VSDSP Forum

SimpleShell() has two commands: exit, which usually exits to romplayer and play which plays the file you have specified. For example "play r:hello.mp3" You can read the ROM sources main.c More simple programs can be found from R: device. Like "dir" list files, "type" pr...

Dear all, I'm going to design a PCB where the VS1005 uses the SD card only. It boots from internal flash. Without external flash. There is no NAND flash. You are quite close to break out board mk 2. It is probably the smalles thing which you can build if analogs are wanted. It doesn't have external...

Hi, Actually there are no usable tools because writing a generic generator tool is between hard and impossible. Usually I just write some throw away code which checks something and hand craft the descriptors. This is non-optimal situation but best that there is. However it isn't that hard on pc to w...

Hi, Implementing volume controls and mutes to descriptor for 5 channel audio is one thing. Another is how the USB host supports the control. And as Pasi mentioned, there are selectors, mixers, compressors and other effects available on the USB interface. However I don't know any host system which us...

With a USB composite device making a DAC + CDC UART. The VS1010 has 4 endpoints. 4 in and 4 out. One pair (0) goes to setup. another pair for DAC and feedback. CDC requires data pair and interrupt and after that one out endpoint is left. So it is doable and tedious, but after features adding feature...

I think something like this in config.txt would do the trick #UART driver uartin #setclock in startup is needed run setclock 60 #ADC driver to stdaudioin auiadc s # Input selection and 48 kHz 32b run auinput line2_1 line2_2 -r48000 -b32 #DC block ftidcbl #I2S output to stdaudioout auoi2sm s # Output...

Without testing, I would say that VS1010 DAC, sends USB audio also to I2S. And if the USB host changes the volume or mutes it, the volume changes in the I2S too. Some status pins are available. GPIO2_0 16/16+ bits per sample GPIO2_1 sample rate >48k and I think GPIO2_0 is if host is sending audio. T...

Hi, I gave this problem some more thought on porting to VS1010. If there aren't some VS1005 specific features required, like huge memory or AD converters and recorder features, most programs can be ported to VS1010. MP3 decoding works on VS1010, USB host is supported and SD-card also works on both. ...

Problem with VS1005 USB audio is hardware related. And there hasn't been a new revision. So unfortunately only chip from VLSI which can do USB audio is VS1010.

OK I have implemented this and it works great. There was a little adjusting needed so i put that below for any others using this as a reference. It did halve the length of the recording but this was obviously a really easy fix. I did have an issue where I needed to select the right channel, this pu...