Peripheral Initialization

Processor Expert | View | Peripheral Initialization

The Peripheral Initialization window shows overview of peripheral initialization settings for the current CPU. It displays initialization values of all control, status and data registers of selected peripheral including single bits. The user can also see peripheral schematic diagram. Peripheral Initialization can be invoked from the View menu or from Target CPU window or using a Peripheral Initialization button in the Bean Inspector.

If the Peripheral Initialization window is docked with the Bean Inspector window, the peripheral is automatically changed according to the peripheral selection in the bean selector. Automatic changes of the peripheral can be disabled using the lock icon .

The initialization information reflects:

• CPU default settings - when the peripheral is not utilized by Embedded Bean
• Embedded Bean settings - when the peripheral is utilized by the Embedded Bean and the bean settings are correct. Peripheral Initialization Inspector shows initialization as required by Beans settings.

Registers

There is a value displayed in the middle column which will be written into the register or bit by the generated code during the initialization process of the application. In case the peripheral is allocated by a bean and the setting of the bean is incorrect, then the initialization values are not displayed in the Peripheral Initialization window. Instead, a value of the register (or bit) after reset is displayed in the right column. The after-reset values can contain also a characters with special meaning. The list and description of these characters is displayed as a hint when the mouse cursor is placed on the header of the registers table.
The values of the registers can be displayed in hexadecimal, decimal or in binary form. In case the value of the register (or bit) is not defined, an interrogation mark "?" is displayed instead of the value. In this case it is possible to display the value of the register in binary form only.

 

Figure 1 - Register List in the Peripheral Initialization window

Register details command from pop-up menu of a register (invoked by the right button click) opens a window containg detailed information for the register.

 

Figure 2 - Register Content Details

Changes Highlighting

The user can watch reflections of user settings to Embedded Bean Properties directly in CPU peripheral registers and bits. The registers influenced by a last bean settings change are highlighted with a green color (see the previous two pictures for example). The highlighting works only in the case that the bean was set-up correctly before the change was made and the new setup is correct as well and there is no error reported in a bean settings. If there is an error in a bean settings and no other bean is influencing the register, the after-reset values are are shown.

Menu

• View
  • Sort Registers by Address - If this item is checked, registers are sorted in list by their address. Otherwise they are sorted by name.
  • Group Registers - If this item is checked, groups of numbered registers with the same name are shown as expandable folders. The name of each folder is the same as the name of the registers with numbers replaced by 'xx'.
  • Show Unused Bits - This option enables/disables displaying the registers' bits unused by the manufacturer. When it is enabled, the unused bits are listed with the name 'unused'.

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  • Expand all - expands the folder and all its subfolders.
  • Collapse all - collapses the folder and all its subfolders.
• Help
  • Help - displays documentation.

Peripheral schematic

It is possible to switch peripheral initialization window style between register list, peripheral schematic and both of them using registers, schematic and both buttons. Schematic and both buttons are present only when the schematic for the current peripheral is provided.

Schematic diagram of the peripheral contains names of the control registers. Highlighting of changes of a related bean settings works also in the schematic mode.

• If the user places mouse cursor on the register name, the hint containing register description and address is shown.
• When the user clicks the register name with the left mouse button, new dialog window containing detailed information (including initialization value) for the register is shown. The register bits affected by a changes are highlighted.

Notice: Peripheral schematics view is available only in the 56F800/E version.

 

Figure 3 - Schematic Diagram of the Peripheral

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