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- /****************************************************************************
- * 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 */
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