Unable to write SCI_STATUS (please check my schematic)

[rogozhin]

Dear friends, I tried to make a WiFi radio board myself based on the ESP32 module and the VS1053B chip, but it did not work for me
I have error in boot log ESP32 at initialization VS1053:

Unable to write SCI_STATUS

As i understand i have some hardware failure (the chip is not correctly powered up, not correctly connected and so on) and VS1053 register STATUS is 0x000 or 0xFFFF
Please help me to find an error in the VS1053 wiring diagram.

Part code of VS1053 library for ESP32:

Code: Select all

voidAudio::setVUmeter() {
   if(!VS_PATCH_ENABLE) return;
   uint16_t MP3Status = read_register(SCI_STATUS);
   if(MP3Status==0) {
     Serial.println("VS1053 Error: Unable to write SCI_STATUS");
     _vuInitalized = false;
     return;
   }
   _vuInitalized = true;
   write_register(SCI_STATUS, MP3Status | _BV(9));
}

scheme.jpg (1.81 MiB) Viewed 645 times

P.S.This is my first experience in creating a PCB for digital devices. Please do not scold too much)

[pasi]

- Is xRESET high? (I.e. is ESP driving EN high?)
- Does the code wait for DREQ to go high?
- Is RCAP at 1.2V?
- Is the oscillator running? 33pF C6/C7 might be too large depending on the crystal
Edit: - XDCS is high (and XCS low) during SCI operations?

See also: viewtopic.php?f=10&t=58

[Hannu]

I hope that the AGND - GND jumper is closed and nidely near or under the chip.

Is the patch uploaded already at the time when that code is executed?

[rogozhin]

Thank you very much Hannu and pasi! With your help i found a bug in my schema
The changes that I made:
- remove R2 resistor
- C6, C7 33p changed to 22p
- remove R6 resistor