AN1356 STMicroelectronics, AN1356 Datasheet - Page 20

• Manufacturer Part Number: AN1356
• Description: PSDSOFT EXPRESS AND PSD4235G2 DESIGN GUIDE
• Manufacturer: STMicroelectronics

AN1356 - APPLICATION NOTE
Figure 23. Merge MCU Firmware
In the left column are individual PSD memory segment chip-selects (FS0, FS1, and so on). The next
column shows the logic equations for selection of each internal PSD memory segment. These equations
reflect the choices that you made while defining PSD internal chip-select equations in an earlier step. In
the middle of the screen are hexadecimal start and stop addresses that PSDsoft Express has filled in for
you based on your chip-select equations. On the right are fields to enter (browse) the MCU firmware files.
Select ‘Intel Hex Record’ for ‘Record Type’ as shown. Select ‘Direct’ for ‘Mapping Mode’. This maps the
MCU addresses residing inside the Hex file directly to the corresponding addresses within the range of
the file start and stop addresses that are typed into the boxes. ‘Direct’ is the most typical setting. ‘Relative’
mode will place contents of the specified Hex file starting at the beginning of a physical PSD memory
segment, in other words, no offset from the base of the physical memory segment. ‘Relative’ is used only
for very unique applications.
Scroll all the way down to the bottom to get to the secondary Flash memory. Now, click Browse… for
csboot0 and select the firmware file, PSDexpress\examples\boot_32K.hex. Repeat for csboot1, csboot2,
and csboot3 specifying this same file name for each. Once you have filled in the file names, your screen
should look like the one below:
20/49