Search found 29 matches

by Robert
Tue Jan 23, 2024 5:23 pm
Forum: EOS-S3
Topic: Is it possible to reach 72Mhz clocked design in eFPGA ?
Replies: 3
Views: 1661

Re: Is it possible to reach 72Mhz clocked design in eFPGA ?

We have implemented the simple USB interface for TinyFPGA where the IO run at 48MHz but this involved a hand placing the Flip-Flops etc.

So, 30MHz is a safe number.

Thanks
Robert
by Robert
Tue Jan 23, 2024 12:17 pm
Forum: EOS-S3
Topic: Is it possible to reach 72Mhz clocked design in eFPGA ?
Replies: 3
Views: 1661

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 shif...
by Robert
Fri Jan 19, 2024 3:33 pm
Forum: FPGAs
Topic: QL4009-1PF100C - Part Marking difference
Replies: 1
Views: 1989

Re: QL4009-1PF100C - Part Marking difference

Sorry for the delayed reply, I would need to check the date code marking to see if we still have record as this device. It would appear at first glance to have a date code of week 5 2002. The QL4009-1PF100C is a ViaLink device which is one time programmable. As this has custom marking I would sugges...
by Robert
Fri Jan 19, 2024 3:19 pm
Forum: EOS-S3
Topic: Creating high-speed FPGA design using Qorc-SDK
Replies: 2
Views: 1433

Re: Creating high-speed FPGA design using Qorc-SDK

What frequency external clock are you trying to use?

I would suggest bring the clock in on a FBIO pin and then instantiating a global clock buffer. I will look at creating an example if this is still an issue.
by Robert
Fri Jan 19, 2024 12:18 pm
Forum: QuickFeather
Topic: yosys: undefined symbol: ffi_type_double, version LIBFFI_BASE_7.0
Replies: 4
Views: 4461

Re: yosys: undefined symbol: ffi_type_double, version LIBFFI_BASE_7.0

You could try the latest release of the F4PGA group as they are maintaining Symbiflow

https://f4pga-examples.readthedocs.io/e ... ml#getting

They only support Ubuntu, Debian, Centos and Fedora so this may not fix the issue you have with Mint
by Robert
Fri Jan 19, 2024 11:43 am
Forum: Documentation
Topic: Looking for documentation about eFPGA macrocells (EOS-S3)
Replies: 3
Views: 1914

Re: Looking for documentation about eFPGA macrocells (EOS-S3)

The FPGA Logic Cell in EOS S3 can be fragmented into four pieces

[img][
PP3 .png
PP3 .png (23.93 KiB) Viewed 1708 times
/img]

The frag F is also referred to as b.
by Robert
Fri Jan 19, 2024 12:05 am
Forum: QuickFeather
Topic: Not able to programm a Sparkfun board
Replies: 3
Views: 35350

Re: Not able to programm a Sparkfun board

I believe that you need to update the FPGA firmware. I know that this is the case with QuickFeather board. I will test and update some additional information.
by Robert
Fri Jan 19, 2024 12:01 am
Forum: EOS-S3
Topic: Reading ADC Through eFPGA On The EOS-S3
Replies: 1
Views: 12549

Re: Reading ADC Through eFPGA On The EOS-S3

Unfortunately, the ADC needs to be configured by the M4-F core in EOS. The ADC was designed for measuring the voltage so, it fairly slow between 2.5mS to 25mS and only supports 12-bit. The operation of the ADC is as follows ADC Conversion Procedure: 1. Select which ADC channel input 0 or 1. a. Progr...
by Robert
Thu Jan 18, 2024 11:46 pm
Forum: FAQ
Topic: Does QP-PL84 works with QuickPro
Replies: 1
Views: 33703

Re: Does QP-PL84 works with QuickPro

Unfortunately, the pASIC1 family was EOL in Jan'2005 and we no-longer have a programmer that supports these devices. I believe that you would need the designer pro programmer We can guarantee the quality of if the devices would program successfully, but I found this details on the web https://www.we...
by Robert
Thu Jan 18, 2024 11:39 pm
Forum: Display Bridges
Topic: Replacement for NXP PTN3700
Replies: 1
Views: 33370

Re: Replacement for NXP PTN3700

Yes, the Bx5A1D is the right device for this application, it can bridge between your RGB interface and the LVDS display.
The full datasheet for the 2 channel LVDS device is available at https://www.quicklogic.com/wp-content/u ... _Sheet.pdf