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USB Low-Full-High Speed Peripherals

Anonymous
Not applicable

We started  iris design using Cypress controller, we need hardware and firmware support.The schematic has been attached in community forum,please alot one Engineer for schematic review

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Moderator
Moderator

Hello Padma Moorthy,

- The SCL and SDA lines should have a pull-up resistor of 2.2k.

- Also, make sure that the crystal used is in accordance with the below mentioned specification.

  •       24 MHz ± 100 ppm
  •       Parallel resonant
  •       Fundamental mode
  •       500 μW drive level
  •       12 pF (5 percent tolerance) load cap

Best regards,

Srinath S

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Moderator
Moderator

Hello Padma Moorthy,

- The SCL and SDA lines should have a pull-up resistor of 2.2k.

- Also, make sure that the crystal used is in accordance with the below mentioned specification.

  •       24 MHz ± 100 ppm
  •       Parallel resonant
  •       Fundamental mode
  •       500 μW drive level
  •       12 pF (5 percent tolerance) load cap

Best regards,

Srinath S

View solution in original post

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