Cypress MB91460 Handmatig - Pagina 6

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Enable external memory emulation for chip select 0 area as RAM type. This will force the evaluation MCU to use the

external SRAM on MB2198-300, which is connected to the external bus, as memory for the debug session.

If you use the template project for project startup, the *.sup file calls two procedure files when starting debug session.

Before the code is loaded to external emulation RAM, the prc-file 'Ext_Emu_RAM_before_load.prc' initializes the

memory area for code download. After the download, prc-file 'Ext_Emu_RAM_after_load.prc' is called which

initializes the MCU for run mode.

This type of emulation system has the advantage that you can debug directly on your target system without the need

of a connector socket for the DSU cable on the target system itself. You only have to mount a socket instead of the

MB91461R chip for connection of the header board. Because of the usage of the external emulation memory you can

use full 8MB size, not caring about the amount of memory connected on your target system.

Evaluation system with MB91461R

This chapter describes the evaluation system containing the target chip MB91461R.

The emulator can be directly connected to debug support unit (DSU4) on MB91461R. This is a main difference to

other MB91460 series derivates.

The system consists of following devices:

▪

DSU-FR Emulator MB2198-01

▪

DSU-FR Cable MB2198-10

▪

Starterkit SK91461 or own target application with mounted MB91461R chip and connector for DSU cable

www.cypress.com

Figure 4. Enable external memory emulation

Document No. 002-05206 Rev. *C

FR Family MB91460 Series MB91461R Emulation