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57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdio.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "xtensa-debug-module.h"
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#include "eri.h"
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bool xt_trax_trace_is_active(void)
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{
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return eri_read(ERI_TRAX_TRAXSTAT)&TRAXSTAT_TRACT;
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}
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static void _xt_trax_start_trace(bool instructions)
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{
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uint32_t v;
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eri_write(ERI_TRAX_PCMATCHCTRL, 31); //do not stop at any pc match
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v=TRAXCTRL_TREN | TRAXCTRL_TMEN | TRAXCTRL_PTOWS | (1<<TRAXCTRL_SMPER_SHIFT);
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if (instructions) {
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v|=TRAXCTRL_CNTU;
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}
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//Enable trace. This trace has no stop condition and will just keep on running.
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eri_write(ERI_TRAX_TRAXCTRL, v);
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}
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void xt_trax_start_trace_instructions(void)
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{
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_xt_trax_start_trace(true);
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}
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void xt_trax_start_trace_words(void)
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{
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_xt_trax_start_trace(false);
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}
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void xt_trax_trigger_traceend_after_delay(int delay)
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{
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eri_write(ERI_TRAX_DELAYCNT, delay);
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eri_write(ERI_TRAX_TRAXCTRL, eri_read(ERI_TRAX_TRAXCTRL)|TRAXCTRL_TRSTP);
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//ToDo: This will probably trigger a trace done interrupt. ToDo: Fix, but how? -JD
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eri_write(ERI_TRAX_TRAXCTRL, 0);
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}
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