222 lines
8.2 KiB
C
222 lines
8.2 KiB
C
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/****************************************************************************
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* configs/pic32mx7mmb/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_MIKROELEKTRONIKA_PIC32MX7MMB_INCLUDE_BOARD_H
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#define __CONFIGS_MIKROELEKTRONIKA_PIC32MX7MMB_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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/* Crystal frequencies */
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#define BOARD_POSC_FREQ 8000000 /* Primary OSC XTAL frequency (8MHz) */
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#define BOARD_SOSC_FREQ 32768 /* Secondary OSC XTAL frequency (32.768KHz) */
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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_IDIV 2 /* PLL input divider */
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#define BOARD_PLL_MULT 20 /* PLL multiplier */
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#define BOARD_PLL_ODIV 1 /* PLL output divider */
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#define BOARD_CPU_CLOCK 80000000 /* CPU clock (80MHz = 8MHz * 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 2 /* Peripheral clock divisor (PBDIV) */
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#define BOARD_PBCLOCK 40000000 /* Peripheral clock (PBCLK = 80MHz/2) */
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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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/* Ethernet MII clocking.
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*
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* The clock divider used to create the MII Management Clock (MDC). The MIIM
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* module uses the SYSCLK as an input clock. According to the IEEE 802.3
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* Specification this should be no faster than 2.5 MHz. However, some PHYs
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* support clock rates up to 12.5 MHz.
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*/
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#define BOARD_EMAC_MIIM_DIV 32 /* Ideal: 80MHz/32 = 2.5MHz */
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/* LED definitions **********************************************************/
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/* LED Configuration ********************************************************/
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/* The Mikroelektronika PIC32MX7 MMB has 3 user LEDs labeled LED1-3 on the
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* board graphics (but referred to as LED4-6 in the schematic):
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*
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* PIN User's Guide Board Stencil Notes
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* --- ------------- -------------- -------------------------
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* RD0 "User LED D4" "LED1 (RD0") High illuminates (RED)
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* RD2 "User LED D5" "LED3 (RD2)" High illuminates (YELLOW)
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* RD1 "User LED D6" "LED2 (RD1)" High illuminates (GREEN)
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*
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* We will use the labels on the board to identify LEDs
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*
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* There are 5 additional LEDs available on the MEB (but not used by NuttX):
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*
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* RD1 LED1
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* RD2 LED2
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* RD3 LED3
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* RC1 LED4
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* RC2 LED5
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*/
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/* LED index values for use with pic32mx_setled() */
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#define PIC32MX_PIC32MX7MMB_LED1 0
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#define PIC32MX_PIC32MX7MMB_LED2 1
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#define PIC32MX_PIC32MX7MMB_LED3 2
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#define PIC32MX_PIC32MX7MMB_NLEDS 3
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/* LED bits for use with pic32mx_setleds() */
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#define PIC32MX_PIC32MX7MMB_LED1_BIT (1 << PIC32MX_PIC32MX7MMB_LED1)
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#define PIC32MX_PIC32MX7MMB_LED2_BIT (1 << PIC32MX_PIC32MX7MMB_LED2)
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#define PIC32MX_PIC32MX7MMB_LED3_BIT (1 << PIC32MX_PIC32MX7MMB_LED3)
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/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 3 LEDs
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* on board the Mikroelektronika PIC32MX7 MMB. The following definitions
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* describe how NuttX controls the LEDs:
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*
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* ON OFF
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* ------------------------- ---- ---- ---- ---- ---- ----
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* LED1 LED2 LED3 LED1 LED2 LED3
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* ------------------------- ---- ---- ---- ---- ---- ----
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* LED_STARTED 0 OFF OFF OFF --- --- ---
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* LED_HEAPALLOCATE 1 ON OFF N/C --- --- ---
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* LED_IRQSENABLED 2 OFF ON N/C --- --- ---
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* LED_STACKCREATED 3 ON ON N/C --- --- ---
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* LED_INIRQ 4 N/C N/C ON N/C N/C OFF
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* LED_SIGNAL 4 N/C N/C ON N/C N/C OFF
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* LED_ASSERTION 4 N/C N/C ON N/C N/C OFF
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* LED_PANIC 5 ON N/C N/C OFF N/C 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 5
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#define LED_NVALUES 6
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/* Switch definitions *******************************************************/
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/* The PIC32 start kit has 3 switches:
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*
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* RD7 Switch SW2 (low when closed)
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* RD6 Switch SW1 (low when closed)
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* RD13 Switch SW3 (low when closed)
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*/
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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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/****************************************************************************
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* Public Function Prototypes
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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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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Name: pic32mx_ledinit and pic32mx_setled
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*
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* Description:
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
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* LEDs. If CONFIG_ARCH_LEDS is not defined, then the following interfaces
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* are available to control the LEDs from user applicaitons.
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*
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****************************************************************************/
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#ifndef CONFIG_ARCH_LEDS
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EXTERN void pic32mx_ledinit(void);
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#endif
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#ifndef CONFIG_ARCH_LEDS
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EXTERN void pic32mx_setled(int led, bool ledon);
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#endif
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#ifndef CONFIG_ARCH_LEDS
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EXTERN void pic32mx_setleds(uint8_t ledset);
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#endif
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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_MIKROELEKTRONIKA_PIC32MX7MMB_INCLUDE_BOARD_H */
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