Installation Instructions

SIM5216A _HD_V1.02 Hardware Design

SIM5216A _HD_V1.02 26.08.2010

Figure 34：SD card update reference circuit

Figure 35：SD card update procedure

Note1: Firmware contains

：

Amss.mbn, dbl.mbn, osbl.mbn, fsbl.mbn, partition.mbn,

NPRG6270.hex, ENPRG6270.hex.

Note2: Pulling down GPIO0 when SIMcom module is booting up, is to enable the SD Card

Update function.

Note3: The status LED(GPIO1) indicates that the update is going on when booting.

Note4: This update function does not support QCN. So if the flash in the modules will be erased,

please do backup QCN by QDL at first.

Note5: This function is supported by the version 1575B04V01SIM5216A and later version.

Note6: Modules in user equipment must connect a SD slot.

Note7: Modules GPIO0 can be controlled by a GPIO on CPU/MCU, and must be pulled up

after the status LED lighting . This connecting may conflict with PCM function because

GPIO0 is multiplexed as the PCM_DIN.

3.19.2 USB interface update.

If SIM5216A communicate with MCU/CPU by hardware UART interface, user can route module

USB to a USB-A/USB-B/mini-B slot, and connect USB slot to PC with USB cable .Figure 36 is

the reference circuit.