UM2153 datasheet(16/57 Pages) STMICROELECTRONICS

Datenblatt-Suchmaschine für elektronische Bauteile

UM2153 Datenblatt(PDF) 16 Page - STMicroelectronics

Teilenummer	UM2153

Bauteilbeschribung	Discovery kit for IoT node, multi-channel communicationwith STM32L4

PDF	57 Pages

Scroll/Zoom	100%

Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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16 / 57 page

Hardware layout and configuration

UM2153

16/57

DocID030118 Rev 3

Figure 9. JP4: 5V_USB_FS

•

5V_VBAT (see Figure 10) is the DC power coming from external. In this case, jumper of

JP4 should be on pins 7 and 8 to select the 5V_VBAT power source on silkscreen of

JP4.

Figure 10. JP4: 5V_VBAT

•

5V_USB_CHARGER (see Figure 11) is the DC power charger connected to the USB

ST-LINK (CN7). To select the 5V_USB_CHARGER power source on silkscreen of JP4,

the jumper of JP4 should be on pins 9 and 10. In this case, if the STM32L4 Discovery kit

for IoT node is powered by an external USB charger then the debug is not available. If

the PC is connected instead of the charger, the limitation is no longer effective and the

PC could be damaged.

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