diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-01-11 13:01:26 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-01-11 13:01:26 +0000 |
commit | 1c871cf28a9f18a9488513cf38c56abe3adad7b8 (patch) | |
tree | 37a8bb2d6f5306510b186e193ba3cf1f516d9067 /nuttx/configs/stm32f4discovery/include | |
parent | 297039ce52f88f041ad2111bc04ec5559ac185af (diff) | |
download | px4-nuttx-1c871cf28a9f18a9488513cf38c56abe3adad7b8.tar.gz px4-nuttx-1c871cf28a9f18a9488513cf38c56abe3adad7b8.tar.bz2 px4-nuttx-1c871cf28a9f18a9488513cf38c56abe3adad7b8.zip |
Add support for the STM32F4-Discovery (from Mike Smith)
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4294 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/stm32f4discovery/include')
-rwxr-xr-x | nuttx/configs/stm32f4discovery/include/board.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/nuttx/configs/stm32f4discovery/include/board.h b/nuttx/configs/stm32f4discovery/include/board.h new file mode 100755 index 000000000..8a9ce5e67 --- /dev/null +++ b/nuttx/configs/stm32f4discovery/include/board.h @@ -0,0 +1,312 @@ +/************************************************************************************ + * configs/stm32f4discovery/include/board.h + * include/arch/board/board.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 <nuttx/config.h> +#ifndef __ASSEMBLY__ +# include <stdint.h> +#endif +#include "stm32_rcc.h" +#include "stm32_sdio.h" +#include "stm32_internal.h" + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* Clocking *************************************************************************/ +/* The STM32F4 Discovery board features a single 8MHz crystal. Space is provided + * for a 32kHz RTC backup crystal, but it is not stuffed. + * + * This is the canonical configuration: + * System Clock source : PLL (HSE) + * SYSCLK(Hz) : 168000000 Determined by PLL configuration + * HCLK(Hz) : 168000000 (STM32_RCC_CFGR_HPRE) + * AHB Prescaler : 1 (STM32_RCC_CFGR_HPRE) + * APB1 Prescaler : 4 (STM32_RCC_CFGR_PPRE1) + * APB2 Prescaler : 2 (STM32_RCC_CFGR_PPRE2) + * HSE Frequency(Hz) : 25000000 (STM32_BOARD_XTAL) + * PLLM : 8 (STM32_PLLCFG_PLLM) + * PLLN : 336 (STM32_PLLCFG_PLLN) + * PLLP : 2 (STM32_PLLCFG_PLLP) + * PLLQ : 7 (STM32_PLLCFG_PPQ) + * Main regulator output voltage : Scale1 mode Needed for high speed SYSCLK + * Flash Latency(WS) : 5 + * Prefetch Buffer : OFF + * Instruction cache : ON + * Data cache : ON + * Require 48MHz for USB OTG FS, : Enabled + * SDIO and RNG clock + */ + +/* HSI - 16 MHz RC factory-trimmed + * LSI - 32 KHz RC + * HSE - On-board crystal frequency is 25MHz + * LSE - 32.768 kHz + */ + +#define STM32_BOARD_XTAL 8000000ul + +#define STM32_HSI_FREQUENCY 16000000ul +#define STM32_LSI_FREQUENCY 32000 +#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL +#define STM32_LSE_FREQUENCY 32768 + +/* Main PLL Configuration. + * + * PLL source is HSE + * PLL_VCO = (STM32_HSE_FREQUENCY / PLLM) * PLLN + * = (25,000,000 / 25) * 336 + * = 336,000,000 + * SYSCLK = PLL_VCO / PLLP + * = 336,000,000 / 2 = 168,000,000 + * USB OTG FS, SDIO and RNG Clock + * = PLL_VCO / PLLQ + * = 48,000,000 + */ + +#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(8) +#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(336) +#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP_2 +#define STM32_PLLCFG_PPQ RCC_PLLCFG_PLLQ(7) + +#define STM32_SYSCLK_FREQUENCY 168000000ul + +/* AHB clock (HCLK) is SYSCLK (168MHz) */ + +#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK /* HCLK = SYSCLK / 1 */ +#define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY +#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* same as above, to satisfy compiler */ + +/* APB1 clock (PCLK1) is HCLK/4 (42MHz) */ + +#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd4 /* PCLK1 = HCLK / 4 */ +#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/4) + +/* Timers driven from APB1 will be twice PCLK1 */ + +#define STM32_APB1_TIM2_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM3_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM4_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM5_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM6_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM7_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM12_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM13_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB1_TIM14_CLKIN (2*STM32_PCLK1_FREQUENCY) + +/* APB2 clock (PCLK2) is HCLK/2 (84MHz) */ + +#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLKd2 /* PCLK2 = HCLK / 2 */ +#define STM32_PCLK2_FREQUENCY (STM32_HCLK_FREQUENCY/2) + +/* Timers driven from APB2 will be twice PCLK2 */ + +#define STM32_APB2_TIM1_CLKIN (2*STM32_PCLK2_FREQUENCY) +#define STM32_APB2_TIM8_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB2_TIM9_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB2_TIM10_CLKIN (2*STM32_PCLK1_FREQUENCY) +#define STM32_APB2_TIM11_CLKIN (2*STM32_PCLK1_FREQUENCY) + +/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx + * otherwise frequency is 2xAPBx. + * Note: TIM1,8 are on APB2, others on APB1 + */ + +#define STM32_TIM18_FREQUENCY STM32_HCLK_FREQUENCY +#define STM32_TIM27_FREQUENCY STM32_HCLK_FREQUENCY + +/* LED definitions ******************************************************************/ +/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any + * way. The following definitions are used to access individual LEDs. + */ + +/* LED index values for use with stm32_setled() */ + +#define BOARD_LED1 0 +#define BOARD_LED2 1 +#define BOARD_LED3 2 +#define BOARD_LED4 3 +#define BOARD_NLEDS 4 + +#define BOARD_LED_GREEN BOARD_LED1 +#define BOARD_LED_ORANGE BOARD_LED2 +#define BOARD_LED_RED BOARD_LED3 +#define BOARD_LED_BLUE BOARD_LED4 + +/* LED bits for use with stm32_setleds() */ + +#define BOARD_LED1_BIT (1 << BOARD_LED1) +#define BOARD_LED2_BIT (1 << BOARD_LED2) +#define BOARD_LED3_BIT (1 << BOARD_LED3) +#define BOARD_LED4_BIT (1 << BOARD_LED4) + +/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 4 LEDs on board the + * stm32f4discovery. The following definitions describe how NuttX controls the LEDs: + */ + +#define LED_STARTED 0 /* LED1 */ +#define LED_HEAPALLOCATE 1 /* LED2 */ +#define LED_IRQSENABLED 2 /* LED1 + LED2 */ +#define LED_STACKCREATED 3 /* LED3 */ +#define LED_INIRQ 4 /* LED1 + LED3 */ +#define LED_SIGNAL 5 /* LED2 + LED3 */ +#define LED_ASSERTION 6 /* LED1 + LED2 + LED3 */ +#define LED_PANIC 7 /* N/C + N/C + N/C + LED4 */ + +/* Button definitions ***************************************************************/ +/* The STM32F4 Discovery supports one button: */ + +#define BUTTON_USER 0 + +#define NUM_BUTTONS 1 + +#define BUTTON_USER_BIT (1 << BUTTON_USER) + +/* Alternate function pin selections ************************************************/ + +/* UART2: + * + * The STM32F4 Discovery has no on-board serial devices, but the console is + * brought out to PA2 (TX) and PA3 (RX) for connection to an external serial device. + */ + +#define GPIO_USART2_RX GPIO_USART2_RX_1 +#define GPIO_USART2_TX GPIO_USART2_TX_1 + +/* PWM + * + * The STM32F4 Discovery has no real on-board PWM devices, but the board can be + * configured to output a pulse train using TIM4 CH2 on PD13. + */ + +#define GPIO_TIM4_CH2OUT GPIO_TIM4_CH2OUT_2 + +/* SPI */ + +#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1 +#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1 +#define GPIO_SPI1_SCK GPIO_SPI1_SCK_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: stm32_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 stm32_boardinitialize(void); + +/************************************************************************************ + * Name: stm32_ledinit, stm32_setled, and stm32_setleds + * + * Description: + * If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs. If + * CONFIG_ARCH_LEDS is not defined, then the following interfacesare available to + * control the LEDs from user applications. + * + ************************************************************************************/ + +#ifndef CONFIG_ARCH_LEDS +EXTERN void stm32_ledinit(void); +EXTERN void stm32_setled(int led, bool ledon); +EXTERN void stm32_setleds(uint8_t ledset); +#endif + +/************************************************************************************ + * 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 + * 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_* 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 */ |