Search found 1466 matches

by pasi
Tue 2018-06-12 11:28
Forum: VS1005 and VSOS Software
Topic: Using Analog pin for battery voltage detection
Replies: 12
Views: 232

Re: Using Analog pin for battery voltage detection

Another possibility is that IOVDD is configured to 1.8V (GPIO0_7 being low during reset) and external connected devices using 3.3V drive current through the protection diodes which pulls the voltage up to 2.4-2.5V.

Either way, the problem should be located and fixed.
by pasi
Tue 2018-06-12 11:24
Forum: Microcontroller Software
Topic: ADC and DAC
Replies: 1
Views: 21

Re: ADC and DAC

Those high-speed DAC/ADC are technology for graphics card / video applications VLSI Solution was once involved with.

Currently VLSI Solution is more concentrated on audio.
by pasi
Fri 2018-06-08 11:56
Forum: Microcontroller Software
Topic: VLSI1063 hangs during MP3 encoding
Replies: 24
Views: 1655

Re: VLSI1063 hangs during MP3 encoding

I have two ideas to try to divide and conquer the issue. 1. Can you try 1.9V-2.0V CVDD? However, you already use lower than max clock, so this shouldn't change the situation. 2. Encode with the UART output enabled and don't read the data through SCI to see if the encoding still crashes. If a crash h...
by pasi
Fri 2018-06-08 11:11
Forum: VSIDE
Topic: Keep getting C:\Program Files\VSIDE\bin\make.exe: *** [Emulation-Debug\playwavorogg.o] Error -1073741819
Replies: 7
Views: 112

Re: Keep getting C:\Program Files\VSIDE\bin\make.exe: *** [Emulation-Debug\playwavorogg.o] Error -1073741819

Hi, it seems the libdev1000.a hasn't been updated in VSIDE for a while.

A workaround: make a lib/ subdirectory under the Player/ directory in the solution and copy the attached file there as libdev1000.a .
by pasi
Fri 2018-06-08 10:55
Forum: VSIDE
Topic: Recording issue in VS1063
Replies: 5
Views: 55

Re: Recording issue in VS1063

Can you send a small example file?

The most usual mistakes is a wrong byte order, or the storage not being able to save data quickly enough.
by pasi
Fri 2018-06-08 10:53
Forum: DSP and Audio Software
Topic: dacmode functionality on vs1163
Replies: 2
Views: 44

Re: dacmode functionality on vs1163

When waiting for data from the SDI FIFO, vs1163 tries to keep the audio FIFO relatively empty. Also, in vs1163 you can read the SDI and audio FIFO fill states using the parametric_x structure. (vs1063 datasheet 11.10: Write 0xc0df to SCI_WRAMADDR, read SCI_WRAM to get sdiFree, read SCI_WRAM again to...
by pasi
Fri 2018-06-08 10:45
Forum: Stand-Alone Applications
Topic: How to change fw on VS1103 module
Replies: 1
Views: 49

Re: How to change fw on VS1103 module

You need to prevent boot by keeping GPIO0 low while you power up the module. You can then reprogram by using pcmodflash.exe .
by pasi
Fri 2018-06-01 17:01
Forum: Microcontroller Software
Topic: Playing files directly from SD card
Replies: 6
Views: 122

Re: Playing files directly from SD card

It looks like the C preprocessor cannot create a temporary file in the directory.

It may be a permissions issue. Also check that you have decompressed the package first and not trying to compile inside the .zip package.
by pasi
Thu 2018-05-31 11:36
Forum: Microcontroller Software
Topic: Playing files directly from SD card
Replies: 6
Views: 122

Re: Playing files directly from SD card

When using vs1063 standalone player without boot SPI: 1.Release AUDIO_RESET 2.Wait for DREQ to rise (you need the controller to read DREQ) or wait the appropriate time. 3.Upload the SCI-controlled player code from player.plg using SCI writes. See VS1063 Standalone Player/Recorder - VSIDE solution an...
by pasi
Fri 2018-05-25 12:47
Forum: VS1005 and VSOS Software
Topic: Using Analog pin for battery voltage detection
Replies: 12
Views: 232

Re: Using Analog pin for battery voltage detection

Which value do you get when AUX is connected to GND? If you don't have anything connected to a pin, it probably biases to the reference voltage, which is why you get the same value for the reference voltage and the other input. And like Panu asks, what are you measuring for IOVDD and AVDD voltages w...