AP32113 datasheet(21/38 Pages) INFINEON

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AP32113

Connecting Memory to the TC1130 External Bus Unit

(EBU)

Application Note

V1.0, 2006-02

3. Now the code is ready to compile.

4. Compile the BlinkyFlash program and copy the elf file to appropriate directory (obj)

in Flash load Program. This FlashLoad Program is used to load the blinky application

in to Burst flash device.

5. Load the FlashLoad program using the debugger and run it.

Note: This should run the FlashLoad program from SDRAM, starting at address

0xA4000000. Indeed, the Flash needs to be located at 0xA0000000.

6. Launch the CrossViewPro debugger and run, It will open a Terminal window: FSS0.

This is the link between the Tricore and your hard-drive where the 'BlinkyFlash.elf' file

is stored.

Note: you might have to change the execution environment configuration file if you have

installed Tasking somewhere else than the default location: 'c:\program

files\tasking\ctc v2.0\etc\infineon_triboard_tc1130.cfg'

Note: FlashLoad program should be written in such way to ask for the application elf file

as described above

7. In the 'Terminal' window, enter 'obj\BlinkyFlash.elf' (without quotes), If the File and

your Flash are recognized, the program first erases the Flash and then programs it.

8. Put the OCDS Jumper (close to the serial port) to Position 2

Note: Refer to the Triboard Manual for details

9. Change the Jumper Settings to 'OFF-OFF-ON'

Note: This is the normal setting for external boot from 0xA0000000

10. You can press the Reset Button

Note: Once again you can see that the LED is blinking slower than when it was running

from SDRAM. The Flash is indeed a slower device than an SDRAM. The EBU

parameters used here are really basic. Those parameters need to be optimized by

looking deeper in the Flash device datasheet.

2.8.1

Bus Access Timings for Interfacing Intel BF device to TC1130

EBU

As explained earlier all major timings parameters of EBU can be programmed as to meet

the external device specifications, BUSCON.MULTMAP parameter is used to decide for

which time component a multiplier is used.

Below figures show an example of accessing an Intel-Style demultiplexed device for

both read and write accesses. This shows the insertion of delay cycles (shown shaded)

to adjust the access cycle to the device’s timing requirements. Both read and write

accesses begin with a two cycle Address Phase followed by a two cycle Command

Delay Phase.

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