I am trying to get my AIC3254 EVM-K to work for the first time and something is wrong. Everything seems to be able to connect over USB. Both AIC3254CS and purePath can see the board and download to it. All the LEDs are on like they should be (including USB LED on board and icon on CS). Device manager shows the "USB Composite Device" under USB controllers and "USB Audio Device" under Sound, video and game controllers.
The problem is the volume and mute buttons are greyed out in the "Sounds and Audio Devices Properties" control panel applet. I assume when it's working correctly my computer's audio should go through the EVM like any other audio device. Also when I run purePath and download an app, everything works nicely, the screen turns blue indicating runtime mode. But when I click on a volume fader, for instance, it fails like so:
Generating code for base_main_Rate44 .. assembling .....Done.Build succeeded.Found board type: FWIDTLV320AIC3254EVM-K.Board sampling rate: 44100Hz.Downloading base_main_Rate44.cfg to the EVM.done.Error: Buffer swap on DAC Coef failed
Does anyone have a clue what I'm not doing right? Do I need to upgrade code on the EVM or something?
running win XP SP3
When I bring up the AIC3254 CS tool it reports: firmware name: USB-MODEVM version: 2.02 sample rate: 44100 EVM name: TLV320AIC32x4EVM-K # of devices: 1 Device ID: 0 App ID: 1
Also, I probed the 44K clock signals on the EVM with a scope, and they seem to be there and in spec.
It could be that you need to upgrade your firmware. Our AIC3254 EVM-K is working fine at 44.1kHz., but I upgraded it soon after we got it. It is now version 2.03. The weird thing is that it reports Firmware Name as USB-miniEVM. But otherwise it works well.
If only there was support for it to run at 8kHz...
Let me know if you need help upgrading.
Thanks for replying. I upgraded mine to 2.03 using the binary image that was in the CS install. It too showed the firmware name USB-miniEVM. Unfortunately it didn't fix the parameter updating problem, and the sound applet still shows volume and mute greyed out.
I then noticed that the purePath install had a version 2.21 binary image, so I tried loading that one and still no go. All I can think to do now is try a different computer.
By the way, why do you say there isn't suport for 8 Khz? Isn't that just a matter of loading the appropriate binary image?
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