Search found 1435 matches

by pasi
Mon 2018-02-05 16:52
Forum: DSP and Audio Software
Topic: VS1053 i2S HAVE NOISE
Replies: 1
Views: 112

Re: VS1053 i2S HAVE NOISE

What is the I2S DAC you are using?

Is the I2S DAC configured for I2S mode (instead of DSP mode)?

Does the I2S DAC support 16 bits with the MCLK and I2S_CLK you get?
by pasi
Fri 2018-02-02 14:05
Forum: Microcontroller Software
Topic: Clarification of maximum SPI speed for SCI reads
Replies: 3
Views: 152

Re: Clarification of maximum SPI speed for SCI reads

When reading, you need to take into account 1.The microcontroller reads data on the rising edge. VS10xx puts data out when it detects a falling edge. 2. CLKI is asynchronous to the SPI clock -> 0..1 CLKI of delay for detecting CLK low 3. Input signals are registerized -> 1 CLKI of delay (maybe more)...
by pasi
Wed 2018-01-24 15:01
Forum: Microcontroller Software
Topic: recording audio through codec
Replies: 20
Views: 316

Re: recording audio through codec

Have you read viewtopic.php?f=10&t=58 ?

Do you have all the voltages present?
Does xRESET go high?
Is xTEST high?
Do GBUF/LEFT/RIGHT bias to 1.2V?
What is your SPI clock speed?
by pasi
Thu 2018-01-18 11:19
Forum: Microcontroller Software
Topic: VLSI1063 hangs during MP3 encoding
Replies: 22
Views: 854

Re: VLSI1063 hangs during MP3 encoding

Reading the register continuously does produce some interrupt load. If there are no (or not enough) words to read, your controller can perform some other task or delay.

It should not cause a lockup though.
by pasi
Mon 2018-01-15 17:12
Forum: Microcontroller Software
Topic: VLSI1063 hangs during MP3 encoding
Replies: 22
Views: 854

Re: VLSI1063 hangs during MP3 encoding

There is very little you should need to do. My normal startup sequence is: 1) Wait for DREQ to raise 2) Write 0x4c00 to SCI_MODE (our setup needs shared mode) 3) Write a suitable value to SCI_CLOCKF, (wait for DREQ to raise) 4) Send the patches package, which includes a write to AIADDR to start it, ...
by pasi
Mon 2018-01-15 12:33
Forum: Microcontroller Software
Topic: VLSI1063 hangs during MP3 encoding
Replies: 22
Views: 854

Re: VLSI1063 hangs during MP3 encoding

The data and clock seem good.

xDCS should have a pull-up resistor even when you are not using it.

Also double-check that xTEST is pulled high or connected directly to IOVDD.
by pasi
Mon 2018-01-15 12:12
Forum: Microcontroller Software
Topic: VS1063 couldn't work well in codec mode
Replies: 5
Views: 117

Re: VS1063 couldn't work well in codec mode

Have you read the application note: http://www.vlsi.fi/fileadmin/app_notes/vs1063an_aec.pdf

AEC won't work above 24kHz samplerate.
by pasi
Tue 2018-01-09 13:10
Forum: Microcontroller Software
Topic: VLSI1063 hangs during MP3 encoding
Replies: 22
Views: 854

Re: VLSI1063 hangs during MP3 encoding

Could you zoom in on one byte transfer?

If the patch upload can get stuck like that, the issue is probably in the SPI transfers.
by pasi
Mon 2018-01-08 11:19
Forum: Microcontroller Software
Topic: Linein Not Working , am i set registers right?
Replies: 9
Views: 432

Re: Linein Not Working , am i set registers right?

You can use fixed gain instead of AGC.
by pasi
Fri 2018-01-05 13:01
Forum: Microcontroller Software
Topic: Linein Not Working , am i set registers right?
Replies: 9
Views: 432

Re: Linein Not Working , am i set registers right?

What's your AVDD voltage?

RCAP is pin 44.

When you connect your circuit to LINE, how does it look like then?