undocumented commands for BEKEN module BK8000L and BK3254 about bk8000l HOT 11 CLOSED

CMD+AUD+ENABLE+0+1
CMD+AUD+CONF+0+0+0+30000+70+44100+200
This commands sets the eq0 on, sets it as low-pass filter with a gain of 3dB, a center frequency of 70Hz, 44100 sample rate, and a bandwidth of 200Hz

from bk8000l.

log from QE tab of 3254_ToolKit_V2.6.exe

[WRITE] CMD+AUD+CONF+0+0+0+10000+100+44100+100
[WRITE] CMD+AUD+CONF+1+1+1+20000+200+44100+200
[WRITE] CMD+AUD+ENABLE+1+1
[WRITE] CMD+AUD+ENABLE+0+1
[WRITE] CMD+AUD+ENABLE+0+0
[WRITE] CMD+AUD+ENABLE+0+1
[WRITE] CMD+AUD+ENABLE+0+0
[WRITE] CMD+AUD+ENABLE+2+1
[WRITE] CMD+AUD+ENABLE+0+1
[WRITE] CMD+AUD+ENABLE+1+0
[WRITE] CMD+AUD+ENABLE+1+1
[WRITE] CMD+AUD+CONF+1+0+0+20000+200+44100+200
[WRITE] CMD+AUD+CONF+1+0+0+20000+200+44100+200
[WRITE] CMD+AUD+ENABLE+1+0
[WRITE] CMD+AUD+CONF+1+0+0+20000+200+44100+200

Equlizer command explained:

1. command for configurint equalizer CMD+AUD+CONF+
2. equalizer number [0,1,2...4] +
3. EQ mode: shelving=0/peak=1 +
4. filter type: low=0/high=1 +
5. Gain: (gain*10000, gain can be from -24 to 18) +
6. center freq(Hz) +
7. Sample freq(Hz) +
8. bandwith (Hz) (in config this is marked as 3dB bandwith, I do not know that it mean, i'm not audio expert)
   Example:
   Equalizer 0 shelving mode, low pass, gain -22,9876dB, center freq 456Hz, sampling freq 44100Hz, bandwith 789Hz:
   CMD+AUD+CONF+0+0+0+-229876+456+44100+789

enable equalizer:
CMD+AUD+ENABLE+0+1

1. command: CMD+AUD+ENABLE +
2. equalizer number (0,1,2,3,4) +
3. enable = 1,disable=0

none of this seams to works on my bk3254 module ... so maybe it need to enabled in firmware ...

from bk8000l.

so I try it on BK8000L and BK3254 modules without luck :(

EDIT:

my module is comunicating at 9600bps so default comunication speed in software did not work (115200)

trying it on serial, it actualy do something on BK8000L ... need more testing

from bk8000l.

I confirm the EQ commands working on the BK8000L with EQ0-EQ4 Option and EQ enable. Each EQ is for a particular frequency from the table above. I boosted the low range and the ouput started distorting very bad. Everything with moderation(a few dB should be enough)

from bk8000l.

can you send what commands did you try?

what I can say:

bk8000L module:

this make module really quite:
CMD+AUD+CONF+1+1+1+18000+200+44100+200
CMD+AUD+ENABLE+1+1

for BK3254 it did not do anything

t.

from bk8000l.

this just make volume low on my module :/ did you have dump of your eeprom?

from bk8000l.

It is the dump with the AT commands from the google group bk8000l

from bk8000l.

@xandeerzz Can you apply EQ while playing music?
What's your hardware connection? How is your BK8000L connected to your computer?
thx!

from bk8000l.

How are you guys applying the commands, for instance CMD+AUD+ENABLE+0+1 ? Over serial?
If I try AT+CMD+AUD+ENABLE+0+1 i get an "OK" in return from the chip but I don't really know if I can trust it because if i try "AT+CMD+XUD+XNABLE+0+1" i still get an OK. If i edit the word CMD i get no response at all. I'm using the BK8000L

from bk8000l.

Could you please help me?
I've got the module with the BK3254 and wired it up via UART. If I turn the module on it sends a few lines out (for example BT_CN), but I can't get it to respond to any comands listed in the datasheet.
I don't know what I do wrong but I just want to rename my device.

from bk8000l.

please do not ask questions in issues regarding other problems, thx

I moved your question here:

tomaskovacik/BK3254#11

from bk8000l.