Freescale Semiconductor Microcontrollers Uživatelský manuál stáhnout pdf (Strana 368)

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HC08 P&E Multilink/Cyclone Pro Connection

Connection Procedure

368

Microcontrollers Debugger Manual

Advanced Settings Tab

The Advanced Settings tab of the P&E Connection Manager window allows the user to set

specific protocol settings. The following is an explanation of each part of the advanced

settings dialog box.

Figure 14.7 Advanced Settings Tab

Tpd And Tpu Timing Textboxes

Tpd and Tpu set the power-down and power-up delay that is observed when power-

cycling a target for entry into Monitor Mode. These settings are only valid for devices

with automatically controlled power.

Whenever power is automatically switched off, or is manually requested to be switched

off, the software waits for an amount of time equal to the Tpd delay time before

proceeding to the connection protocol. This is because a board or power supply may have

capacitance which holds the power up for a short time after the supply has been switched

off, but the supply voltage must reach less than 0.1v before it is turned back on if a Power-

On reset is to occur.

Whenever power is automatically switched on, or is manually requested to be switched on,

the software waits for an amount of time equal to the Tpu delay time before attempting to

contact the 68HC08 processor. This is to allow time not only for power to be fully

available, but to wait until any reset driver has finally released the RESET line.

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