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Hi,
I am a software engineer.
We'vd designed a product that uses the CY8CKIT-033A development board.
As the same as the CY8CKIT-033A KIT, our products determine the type of USB-HOST by detecting the VBUS voltage.
As VBUS=5V,runs the PC/Mac/Android devices' firmware. Runs the Apple's firmwarewhile VBUS=3.3V.
In general, Apple devices provide 3.3V to the accessory via the Lightning interface.
The Android device supplies 5V to the accessory via the Type-C interface.
However, Apple's latest iPad Pro has been changed to use the Type-C interface.
If our accessories still use the output voltage to judge the USB-HOST type, the right firmwarecannot be run.
my question is, How dose PSoC 3 to get USB-Host's information via USB?
Is there any APIs for this purpose?
BR.
Shide Lu
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Hello,
You will not be able to detect the host by firmware. One thing you can do is to use the interface specific pins and check if there is a connection on those pins. Otherwise as you mentioned you can measure the voltage in firmware and take actions.
Please have a look at this forum post where the voltage is measured: Why not use supply voltage [5V0] as trigger to start bootloader ?
Thanks,
Hima
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Hello,
You will not be able to detect the host by firmware. One thing you can do is to use the interface specific pins and check if there is a connection on those pins. Otherwise as you mentioned you can measure the voltage in firmware and take actions.
Please have a look at this forum post where the voltage is measured: Why not use supply voltage [5V0] as trigger to start bootloader ?
Thanks,
Hima