Device failed to setup on new chips

[MattMills]

Subject of the issue

Purchased several https://www.sparkfun.com/products/15805, tested two chips on example1, both emit "Device failed to setup"... however if I comment out the infinite loop they appear to work fine. I did check the device ID and it is reporting 0x117 so the issue is in this code:

if (_i2cPort->endTransmission() != 0)
	{
		return false;
	}

If I check the status code coming from endTransmission it's 7 == I2C_ERROR_CONTINUE

Your workbench

• What development board or microcontroller are you using?
  ESP32S2
• What version of hardware or breakout board are you using?
• How is the breakout board wired to your microcontroller?
  Qwiic
• How is everything being powered?
  USB-C
• Are there any additional details that may help us help you?

Steps to reproduce

1. Load example 1.
2. Press Upload

Expected behavior

It should work

Actual behavior

It doesn't.

[nseidle]

I've tested on ESP32 and works fine. I'll get setup with the S2 shortly. I suspect it's core related since the S2 is so new (19 hours old at the time of writing).

[MattMills]

I'm pretty positive it's just due to the changes in the Espressif libraries required for the ESP32S2, they implemented I2C_ERROR_CONTINUE which is somehow related to I2C pending write. I was able to get the library working by commenting out some of the I2C return code checking. I had to do the same on the MS5637 to get it going.

[nseidle]

Yep, indeed. The ESP32 S2 core is not yet respecting repeated starts. See this issue. If you pull the latest ESP32 Arduino core repo, it should help.