added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_dbg.c
- Committer:
- mbed_official
- Date:
- 2016-01-15
- Revision:
- 50:a417edff4437
- Parent:
- 0:9b334a45a8ff
- Child:
- 144:ef7eb2e8f9f7
File content as of revision 50:a417edff4437:
/***************************************************************************//** * @file em_dbg.c * @brief Debug (DBG) Peripheral API * @version 4.2.1 ******************************************************************************* * @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. * ******************************************************************************/ #include "em_dbg.h" #if defined( CoreDebug_DHCSR_C_DEBUGEN_Msk ) #include "em_assert.h" #include "em_cmu.h" #include "em_gpio.h" /***************************************************************************//** * @addtogroup EM_Library * @{ ******************************************************************************/ /***************************************************************************//** * @addtogroup DBG * @brief Debug (DBG) Peripheral API * @{ ******************************************************************************/ /******************************************************************************* ************************** GLOBAL FUNCTIONS ******************************* ******************************************************************************/ #if defined( GPIO_ROUTE_SWOPEN ) || defined( GPIO_ROUTEPEN_SWVPEN ) /***************************************************************************//** * @brief * Enable Serial Wire Output (SWO) pin. * * @details * The SWO pin (sometimes denoted SWV, serial wire viewer) allows for * miscellaneous output to be passed from the Cortex-M3 debug trace module to * an external debug probe. By default, the debug trace module and pin output * may be disabled. * * Since the SWO pin is only useful when using a debugger, a suggested use * of this function during startup may be: * @verbatim * if (DBG_Connected()) * { * DBG_SWOEnable(1); * } * @endverbatim * By checking if debugger is attached, some setup leading to higher energy * consumption when debugger is attached, can be avoided when not using * a debugger. * * Another alternative may be to set the debugger tool chain to configure * the required setup (similar to the content of this function) by some * sort of toolchain scripting during its attach/reset procedure. In that * case, the above suggested code for enabling the SWO pin is not required * in the application. * * @param[in] location * Pin location used for SWO pin on the application in use. ******************************************************************************/ void DBG_SWOEnable(unsigned int location) { int port; int pin; EFM_ASSERT(location < AFCHANLOC_MAX); #if defined ( AF_DBG_SWO_PORT ) port = AF_DBG_SWO_PORT(location); pin = AF_DBG_SWO_PIN(location); #elif defined (AF_DBG_SWV_PORT ) port = AF_DBG_SWV_PORT(location); pin = AF_DBG_SWV_PIN(location); #else #warning "AF debug port is not defined." #endif /* Port/pin location not defined for device? */ if ((pin < 0) || (port < 0)) { EFM_ASSERT(0); return; } /* Ensure auxiliary clock going to the Cortex debug trace module is enabled */ CMU_OscillatorEnable(cmuOsc_AUXHFRCO, true, false); /* Set selected pin location for SWO pin and enable it */ GPIO_DbgLocationSet(location); GPIO_DbgSWOEnable(true); /* Configure SWO pin for output */ GPIO_PinModeSet((GPIO_Port_TypeDef)port, pin, gpioModePushPull, 0); } #endif /** @} (end addtogroup DBG) */ /** @} (end addtogroup EM_Library) */ #endif /* defined( CoreDebug_DHCSR_C_DEBUGEN_Msk ) */