178 lines
7.0 KiB
C
178 lines
7.0 KiB
C
/****************************************************************************
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* configs/16z/include/board.h
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*
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* Copyright (C) 2014 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_16Z_INCLUDE_BOARD_H
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#define __CONFIGS_16Z_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* The 16Z board has a 18.432MHz crystal. The ZNEO clocking will be
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* configured to use this crystal frequency directly as the clock source
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*/
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#define BOARD_XTAL_FREQUENCY 18432000 /* 18.432MHz */
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#define BOARD_CLKSRC 1 /* Clock source = external crystal */
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#define BOARD_SYSTEM_FREQUENCY BOARD_XTAL_FREQUENCY
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/* Flash option bits
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*
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* "Each time the option bits are programmed or erased, the device must be
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* Reset for the change to take place. During any reset operation .., the
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* option bits are automatically read from the Program memory and written
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* to Option Configuration registers. ... Option Bit Control Register are
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* loaded before the device exits Reset and the ZNEO CPU begins code
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* execution. The Option Configuration registers are not part of the
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* Register file and are not accessible for read or write access."
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*
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* "The FLASH3 value of 0x7f is very important because it enables the
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* J-port, otherwise used for 16-bit data.
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*
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* "... in 16z there are some unusual hardware connections. ZNEO
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* communicates with 16-bit memory via 8-bit bus and using the 16-bit
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* control signals BHE and BLE."
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*/
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#ifndef __ASSEMBLY__
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# define BOARD_FLOPTION0 (Z16F_FLOPTION0_MAXPWR | Z16F_FLOPTION0_WDTRES | \
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Z16F_FLOPTION0_WDTA0 | Z16F_FLOPTION0_VBOA0 | \
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Z16F_FLOPTION0_DBGUART | Z16F_FLOPTION0_FWP | \
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Z16F_FLOPTION0_RP)
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# define BOARD_FLOPTION1 (Z16F_FLOPTION1_RESVD | Z16F_FLOPTION1_MCEN | \
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Z16F_FLOPTION1_OFFH | Z16F_FLOPTION1_OFFL)
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# define BOARD_FLOPTION2 Z16F_FLOPTION2_RESVD
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# define BOARD_FLOPTION3 (Z16F_FLOPTION3_RESVD | Z16F_FLOPTION3_NORMAL)
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/* The same settings, pre-digested for assembly language */
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#else
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# define BOARD_FLOPTION0 %ff
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# define BOARD_FLOPTION1 %ff
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# define BOARD_FLOPTION2 %ff
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# define BOARD_FLOPTION3 %7f
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#endif
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/* LEDs
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*
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* The 16z board has 7 LEDs, five of which are controllable via software:
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*
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* ----- ------ ------ ------------------------------------
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* LED Color Signal Description
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* ----- ------ ------ ------------------------------------
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* LED1 Red 3V3 Indicates the presence of +3.3V
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* LED2 Red 5V Indicates the presence of +5V
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* LED3 Blue ~RF Controlled via PH2. Notes: 1, 2
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* LED4 Green ~SXM Controlled via PH3. Notes: 1, 3
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* LED5 Green ~SD1 Controlled via PJ0. Notes: 1, 4
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* LED6 Yellow ~SD2 Controlled via PJ4. Notes: 1, 5
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* LED7 Yellow ~SD0 Controlled via PJ7. Notes: 1, 6
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* ----- ------ ------ ------------------------------------
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*
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* Note 1: Pulled high so a low output illuminates the LED.
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* Note 2: PH2/~RF is also used by the RF transceiver, X2. That part is not
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* populated on my board.
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* Note 3: ~SXM is the chip select for the serial memory, U4. That part is
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* not populated on my board.
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* Note 4: ~SD1 is the chip select for the SD card 1, X11.
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* Note 5: ~SD2 is the chip select for the SD card 2, X10.
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* Note 6: ~SD0 is the chip select for the microSD 0, X12.
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*
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* In conclusion: None of the LEDs are available to indicate software status
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* without potentially sacrificing board functionality. If the RF transceiver
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* is not installed (CONFIG_16Z_RFTRANSCEIVER=n) and if LED support is
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* requested (CONFIG_ARCH_LEDS), then LED3 will be used to indicate status: A
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* solid color means that the board has boot successfully; flashing at a rate
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* of approximately 2Hz indicates a software failure.
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*/
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#define __LED3_BIT (1 << 0)
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#define __LED4_BIT (1 << 1)
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#undef HAVE_16Z_LED3
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#undef HAVE_16Z_LED4
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#if !defined(CONFIG_16Z_RFTRANSCEIVER)
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# define __LEDPANIC __LED3_BIT
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# define HAVE_16Z_LED3
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#elif !defined(CONFIG_16Z_SERIAL_MEMORY)
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# define __LEDPANIC __LED4_BIT
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# define HAVE_16Z_LED4
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#else
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# define __LEDPANIC (0)
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#endif
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#if !defined(CONFIG_16Z_SERIAL_MEMORY) && !defined(HAVE_16Z_LED4)
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# define __LEDSTARTED __LED4_BIT
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# define HAVE_16Z_LED4
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#else
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# define __LEDSTARTED __LEDPANIC
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#endif
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/* LED3 LED4 */
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#define LED_STARTED 0 /* OFF OFF */
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#define LED_HEAPALLOCATE 0 /* N/C N/C */
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#define LED_IRQSENABLED 0 /* N/C N/C */
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#define LED_STACKCREATED __LEDSTARTED /* N/C ON */
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#define LED_INIRQ 0 /* N/C N/C */
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#define LED_SIGNAL 0 /* N/C N/C */
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#define LED_ASSERTION 0 /* N/C N/C */
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#define LED_PANIC __LEDPANIC /* ON N/C */
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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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#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_16Z_INCLUDE_BOARD_H */
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