bsp_trace.c
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00018 #include <stdbool.h>
00019 #include "em_device.h"
00020 #include "em_gpio.h"
00021 #include "em_cmu.h"
00022 #include "bsp_trace.h"
00023 #include "bsp.h"
00024
00025 #if defined( BSP_ETM_TRACE ) && defined( ETM_PRESENT )
00026
00030 void BSP_TraceEtmSetup(void)
00031 {
00032
00033 CMU->HFCORECLKEN0 |= CMU_HFCORECLKEN0_LE;
00034 CMU->HFPERCLKEN0 |= CMU_HFPERCLKEN0_GPIO;
00035 CMU->OSCENCMD = CMU_OSCENCMD_AUXHFRCOEN;
00036
00037
00038 while (!(CMU->STATUS & CMU_STATUS_AUXHFRCORDY)) ;
00039
00040
00041 GPIO->P[3].MODEL = (GPIO->P[3].MODEL & ~_GPIO_P_MODEL_MODE3_MASK) | GPIO_P_MODEL_MODE3_PUSHPULL;
00042 GPIO->P[3].MODEL = (GPIO->P[3].MODEL & ~_GPIO_P_MODEL_MODE4_MASK) | GPIO_P_MODEL_MODE4_PUSHPULL;
00043 GPIO->P[3].MODEL = (GPIO->P[3].MODEL & ~_GPIO_P_MODEL_MODE5_MASK) | GPIO_P_MODEL_MODE5_PUSHPULL;
00044 GPIO->P[3].MODEL = (GPIO->P[3].MODEL & ~_GPIO_P_MODEL_MODE6_MASK) | GPIO_P_MODEL_MODE6_PUSHPULL;
00045
00046
00047 GPIO->P[3].MODEL = (GPIO->P[3].MODEL & ~_GPIO_P_MODEL_MODE7_MASK) | GPIO_P_MODEL_MODE7_PUSHPULL;
00048
00049
00050 GPIO->ROUTE = GPIO->ROUTE | GPIO_ROUTE_TCLKPEN | GPIO_ROUTE_TD0PEN | GPIO_ROUTE_TD1PEN
00051 | GPIO_ROUTE_TD2PEN | GPIO_ROUTE_TD3PEN
00052 | GPIO_ROUTE_ETMLOCATION_LOC0;
00053 }
00054 #endif
00055
00056 #if defined( _GPIO_ROUTE_SWOPEN_MASK ) || defined( _GPIO_ROUTEPEN_SWVPEN_MASK )
00057
00063 void BSP_TraceSwoSetup(void)
00064 {
00065
00066 #if defined( _CMU_HFPERCLKEN0_GPIO_MASK )
00067 CMU->HFPERCLKEN0 |= CMU_HFPERCLKEN0_GPIO;
00068 #elif defined( _CMU_HFBUSCLKEN0_GPIO_MASK )
00069 CMU->HFBUSCLKEN0 |= CMU_HFBUSCLKEN0_GPIO;
00070 #endif
00071
00072
00073 #if defined( _GPIO_ROUTE_SWOPEN_MASK )
00074 GPIO->ROUTE |= GPIO_ROUTE_SWOPEN;
00075 #elif defined( _GPIO_ROUTEPEN_SWVPEN_MASK )
00076 GPIO->ROUTEPEN |= GPIO_ROUTEPEN_SWVPEN;
00077 #endif
00078
00079
00080 #if defined( _GPIO_ROUTE_SWOPEN_MASK )
00081 GPIO->ROUTE = (GPIO->ROUTE & ~(_GPIO_ROUTE_SWLOCATION_MASK)) | BSP_TRACE_SWO_LOCATION;
00082 #elif defined( _GPIO_ROUTEPEN_SWVPEN_MASK )
00083 GPIO->ROUTELOC0 = (GPIO->ROUTELOC0 & ~(_GPIO_ROUTELOC0_SWVLOC_MASK)) | BSP_TRACE_SWO_LOCATION;
00084 #endif
00085
00086
00087 TRACE_ENABLE_PINS();
00088
00089
00090 CMU->OSCENCMD = CMU_OSCENCMD_AUXHFRCOEN;
00091
00092
00093 while (!(CMU->STATUS & CMU_STATUS_AUXHFRCORDY)) ;
00094
00095
00096 CoreDebug->DHCSR |= CoreDebug_DHCSR_C_DEBUGEN_Msk;
00097 CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
00098
00099
00100 DWT->CTRL = 0x400113FF;
00101
00102
00103 TPI->ACPR = 15;
00104
00105
00106 TPI->SPPR = 2;
00107
00108
00109 TPI->FFCR = 0x100;
00110
00111
00112 ITM->LAR = 0xC5ACCE55;
00113 ITM->TCR = 0x10009;
00114
00115
00116 ITM->TER |= (1UL << 0);
00117 }
00118 #endif
00119
00120
00121 #if defined( _GPIO_ROUTE_SWOPEN_MASK ) || defined( _GPIO_ROUTEPEN_SWVPEN_MASK )
00122
00128 bool BSP_TraceProfilerSetup(void)
00129 {
00130 volatile uint32_t *userData = (uint32_t *) USER_PAGE;
00131
00132
00133 if (*userData == 0x00000000UL)
00134 {
00135 return false;
00136 }
00137 else
00138 {
00139 BSP_TraceSwoSetup();
00140 return true;
00141 }
00142 }
00143 #endif