Search found 1503 matches

by pasi
Yesterday 15:04
Forum: Stand-Alone Applications
Topic: VS1063 strange SD card issues
Replies: 5
Views: 24

Re: VS1063 strange SD card issues

Something funky is going on, it shouldn't take that long. (Still the supply current issue slowing it down?) The scan for free space has an upper limit to not go through the whole file allocation table. It ends as soon as there is (twice) the space defined by MAXFILESECTORS. The current value seems t...
by pasi
Yesterday 13:23
Forum: VS1005 and VSOS Software
Topic: No sound on VS1005 custom board
Replies: 10
Views: 210

Re: No sound on VS1005 custom board

The value of the capacitors depend on the internal capacitance of the crystal and the stray capacitance of the board. Test the theory first by checking XTALO with an oscilloscope and/or remove the capacitors completely. If the oscillator is running but you still don't get the voltages to rise, then ...
by pasi
Wed 2018-10-17 12:31
Forum: Stand-Alone Applications
Topic: VS1063 strange SD card issues
Replies: 5
Views: 24

Re: VS1063 strange SD card issues

Give me a shout at support@vlsi.fi and I'll give the address.
by pasi
Wed 2018-10-17 11:03
Forum: Stand-Alone Applications
Topic: VS1063 strange SD card issues
Replies: 5
Views: 24

Re: VS1063 strange SD card issues

Both normal and HC are handled, so there should not be a direct link. However, there are cards that do not implement the SPI communication mode quite correctly. The latest I have seen are: - multiple read block fails on (my guess) page boundaries - read single block randomly fails So, the standalone...
by pasi
Tue 2018-10-16 16:26
Forum: Stand-Alone Applications
Topic: Problems getting started with VS1063
Replies: 14
Views: 65

Re: Problems getting started with VS1063

The prototyping board regulator for IOVDD doesn't have much reserve, and the switching transformer from the battery may not give enough current either due to the battery not being able to provide it. The powering of the vs10xx prototyping board has just not been scaled to the cards existing now. It ...
by pasi
Tue 2018-10-16 15:55
Forum: Stand-Alone Applications
Topic: Problems getting started with VS1063
Replies: 14
Views: 65

Re: Problems getting started with VS1063

Newer cards have a dedicated regulator for the uSD/SD card.
by pasi
Tue 2018-10-16 12:48
Forum: Stand-Alone Applications
Topic: Problems getting started with VS1063
Replies: 14
Views: 65

Re: Problems getting started with VS1063

At least I seem to run into a powering issue. The uSD card I used takes a lot of current when writing, and it seems the power supply of the prototyping card cannot always handle that (especially with the NiMH rechargables I use). Feeding 2V8 from external power seems to remove the crashes and other ...
by pasi
Tue 2018-10-16 11:51
Forum: Stand-Alone Applications
Topic: Problems getting started with VS1063
Replies: 14
Views: 65

Re: Problems getting started with VS1063

Check that SE1,SE2,SE3 jumpers are present. You should see recording start messages from the UART. With UART_BUFFERED (but by pressing keys): Init Record CallEncoders Saving Recording! Without UART_BUFFERED you seem to be able to start recording, but not end it. I'll take a look at what's going on. ...
by pasi
Tue 2018-10-16 10:59
Forum: VS1005 and VSOS Software
Topic: No sound on VS1005 custom board
Replies: 10
Views: 210

Re: No sound on VS1005 custom board

2) is most probably because the oscillator is not running and the chip never comes out of reset. Try removing the capacitors from the oscillator circuit to see if the board wakes up then. (Like I said, 30pF sounds very high.)
by pasi
Mon 2018-10-15 15:55
Forum: VS1005 and VSOS Software
Topic: No sound on VS1005 custom board
Replies: 10
Views: 210

Re: No sound on VS1005 custom board

If RCAP is 0, but AVDD has voltage, then probably the reference has not been enabled, or some code has switched it off. Could you print the content of ANA_CF2? (Reference enable is bit 3 of ANA_CF2, and high reference select is bit 4.) xRESET should probably have a capacitor to ground to delay comin...