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diff --git a/doc/README.dk1c20 b/doc/README.dk1c20 deleted file mode 100644 index 3c0e41b..0000000 --- a/doc/README.dk1c20 +++ /dev/null @@ -1,153 +0,0 @@ - - Nios Development Kit - Cyclone Editions - - Last Update: January 2, 2004 -==================================================================== - -This file contains information regarding U-Boot and the Altera -Nios Development Kit, Cyclone Edition (DK-1C20). For general Nios -information see doc/README.nios. - -For those interested in contributing ... see HELP WANTED section -in doc/README.nios. - -Contents: - - 1. Files - 2. Memory Organization - 3. Examples - 4. Programming U-Boot into FLASH with GERMS - 5. Active Serial Memory Interface (ASMI) Support - -==================================================================== - -1. Files -========= - board/altera/dk1c20/* - include/configs/DK1C20.h - -2. Memory Organization -======================= - - -The heap is placed below the monitor (U-Boot code). - -Global data is placed below the heap. - -The stack is placed below global data (&grows down). - -3. Examples -============ - -The hello_world example works fine. The default load address -is 0x0100_0000 (the start of SDRAM). - - -4. Programming U-Boot into FLASH with GERMS -============================================ -The current version of the DK-1C20 port with the default -configuration settings occupies about 81 KBytes of flash. -A minimal configuration occupies less than 60 KByte (asmi -and network support disabled). - -To program U-Boot into the DK-1C20 flash using GERMS do the -following: - -1. From the command line, download U-Boot using the nios-run: - - $ nios-run -r u-boot.srec - -This takes about 45 seconds (GERMS is not very speedy here). -After u-boot is downloaded it will be executed. You should -see the following: - - U-Boot 1.0.0-pre (Oct 4 2003 - 07:39:24) - - CPU: Nios-32 Rev. 3.3 (0x3038) - Reg file size: 256 LO_LIMIT/HI_LIMIT: 2/14 - Board: Altera Nios 1C20 Development Kit - In: serial - Out: serial - Err: serial - ==> - - -2. Quit nios-run and start your terminal application (e.g. start -Hyperterminal or minicom). - -3. Download the u-boot code to RAM. When using Hyperterminal, do the -following: - - a. From the u-boot command prompt start a binary download to SRAM: - - ==> loadb 800000 - - b. Download u-boot.bin using kermit. - -4. From the U-Boot command prompt, erase flash 0x40000 to 0x5ffff: - - ==> erase 1:4-5 - -5. Copy the binary image from SRAM to flash: - - ==> cp.b 800000 40000 10000 - -U-Boot will now automatically start when the board is powered on or -reset using the Standard-32 configuration. To start U-Boot with the -Safe-32 configuration, enter the following GERMS command: - - + g 40000 - -5. Active Serial Memory Interface (ASMI) Support -================================================ -ASMI is fully supported in U-Boot. Please note that ASMI is supported -only on Cyclone devices. Do not expect ASMI to work with Stratix or -APEX devices. - - ************* IMPORTANT ************* - =================================================== - IN ORDER FOR THE NIOS ASMI TO OPERATE PROPERLY, THE - CYCLONE DEVICE MUST BE CONFIGURED USING JTAG OR ASMI. - -There are two techniques you can use to bootstrap the ASMI. The -first is to use the program_epcs utility that is part of Altera's SDK. -But I've found program_epcs to be slow and cumbersome at best. - -An undocumented alternative is to use the Quartus device programing -interface: - - 1. Select "Active Serial" mode. - - 2. Choose the xxx.pof file. For example, for the standard_32 - configuration use the "standard_32.pof" file. - - 3. Attach your ByteBlaster to J28. Make sure you have the - cable attached properly -- the orientation of J28 is - different than J24 (the JTAG header). On J28, pin 1 is on - the bottom row, left-most pin. - - 4. Press and hold the "Power-On Reset" switch (SW10). You will - see the green "Loading" and red "Error" LEDs (LED3 and LED4) - in the on state. - - 5. While holding down the "Power-On Reset" switch, start the - programming sequence. This only takes about 10 seconds. - - 6. After programming is complete, release the "Power-On Reset" - switch. The Cyclone device should now load its configuration - from the EPCS4 (U59). The green "User" LED (LED 1) should be - blinking if the device was successfully loaded via ASMI. - - 7. Remove the ByteBlaster cable. The cable must be removed to - allow the Nios ASMI access to the EPCS4 device. - -After you have successfully programmed a configuration into the -EPCS4, the ASMI will be used to load the Cyclone configuration -unless the "Force Safe" switch (SW9) is pressed. - -NOTE: To maximize the amount of space available for program use, -you can enable configuration compression in Quartus. With compression -enabled, the size of the standard_32 configuration data is -approximately 192 KBytes. - -To use the U-Boot ASMI commands, try typing "help asmi" at the -command prompt. The command "asmi info" will show the current -status of the ASMI. |