Lines Matching +full:frequency +full:- +full:control

4  * SPDX-License-Identifier: Apache-2.0
13  * An SWO viewer program will typically set-up the SWO port including its
14  * frequency when connected to the debug probe. Such configuration can persist
16  * re-configure the SWO port upon boot and set the frequency as specified by
18  * this frequency should much the one set by the SWO viewer program.
20  * The initialization code assumes that SWO core frequency is equal to HCLK
21  * as defined by the clock-frequency property in the CPU node. This may require
35 /* If ITM has pin control properties, apply them for SWO pins */
40 /* Set TPIU prescaler for the current debug trace clock frequency. */
46 #error "SWO reference frequency is not configured"
54 #error CONFIG_LOG_BACKEND_SWO_FREQ_HZ is too low. SWO clock divider is 16-bit. \
55 	Minimum supported SWO clock frequency is \
56 	[Reference Clock Frequency]/2^16.
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()
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()
112 	/* Configure Formatter and Flush Control Register */  in log_backend_swo_init()
113 	TPI->FFCR = 0x00000100;  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()
119 	/* Initialize pin control settings, if any are defined */  in log_backend_swo_init()