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by ssuloev
Sun 2020-01-05 23:59
Forum: Microcontroller Software
Topic: VS1003 IMA ADPCM recording: nose from SPI bus
Replies: 1
Views: 550

VS1003 IMA ADPCM recording: nose from SPI bus

Hello, I am trying to record IMA ADPCM with VS1003 and my custom Atmega128-based device. My problem is that I am hearing a significant noise at the moments when a block is written onto SD card. While SCI and SDI select lines are driven high at the moments it looks like VS1003 is still listening to S...