Help: how can I send changes in CTS and DSR lines to the host?

[hoji_1442086]

Dear Cypresser:

How can I send changes in CTS and DSR lines to the host?

The below function only send back DSR line status(SERIAL_STATE).

Thank you very much!

USB Low-Full-High Speed Peripherals​SuLe_1710756​IrAh_2291321​StAl_1564616​

[YatheeshD_36]

Hello,

Can you please let me know which device you are using and also the document you are referring to?

Thanks,

Yatheesh

[hoji_1442086]

Hello,

I use USB CDC VCOM device.

I refer usbcdc11.pdf

thank you.

[YatheeshD_36]

Hello,

If you are using USB-Serial Devices CY7C65211/CY7C65213/CY7C65215 devices, the flow control is only enabled when the device is bound to Cypress USB-Serial CDC driver present in the path <installation directory>\USB-Serial SDK\Cypress USB-Serial Driver\DriverBinary\CDC_Driver\bin\<OS version>\<OS architecture>

Please refer to the below KBA.

USB-Serial: UART Flow Control under CDC - KBA230578

Thanks,

Yatheesh

[hoji_1442086]

Hello,

'USB-Serial: UART Flow Control under CDC - KBA230578' is PC software and dirver.

But I use Cypress MCU MB9B618 to implement USB CDC VCOM device. I don't know how to send back CTS line status.

[YatheeshD_36]

Hello,

Can you please confirm the part number again with the datasheet, that its a Cypress part?

Thanks,

Yatheesh

[hoji_1442086]

Hello,

The old part number is the MB9B560R Series.

The new part number is the CY9B560R Series.