2019-06-04 19:12:17 +02:00
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/****************************************************************************
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* arch/makerlisp/include/board.h
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __CONFIGS_MAKERLISP_INCLUDE_BOARD_H
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#define __CONFIGS_MAKERLISP_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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2019-06-16 17:09:23 +02:00
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/* Clocking
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*
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* The MakerLisp CPU board has a 5Mhz crystal. This is multiplied by 10 by
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* the PLL to obtain a system clock frequency of 50MHz. See the PLL setup
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* in scripts/makerlisp.linkcmd.
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*/
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2019-06-04 19:12:17 +02:00
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#define EZ80_SYS_CLK_FREQ 50000000
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/* LEDs */
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/* The D3 GREEN LED is driven by an eZ80 GPI/O pin. However, it has some
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* additional properties:
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*
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* 1. On input, it will be '1' if the I/O expansion board is present.
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* 2. Setting it to an output of '0' will generate a system reset.
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* 3. Setting it to an output of '1' will not only illuminate the LED
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* take the card out of reset and enable power to the SD card slot.
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*
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* As a consequence, the GREEN LED will not be illuminated if SD card
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* support or SPI is disabled. The only effect of CONFIG_ARCH_LEDS is that
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* the GREEN LED will turned off in the event of a crash.
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*/
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#define LED_STARTED 0
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#define LED_HEAPALLOCATE 0
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#define LED_IRQSENABLED 0
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#define LED_STACKCREATED 0
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#define LED_IDLE 0
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#define LED_INIRQ 0
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#define LED_ASSERTION 1
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#define LED_SIGNAL 0
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#define LED_PANIC 1
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/* Button definitions
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* The MakerLisp CPU board has no on-board buttons that can be sensed by the
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* eZ80.
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*/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __CONFIGS_MAKERLISP_INCLUDE_BOARD_H */
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