added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
Diff: targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h
- Revision:
- 0:9b334a45a8ff
- Child:
- 54:2a2065e67ef6
diff -r 000000000000 -r 9b334a45a8ff targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h Thu Oct 01 15:25:22 2015 +0300 @@ -0,0 +1,96 @@ +/***************************************************************************//** + * @file device_peripherals.h + ******************************************************************************* + * @section License + * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> + ******************************************************************************* + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + * + * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no + * obligation to support this Software. Silicon Labs is providing the + * Software "AS IS", with no express or implied warranties of any kind, + * including, but not limited to, any implied warranties of merchantability + * or fitness for any particular purpose or warranties against infringement + * of any proprietary rights of a third party. + * + * Silicon Labs will not be liable for any consequential, incidental, or + * special damages, or any other relief, or for any claim by any third party, + * arising from your use of this Software. + * + ******************************************************************************/ +#ifndef MBED_DEVICE_PERIPHERALS_H +#define MBED_DEVICE_PERIPHERALS_H + +/* us ticker */ +#define US_TICKER_TIMER TIMER1 +#define US_TICKER_TIMER_CLOCK cmuClock_TIMER1 +#define US_TICKER_TIMER_IRQ TIMER1_IRQn + +/* PWM */ +#define PWM_TIMER TIMER0 +#define PWM_TIMER_CLOCK cmuClock_TIMER0 +#define PWM_ROUTE TIMER_ROUTE_LOCATION_LOC0 + +/* USB */ +#define USB_TIMER USB_TIMER2 + +/* Clocks */ + +/* Clock definitions */ +#define LFXO 0 +#define HFXO 1 +#define LFRCO 2 +#define HFRCO 3 +#if !defined(_EFM32_GECKO_FAMILY) +#define ULFRCO 4 +#endif + +/* Low Energy peripheral clock source. + * Options: + * * LFXO: external crystal, please define frequency. + * * LFRCO: internal RC oscillator (32.768kHz) + * * ULFRCO: internal ultra-low power RC oscillator (available down to EM3) (1kHz) + */ +#define LOW_ENERGY_CLOCK_SOURCE LFXO + +/** Core clock source. + * Options: + * * HFXO: external crystal, please define frequency. + * * HFRCO: High-frequency internal RC oscillator. Please select band as well. + */ +#define CORE_CLOCK_SOURCE HFXO + +/** HFRCO frequency band + * Options: + * * CMU_HFRCOCTRL_BAND_28MHZ + * * CMU_HFRCOCTRL_BAND_21MHZ + * * CMU_HFRCOCTRL_BAND_14MHZ + * * CMU_HFRCOCTRL_BAND_11MHZ + * * CMU_HFRCOCTRL_BAND_7MHZ + * * CMU_HFRCOCTRL_BAND_1MHZ + */ +#define HFRCO_FREQUENCY CMU_HFRCOCTRL_BAND_14MHZ + +#define LFXO_FREQUENCY 32768 +#define HFXO_FREQUENCY 24000000 + +#if (LOW_ENERGY_CLOCK_SOURCE == LFXO) +#define LOW_ENERGY_CLOCK_FREQUENCY LFXO_FREQUENCY +#elif (LOW_ENERGY_CLOCK_SOURCE == LFRCO) +#define LOW_ENERGY_CLOCK_FREQUENCY 32768 +#elif (LOW_ENERGY_CLOCK_SOURCE == ULFRCO) +#define LOW_ENERGY_CLOCK_FREQUENCY 1000 +#else +#error "Unknown Low Energy Clock selection" +#endif + +#endif