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PSoC 5, 3 & 1 MCU

kasac_1210116
New Contributor

Hi,

I want to have a USB composite device using USBFS to have at least 4 UART instances in the host. I tried and succeed to have two. The problem I see is that each CDC interface needs 3 endpoints and it seem that USBFS can have max 8 endpoints. Is this true? Can we have more endpoints?

I am using PSOC 5LP family.

Thanks,

Kay

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1 Solution
himam_31
Employee

Hello,

The USB CDC needs 3 Endpoints. PSoC5LP has 8 endpoint and with this you will be able to implement only maximum of 2 virtual COM ports.

Endpoints are limited to 8 and cannot be increased, this is hardware specific.

Thanks,

Hima

View solution in original post

2 Replies
himam_31
Employee

Hello,

The USB CDC needs 3 Endpoints. PSoC5LP has 8 endpoint and with this you will be able to implement only maximum of 2 virtual COM ports.

Endpoints are limited to 8 and cannot be increased, this is hardware specific.

Thanks,

Hima

View solution in original post

kasac_1210116
New Contributor

Hi HimaM_31,

Thanks for your reply. That clarified my question.

Cheers,

Kaushalya

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