/************************************************************************************ * configs/kwikstik-k40/include/board.h * include/arch/board/board.h * * Copyright (C) 2011 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 __ARCH_BOARD_BOARD_H #define __ARCH_BOARD_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include #endif /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* The Kwikstik-K40 has a 4MHz crystal on board */ #undef BOARD_EXTCLOCK /* Crystal */ #define BOARD_EXTAL_FREQ 4000000 /* 4MHz crystal frequency (REFCLK) */ #define BOARD_XTAL32_FREQ 32768 /* 32KHz RTC Oscillator */ /* PLL Configuration. NOTE: Only even frequency crystals are supported that will * produce a 2MHz reference clock to the PLL. * * PLL Input frequency: PLLIN = REFCLK/PRDIV = 4MHz/2 = 2MHz * PLL Output frequency: PLLOUT = PLLIN*VDIV = 2Mhz*48 = 96MHz * MCG Frequency: PLLOUT = 96MHz */ #define BOARD_PRDIV 2 /* PLL External Reference Divider */ #define BOARD_VDIV 48 /* PLL VCO Divider (frequency multiplier) */ #define BOARD_PLLIN_FREQ (BOARD_EXTAL_FREQ / BOARD_PRDIV) #define BOARD_PLLOUT_FREQ (BOARD_EXTAL_FREQ * BOARD_VDIV) #define BOARD_MCG_FREQ BOARD_PLLOUT_FREQ /* SIM CLKDIV1 dividers */ #define BOARD_OUTDIV1 1 /* Core = MCG, 96MHz */ #define BOARD_OUTDIV2 2 /* Bus = MCG/2, 48MHz */ #define BOARD_OUTDIV3 2 /* FlexBus = MCG/2, 48MHz */ #define BOARD_OUTDIV4 4 /* Flash clock = MCG/4, 24MHz */ #define BOARD_CORECLK_FREQ (BOARD_MCG_FREQ / BOARD_OUTDIV1) #define BOARD_BUS_FREQ (BOARD_MCG_FREQ / BOARD_OUTDIV2) #define BOARD_FLEXBUS_FREQ (BOARD_MCG_FREQ / BOARD_OUTDIV3) #define BOARD_FLASHCLK_FREQ (BOARD_MCG_FREQ / BOARD_OUTDIV4) /* LED definitions ******************************************************************/ #define LED_STARTED 0 #define LED_HEAPALLOCATE 1 #define LED_IRQSENABLED 2 #define LED_STACKCREATED 3 #define LED_INIRQ 4 #define LED_SIGNAL 5 #define LED_ASSERTION 6 #define LED_PANIC 7 /* Button definitions ***************************************************************/ /* Alternative pin resolution *******************************************************/ /* If there are alternative configurations for various pins in the * kinetis_k40pinmux.h header file, those alternative pins will be labeled with a * suffix like _1, _2, etc. The logic in this file must select the correct pin * configuration for the board by defining a pin configuration (with no suffix) that * maps to the correct alternative. */ #warning "Revisit: This only only here to get a clean compiliation" #define GPIO_UART0_RX GPIO_UART0_RX_1 #define GPIO_UART0_TX GPIO_UART0_TX_1 #define GPIO_UART1_RX GPIO_UART1_RX_1 #define GPIO_UART1_TX GPIO_UART1_TX_1 #define GPIO_UART3_RX GPIO_UART3_RX_1 #define GPIO_UART3_TX GPIO_UART3_TX_1 #define GPIO_UART4_RX GPIO_UART4_RX_1 #define GPIO_UART4_TX GPIO_UART4_TX_1 /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Function Prototypes ************************************************************************************/ /************************************************************************************ * Name: kinetis_boardinitialize * * Description: * All STM32 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. * ************************************************************************************/ EXTERN void kinetis_boardinitialize(void); /************************************************************************************ * Button support. * * Description: * up_buttoninit() must be called to initialize button resources. After * that, up_buttons() may be called to collect the current state of all * buttons or up_irqbutton() may be called to register button interrupt * handlers. * * After up_buttoninit() has been called, up_buttons() may be called to * collect the state of all buttons. up_buttons() returns an 8-bit bit set * with each bit associated with a button. See the BUTTON_*_BIT and JOYSTICK_*_BIT * definitions in board.h for the meaning of each bit. * * up_irqbutton() may be called to register an interrupt handler that will * be called when a button is depressed or released. The ID value is a * button enumeration value that uniquely identifies a button resource. See the * BUTTON_* and JOYSTICK_* definitions in board.h for the meaning of enumeration * value. The previous interrupt handler address is returned (so that it may * restored, if so desired). * ************************************************************************************/ #ifdef CONFIG_ARCH_BUTTONS EXTERN void up_buttoninit(void); EXTERN uint8_t up_buttons(void); #ifdef CONFIG_ARCH_IRQBUTTONS EXTERN xcpt_t up_irqbutton(int id, xcpt_t irqhandler); #endif #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_BOARD_BOARD_H */