User guide

Redpine Signals, Inc. Proprietary and Confidential. Page 190
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Figure 41: Firmware Upgrade - Flow 2
Power up
Load Firmware/iuinst1
(step #2)
Load Firmware/iuinst2
(step #3)
Load Firmware/iudata
(step #4)
Bring module out of
soft reset
Load Firmware/ffinst1
(step #7 and 8)
Load Firmware/ffinst2
(step #9 and 10)
Load Firmware/ffdata
(step #11)
Power Cycle
SPI interface
initialization
Write 0x00000001 to
the address
0x22000004
SPI interface initialization
Write 0x00000001 to the address
0x22000004
Load WFU/cuinst1 (step #2) (file
name is different from iuinst1, step
is same)
Load WFU/cuinst2 (step #3) (file
name is different from iuinst2, step
is same)
Load WFU/cudata (step #4) (file
name is different from iudata, step
is same)
Bring module out of soft reset
Interrupt received, read Card Ready
status (step #6)
Load WFU/cfinst1(step #7 and 8)
(file name is different from ffinst1,
step is same)
Load WFU/cfinst2 (step #9 and 10)
(file name is different from ffinst2,
step is same)
Load WFU/cfdata (step #11) (file
name is different from ffdata, step is
same)
Reset module
Interrupt received,
read Card Ready
status (step #6)
Ready for normal
operation