Search found 5 matches

by Krish
Mon 2020-02-03 8:46
Forum: Microcontroller Software
Topic: VS1003B in mode IMA ADPCM
Replies: 7
Views: 118

Re: VS1003B in mode IMA ADPCM

Hi,
Thank you for your help.
Regards
by Krish
Wed 2020-01-29 15:58
Forum: Microcontroller Software
Topic: VS1003B in mode IMA ADPCM
Replies: 7
Views: 118

Re: VS1003B in mode IMA ADPCM

Hi,

Yes, I had the configuration, only the reverse I wrote in the forum.
I understand that the encoder and decoder can’t be in the same mode (0x1804) and I have to switch modes at the moment. Yes?

Regards
by Krish
Wed 2020-01-29 15:01
Forum: Microcontroller Software
Topic: VS1003B in mode IMA ADPCM
Replies: 7
Views: 118

Re: VS1003B in mode IMA ADPCM

Hi, It carries out simplex transmission (one transmits at the moment, the rest listens). The sender changes. When decoder is in MODE 0x1804 and encoder is in MODE 0x1800 – is OK, I hear a voice. When I change (decoder and encoder) MODE to 0x1804 that not work. I think the problem might be in the con...
by Krish
Wed 2020-01-29 12:48
Forum: Microcontroller Software
Topic: VS1003B in mode IMA ADPCM
Replies: 7
Views: 118

Re: VS1003B in mode IMA ADPCM

Hi, I checked your suggestions but it still doesn't work. Below I send my header and the function that initiates and writes data to the system. const uint8_t Header_IMA_ADPCM[] = { 'R' , 'I' , 'F' , 'F' , // Chunk ID (RIFF) 0x34, 0x01, 0x00, 0x00, // Chunk payload size // F0 F1 F2 F3 = 0x0134 (308 b...
by Krish
Mon 2020-01-27 12:40
Forum: Microcontroller Software
Topic: VS1003B in mode IMA ADPCM
Replies: 7
Views: 118

VS1003B in mode IMA ADPCM

Hi, I use VS1003B in mode IMA ADPCM (0x1804). I read data block (256 bytes) and sent by RS485 to second module. I calculate header, adds data but encoder not work. (When I change MODE to 0x1800 I hear a voice). So, I think that problem is with header RIFF. My question are: - If I send small blocks o...