Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_dbg.c@50:a417edff4437, 2016-01-15 (annotated)

Committer:
mbed_official
Date:
Fri Jan 15 07:45:16 2016 +0000
Revision:
50:a417edff4437
Parent:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Synchronized with git revision 6010f32619bfcbb01cc73747d4ff9040863482d9



Full URL: https://github.com/mbedmicro/mbed/commit/6010f32619bfcbb01cc73747d4ff9040863482d9/



Remove doubling of buffer size in realiseEndpoint()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 2 * @file em_dbg.c
bogdanm 0:9b334a45a8ff 3 * @brief Debug (DBG) Peripheral API
mbed_official 50:a417edff4437 4 * @version 4.2.1
bogdanm 0:9b334a45a8ff 5 *******************************************************************************
bogdanm 0:9b334a45a8ff 6 * @section License
mbed_official 50:a417edff4437 7 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
bogdanm 0:9b334a45a8ff 8 *******************************************************************************
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Permission is granted to anyone to use this software for any purpose,
bogdanm 0:9b334a45a8ff 11 * including commercial applications, and to alter it and redistribute it
bogdanm 0:9b334a45a8ff 12 * freely, subject to the following restrictions:
bogdanm 0:9b334a45a8ff 13 *
bogdanm 0:9b334a45a8ff 14 * 1. The origin of this software must not be misrepresented; you must not
bogdanm 0:9b334a45a8ff 15 * claim that you wrote the original software.
bogdanm 0:9b334a45a8ff 16 * 2. Altered source versions must be plainly marked as such, and must not be
bogdanm 0:9b334a45a8ff 17 * misrepresented as being the original software.
bogdanm 0:9b334a45a8ff 18 * 3. This notice may not be removed or altered from any source distribution.
bogdanm 0:9b334a45a8ff 19 *
bogdanm 0:9b334a45a8ff 20 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
bogdanm 0:9b334a45a8ff 21 * obligation to support this Software. Silicon Labs is providing the
bogdanm 0:9b334a45a8ff 22 * Software "AS IS", with no express or implied warranties of any kind,
bogdanm 0:9b334a45a8ff 23 * including, but not limited to, any implied warranties of merchantability
bogdanm 0:9b334a45a8ff 24 * or fitness for any particular purpose or warranties against infringement
bogdanm 0:9b334a45a8ff 25 * of any proprietary rights of a third party.
bogdanm 0:9b334a45a8ff 26 *
bogdanm 0:9b334a45a8ff 27 * Silicon Labs will not be liable for any consequential, incidental, or
bogdanm 0:9b334a45a8ff 28 * special damages, or any other relief, or for any claim by any third party,
bogdanm 0:9b334a45a8ff 29 * arising from your use of this Software.
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 ******************************************************************************/
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 #include "em_dbg.h"
bogdanm 0:9b334a45a8ff 34
mbed_official 50:a417edff4437 35 #if defined( CoreDebug_DHCSR_C_DEBUGEN_Msk )
bogdanm 0:9b334a45a8ff 36
bogdanm 0:9b334a45a8ff 37 #include "em_assert.h"
bogdanm 0:9b334a45a8ff 38 #include "em_cmu.h"
bogdanm 0:9b334a45a8ff 39 #include "em_gpio.h"
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 42 * @addtogroup EM_Library
bogdanm 0:9b334a45a8ff 43 * @{
bogdanm 0:9b334a45a8ff 44 ******************************************************************************/
bogdanm 0:9b334a45a8ff 45
bogdanm 0:9b334a45a8ff 46 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 47 * @addtogroup DBG
bogdanm 0:9b334a45a8ff 48 * @brief Debug (DBG) Peripheral API
bogdanm 0:9b334a45a8ff 49 * @{
bogdanm 0:9b334a45a8ff 50 ******************************************************************************/
bogdanm 0:9b334a45a8ff 51
bogdanm 0:9b334a45a8ff 52 /*******************************************************************************
bogdanm 0:9b334a45a8ff 53 ************************** GLOBAL FUNCTIONS *******************************
bogdanm 0:9b334a45a8ff 54 ******************************************************************************/
bogdanm 0:9b334a45a8ff 55
mbed_official 50:a417edff4437 56 #if defined( GPIO_ROUTE_SWOPEN ) || defined( GPIO_ROUTEPEN_SWVPEN )
bogdanm 0:9b334a45a8ff 57 /***************************************************************************//**
bogdanm 0:9b334a45a8ff 58 * @brief
bogdanm 0:9b334a45a8ff 59 * Enable Serial Wire Output (SWO) pin.
bogdanm 0:9b334a45a8ff 60 *
bogdanm 0:9b334a45a8ff 61 * @details
bogdanm 0:9b334a45a8ff 62 * The SWO pin (sometimes denoted SWV, serial wire viewer) allows for
bogdanm 0:9b334a45a8ff 63 * miscellaneous output to be passed from the Cortex-M3 debug trace module to
bogdanm 0:9b334a45a8ff 64 * an external debug probe. By default, the debug trace module and pin output
bogdanm 0:9b334a45a8ff 65 * may be disabled.
bogdanm 0:9b334a45a8ff 66 *
bogdanm 0:9b334a45a8ff 67 * Since the SWO pin is only useful when using a debugger, a suggested use
bogdanm 0:9b334a45a8ff 68 * of this function during startup may be:
bogdanm 0:9b334a45a8ff 69 * @verbatim
bogdanm 0:9b334a45a8ff 70 * if (DBG_Connected())
bogdanm 0:9b334a45a8ff 71 * {
bogdanm 0:9b334a45a8ff 72 * DBG_SWOEnable(1);
bogdanm 0:9b334a45a8ff 73 * }
bogdanm 0:9b334a45a8ff 74 * @endverbatim
bogdanm 0:9b334a45a8ff 75 * By checking if debugger is attached, some setup leading to higher energy
bogdanm 0:9b334a45a8ff 76 * consumption when debugger is attached, can be avoided when not using
bogdanm 0:9b334a45a8ff 77 * a debugger.
bogdanm 0:9b334a45a8ff 78 *
bogdanm 0:9b334a45a8ff 79 * Another alternative may be to set the debugger tool chain to configure
bogdanm 0:9b334a45a8ff 80 * the required setup (similar to the content of this function) by some
bogdanm 0:9b334a45a8ff 81 * sort of toolchain scripting during its attach/reset procedure. In that
bogdanm 0:9b334a45a8ff 82 * case, the above suggested code for enabling the SWO pin is not required
bogdanm 0:9b334a45a8ff 83 * in the application.
bogdanm 0:9b334a45a8ff 84 *
bogdanm 0:9b334a45a8ff 85 * @param[in] location
bogdanm 0:9b334a45a8ff 86 * Pin location used for SWO pin on the application in use.
bogdanm 0:9b334a45a8ff 87 ******************************************************************************/
bogdanm 0:9b334a45a8ff 88 void DBG_SWOEnable(unsigned int location)
bogdanm 0:9b334a45a8ff 89 {
bogdanm 0:9b334a45a8ff 90 int port;
bogdanm 0:9b334a45a8ff 91 int pin;
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 EFM_ASSERT(location < AFCHANLOC_MAX);
bogdanm 0:9b334a45a8ff 94
mbed_official 50:a417edff4437 95 #if defined ( AF_DBG_SWO_PORT )
bogdanm 0:9b334a45a8ff 96 port = AF_DBG_SWO_PORT(location);
bogdanm 0:9b334a45a8ff 97 pin = AF_DBG_SWO_PIN(location);
mbed_official 50:a417edff4437 98 #elif defined (AF_DBG_SWV_PORT )
mbed_official 50:a417edff4437 99 port = AF_DBG_SWV_PORT(location);
mbed_official 50:a417edff4437 100 pin = AF_DBG_SWV_PIN(location);
mbed_official 50:a417edff4437 101 #else
mbed_official 50:a417edff4437 102 #warning "AF debug port is not defined."
mbed_official 50:a417edff4437 103 #endif
bogdanm 0:9b334a45a8ff 104
bogdanm 0:9b334a45a8ff 105 /* Port/pin location not defined for device? */
bogdanm 0:9b334a45a8ff 106 if ((pin < 0) || (port < 0))
bogdanm 0:9b334a45a8ff 107 {
bogdanm 0:9b334a45a8ff 108 EFM_ASSERT(0);
bogdanm 0:9b334a45a8ff 109 return;
bogdanm 0:9b334a45a8ff 110 }
bogdanm 0:9b334a45a8ff 111
bogdanm 0:9b334a45a8ff 112 /* Ensure auxiliary clock going to the Cortex debug trace module is enabled */
bogdanm 0:9b334a45a8ff 113 CMU_OscillatorEnable(cmuOsc_AUXHFRCO, true, false);
bogdanm 0:9b334a45a8ff 114
bogdanm 0:9b334a45a8ff 115 /* Set selected pin location for SWO pin and enable it */
bogdanm 0:9b334a45a8ff 116 GPIO_DbgLocationSet(location);
bogdanm 0:9b334a45a8ff 117 GPIO_DbgSWOEnable(true);
bogdanm 0:9b334a45a8ff 118
bogdanm 0:9b334a45a8ff 119 /* Configure SWO pin for output */
bogdanm 0:9b334a45a8ff 120 GPIO_PinModeSet((GPIO_Port_TypeDef)port, pin, gpioModePushPull, 0);
bogdanm 0:9b334a45a8ff 121 }
bogdanm 0:9b334a45a8ff 122 #endif
bogdanm 0:9b334a45a8ff 123
bogdanm 0:9b334a45a8ff 124 /** @} (end addtogroup DBG) */
bogdanm 0:9b334a45a8ff 125 /** @} (end addtogroup EM_Library) */
mbed_official 50:a417edff4437 126 #endif /* defined( CoreDebug_DHCSR_C_DEBUGEN_Msk ) */