Lines Matching +full:timestamp +full:- +full:prescaler

4  * SPDX-License-Identifier: Apache-2.0
13  * An SWO viewer program will typically set-up the SWO port including its
16  * re-configure the SWO port upon boot and set the frequency as specified by
21  * as defined by the clock-frequency property in the CPU node. This may require
40 /* Set TPIU prescaler for the current debug trace clock frequency. */
54 #error CONFIG_LOG_BACKEND_SWO_FREQ_HZ is too low. SWO clock divider is 16-bit. \
84 	log_output_func(&log_output_swo, &msg->log, flags);  in log_backend_swo_process()
96 	CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;  in log_backend_swo_init()
98 	ITM->LAR  = 0xC5ACCE55;  in log_backend_swo_init()
99 	/* Disable stimulus ports ITM_STIM0-ITM_STIM31 */  in log_backend_swo_init()
100 	ITM->TER  = 0x0;  in log_backend_swo_init()
102 	ITM->TCR  = 0x0;  in log_backend_swo_init()
104 	TPI->SPPR = IS_ENABLED(CONFIG_LOG_BACKEND_SWO_PROTOCOL_NRZ) ? 2 : 1;  in log_backend_swo_init()
105 	/* Set SWO baud rate prescaler value: SWO_clk = ref_clock/(ACPR + 1) */  in log_backend_swo_init()
106 	TPI->ACPR = SWO_FREQ_DIV - 1;  in log_backend_swo_init()
108 	ITM->TPR  = 0x0;  in log_backend_swo_init()
110 	DWT->CTRL &= (DWT_CTRL_POSTPRESET_Msk | DWT_CTRL_POSTINIT_Msk | DWT_CTRL_CYCCNTENA_Msk);  in log_backend_swo_init()
111 	DWT->CTRL |= (DWT_CTRL_POSTPRESET_Msk | DWT_CTRL_POSTINIT_Msk);  in log_backend_swo_init()
113 	TPI->FFCR = 0x00000100;  in log_backend_swo_init()
114 	/* Enable ITM, set TraceBusID=1, no local timestamp generation */  in log_backend_swo_init()
115 	ITM->TCR  = 0x0001000D;  in log_backend_swo_init()
117 	ITM->TER  = 1 << ITM_PORT_LOGGER;  in log_backend_swo_init()