| Rev |
Log message |
Author |
Age |
Path |
| 37 |
README.txt added, describing the installation and set-up processes. Also describing to use the FAQ or forum when you have problems and finally to read minsoc.pdf (the documentation) to understand the system after everything works, to know what to do next.
Clean-up of sw/utils, removing unused sources and files.
Update of sw/drivers/eth.c, direct casting to avoid compile warnings.
FAQ extended and with more links to the threads giving the solutions.
Synthesis examples inform that the firmware tweak for Spartan3E Starter Kit using Ethernet only works for system version up to 35.
minsoc.pdf and webpage now uses FPGA generic and specific codes instead of FPGA independent and dependent codes, because it suits it better. |
rfajardo |
4925d 08h |
/minsoc |
| 36 |
utils: -adding a 32 to 8 bit Wishbone bridge to connect 8 bit modules to the MinSoC interconnect.
-adding a Linux driver for parallel cables for the adv_jtag_bridge. It circumvents the necessity of privilege to run adv_jtag_bridge with cables xpc3 and xess.
sw/support: support library has been made completely standalone. That means, it is now independent from uClib and/or newlib. Thanks to Wojciech A. Koszek for his contribution on this.
sw/drivers: a driver library has been included, which supply drivers for the OpenRISC timer; and for UART, Ethernet, I2C, and CAN modules from OpenCores.
sw/uart and sw/eth: they don't provide code to control the UART and Ethernet controllers anymore. They use the drivers library instead.
Documentation:
-FAQ extended:
-table of contents
-explanation of how to use the 32 to 8 bit Wishbone bridge
-how to make adv_jtag_bridge work without privilege requirement for xess or xpc3
-explanation of locking problem of xpc_usb cable
-explanation of what to do if the cable is built on-board
-INSTALL:
-patching of gdb only required if version is 6.8, explanation on FAQ now.
-HOWTO:
-instruct to compile drivers library
-remove line numbers information on what to edit, better leave it to be found only by the informed context.
-adv_jtag_bridge execution now without 'sudo'. Note included that 'sudo' is required for Linux and xess or xpc3. Reference to FAQ to avoid this requirement. |
rfajardo |
4926d 03h |
/minsoc |
| 35 |
minsoc.pdf: -adjusting the date on the page header of MinSoC documentation. It was correct on the front and revision pages, now header adjusted accordingly. |
rfajardo |
4930d 21h |
/minsoc |
| 34 |
start_server changed: '-t' option of adv_jtag_bridge for vpi connection on simulation removed. or1200_v3 will not pass on CPU self test.
FAQ completed with asked questions since Februrary 2010.
INSTALL informs bsdl files only have to be copied to home directory for Xilinx devices.
synthesis_examples title includes Minimal OpenRISC System on Chip. |
rfajardo |
4940d 06h |
/minsoc |
| 33 |
Start-up Starter, included in the MinSoC top file, has been updated to three-phase instruction output; instruction assertion, acknowledge assertion, and next instruction with acknowledge deassertion.
Previously it was two-phase with next instruction, instruction assertion and acknowledge assertion together, and acknowledge deassertion.
That is required by the new Wishbone master interface used by OpenRISC release 3. |
rfajardo |
4948d 07h |
/minsoc |
| 32 |
Documentation revision 1.1, thanks to Wojciech A. Koszek for many comments on it.
Also updating howto, splitint it in INSTALL, HOWTO, FAQ and synthesis_examples, so it should be more clear now what to do when and not to try too much when you don't need. Like everyone was trying to debug the simulation but didn't even test the regular simulation before. Again thanks to Wojciech A. Koszek for his view on this matter. |
rfajardo |
4962d 05h |
/minsoc |
| 31 |
Adaption to or1200_r3. It is still important to change or1200_defines.v:
-`define OR1200_BOOT_ADR 32'hf0000100 to `define OR1200_BOOT_ADR 32'h00000100 |
rfajardo |
5017d 12h |
/minsoc |
| 30 |
minsoc SoC documentation had 2 small typo corrections. Performance penalty due to addition of register addresses was a wrong assumption. On project description "is composed by" -> "consists of". Thanks to Wojciech A. Koszek.
howto, at some places the howto did not tell the path from the files being talked about. I tried to always specify the path for every commented file.
Scripts for running the simulation called bash instead of sh. For compatibility reasons sh is now used, this should affect noone. Scripts do not use bash specific commands and generally every UNIX like computer has sh. Thanks again to Wojciech A. Koszek, who adapted that to port it to FreeBSD. |
rfajardo |
5060d 11h |
/minsoc |
| 29 |
Finishing the howto for Spartan3E Starter Kit with Ethernet. Last hint, change uart baudrate to 9600 to avoid the baudrate skew problem due to truncation.
Following the howto to implement Ethernet on Spartan3E Starter Kit will work flawlessly now. |
rfajardo |
5102d 10h |
/minsoc |
| 28 |
1) Period calculations through 1/freq on testbench use now a numerator definition in order to extract nano seconds of the divisions. Previously the number 1e9 was being repeatedly typed as numerator, now FREQ_NUM_FOR_NS is used.
2) There is a possibility of enabling the GENERIC_CLOCK_DIVISION for the testbench, so that you can test the outcome of different system clock inputs and internal clock adjustments. To do so, NO_CLOCK_DIVISION definition of minsoc_bench_defines.v has to be commented out.
-This also requested the initialization of the internal registers clk_int and clock_divisor of the minsoc_clock_manager.v, this is made by the testbench in case the NO_CLOCK_DIVISION definition is NOT defined.
3) Howto part of implementing Ethernet for the Spartan3E Starter Kit has been completely described. (Chapter 7, subitem 3) |
rfajardo |
5103d 06h |
/minsoc |
| 27 |
Simulation library fpga_memory_primitives.v had an issue with its lpm_ram_dq module, which did not output its data.
The data was being output to doq instead of q, the declared output. doq was also not defined anywhere else.
Icarus Verilog did not detect this, because Verilog-2001 allows internal wires to be used without being defined. To detect this errors, one can define "`default_nettype none". After doing this, Icarus Verilog detected that error and nothing else.
doq changed to q, error corrected. |
rfajardo |
5118d 06h |
/minsoc |
| 26 |
On version 34 of the Advanced Debug System the signal debug_tdo_o from the altera_virtual_jtag has changed to debug_tdo_i.
This commit adapts minsoc_top.v accordingly. |
rfajardo |
5127d 19h |
/minsoc |
| 25 |
Updated the howto document to adapt minsoc to a new update of the Advanced Debug System.
-Compilation of adv_jtag_bridge needs a Makefile adjustment.
-Simulation and Implementation have to remove a definition on the adbg_defines.v file.
Both adjustments simply removes the new JSP (JTAG Serial Port), which has been included in the new release of the Advanced Debug System. |
rfajardo |
5132d 11h |
/minsoc |
| 24 |
E-mail in the documentation has been corrected. |
rfajardo |
5195d 23h |
/minsoc |
| 23 |
Paragraph minor changes, used in announcement and double checked. |
rfajardo |
5200d 04h |
/minsoc |
| 22 |
Status progress and howto pdf documents were not commited, there now. |
rfajardo |
5200d 05h |
/minsoc |
| 21 |
Including the first draft project documentation. How to and status progress docs are now separate from documentation. |
rfajardo |
5200d 06h |
/minsoc |
| 20 |
minsoc_defines.v had a semicolon at the end of the two reset polarity definitions.
minsoc_top had a signal array for two different signals which was for backward compatibility. The compatible debugging module is so old that there is no reason for keeping it.
Documentation has been updated to better explain how to use the definitions files, minsoc_defines.v and or1200_defines.v. An example for Altera devices has been added too. |
rfajardo |
5207d 07h |
/minsoc |
| 19 |
Documentation update. How To: 7) Examples:
-Spartan 3E Starter Kit no Ethernet has been already tested and is known to work.
-Spartan 3E Starter Kit with Ethernet not yet.
-change of sw/support/orp.ld cannot be done by only commenting and uncommenting line, the instruction, documentation line, which said so has been removed.
-Further possibilities -> Further area optimization possibilities. |
rfajardo |
5238d 11h |
/minsoc |
| 18 |
Deprecated comments removed from the file listing files. |
rfajardo |
5270d 11h |
/minsoc |
| 17 |
Ethernet testbench speed penalty solved. Now Ethernet of testbench and minsoc can be enabled by only uncommenting `define ETHERNET on minsoc_defines.v.
send_mac, get_mac and uart_send tasks have been included/improved. Also a testbench, which works for both included firmwares is added. (eth and uart)
If ETHERNET is defined for the SoC, both firmwares will complete successfully. If not, the eth firmware will stall when trying to access the Ethernet module. |
rfajardo |
5272d 06h |
/minsoc |
| 16 |
Further initialization improvement of non-used signals, setting interrupt signals to 0 if module is not used. |
rfajardo |
5277d 10h |
/minsoc |
| 15 |
Including verified pinout for external spi flash on spartan3a dsp kit to its correspondent ucf constraint file. |
rfajardo |
5278d 03h |
/minsoc |
| 14 |
Wishbone error signal of Ethernet core was not tied to ground if Ethernet was disabled. Solved now. |
rfajardo |
5286d 10h |
/minsoc |
| 13 |
Updating spartan3e_starter_kit.ucf so that it does not deliver errors on mapping. Moreover it has been changed to off the shelf only have uart support. Ethernet support and generic JTAG can be added by uncommenting the corresponding lines. |
rfajardo |
5287d 11h |
/minsoc |
| 12 |
1) spi_top.v:
-TX_NEGEDGE bug reported and recommended solution by Blaise Gassend. (Thank you)
2) minsoc howto extended to:
-synthesis of minsoc for Spartan3E Starter Kit with Ethernet
3) spartan3e_starter_kit.ucf changed:
-it had problems regarding pin definitions and IO logic types for mapping and place&route. Working flawless now. |
rfajardo |
5290d 02h |
/minsoc |
| 11 |
External interrupt processing was being run multiple times because:
-external level interrupts have to be cleared
-internal interrupt status register has to be cleared
Since internal interrupt status register was being cleared before external level interrupts clearance, these internal interrupt status was being overwritten inbetween.
Solution:
-move status register reset to end of interrupt handler instead of beginning.
Testbench signal uart_srx initialized now. |
rfajardo |
5297d 06h |
/minsoc |
| 10 |
Added a file containing models for each FPGA memory instances used in or1200. The file is in bench/verilog/sim_lib/fpga_memory_primitives.v.
With it, people who change the or1200_defines.v inside of the project structure will still be able to simulate, using house-made models, not from manufacturers.
minsoc_bench.v had to be extended by the task, init_fpga_memory, to initialize the dual or two port memories instances of or1200. This has to be done based on the type of memory used, so many different instantiations based on definitions. Somehow or1200 expects all memory values to be 0 upon start, so this is necessary. |
rfajardo |
5311d 05h |
/minsoc |
| 9 |
Tiny change to testbench gain:
-uart_srx is now reg for future testbench serial input to SoC. |
rfajardo |
5313d 04h |
/minsoc |
| 8 |
Cosmetic changes to minsoc_bench.v:
-reset and clock initialization are included into the main initial block, it had an own block before |
rfajardo |
5313d 04h |
/minsoc |
