Search found 2446 matches

by Panu
Mon 2018-02-19 10:20
Forum: System Software
Topic: VS1063A full-duplex operation query
Replies: 4
Views: 99

Re: VS1063A full-duplex operation query

any other gotchas I should be wary of? No, seems quite ok. Note that you'll need to run both VS10x3 chips in NEW_MODE (the "normal" SPI mode, default for VS10x3) and you'll need to connect both chip selected (XCS, XDCS) separately per each chip. Although if you only do recording on the other chip a...
by Panu
Mon 2018-02-05 9:25
Forum: VS1005 and VSOS Software
Topic: INITNAND gets stuck
Replies: 6
Views: 127

Re: INITNAND gets stuck

How's your NFRDY signal? If Chip Select is high and Ready is low, the hardware gets stuck waiting for the nand flash to become ready.

-Panu
by Panu
Sun 2018-01-28 13:11
Forum: VSIDE
Topic: VS1005 MP3 Player with USB Host
Replies: 23
Views: 3496

Re: VS1005 MP3 Player with USB Host

Why will your code only read buttons GPIO0_0 through GPIO0_3 on the development board Here's why: /* We are interested in the rising edges of GPIO0_0 through GPIO0_3... */ PERIP(GPIO0_INT_RISE) = 0x000F; (0x000F is 0000000000001111 in binary so only the lowest four bits are read. Use 0x0030 (000000...
by Panu
Wed 2018-01-24 17:38
Forum: Microcontroller Software
Topic: recording audio through codec
Replies: 20
Views: 309

Re: recording audio through codec

Hi!

When you debug your SPI communications, please check the "MCU Howto" link below.

-Panu
by Panu
Tue 2018-01-23 9:57
Forum: VS23S010 Forum
Topic: NTSC vs PAL colour palette
Replies: 6
Views: 297

Re: NTSC vs PAL colour palette

Hi! The left edge artifact comes from a small hardware bug in the image logic. When it switches from protoline region to picture region, the bias level changes from zero (sync_level) to 102 decimal (DVD standard black level). Unfortunately the bias changes one or two clocks too early, momentarily ad...
by Panu
Mon 2018-01-22 12:20
Forum: VS1010 Forum
Topic: Stream and Play music using UART of VS1010
Replies: 8
Views: 344

Re: Stream and Play music using UART of VS1010

Hi!

I'm working on it. Can you tell a little more about your application?

-Panu
by Panu
Sat 2018-01-20 12:39
Forum: VS23S010 Forum
Topic: NTSC vs PAL colour palette
Replies: 6
Views: 297

Re: NTSC vs PAL colour palette

Hi! What I don't quite understand yet how the color burst phase gets adjusted in addition to the amplitude? The microcode is identical to the example in the post about the same palette in NTSC and PAL. That comes from the color of the colorburst. That's defined in the picture prototype lines in memo...
by Panu
Sun 2018-01-14 12:06
Forum: VS23S010 Forum
Topic: NTSC vs PAL colour palette
Replies: 6
Views: 297

Re: NTSC vs PAL colour palette

Hi! Please see the post " Same palette for PAL and NTSC " at http://www.vsdsp-forum.com/phpbb/viewtopic.php?f=14&t=1813&p=9013#p9013 where this problem is discussed extensively. Basically, because you can select the color burst orientation freely in NTSC, whereas in PAL you are restricted to 45 degr...
by Panu
Thu 2018-01-11 15:24
Forum: VS1010 Forum
Topic: LFGA68 VQFN68
Replies: 1
Views: 172

Re: LFGA68 VQFN68

It's at the Documents section at VLSI webpage: http://www.vlsi.fi/en/support/download.html File name: VQFN68_DG8787_Rev_A.PDF . At the same page, you can find Eagle libraries for VLSI components. Eagle is free to use for viewing the libraries and designing small boards. We don't use Protel because o...
by Panu
Thu 2018-01-11 9:28
Forum: VS1005 and VSOS Software
Topic: vs1005 audio decoder, goto spot in audiofile in milliseconds
Replies: 4
Views: 258

Re: vs1005 audio decoder, goto spot in audiofile in milliseconds

I would have to scroll through every subsequent header, keeping track of the bitrate, until I reach the right part of the song, but that would take forever to go through every header.
That's what Henrik did in DIR -a command to show the length of MP3 file.

-Panu