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Figure 48: SD card update procedure
Note: QCN will be erased after SD card update, so users must backup QCN files before downloading the new firmware.
6.3.2
USB Update
Users can use USB interface to download the new firmware. The realization process is described in
following figures.
Figure 49:
Reference circuit for USB update (UART communication)
SIM5215&SIM5216_Hardware Design_V2.02
2012-08-31
64
Содержание SIM5215
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