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LIMA SDR / SI570 Frequency Control
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Eckhard
Hello Group,
I'm new to this group, started using SDR Radio a few days ago ... I'm using the LIMA SDR (http://www.darc.de/distrikte/l/02/sdr/) as hardware. It is a SI570 based SDR, similar to softrock. The problem I have is, that I cannot control the frequency from SDR-Radio software. The radio is listed in the SoftRock Support page properly, but it does not work. The only difference to the standard SoftRock HW is the device i2c address, it is 0x5f instead of 0x55. Maybe this is the reason? Is there the possibility to change i2c address in SDR-Radio? Thank you. Regards, Eckhard |
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Alan <alan4alan@...>
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----- Original Message -----
From: "eckrot" Subject: [sdr-radio-com] LIMA SDR / SI570 Frequency Control Eckhard, In the DG9SAQ and PE1FKO ATTiny setup utilities is an I2C address box. It seems this is where it addresses the Si570. I understand that the latest version 2 of the DG9SAQ ATTiny is not compatible with other SDR programs. It has been suggested that users of the stand-alone controller should use the PE1FKO firmware in the ATTiny. Perhaps this is the problem you have? Does your Lima work with Winrad (+DLL), all the PSDRs or Rocky? 73 Alan G4ZFQ Hello Group, |
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Eckhard
Hi Alan,
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it works perfectly with WINRAD, using the ExtIO_Si570.dll. Is there a way to use this dll interface also in SDR-Radio? 73 Eckhard --- In sdr-radio-com@..., "Alan" <alan4alan@...> wrote:
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Simon HB9DRV <simon@...>
Hi,
No - let me get a beta out in a week, then I (we) will look at this, it will not be difficult at all.
Simon Brown, HB9DRV http://sdr-radio.com
From: sdr-radio-com@... [mailto:sdr-radio-com@...] On Behalf Of eckrot it works perfectly with WINRAD, using the ExtIO_Si570.dll.
Is there a way to use this dll interface also in SDR-Radio?
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Eckhard
Thanks a lot, so I'll be patient ...
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73 Eckhard --- In sdr-radio-com@..., "Simon HB9DRV" <simon@...> wrote:
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Leif Asbrink
Hello Eckhard,
I'm new to this group, started using SDR Radio a few days ago ...The next version of Linrad, vers 03-14, will have support for Si570. In the routine si570.c you will find the following at line 41: char serialNumberString[20]; int i2cAddress = 0x55; double Si570_multiplier = 4; char * my_usbSerialID = NULL; char work_string[80]; You could easily change it to whatever you want and recompile as easily under Windows as under Linux. (Actually easier these days under Windows...) I do not have any Si570 myself but reports tell me it works with Linrad under Windows as well as under Linux. The work has been done by ON5GN, Pierre and tests by G3VBV, Sid. 73 Leif / SM5BSZ |
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Alan <alan4alan@...>
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----- Original Message -----
From: "eckrot" Subject: [sdr-radio-com] Re: LIMA SDR / SI570 Frequency Control I asked Fred, he said "> The old (and new?) SAQ firmware needed the I2C address in the set-freq call, that is not necessary any more in my firmware (only for So Fred's firmware does not need to be told the I2C but DG8SAQ may. I suspect Fred's much superior firmware could be used with the Lima, someone with an AVR programmer could try it. 73 Alan G4ZFQ |
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pe0fko
I did cheeked the schema <http://www.darc.de/distrikte/l/02/sdr/dateien/Manual_Board_1_RX_Teil3.pdf> The connections are the same, I expect the firmware will run without any problems on that board.
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For more information about the firmware check my web-page at <http://home.ict.nl/~fredkrom/pe0fko/SR-V9-Si570/>, there is a lot of information about programming a new chip (or ordering it from Cecil, K5NWA ). -- 73, Fred PE0FKO 2010/7/4 Alan <alan4alan@...>
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