| Rev |
Log message |
Author |
Age |
Path |
| 94 |
BIG update: core now supports different clock speed for the multiplier core, so more performance is posible. currently this version is working in simulation and is being tested on hardware. Changes in this update include:
- changed RAM and memory to support different clocks
- new FIFO that supports dual clock (slightly modified version of generic_fifo's on OpenCores.org)
- parameter C_FIFO_DEPTH is now replace by C_FIFO_AW (address width of the fifo pointers)
- added logic for control signals to cross from one clock domain to another
- updated testbenches and interfaces accordingly
- added log of synthesis of the 2 new fifo's for Xilinx |
JonasDC |
4095d 18h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 90 |
reverted changes from previous revision, updated AXI version with testbench |
JonasDC |
4101d 17h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 89 |
updated vhdl files so now different clock frequencies are posible for the core and bus interface. |
JonasDC |
4165d 15h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 84 |
AXI-Lite interface updated, now tested and verified on Xilinx FPGA
renamed C_DEVICE parameter, because of conflicts with restricted parameter in xilinx XPS |
JonasDC |
4173d 01h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 75 |
made rw_address a vector of a fixed width |
JonasDC |
4210d 00h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 74 |
removed C_NR_OP and C_NR_M from the generic of mod_sim_exp_core and made them contstants, because currently no other values than 4 an 2 resp. are supported/can be implemented. |
JonasDC |
4212d 21h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 69 |
big update, the mod_sim_exp core now has a selectable ram structure. a generic ram that should be usable in any fpga, a asymmetric ram that is usable for some devices of altera or xilinx and uses less resources. |
JonasDC |
4214d 20h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 63 |
now using a generic description of the ram for the memory. the core now should synthesize for al fpga's, no device specific code anymore. tested and synthesizes for altera and xilinx |
JonasDC |
4222d 21h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 45 |
chance run_auto port or mod_sim_exp_core to exp_m |
JonasDC |
4309d 21h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 43 |
made the core parameters generics |
JonasDC |
4313d 15h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 39 |
changed files to remove warnings from synthesis
last cell logic is simplified because of redundant logic |
JonasDC |
4328d 14h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 37 |
changed names of some generics of the multiplier.
moved the parameters for the core to the package of the core
testbench now uses this parameters to adapt to different bit widths
and new systolic pipeline now supports split or single pipeline |
JonasDC |
4332d 17h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 36 |
found bug in new pipeline structure, now working properly. (tested in sim)
mod_sim_exp_core uses new flexible pipeline as default. |
JonasDC |
4333d 13h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 34 |
operand memory now supports custom operand widths, the internal memory stays the fixed 1536 bit, but the bus width is now adjustable to any size below. |
JonasDC |
4333d 16h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 33 |
default pipeline changed to old version, there seems to be an occasional error with new version. |
JonasDC |
4333d 19h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 32 |
new systolic pipeline structure now has split pipeline support, tested and verified in simulation. the core now uses this pipeline by default. |
JonasDC |
4333d 20h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 24 |
changed names of top-level module to mod_sim_exp_core |
JonasDC |
4338d 01h |
/mod_sim_exp/trunk/rtl/vhdl/core/mod_sim_exp_core.vhd |
| 3 |
updated vhdl sources with new header according to OC design rules and formated code
added makefile and simulation input file for testbench simulation |
JonasDC |
4349d 16h |
/mod_sim_exp/trunk/rtl/vhdl/core/multiplier_core.vhd |
| 2 |
First version of VHDL source(working), still contains xilinx primitives and needs to be updated to the OpenCores design rules.. |
JonasDC |
4353d 22h |
/mod_sim_exp/trunk/rtl/vhdl/core/multiplier_core.vhd |
