2021-11-22 21:35:26 +00:00
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/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Copyright (C) 2015-2020 David Sainty
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* $Id$ */
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#ifndef xbee_h__
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#define xbee_h__
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extern const char xbee_desc[];
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Use const in PROGRAMMER function arguments where appropriate
In order to get meaningful const properties for the PROGRAMMER, AVRPART and
AVRMEM arguments, some code needed to be moved around, otherwise a network of
"tainted" assignments risked rendering nothing const:
- Change void (*enable)(PROGRAMMER *pgm) to void (*enable)(PROGRAMMER *pgm,
const AVRPART *p); this allows changes in the PROGRAMMER structure after
the part is known. For example, use TPI, UPDI, PDI functions in that
programmer appropriate to the part. This used to be done later in the
process, eg, in the initialize() function, which "taints" all other
programmer functions wrt const and sometimes requires other finessing with
flags etc. Much clearer with the modified enable() interface.
- Move TPI initpgm-type code from initialize() to enable() --- note that
initpgm() does not have the info at the time when it is called whether or
not TPI is required
- buspirate.c: move pgm->flag to PDATA(pgm)->flag (so legitimate
modification of the flag does not change PROGRAMMER structure)
- Move AVRPART_INIT_SMC and AVRPART_WRITE bits from the flags field in
AVRPART to jtagmkII.c's private data flags32 fiels as FLAGS32_INIT_SMC and
FLAGS32_WRITE bits
- Move the xbeeResetPin component to private data in stk500.c as this is
needed by xbee when it saddles on the stk500 code (previously, the flags
component of the part was re-dedicated to this)
- Change the way the "chained" private data are used in jtag3.c whilst
keeping the PROGRAMMER structure read-only otherwise
- In stk500v2.c move the STK600 pgm update from stk500v2_initialize() to
stk500v2_enable() so the former keeps the PROGRAMMER structure read-only
(for const assertion).
- In usbasp change the code from changing PROGRAMMER functions late to
dispatching to TPI or regular SPI protocol functions at runtime; reason
being the decision whether to use TPI protocol is done at run-time
depending on the capability of the attached programmer
Also fixes Issue #1071, the treatment of default eecr value.
2022-08-17 15:05:28 +00:00
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void xbee_initpgm(PROGRAMMER *pgm);
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/*
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* For non-direct mode (Over-The-Air) we need to issue XBee commands
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* to the remote XBee in order to reset the AVR CPU and initiate the
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* XBeeBoot bootloader.
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*
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* XBee IO port 3 is a somewhat-arbitrarily chosen pin that can be
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* connected directly to the AVR reset pin.
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*
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* Note that port 7 was not used because it is the only pin that can
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* be used as a CTS flow control output. Port 6 is the only pin that
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* can be used as an RTS flow control input.
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*
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* Some off-the-shelf Arduino shields select a different pin. For
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* example this one uses XBee IO port 7.
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*
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* https://wiki.dfrobot.com/Xbee_Shield_For_Arduino__no_Xbee___SKU_DFR0015_
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*/
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#ifndef XBEE_DEFAULT_RESET_PIN
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#define XBEE_DEFAULT_RESET_PIN 3
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#endif
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2021-11-22 21:35:26 +00:00
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#endif
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