OpenCores
URL https://opencores.org/ocsvn/spi_master_slave/spi_master_slave/trunk

Subversion Repositories spi_master_slave

[/] [spi_master_slave/] [trunk/] [syn/] [readme.txt] - Rev 18

Rev

Go to most recent revision | Details | Compare with Previous | Blame

Filtering Options

Clear current filter

Rev Log message Author Age Path
17 Master: v1.15.0136 [JD] Fixed assertions (PREFETCH >= 1) and minor comment bugs.
Slave: v2.02.0121 [JD] Changed minor comment bugs in the combinatorial fsm logic.
jdoin 3405d 03h /spi_master_slave/trunk/syn/readme.txt
12 SPI_SLAVE: v2.00.0110 [JD] FIX: CPHA bugs:
-- - redesigned core clocking to address all CPOL and CPHA configurations.
-- - added CHANGE_EDGE to the FSM register transfer logic, to have MISO change at opposite
-- clock phases from SHIFT_EDGE.
-- Removed global signal setting at the FSM, implementing exhaustive explicit signal attributions
-- for each state, to avoid reported inference problems in some synthesis engines.
-- Streamlined port names and indentation blocks.
jdoin 3412d 03h /spi_master_slave/trunk/syn/readme.txt
10 v1.11.0080: Changed sampling of MISO in spi_master.vhd (removed the input register).
Verified master+slave cores in silicon on a Spartan-6 FPGA at 100MHz, using Xilinx ISE 13.1 and a Digilent Atlys board. Project is included in trunk/syn/spi_master_atlys.xise.
jdoin 3424d 03h /spi_master_slave/trunk/syn/readme.txt
9 Updated verification data. jdoin 3427d 16h /spi_master_slave/trunk/syn/readme.txt
7 Updated code comments in VHDL files, added readme.txt files, updated work-in-progress version of the .doc core specification manual. jdoin 3428d 05h /spi_master_slave/trunk/syn/readme.txt
6 v1.10.0075: Changed clocking to use a single high-speed clock for the whole core, using clock enables to control slower timing.
Added SPI line clock divider from high-speed system clock.
Added pipeline delay logic to sync phase of SCK and MOSI, enabling very high operating frequencies.
Verified in silicon for SCK and MOSI at 50MHz, with very robust operation.
jdoin 3430d 02h /spi_master_slave/trunk/syn/readme.txt
5 Changed clocking to use a single high-speed clock for the whole core, using clock enables to control slower timing.
Added SPI line clock divider from high-speed system clock.
Added pipeline delay logic to sync phase of SCK and MOSI, enabling very high operating frequencies.
Verified in silicon for SCK and MOSI at 50MHz, with very robust operation.
jdoin 3430d 03h /spi_master_slave/trunk/syn/readme.txt

powered by: WebSVN 2.1.0

© copyright 1999-2020 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.