92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
|
/****************************************************************************
|
||
|
|
* boards/z80/ez80/z20x/include/board.h
|
||
|
|
*
|
||
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||
|
|
* contributor license agreements. See the NOTICE file distributed with
|
||
|
|
* this work for additional information regarding copyright ownership. The
|
||
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||
|
|
* "License"); you may not use this file except in compliance with the
|
||
|
|
* License. You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||
|
|
* License for the specific language governing permissions and limitations
|
||
|
|
* under the License.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#ifndef __BOARDS_Z80_EZ80_Z20X_INCLUDE_BOARD_H
|
||
|
|
#define __BOARDS_Z80_EZ80_Z20X_INCLUDE_BOARD_H
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Included Files
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Pre-processor Definitions
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/* Clocking
|
||
|
|
*
|
||
|
|
* The z20x CPU board has a 20Mhz crystal. The eZ80F92 has no PLL; the
|
||
|
|
* system clock frequency is equal to the crystal frequency of 20MHz, the
|
||
|
|
* maximum for the eZ80F92 part.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define EZ80_SYS_CLK_FREQ 20000000
|
||
|
|
|
||
|
|
/* 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 0
|
||
|
|
#define LED_SIGNAL 0
|
||
|
|
#define LED_PANIC 1
|
||
|
|
|
||
|
|
/* Button definitions
|
||
|
|
* The z20x 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 /* __BOARDS_Z80_EZ80_Z20X_INCLUDE_BOARD_H */
|