reference manual. The option bits address is 0x3fe0000 instead of 0x380000. Page 1 start address is 0x380000. Please refer to the attached screen shot to program the flash. reto's opinion and questions: - to the pin assignment: does anybody know where i can found the correct pinout? i checkt it several times with schematic and reference guide, but didn't found any error. - i can't set options address on 0x03fe0000, because its an cfi_64MB, not a cfi_512MB, so address range is smaller than 0x03fe0000. what's the correct options address? thank you for any help, i'm loosing my patient bit by bit! reto
