So the final

config.tcl

generated has

FP_PIN_ORDER_CFG

defined by default if we use

config.tcl

as the configuration file. However, if we use

config.json

the default

FP_PIN_ORDER_CFG

is not set unless we manually set it. Is this parameter required to be set? I am wondering why one config file type sets some default parameters while the other doesn’t. This leads to a lot of confusion..

The caravel documentation (https://caravel-user-project.readthedocs.io/en/latest/) states “GPIO[0] thru GPIO[4] are preset and cannot be changed.” What does this precisely mean? Can these pins not be configured on power up but later can be modified through the firmware? Or they can never be modified?

Has anyone configured the io[0] to be used as mgmt_std_output and are able to write something to it? For me RTL simulation works but on GL simulation it is not writing to that pin. For e.g in the .c test file

reg_mprj_io_0 =  GPIO_MODE_MGMT_STD_OUTPUT;
// To start, set pin 0 to 1
reg_mprj_datal = 0x00000001;

and in the testbench

wire start = mprj_io[0];
initial begin

	wait(start == 1'b1);
	$display($time, " Saw bit 1: VCD starting");

	$dumpfile("la_test.vcd");
	$dumpvars(0, la_test_tb);
end

initial begin
   #10000000
   $display("Timeout");
   $finish;
end

I am always getting Timeout

How does caravel utilize

user_defines.v

do we need to include it somewhere?

Is there any documentation on how to submit a design to a shuttle? The site seems to imply that we must submit prebuilt GDS files (as opposed to having Efabless do hardening), and that generated files should be placed in the git repository. However, when I do that, github informs me that

this exceeds GitHub's file size limit of 100.00 MB

for files such as

*.gds

and

*.mag

. It then suggests I use lfs. Is there a document that describes the process? The one I've found stops at ensuring

make run-precheck

succeeds (which it doesn't, due to https://github.com/efabless/mpw_precheck/issues/178)

We are at 141 projects for MPW8. https://platform.efabless.com/shuttles/MPW-8 I've just taken a look and 40 projects are submitted from just a few people. Some of those projects are around 200 standard cells each. I'd like to politely request that in the future, if you want to try 10 different versions of something small, please put them all in one application.

does anyone know how I can do the spdx files for a schematic

having problems finding out how to add a comment to schematics

i looked at other people's submissions and they didn't do it

I'm also getting a klayout fom_density DRC error on tapeout even though it passed precheck

image.png

never mind it appears that i need ot make a new github repo according to other people

Ok I made a new github repo and it passed tapeout

very cool!

<!channel> Has the lottery system for MPW-8 started?

Check out Dinesh Annaya's @Dinesh A RISCduino design that uses a hierarachical design methodology and other interesting design concepts to achieve good PPA and timing closure using OpenROAD and OpenLane. https://theopenroadproject.org/implementation-of-riscduino-core-using-a-hierarchical-design-flow/ (edited)

For MPW-8, I have received one email said that the project has been accepted, and another email said that the project has not been selected. What happened? In my previous project, I only received one email,

accepted

or

not been select

.

@Matt Venn we have the auto-generated manifest spreadsheet and CSV files available now

@Matt Venn https://github.com/mattvenn/efabless_project_tool/issues/7

great

I will keep leaning on Efabless to enable an index of all the submitted projects so I can combine both into one search tool

@Mitch Bailey What do you mean? The checksums make sure that you actually have what you think you have?

Greetings, apologies if I didn’t read the relevant announcements carefully enough, but I still have some trivial questions regarding the submission process. When you get an “accepted for MPW-8” email, this means that your project is accepted for the lottery. Once the lottery takes place you get a second email informing you about the outcome of the lottery process? Q1: Is that right ? Q2: Will you get informed about the reasons why a project is not accepted in the first place? Q2+: Although submitting it a few weeks before the end of the submission period, I get the notification a few days after the final date, so there would have been no chance to correct any issues. It looks like this is the current proceedings, right ? Cheers, Tobias

@jeffdi / @Tim Edwards Are there likely to be any more free shuttles for sky130 or since Google have paid for the 6/7 they promised is it safe to assume the future of free sky130 shuttles is uncertain?

Check out key highlights from OpenROAD in 2022 and what's next here: Indira Iyer [2:03 PM] https://theopenroadproject.org/openroad-2022-year-end-review/

OpenROAD @OpenROAD_EDA projects are now available for summer internships via GSoC 23- https://lnkd.in/gHre-c3. Check them out -- we are now receiving proposals from qualified candidates. https://lnkd.in/g5cN7dHg

Hi Guys Any news on mpw-6 dies getting delivered? The efabless web says that the estimated delivery was in October 2022.

@Tholin has left the channel

For those who have mpw-3 chips, here are the back-end verification (soft connection, LVS, CVC[ERC]) results. These checks should be incorporated into the next precheck, so you’ll want to add an lvs_config.sh file and the relevant spice netlists for analog designs.

@Mitch Bailey @jeffdi My submission to MPW3 got accepted, but I did not receive chips yet and nor do I have any info about the shipment