FWIW, I was using a normal RMII PHY (LAN7820A) and didn't hit these interrupt issues (that I know of?).

How/why did you guys select the ENC28J60?

Small update on my previous post: Whilst ADC data flow "works fine" at 100kSPS, the THD+N of the captured waveform shows there is significant sampling jitter (or data misalignment). 50kSPS seems to work better. I think that it's a timing issue on the SPI handler - it may not get to run in between ea...

Hi opcode_x64, Two days of head bashing, and I got that working. The esp-idf High Level Interrupt documentation needs to be updated, as we now need to add something to CMakeLists.txt to get it to link in the assembly (replace the last word with whatever you put at the bottom of the .S file: target_l...

I'm doing something similar, and have hit similar issues. If you really want to use the RMT to output signals, the only thing I could think of would be feeding the SCLK you output back into the ESP32 on another pin, and using a SPI peripheral in slave mode to read in the data. (I don't think you can...

Figure 2-1 of 'ESP32_Certification_and_Test_Guide__EN.pdf' shows no antenna connection as the correct test setup for certification - that seems unlikely!

Hi, I'm wondering whether we need a 32mbit flash, or if a 16mbit flash will suffice. For my application, I shouldn't need to store large chunks of data, just two OTA partitions. I see I need to set aside the first 64KB for the bootloader/partition table etc, and that app partitions need to be 64KB a...

I wasn't able to reproduce this issue today (without your patch), so I can't confirm the fix. Not sure what's changed.

I'll make sure to try the fix out when it crops up again.

Occasionally (maybe one in 10~20 boots) I see the ESP31 fail to boot and draw a very high amount of current - I've seen between 450mA and 550mA (different for different occurrences). Repro: power cycle the module and look at the input current. I guess it's getting stuck in the PA calibration process...

I'm using an external AP - an Apple Airport Express. Laptop isn't sleeping.

rudi ;-) wrote:btw, read in, test yours and let me know.
http://esp32.com/viewtopic.php?f=14&t=62

but i think yours is running now?
best wishes
rudi

After you mentioned hot air, I gave the ESP31 IC a quick reflow and it has worked since. Thanks for the tip