UM0225 datasheet(35/57 Pages) STMICROELECTRONICS

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UM0225

3 Designing with CAPS

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Only one device in a chain will be programmed at a time, not concurrently.

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Before any JTAG operation can begin, the chain order must be defined and the

instruction register length for each device must be known by the software.

Note:

The order of the chain is important when programming the devices. You must set up the chain

in your programming software such that it matches physical ordering of the devices on your

board. The multiple device view, in Project Preferences... allows you to build the JTAG-ISP

chain.Next, setup and power your target device as described in 1.2: Setting up the target

hardware.

Setup and power your target device as described in 1.2: Setting up the target hardware.

CAPS setup and the hardware are now ready for programming the device.

Click the Program Device design flow button to access the device verification and

programming dialog.

CAPS verifies the changes made in the previous design steps were applied, by clicking the

Apply button, before continuing with device programming. If the current open project settings

differ from the saved data file for the project, the dialog shown in Figure 31.: Project file

synchronization dialog gives the option to synchronize with the saved project file.

Figure 31. Project file synchronization dialog

Click Continue or Cancel to proceed without updating the programming data file. Click Update

to write the current project settings to the saved file.

If Single device view is selected in the Project Preferences... menu, the program displays

Figure 32.: Programming dialog for single device. (All discussion for the single device dialog

also applies to the multiple device dialog. The multiple device dialog provides additional

chaining options, which are discussed in 3.7.5: Chaining multiple devices).

UM0225 Datasheet(PDF) 35 Page - STMicroelectronics