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Differentiating multiple DCD-ACM's

zcab911_monster
Visitor

I have implemented a dual CDC-ACM USBX device, and would like to incorporate a mechanism to programmatically differentiate the two ACM's at the Host.  One mechanism would be to have each ACM carry with it it's own Serial Number, but I am at a loss as to how to do this.  The best way (I think) would be to incorporate a unique String Descriptor Table for each device.  Please give me a hint as to how to do this!

1 REPLY 1
KnarfB
Principal III

each chip has a 96-bit unique device id which you can read from a register or HAL and use for that.

hth

KnarfB