AN668 データシートの表示（PDF） - Silicon Laboratories

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AN668

PRECISION32™ SOFTWARE DEVELOPMENT KIT CODE

Silicon Laboratories 

AN668

5.2.3. gPB.c

This file includes two functions: gPB_enter_off_config() and gPB_enter_default_config().

The gPB_enter_off_config() function is called by gModes_enter_my_off_mode() in gModes.c and sets all the

pins to digital input mode, disables crossbar 1, and disables the APB clock to the port registers.

The gPB_enter_default_config() function:

Enables the APB clock to the port registers.

Sets the SWV pin to push-pull.

Enables crossbar 1.

Sets the PB2.10 and PB2.11 pins to push-pull.

Sets the PB2.8 and PB2.9 pins to digital input mode.

Configures the PB0.9 and PB0.10 RTC0 oscillator input pins as analog inputs.

Configures PB2.7 to output the RTC0 clock by setting PB2.7 to push-pull, skipping the PB2.0-PB2.6 pins

on crossbar 1, and enabling the oscillator output on crossbar 1.

Figure 10 shows the dependencies for gPB.c.

gPB.c

Blinky

si32Hal

SI32_CLKCTRL_A_Type.c

SI32_PBSTD_A_Type.c

SI32_PBCFG_A_Type.c

Figure 10. gPB.c Dependencies

8

Rev. 0.1

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