UART chip affect the DDR test of S32G

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UART chip affect the DDR test of S32G

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carolyn_zhang
Contributor II

Hi,

We made our own S32G board. When we do DDR test, we found that:

  1. We used FT232RL, DDR test passed.
  2. We used CH340B, DDR test are unstable, sometimes succed, sometimes failed, about fifty fifty. When failed, the log showed 'error-odd-length-string'
  3. We used CP2102, DDR test failed,  the log showed 'Exception: The serial connection has communication issues.'

Could somebody give me some advices about this? Is it the bug of the DDR test tool? Thanks.

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