Search found 18 matches
- Wed Mar 13, 2024 4:03 pm
- Forum: SymbiFlow
- Topic: Can't find symbiflow command option documentation
- Replies: 0
- Views: 4932
Can't find symbiflow command option documentation
With qf_apps, I'm launching synthesis and place&route with a Makefile named fpga/rtl/Makefile.symbiflow This makefile launch some commands that begin by `symbiflow_*`: - symbiflow_route - symbiflow_place - symbiflow_pack - ... Where can I find options documentation for this commands ? And is the...
- Wed Mar 13, 2024 3:55 pm
- Forum: SymbiFlow
- Topic: Displaying place&route result
- Replies: 1
- Views: 31115
Re: Displaying place&route result
On the website of VPR project we can view some routing animation. Is it possible to do same thinks with EOS_S3 routing ?
- Tue Jan 23, 2024 3:06 pm
- Forum: EOS-S3
- Topic: Is it possible to reach 72Mhz clocked design in eFPGA ?
- Replies: 3
- Views: 2789
Re: Is it possible to reach 72Mhz clocked design in eFPGA ?
Unfortunately, The EOS S3 FPGA is designed for low power and is not able to achieve 72MHz performance. This is why the FPGA clocks are separated from the main Cortex clock M4-F Realistically the performance is limited to around the frequency you are seeing. We have done some highly tuned simple shi...
- Sun Jan 21, 2024 8:11 pm
- Forum: EOS-S3
- Topic: Is it possible to reach 72Mhz clocked design in eFPGA ?
- Replies: 3
- Views: 2789
Is it possible to reach 72Mhz clocked design in eFPGA ?
I saw in datasheet that FPGA clock domain can be configured up to 72Mhz. But If I synthesize the helloworldhw example I get a max frequency of 27.8Mhz.
In route.log :
Thanks
In route.log :
Is it possible to increase this performances ?Final critical path delay (least slack): 35.8776 ns, Fmax: 27.8725 MHz
Thanks
- Fri Jan 19, 2024 9:24 am
- Forum: QuickFeather
- Topic: yosys: undefined symbol: ffi_type_double, version LIBFFI_BASE_7.0
- Replies: 4
- Views: 5563
Re: yosys: undefined symbol: ffi_type_double, version LIBFFI_BASE_7.0
Is there a new version ?Unfortunately, this version of Symbiflow has only been tested on Ubuntu 20_04. I am glad that you have found a fix for your Linux distribution.
Will it be patched ?
- Fri Jan 19, 2024 7:51 am
- Forum: EOS-S3
- Topic: What is the engraving finesse of the OES-S3?
- Replies: 0
- Views: 3530
What is the engraving finesse of the OES-S3?
I can't find it under datasheet.
Is it also possible to find out which foundry is used ?
Thanks
Is it also possible to find out which foundry is used ?
Thanks
- Thu Jan 18, 2024 10:33 am
- Forum: General Discussion
- Topic: Is this forum alive ?
- Replies: 1
- Views: 4020
Is this forum alive ?
Hello,
This forum seems to be asleep. Most of question and answer are old and no one respond to new asked question.
Is there another platform for question about quickfeather and its symbiflow toolchain ?
Thanks
This forum seems to be asleep. Most of question and answer are old and no one respond to new asked question.
Is there another platform for question about quickfeather and its symbiflow toolchain ?
Thanks
- Wed Jan 17, 2024 6:16 am
- Forum: Documentation
- Topic: Looking for documentation about eFPGA macrocells (EOS-S3)
- Replies: 3
- Views: 5336
Re: Looking for documentation about eFPGA macrocells (EOS-S3)
I can't find eFPGA mapping of macrocells in this datasheet or this.
- Mon Jan 15, 2024 9:03 pm
- Forum: Documentation
- Topic: Looking for documentation about eFPGA macrocells (EOS-S3)
- Replies: 3
- Views: 5336
Looking for documentation about eFPGA macrocells (EOS-S3)
Hello, When I launch synthesis with QORC commands I get log files that give occupancy statistics in file «/opt/qorc-sdk/qf_apps/qf_helloworldhw/fpga/rtl/build/helloworldfpga_synth.log» (for helloworld app) : 13. Printing statistics. === helloworldfpga === Number of wires: 1055 Number of wire bits: 1...
- Wed Dec 06, 2023 9:08 pm
- Forum: QuickFeather
- Topic: yosys: undefined symbol: ffi_type_double, version LIBFFI_BASE_7.0
- Replies: 4
- Views: 5563
Re: yosys: undefined symbol: ffi_type_double, version LIBFFI_BASE_7.0
I found a workaround by deleting libffi.so.7 link in conda/lib directory : $ cd /opt/qorc-sdk/fpga_toolchain_install/v1.3.1/conda/bin/./../lib/ $ mv libffi.so.7 libffi.so.7.legacy After that, I can launch yosys without problem : $ which yosys /opt/qorc-sdk/fpga_toolchain_install/v1.3.1/conda/bin/yos...