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/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file wirish/boards/maple/include/board/board.h
* @author Perry Huang <iperry@leaflabs.com>, Bryan Newbold <bnewbold@robocracy.org
* @brief STM32F401C Discovery board file.
*/
#ifndef _BOARD_STM32F401_DISCOVERY_H_
#define _BOARD_STM32F401_DISCOVERY_H_
/* 84 MHz -> 84 cycles per microsecond. */
#define CYCLES_PER_MICROSECOND 84
// PLL config for 8 MHz external crystal
// --> 84 MHz SYSCLK, with 48 MHz PLL48CK.
//
// Additional constraints:
// ASSERT_FAULT((data->pllq >= 4) && (data->pllq <= 15));
// ASSERT_FAULT((data->pllp >= 2) && (data->pllp <= 8));
// ASSERT_FAULT(!(data->pllp & 1));
// ASSERT_FAULT((data->plln >= 192) && (data->plln <= 432));
// ASSERT_FAULT((data->pllm >= 2) && (data->pllm <= 63));
//
// f_VCO = (INPUT) X (PLL_N / PLL_M)
#define BOARD_PLL_N 336
#define BOARD_PLL_M 8
// SYSCLK = f_PLL = f_VCO / PLL_P; PLL_P = {2, 4, 6, 8}
#define BOARD_PLL_P 4
// PLL48CK = f_USBETC = f_VCO / PLL_Q; 2 <= PLL_Q <= 15
#define BOARD_PLL_Q 7 // should be 2?
/* Pin number for the built-in button (USER button on STM32F401DISCOVERY) */
#define BOARD_BUTTON_PIN PA0
/* Pin number for the built-in LED (blue LED on STM32F401DISCOVERY) */
#define BOARD_LED_PIN PD15
/* Number of USARTs/UARTs whose pins are broken out to headers. */
#define BOARD_NR_USARTS 3
/* USART pin numbers. */
#define BOARD_USART1_TX_PIN PA9
#define BOARD_USART1_RX_PIN PA10
#define BOARD_USART2_TX_PIN PA2
#define BOARD_USART2_RX_PIN PA3
#define BOARD_USART3_TX_PIN PB10
#define BOARD_USART3_RX_PIN PB11
/* Number of SPI ports broken out to headers. */
#define BOARD_NR_SPI 2
/* SPI pin numbers. */
#define BOARD_SPI1_NSS_PIN PA4
#define BOARD_SPI1_MOSI_PIN PA7
#define BOARD_SPI1_MISO_PIN PA6
#define BOARD_SPI1_SCK_PIN PA5
#define BOARD_SPI2_NSS_PIN 28
#define BOARD_SPI2_MOSI_PIN 31
#define BOARD_SPI2_MISO_PIN 30
#define BOARD_SPI2_SCK_PIN 29
/* Total number of GPIO pins that are broken out to headers and
* intended for use. This includes pins like the LED, button, and
* debug port (JTAG/SWD) pins. */
#define BOARD_NR_GPIO_PINS 80
/* Number of pins capable of PWM output. */
#define BOARD_NR_PWM_PINS 5
/* Number of pins capable of ADC conversion. */
#define BOARD_NR_ADC_PINS 1
/* Number of pins already connected to external hardware. For Maple,
* these are just BOARD_LED_PIN, BOARD_BUTTON_PIN, and the debug port
* pins (see below). */
#define BOARD_NR_USED_PINS 7
/* Debug port pins. */
#define BOARD_JTMS_SWDIO_PIN 39
#define BOARD_JTCK_SWCLK_PIN 40
#define BOARD_JTDI_PIN 41
#define BOARD_JTDO_PIN 42
#define BOARD_NJTRST_PIN 43
/* USB configuration. BOARD_USB_DISC_DEV is the GPIO port containing
* the USB_DISC pin, and BOARD_USB_DISC_BIT is that pin's bit. */
#define BOARD_USB_DISC_DEV GPIOC
#define BOARD_USB_DISC_BIT 12
/* Pin aliases: these give the GPIO port/bit for each pin as an
* enum. These are optional, but recommended. They make it easier to
* write code using low-level GPIO functionality. */
enum {
PA0, PA1, PA2, PA3, PA4, PA5, PA6, PA7, PA8, PA9, PA10, PA11, PA12, PA13, PA14, PA15,
PB0, PB1, PB2, PB3, PB4, PB5, PB6, PB7, PB8, PB9, PB10, PB11, PB12, PB13, PB14, PB15,
PC0, PC1, PC2, PC3, PC4, PC5, PC6, PC7, PC8, PC9, PC10, PC11, PC12, PC13, PC14, PC15,
PD0, PD1, PD2, PD3, PD4, PD5, PD6, PD7, PD8, PD9, PD10, PD11, PD12, PD13, PD14, PD15,
PE0, PE1, PE2, PE3, PE4, PE5, PE6, PE7, PE8, PE9, PE10, PE11, PE12, PE13, PE14, PE15,
};
#endif
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