UM0225 datasheet(25/57 Pages) STMICROELECTRONICS

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UM0225

3 Designing with CAPS

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3.4

Specifying peripheral and GPIO pin assignment

Click the Peripheral/Pin Assignment tab to select the peripherals for your design. Pin

resources are dynamically allocated and de-allocated based on peripheral selection. Therefore,

the peripheral selection sequence directly affects pin resource assignment.

Note:

The selected peripherals affect the initialization module in the HAL library. A default C-header

file, 91x_conf.H, is automatically generated to be included with the HAL library source code. It

is recommended to generate a C-header file to be included in your source code, as described

in Section 3.3.3, to facilitate integration of the CAPS design and initialization.

Figure 17.: Peripheral/Pin Assignment tab shows a list of peripherals available for the target

device.

Figure 17. Peripheral/Pin Assignment tab

Select a peripheral from the list and click the Assign>> button to assign the pin, moving it to the

list in the right window.

As peripherals are assigned, a dialog window displays configurable peripheral parameters.

Enter the desired information and values to configure the peripheral. For peripherals that have

predefined pin assignments, the following prompt is displayed to either accept the default

assignment or enter a different pin assignment.

Figure 18. Accept default pin assignment prompt

UM0225 데이터시트(PDF) 25 Page - STMicroelectronics