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151 lines
6.0 KiB
151 lines
6.0 KiB
/************************************************************************************ |
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* configs/ne64badge/include/board.h |
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* include/arch/board/board.h |
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* |
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* Copyright (C) 2011 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr> |
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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 __ARCH_BOARD_BOARD_H |
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#define __ARCH_BOARD_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 <stdint.h> |
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#endif |
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/************************************************************************************ |
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* Definitions |
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************************************************************************************/ |
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/* Clocking *************************************************************************/ |
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/* Frequency of the crystal oscillator */ |
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#define HCS12_OSCCLK 16000000 /* 16MHz */ |
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/* PLL Settings |
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* |
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* SYNR register controls the multiplication factor of the PLL. If the PLL is on, the |
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* count in the loop divider (SYNR) register effectively multiplies up the PLL clock |
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* (PLLCLK) from the reference frequency by 2 x (SYNR+1). PLLCLK will not be below |
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* the minimum VCO frequency (fSCM). |
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* |
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* The REFDV register provides a finer granularity for the PLL multiplier steps. The |
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* count in the reference divider divides OSCCLK frequency by REFDV + 1. |
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* |
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* PLLCLK = 2 * OSCCLK * (SYNR + 1) / (REFDV + 1) |
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* |
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* If (PLLSEL = 1), Bus Clock = PLLCLK / 2 |
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*/ |
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#define HCS12_SYNR_VALUE 0x15 |
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#define HCS12_REFDV_VALUE 0x15 |
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#define HCS12_PLLCLK (2*HCS12_OSCCLK*(HCS12_SYNR+1)/(HCS12_REFDV+1)) |
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#define HCS12_BUSCLK (HSC12_PLLCLK/2) |
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/* LED definitions ******************************************************************/ |
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/* The NE64 Badge board has 2 red LEDs that we will encode as: */ |
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/* LED1 LED2 */ |
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#define LED_STARTED 0 /* OFF OFF = Still initializing */ |
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#define LED_HEAPALLOCATE 0 /* OFF OFF = Still initializing */ |
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#define LED_IRQSENABLED 0 /* OFF OFF = Still initializing */ |
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#define LED_STACKCREATED 1 /* ON OFF = Initialization complete */ |
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#define LED_INIRQ 2 /* NC ON = In an interrupt handler */ |
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#define LED_SIGNAL 2 /* NC ON = In a signal handler */ |
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#define LED_ASSERTION 2 /* NC ON = In an assertion */ |
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#define LED_PANIC 2 /* NC ON = Oops! We crashed. (flashing) */ |
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/* Button definitions ***************************************************************/ |
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/* The NE64 badge has 2 switches, one labed SW1 and the other SW2 on the board (but |
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* referred to as button1 and button2 in some documentation) |
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*/ |
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#define BUTTON1 1 /* Bit 0: SW1 button is depressed */ |
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#define BUTTON2 2 /* Bit 1: SW2 button is depressed */ |
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/************************************************************************************ |
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* Public Data |
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************************************************************************************/ |
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#ifndef __ASSEMBLY__ |
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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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/************************************************************************************ |
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* Public Function Prototypes |
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************************************************************************************/ |
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/************************************************************************************ |
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* Name: hcs12_boardinitialize |
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* |
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* Description: |
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* All HCS12 architectures must provide the following entry point. This entry point |
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* is called early in the intitialization -- after all memory has been configured |
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* and mapped but before any devices have been initialized. |
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* |
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************************************************************************************/ |
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EXTERN void hcs12_boardinitialize(void); |
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/************************************************************************************ |
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* Button support. |
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* |
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* Description: |
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* up_buttoninit() must be called to initialize button resources. After that, |
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* up_buttons() may be called to collect the state of all buttons. up_buttons() |
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* returns an bit set with bits corresponding to the state of each button. |
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* |
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************************************************************************************/ |
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#ifdef CONFIG_ARCH_BUTTONS |
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EXTERN void up_buttoninit(void); |
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EXTERN uint8_t up_buttons(void); |
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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 /* __ASSEMBLY__ */ |
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#endif /* __ARCH_BOARD_BOARD_H */
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