Why serial1 only recv 127 bytes?

Technical Discussion Arduino SDK
1

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i send 128 bytes once，but the recv length is 127?

2

Hi @oxygenben ,

Please provide the information below to help us evaluate your issue:

  1. SDK version
  2. Board name
  3. Source code causing your issue
  4. How to reproduce this issue

Thank you

3

Thank you for response at weekends,i have found the solution。
the SDK version is 3.1.6 & Board name is amb23。

solution is following。

cores\ambd\RingBuffer.h
#define SERIAL_BUFFER_SIZE 128
===>
#define SERIAL_BUFFER_SIZE 512