[hpsdr] FPGA

[dlwaddel at netzero.net]

Thanks for the reply, Helmut. The two are both 240 pin packages.

To clarify further, the HERMES I bought from Apache a number of years ago has the "40" version. The latest purchased last year and finally delivered this year has the "25" version. I really wondered if I could replace the broken "40" in the early board with the "25". The boards appear to be the same except for the FPGA.

I suppose I could install a "25" and see if it works. Just trying to solve the mystery before taking that step and potentially wasting $50.

Don
K3DLW


Message: 1
Date: Wed, 15 Nov 2023 16:00:41 GMT
From: "dlwaddel at netzero.net" <dlwaddel at netzero.net>
To: hpsdr at lists.openhpsdr.org
Subject: [hpsdr] FPGA?
Message-ID: <20231115.110041.28647.0 at webmail08.dca.untd.com>
Content-Type: text/plain; charset=windows-1252

The early HERMES I have contains a EP3C40Q240C8N FPGA and the latest one from Apache Labs contains a EP3C25Q240C8N FPGA. Does anyone know if the EP3C25Q240C8N will work in the older HERMES? It is considerably less expensive and the one in my older board bit the dust.

Don
K3DLW


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Message: 2
Date: Wed, 15 Nov 2023 18:06:12 +0100
From: Helmut Oeller <dc6ny at gmx.de>
To: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] FPGA?
Message-ID: <2a0d017f-2a7d-4752-aa01-46553578ebec at gmx.de>
Content-Type: text/plain; charset=UTF-8; format=flowed

EP3C40 ... is the larger FPGA containing 39600 LE (logic elements). The
small EP3C25 ... only contains 24624 LE.

Helmut, DC6NY

Am 15.11.2023 um 17:00 schrieb dlwaddel at netzero.net:
> ***** High Performance Software Defined Radio Discussion List *****
>
> The early HERMES I have contains a EP3C40Q240C8N FPGA and the latest one from Apache Labs contains a EP3C25Q240C8N FPGA. Does anyone know if the EP3C25Q240C8N will work in the older HERMES? It is considerably less expensive and the one in my older board bit the dust.
>
> Don
> K3DLW
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Message: 3
Date: Wed, 15 Nov 2023 19:17:14 +0100
From: Helmut Oeller <oeller at freenet.de>
To: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] FPGA?
Message-ID: <42c7e801-612c-4161-814d-365182ed699b at freenet.de>
Content-Type: text/plain; charset=UTF-8; format=flowed

addition: Maybe? the EP3C25 is used on the Hermes 14 Bit board requiring 
other firmware. Moreover packages are not compatible: 256 pins vs 484 
pins. We used this small FPGA on our 'good old Mercury'

DC6NY

Am 15.11.2023 um 18:06 schrieb Helmut Oeller:
> ***** High Performance Software Defined Radio Discussion List *****
>
> EP3C40 ... is the larger FPGA containing 39600 LE (logic elements). The
> small EP3C25 ... only contains 24624 LE.
>
> Helmut, DC6NY
>
> Am 15.11.2023 um 17:00 schrieb dlwaddel at netzero.net:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> The early HERMES I have contains a EP3C40Q240C8N FPGA and the latest 
>> one from Apache Labs contains a EP3C25Q240C8N FPGA. Does anyone know 
>> if the EP3C25Q240C8N will work in the older HERMES? It is 
>> considerably less expensive and the one in my older board bit the dust.
>>
>> Don
>> K3DLW
>> _______________________________________________
>> HPSDR Discussion List
>> To post msg: hpsdr at openhpsdr.org
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>> http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
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>> Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/
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> To post msg: hpsdr at openhpsdr.org
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