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USB Low-Full-High Speed Peripherals
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Anonymous
Not applicable
Jun 27, 2018
05:39 AM
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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
Solved! Go to Solution.
1 Solution
SrinathS_16
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Jun 28, 2018
11:09 PM
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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
1 Reply
SrinathS_16
Moderator
Jun 28, 2018
11:09 PM
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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