VSDSP Forum

Hello! Problem: installing QNAP Qfinder Pro prevents VS1005's external mass storage mode from appearing in Windows 7/10 Our customer has been advised to contact QNAP. But I thought it would be good to look at both ends of the USB cable, so-to-speak - the error message seems very low in the USB stack...

Panu, thank you for your reply. I copied eeprom_i.map from the VSOS_355g_IntFlash folder (image and map files are here) to the VSIDE\bin folder. Same result. After more troubleshooting, I moved my .bat script in to the VSOS_355g_IntFlash folder and everything worked. So, you pointed me in the right ...

Hi Panu, Thank you for your reply. I see now that vs3emu first needs to know flash type, and from there will look for and load eeprom_i.img (we also call it "kernel.img"). Progress, but not there yet. Below, it hangs after it warns of "Can't open map file "eeprom_i.map" for reading", and "Can't open...

Hello All, Based on my searches, this thread appears to be the most applicable to what I am attempting. Goal: use a Windows batch script (.bat) to load kernel image in to a blank VS1005g during factory programming. Problem: vs3emu appears to start well, but then hangs. Note: I am not responsible for...

Hello Pasi, If you have a ±10ppm 12.288MHz oscillator, that's also the accuracy of the samplerate. There's nothing inside vs1005 that would inherently lose clocks That is what I suspected; thank you for confirming. If you can use IOVDD (i.e. the oscillator works with 1.8V), you don't need to switch ...

Hello Hannu and Panu, I'm glad we are not making a tarriffe clock - way over my head. :) I've been thinking about this issue backwards. We need very accurate audio clock, not ultra accurate file timestamp. (Duh, David! :roll: ) Does a ±10ppm 12.288MHz XO linearly result in a ±10ppm 48kHz sample rate...

Hello Hannu,

Your other ideas are great food for thought. We will review.

Many thanks!

David

Hello Panu, A new, related question. We need to consider a more accurate RTC clock. I'm wondering if it is possible to switch between two hardware 32.768kHz clocks (one is low accuracy, low power; other is high accuracy, high power) depending on whether the product is turned Off and running from lim...

Thank you Panu.

I was thinking the same, but had to ask to be sure I wasn't overlooking something.
Thanks!
DMc

Hello! In the VS1005 datasheet, page 10, Oscillator Specification table, it lists the RTC Frequency Tolerance as "±100ppm". Questions: Is this ±100ppm the range in which the VS1005 will work with a supplied clock (crystal, oscillator)? (i.e., if the supplied 32.768kHz clock is beyond ±100ppm, VS1005...