nuttx/configs/makerlisp/include/board.h

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