176 lines
6.5 KiB
C
176 lines
6.5 KiB
C
/****************************************************************************
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* configs/mirtoo/include/board.h
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* include/arch/board/board.h
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*
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* Copyright (C) 2012 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_MIRTOO_INCLUDE_BOARD_H
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#define __CONFIGS_MIRTOO_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdbool.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Clocking *****************************************************************/
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/* The Mirtoo does not use an external crystal but relies instead on the
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* internal +/- 0.9% FRC clock. That clock has a nomninal frequency of 8MHz.
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*/
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#define BOARD_FRC_FREQ 8000000 /* FRC nomimal frequency(8MHz) */
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/* Oscillator modes */
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#define BOARD_FNOSC_FRCPLL 1 /* Use FRC w/PLL module */
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#define BOARD_POSC_DISABLED 1 /* Disable primary oscillator */
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/* PLL configuration and resulting CPU clock.
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* CPU_CLOCK = ((POSC_FREQ / IDIV) * MULT) / ODIV
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*/
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#define BOARD_PLL_INPUT BOARD_FRC_FREQ
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#define BOARD_PLL_IDIV 2 /* PLL input divider: Input = 4MHz */
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#define BOARD_PLL_MULT 20 /* PLL multiplier: PLL = 80MHz */
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#define BOARD_PLL_ODIV 2 /* PLL output divider: Output = 40MHz */
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#define BOARD_CPU_CLOCK 40000000 /* CPU clock 40MHz = (((8MHz / 2) * 20) / 2) */
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/* USB PLL configuration.
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* USB_CLOCK = ((POSC_XTAL / IDIV) * 24) / 2
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*/
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#define BOARD_UPLL_IDIV 2 /* USB PLL divider (revisit) */
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#define BOARD_USB_CLOCK 48000000 /* USB clock (8MHz / 2) * 24 / 2) */
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/* Peripheral clock is divided down from CPU clock.
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* PBCLOCK = CPU_CLOCK / PBDIV
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*/
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#define BOARD_PBDIV 1 /* Peripheral clock divisor (PBDIV) */
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#define BOARD_PBCLOCK 40000000 /* Peripheral clock (PBCLK = 40MHz/1) */
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/* Watchdog pre-scaler (re-visit) */
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#define BOARD_WD_ENABLE 0 /* Watchdog is disabled */
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#define BOARD_WD_PRESCALER 8 /* Watchdog pre-scaler */
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/* LED definitions **********************************************************/
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/* The Mirtoo module has 2 user LEDs labeled LED0 and LED1 in the schematics:
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*
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* --- ----- --------------------------------------------------------------
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* PIN Board Notes
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* --- ----- --------------------------------------------------------------
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* RC8 LED0 Grounded, high value illuminates
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* RC9 LED1 Grounded, high value illuminates
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*
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* The Dimitech DTX1-4000L EV-kit1 supports 3 more LEDs, but there are not
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* controllable from software.
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*/
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/* LED index values for use with board_userled() */
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#define PIC32MX_MIRTOO_LED0 0
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#define PIC32MX_MIRTOO_LED1 1
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#define PIC32MX_MIRTOO_NLEDS 2
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/* LED bits for use with board_userled_all() */
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#define PIC32MX_MIRTOO_LED0_BIT (1 << PIC32MX_MIRTOO_LED0)
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#define PIC32MX_MIRTOO_LED1_BIT (1 << PIC32MX_MIRTOO_LED1)
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/* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
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* follows:
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* ON OFF
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* ------------------------- ---- ---- ---- ----
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* LED0 LED1 LED0 LED1
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* ------------------------- ---- ---- ---- ----
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* LED_STARTED 0 OFF OFF --- ---
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* LED_HEAPALLOCATE 1 ON OFF --- ---
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* LED_IRQSENABLED 2 OFF ON --- ---
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* LED_STACKCREATED 3 ON ON --- ---
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* LED_INIRQ 4 ON N/C OFF N/C
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* LED_SIGNAL 4 ON N/C OFF N/C
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* LED_ASSERTION 4 ON N/C OFF N/C
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* LED_PANIC 4 ON N/C OFF N/C
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*/
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#define LED_STARTED 0
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#define LED_HEAPALLOCATE 1
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#define LED_IRQSENABLED 2
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#define LED_STACKCREATED 3
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#define LED_INIRQ 4
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#define LED_SIGNAL 4
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#define LED_ASSERTION 4
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#define LED_PANIC 4
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#define LED_NVALUES 5
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_MIRTOO_INCLUDE_BOARD_H */
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