Code: Select all
Sketch uses 223488 bytes (17%) of program storage space. Maximum is 1310720 bytes.
Global variables use 14648 bytes (4%) of dynamic memory, leaving 313032 bytes for local variables. Maximum is 327680 bytes.
esptool.py v2.3.1
Connecting........_
Chip is ESP32D0WDQ6 (revision (unknown 0xe))
Features: WiFi, BT, Dual Core, VRef calibration in efuse
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Warning: Could not auto-detect Flash size (FlashID=0x0, SizeID=0x0), defaulting to 4MB
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds...
A fatal error occurred: Timed out waiting for packet header
A fatal error occurred: Timed out waiting for packet header
Code: Select all
rst:0x10 (RTCWDT_RTC_RESET),boot:0x33 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371
ets Jun 8 2016 00:22:57
I followed the schematic for the Lyra board in terms of SD card setup, USB to UART, and reset circuitry. My schematic is here:
As I mentioned, I used the same pinout configuration used on the Lyra. I'm concerned that some of the pins, especially IO0, which I'm using for my audio codec MCLK, is needed in the boot process. I guess I'm not perfectly clear on what needs to be pulled up or down during boot, and how that effects those pins after boot.
Any help with this would be greatly appreciated! Thanks!