User Manual

Page 12

Firmware update

Figure 4: USB HID Bootloader connected to the Go to

Cloud (G2C) click

The Go to Cloud (G2C) click is shipped with the latest

version of ﬁrmware. However, the ﬁrmware will be

continuously improved in the future. Therefore, the Go to

Cloud (G2C) click has a ﬁrmware update option, in a form

of a micro USB connector (CN1) and an implementation

of the HID bootloader within the ﬁrmware itself.

To properly update the ﬁrmware, please use the provided

micro USB connector (CN1) with the HID bootloader

application and a proper ﬁrmware ﬁle. The JTAG 2x5-pin

header (J1) is not to be used for uploading the update

since it can destroy the base ﬁrmware and render the

G2C click inoperable. It is used only for the initial ﬁrmware

update during the production. The Go to Cloud (G2C) click

is shipped with this header unpopulated.

The ﬁrmware update can be done by using the USB HID

Bootloader application. After a USB cable is connected to

the micro USB connector on the Go to Cloud (G2C) click,

the application will detect the onboard MK64F MCU, as

displayed on the picture below: