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UM2153 bảng dữ liệu(PDF) 16 Page - STMicroelectronics

tên linh kiện UM2153
Giải thích chi tiết về linh kiện  Discovery kit for IoT node, multi-channel communicationwith STM32L4
PDF  57 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM2153 bảng dữ liệu(HTML) 16 Page - STMicroelectronics

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Hardware layout and configuration
UM2153
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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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