/************************************************************************************ * configs/nutiny-nuc120/include/board.h * include/arch/board/board.h * * Copyright (C) 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 __CONFIGS_NUTINY_NUC12_INCLUDE_BOARD_H #define __CONFIGS_NUTINY_NUC12_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include #endif /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* Crystal frequencies */ #define BOARD_XTALHI_FREQUENCY 12000000 #define BOARD_XTALLO_FREQUENCY 32768 /* PLL: The PLL must be 48MHz x N times when using USB * * FOUT = FIN x (NF/NR) x (1 / NO) * FIN = Input reference clock frequency * NF = Feedback divider * = (FB_DV + 2) * NR = Input divider * = (IN_DV + 2) * NO = 1 if OUT_DV == 0 * 2 if OUT_DV == 1 or 2 * 4 if OUT_DV == 3 * * FOUT = 12000000 x 48 / 3 / 4 * = 48MHz */ #define BOARD_PLL_FIN BOARD_XTALHI_FREQUENCY #define BOARD_PLL_FB_DV 46 #define BOARD_PLL_NF (BOARD_PLL_FB_DV+2) #define BOARD_PLL_IN_DV 1 #define BOARD_PLL_NR (BOARD_PLL_IN_DV+2) #define BOARD_PLL_OUT_DV 3 #define BOARD_PLL_NO 4 #define BOARD_PLL_FOUT \ (BOARD_PLL_FIN * BOARD_PLL_NF / BOARD_PLL_NR / BOARD_PLL_NO) /* HCLK. FOUT is the HCLK source clock. */ #define BOARD_HCLK_N 1 #define BOARD_HCLK_FREQUENCY (BOARD_PLL_FOUT / BOARD_HCLK_N) /* USB. FOUT is the source. The USB CLK must be 48MHz */ #define BOARD_USB_N 1 #define BOARD_USB_FREQUENCY (BOARD_PLL_FOUT / BOARD_USB_N) /* LED definitions ******************************************************************/ /* The NuTiny has a single green LED that can be controlled from sofware. This LED * is connected to PIN17. It is pulled high so a low value will illuminate the LED. */ #define BOARD_NLEDS 1 /* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the * NuTiny. The following definitions describe how NuttX controls the LEDs: * * SYMBOL Meaning LED state * Initially all LED is OFF * ------------------- ----------------------- ------------- ------------ * LED_STARTED NuttX has been started LED ON * LED_HEAPALLOCATE Heap has been allocated LED ON * LED_IRQSENABLED Interrupts enabled LED ON * LED_STACKCREATED Idle stack created LED ON * LED_INIRQ In an interrupt LED should glow * LED_SIGNAL In a signal handler LED might glow * LED_ASSERTION An assertion failed LED ON while handling the assertion * LED_PANIC The system has crashed LED Blinking at 2Hz * LED_IDLE NUC1XX is is sleep mode (Optional, not used) */ #define LED_STARTED 0 #define LED_HEAPALLOCATE 0 #define LED_IRQSENABLED 0 #define LED_STACKCREATED 0 #define LED_INIRQ 0 #define LED_SIGNAL 0 #define LED_ASSERTION 0 #define LED_PANIC 0 /* Button definitions ***************************************************************/ /* The NuTiny has no buttons */ #define NUM_BUTTONS 0 /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Function Prototypes ************************************************************************************/ /************************************************************************************ * Name: nuc_boardinitialize * * Description: * All NUC1XX architectures must provide the following entry point. This entry point * is called early in the intitialization -- after all memory has been configured * and mapped but before any devices have been initialized. * ************************************************************************************/ void nuc_boardinitialize(void); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_NUTINY_NUC12_INCLUDE_BOARD_H */