esp-hosted-ng问题(SPI)

[VegardCheng]

Checklist

• Checked the issue tracker for similar issues to ensure this is not a duplicate.
• Provided a clear description of your suggestion.
• Included any relevant context or examples.

Issue or Suggestion Description

请问这是什么问题？

[mantriyogesh]

1. please capture a camera picture
2. state the git log at slave and host used
3. sdkconfig used at slave
4. complete textual log of esp side from flashing

[VegardCheng]

接错了一根线
现在提示：Length not matching to firmware data size

[mantriyogesh]

1. I still would request you to check esp-hosted-ng问题(SPI) #591 (comment)
   and respond with the answers.

2 Generally, this type of error would come if-
2.1. the jumper wires are too big, or
2.2. improper grounding, or
2.3. jumper cables are too big, or
2.4. spi frequency used is too high.

• Max spi freq that ESP chips in slave mode can operate:
  • On PCB:
    • ESP32: 10MHz
    • C2/C3/S2/S3/C5 : 40MHz
    • C6: 26 MHz
  • On Jumper cables: use 5MHz first, gradually increase till above limit, till the signal noise saturates the signal.