Jannes De Brabandere

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11 years, 4 months ago.

Possible to use the 2 USB ports?

Hi

Is it possible to use the 2 USB ports on the freescale KL25Z? Can they both be used for midi host?

Thanks

Question relating to:

Last updated: 30 Jun 2020
The FRDM-KL25Z is an ultra-low-cost development platform for Kinetis L Series KL1x (KL14/15) and KL2x (KL24/25) MCUs built on ARM® Cortex™-M0+ processor. Features include easy access to MCU I/O, battery-ready, …

2 Answers

Erik -
11 years, 4 months ago.

The OpenSDA port is only used for programming, debugging and as virtual com port.

The second one can be used as midi host I think, although currently mbed USB libraries only support the KL25Z as USBDevice, and not host.

Neil Thiessen
11 years, 3 months ago.

No. The OpenSDA port is connected to a separate microcontroller, a Kinetis K20 if I'm not mistaken. This microcontroller acts as an SWD programmer, serial to USB adaptor, and CMSIS-DAP debugger to the primary microcontroller, which is a KL25Z.