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/*
* Simple ARM debug interface for Arduino, using libswd
*
* Copyright (c) 2013 Micah Elizabeth Scott
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
class ARMDebug
{
public:
// Init or de-init the debug interface itself
void begin(unsigned clockPin, unsigned dataPin);
void end();
/*
* Identify the connected chip. Tries to reset it, put it in SWD mode,
* and log its identity. If successful, this returns 'true'. If something is wrong
* (the chip isn't responding) returns 'false', and logs an error.
*/
bool identify();
// Low-level interface (LSB-first)
void mosi_transfer(uint32_t data, unsigned nBits);
uint32_t miso_transfer(unsigned nBits);
void mosi_trn(unsigned nClocks);
void miso_trn(unsigned nClocks);
private:
uint8_t clockPin, dataPin;
void *context; // libswd context (opaque type)
};