I hear some crackling in a recording when hitting the mic - so some sort of very dsitorted throughput 🙂
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OK - all my trials including the "crackling" was at 44. The last I did before giving it (me) a rest was to strap it for 88. I did never succeed with double speed - not this time either.
Next efforts will be for 88 and I'll check the Mod output. I should try to make it work at 88 from the EVM coax before more tests on the Dem output. But now there *will* be 2 days rest as I'm now an hour drive from the gear 🙂
Marcel, again, immensely thankful for your tireless and prompt support - kudos!!!
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Next efforts will be for 88 and I'll check the Mod output. I should try to make it work at 88 from the EVM coax before more tests on the Dem output. But now there *will* be 2 days rest as I'm now an hour drive from the gear 🙂
Marcel, again, immensely thankful for your tireless and prompt support - kudos!!!
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I'm not sure what you are strapping. The PCM4222 just provides either 5.6448 million six-bit samples per second or 6.144 million six-bit samples per second to the FPGA which, if it works, decimates that to 88.2 kHz or 96 kHz sample rate, 24 bit PCM.
OK. I was not sure about how it works... but maybe this is not in play if you tap the Modulator output. Maybe the only thing I need to care about is to activate the Modulator output and the all other straps are out of play... The Manual is not so clear about that but maybe it is obvious... 🙂
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It is now that I ponder it. So activate Modulator and choose freq family - thats it on the EVM really.
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At it again... found a cabling issue but now fixed. Still no success... Here comes scope shots of the situation. Hover on attachments for descriptive file names...
Seem to be no i2s data coming out... checked connector numbering... seem OK...
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Seem to be no i2s data coming out... checked connector numbering... seem OK...
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