Free 8 bit micro for fpga

And while you are at it,

Make a c compiler for pico-Blaze, too.

Austin

It's been done...

By the way I was surprised that Lattice is really offering "open" source and not a free license to use on Lattice parts only.

"Gabor" schrieb im Newsbeitrag news: snipped-for-privacy@g44g2000cwa.googlegroups.com...

this was VERY clever from them. You understand it if you think about it. As they are releasing the sources they can actually prevent the use of it, so it makes more business for them to allow the use in non-Lattice silicon.

Antti

"austin" schrieb im Newsbeitrag news: snipped-for-privacy@g43g2000cwa.googlegroups.com...

well I made a Xilinx version of it ;) project files are at OpenForge

the syntesis report is at and of message, 0% utilization is nice to see feature !!! does it mean I can use infinite number of Mico8 in S3-1500? ok joking ;)

Antti

report for Mico8 (Xilinx Version)

Device utilization summary:

---------------------------

Selected Device : 3s1500fg676-5

Number of Slices: 130 out of 13312 0% Number of Slice Flip Flops: 71 out of 26624 0% Number of 4 input LUTs: 199 out of 26624 0% Number of bonded IOBs: 30 out of 487 6% Number of BRAMs: 1 out of 32 3% Number of GCLKs: 1 out of 8 12%

========================================================================= TIMING REPORT

Clock Information:

------------------

-----------------------------------+------------------------+-------+ Clock Signal | Clock buffer(FF name) | Load |

-----------------------------------+------------------------+-------+ clk | BUFGP | 84 |

-----------------------------------+------------------------+-------+

Timing Summary:

--------------- Speed Grade: -5

Minimum period: 7.568ns (Maximum Frequency: 132.130MHz) Minimum input arrival time before clock: 2.571ns Maximum output required time after clock: 6.306ns Maximum combinational path delay: No path found

Do you happen to have the same summary for a like-resourced PicoBlaze ?

Be interesting to compare the two.

-jg

I'm struggling to see that, when it appears you can use the design without distributing the source.

Cheers, Jon

you probably know that there are numerous other free vhdl micro models, particularly a PIC 16C5x. This one is nice because Microchip provides a free developpement tool for PIC's micros.

You can get the PIC 16C5x vhdl there:

And the PIC dev-tool (MPLAB) there:

Uxello

I get it:

"Who are Lattice?" "Lattice? Oh they released that free 8bit IP core" "Oh you mean free like the PPC402 and Pico/MicroBlaze IPs..." "No, the Lattice core is vendor independent...." "Oh..... Danish?" "No, just a cookie, I'm watching my diet"