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52 lines
2.1 KiB
52 lines
2.1 KiB
7 years ago
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Ayke van Laethem
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_LIB_UTILS_SEMIHOSTING_H
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#define MICROPY_INCLUDED_LIB_UTILS_SEMIHOSTING_H
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/*
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To use semi-hosting for a replacement UART:
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- Add lib/semihosting/semihosting.c to the Makefile sources.
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- Call mp_semihosting_init() in main(), around the time UART is initialized.
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- Replace mp_hal_stdin_rx_chr and similar in mphalport.c with the semihosting equivalent.
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- Include lib/semihosting/semihosting.h in the relevant files.
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Then make sure the debugger is attached and enables semihosting. In OpenOCD this is
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done with ARM semihosting enable followed by reset. The terminal will need further
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configuration to work with MicroPython (bash: stty raw -echo).
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*/
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#include <stddef.h>
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#include <stdint.h>
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void mp_semihosting_init();
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int mp_semihosting_rx_char();
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uint32_t mp_semihosting_tx_strn(const char *str, size_t len);
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uint32_t mp_semihosting_tx_strn_cooked(const char *str, size_t len);
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#endif // MICROPY_INCLUDED_LIB_UTILS_SEMIHOSTING_H
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