| Peripheral Clock and Power Control | ||
|---|---|---|
 | Chapter 295. LPC1XXX Variant HAL |  |
Name
Peripheral Clock and Power Control — Description
Synopsis
#include <cyg/hal/hal_io.h>
pin = CYGHWR_HAL_LPC1XXX_CLOCK(
device
,
divider
);
CYGHWR_HAL_LPC1XXX_CLOCK_ENABLE
(
desc
);
CYGHWR_HAL_LPC1XXX_CLOCK_DISABLE
(
desc
);
Description
The LPC1XXX HAL provides a number of macros to support the
management of peripheral power supply and clock frequencies. The
macro
CYGHWR_HAL_LPC1XXX_CLOCK( device, divider )
encodes a control descriptor into a 32 bit value. The first
argument is the name of the device to be described. The second
argument gives the divider to be applied to CCLK for the
peripheral clock; it can take the values 1, 2, 4 or 8 for most
peripherals and 6 (instead of 8) for the CAN device.
The remaining functions all take a peripheral clock/power
descriptor as an
argument. CYGHWR_HAL_LPC1XXX_CLOCK_ENABLE( desc
) turns on the power to the peripheral and sets the
clock to the rate given in the descriptor.
Likewise CYGHWR_HAL_LPC1XXX_CLOCK_DISABLE( desc
) disables the power to the device.
| |  | |
| GPIO Support |  | Chapter 296. MCB1700 Platform HAL |
| 2024-12-10 | eCosPro Non-Commercial Public License |