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/****************************************************************************
* board/board.h
*
* Copyright (C) 2014 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 __ARCH_BOARD_BOARD_H
#define __ARCH_BOARD_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Definitions
****************************************************************************/
/* The 16Z board has a 19.6608MHz crystal. The ZNEO clocking will be
* configured to use this crystal frequency directly as the clock source
*/
#define BOARD_XTAL_FREQUENCY 19660800 /* 19.6608MHz */
#define BOARD_CLKSRC 1 /* Clock source = external crystal */
#define BOARD_SYSTEM_FREQUENCY BOARD_XTAL_FREQUENCY
/* LEDs
*
* The 16z board has 7 LEDs, five of which are controllable via software:
*
* ----- ------ ------ ------------------------------------
* LED Color Signal Description
* ----- ------ ------ ------------------------------------
* LED1 Red 3V3 Indicates the presence of +3.3V
* LED2 Red 5V Indicates the presence of +5V
* LED3 Blue ~RF Controlled via PH2. Notes: 1, 2
* LED4 Green ~SXM Controlled via PH3. Notes: 1, 3
* LED5 Green ~SD1 Controlled via PJ0. Notes: 1, 4
* LED6 Yellow ~SD2 Controlled via PJ4. Notes: 1, 5
* LED7 Yellow ~SD0 Controlled via PJ7. Notes: 1, 6
* ----- ------ ------ ------------------------------------
*
* Note 1: Pulled high so a low output illuminates the LED.
* Note 2: PH2/~RF is also used by the RF transceiver, X2. That part is not
* populated on my board.
* Note 3: ~SXM is the chip select for the serial memory, U4. That part is
* not populated on my board.
* Note 4: ~SD1 is the chip select for the SD card 1, X11.
* Note 5: ~SD2 is the chip select for the SD card 2, X10.
* Note 6: ~SD0 is the chip select for the microSD 0, X12.
*
* In conclusion: None of the LEDs are available to indicate software status
* without potentially sacrificing board functionality. If the RF transceiver
* is not installed (CONFIG_16Z_RFTRANSCEIVER=n) and if LED support is
* requested (CONFIG_ARCH_LEDS), then LED3 will be used to indicate status: A
* solid color means that the board has boot successfully; flashing at a rate
* of approximately 2Hz indicates a software failure.
*/
#define __LED3_BIT (1 << 0)
#define __LED4_BIT (1 << 1)
#undef HAVE_16Z_LED3
#undef HAVE_16Z_LED4
#if !defined(CONFIG_16Z_RFTRANSCEIVER)
# define __LEDPANIC __LED3_BIT
# define HAVE_16Z_LED3
#elif !defined(CONFIG_16Z_SERIAL_MEMORY)
# define __LEDPANIC __LED4_BIT
# define HAVE_16Z_LED4
#else
# define __LEDPANIC (0)
#endif
#if !defined(CONFIG_16Z_SERIAL_MEMORY) && !defined(HAVE_16Z_LED4)
# define __LEDSTARTED __LED4_BIT
# define HAVE_16Z_LED4
#else
# define __LEDSTARTED __LEDPANIC
#endif
/* LED3 LED4 */
#define LED_STARTED 0 /* OFF OFF */
#define LED_HEAPALLOCATE 0 /* N/C N/C */
#define LED_IRQSENABLED 0 /* N/C N/C */
#define LED_STACKCREATED __LEDSTARTED /* N/C ON */
#define LED_INIRQ 0 /* N/C N/C */
#define LED_SIGNAL 0 /* N/C N/C */
#define LED_ASSERTION 0 /* N/C N/C */
#define LED_PANIC __LEDPANIC /* ON N/C */
/****************************************************************************
* 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 /* __ARCH_BOARD_BOARD_H */
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