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Connect to target button, Download code button – Zilog Z8F0130 User Manual

Page 52

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Using the Integrated Development Environment

UM013037-1212

28

Zilog Developer Studio II – Z8 Encore!
User Manual

Connect to Target Button

The

Connect to Target

button starts a debug session using the following process:

1. Initializes the communication to the target hardware.

2. Resets the device.

3. Configures the device using the settings in the

Configure Target

dialog box.

4. Configures and executes the debugger options selected in the

Debugger

tab of the

Options

dialog box. The following options are ignored if selected:

Reset to Symbol 'main' (Where Applicable)

checkbox

Verify File Downloads – Read After Write

checkbox

Verify File Downloads – Upon Completion

checkbox

This button does not download the software. Use this button to access target registers,
memory, and so on without loading new code or to avoid overwriting the target’s code
with the same code. This button is not enabled when the target is the simulator. This button
is available only when not in

Debug

mode.

For the Serial Smart Cable, ZDS II performs an on-chip debugger reset and resets the CPU
at the vector reset location.

Download Code Button

The

Download Code

button downloads the executable file for the currently open project

to the target for debugging. The button also initializes the communication to the target
hardware if it has not been done yet. Starting in version 4.10.0, the

Download Code

but-

ton can also program Flash memory. A page erase is done instead of a mass erase for both
internal and external Flash memory. Use this button anytime during a debug session. This
button is not enabled when the target is the simulator.

The current code on the target is overwritten.

If ZDS II is not in

Debug

mode when the

Download Code

button is clicked, the following

process is executed:

1. Initializes the communication to the target hardware.

2. Resets the device with a hardware reset by driving pin #2 of the debug header low.

3. Configures the device using the settings in the

Configure Target

dialog box.

4. Downloads the program.

5. Issues a software reset through the debug header serial interface.

Note: