Download to Serial Flash Memory

SH726A/SH726B Group
Example of E10A-USB Flash Memory Download Function
(Download to the Serial Flash Memory)
6.8
Flowcharts
This section describes the procedure of major functions used in the sample code.
6.8.1
Erase Module
Figure 6.4 shows the flowchart of the erase module.
_ERASE_ENTRY
Described in the assembly language
Set a stack pointer
Swap out the register
Swap out the general register of R0 to R7
Execute the main processing of the
module
fmtool_init()
Swap in the register
return
Figure 6.4 Erase Module
6.8.2
Write Module
Figure 6.5 shows the flowchart of the write module.
_WRITE_ENTRY
Described in the assembly language
Set a stack pointer
Swap out the general register R1 to R7 to use the
register R0 for the return value
Swap out the register
Execute the main processing of the
module
fmtool_write()
Swap in the register
return (return value of fmtool_write)
Figure 6.5 Write Module
R01AN1178EJ0100 Rev.1.00
Jun. 25, 2012
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