/************************************************************************************ * configs/samd20-xplained/include/board.h * * Copyright (C) 2014 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_SAMD20_XPLAINED_INCLUDE_BOARD_H #define __CONFIGS_SAMD20_XPLAINED_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include # ifdef CONFIG_GPIO_IRQ # include # endif #endif /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* Overview * * OSC8M Output = 8MHz * `- GCLK1 Input = 8MHz Prescaler = 1 output = 8MHz * `- DFLL Input = 8MHz Multiplier = 6 output = 48MHz * `- GCLK0 Input = 48MHz Prescaler = 1 output = 48MHz * `- PM Input = 48Mhz CPU divider = 1 CPU frequency = 48MHz * APBA divider = 1 APBA frequency = 48MHz * APBB divider = 1 APBB frequency = 48MHz * APBC divider = 1 APBC frequency = 48MHz * * The SAMD20 Xplained Pro has one on-board crystal: * * XC101 32.768KHz XOSC32 * * REVISIT: Not currently used, may want to use as GCLK1 source with * DFLL multiplier of ((48000000+16384)/32768) = 1465 which would yield * a clock of 48,005,120 MHz. */ /* XOSC Configuration -- Not available * * BOARD_XOSC_ENABLE - Boolean (defined / not defined) * BOARD_XOSC_FREQUENCY - In Hz * BOARD_XOSC_STARTUPTIME - See SYSCTRL_XOSC_STARTUP_* definitions * BOARD_XOSC_ISCRYSTAL - Boolean (defined / not defined) * BOARD_XOSC_AMPGC - Boolean (defined / not defined) * BOARD_XOSC_ONDEMAND - Boolean (defined / not defined) * BOARD_XOSC_RUNINSTANDBY - Boolean (defined / not defined) */ #undef BOARD_XOSC_ENABLE #define BOARD_XOSC_FREQUENCY 12000000UL #define BOARD_XOSC_STARTUPTIME SYSCTRL_XOSC_STARTUP_1S #define BOARD_XOSC_ISCRYSTAL 1 #define BOARD_XOSC_AMPGC 1 #define BOARD_XOSC_ONDEMAND 1 #undef BOARD_XOSC_RUNINSTANDBY /* XOSC32 Configuration -- Not used * * BOARD_XOSC32K_ENABLE - Boolean (defined / not defined) * BOARD_XOSC32K_FREQUENCY - In Hz * BOARD_XOSC32K_STARTUPTIME - See SYSCTRL_XOSC32K_STARTUP_* definitions * BOARD_XOSC32K_ISCRYSTAL - Boolean (defined / not defined) * BOARD_XOSC32K_AAMPEN - Boolean (defined / not defined) * BOARD_XOSC32K_EN1KHZ - Boolean (defined / not defined) * BOARD_XOSC32K_EN32KHZ - Boolean (defined / not defined) * BOARD_XOSC32K_ONDEMAND - Boolean (defined / not defined) * BOARD_XOSC32K_RUNINSTANDBY - Boolean (defined / not defined) */ #undef BOARD_XOSC32K_ENABLE #define BOARD_XOSC32K_FREQUENCY 32768 /* 32.768KHz XTAL */ #define BOARD_XOSC32K_STARTUPTIME SYSCTRL_XOSC32K_STARTUP_2S #define BOARD_XOSC32K_ISCRYSTAL 1 #define BOARD_XOSC32K_AAMPEN 1 #undef BOARD_XOSC32K_EN1KHZ #define BOARD_XOSC32K_EN32KHZ 1 #define BOARD_XOSC32K_ONDEMAND 1 #undef BOARD_XOSC32K_RUNINSTANDBY /* OSC32 Configuration -- not used * * BOARD_OSC32K_ENABLE - Boolean (defined / not defined) * BOARD_OSC32K_FREQUENCY - In Hz * BOARD_OSC32K_STARTUPTIME - See SYSCTRL_OSC32K_STARTUP_* definitions * BOARD_OSC32K_EN1KHZ - Boolean (defined / not defined) * BOARD_OSC32K_EN32KHZ - Boolean (defined / not defined) * BOARD_OSC32K_ONDEMAND - Boolean (defined / not defined) * BOARD_OSC32K_RUNINSTANDBY - Boolean (defined / not defined) */ #undef BOARD_OSC32K_ENABLE #define BOARD_OSC32K_FREQUENCY 32768 /* 32.768kHz internal oscillator */ #define BOARD_OSC32K_STARTUPTIME SYSCTRL_OSC32K_STARTUP_4MS #define BOARD_OSC32K_EN1KHZ 1 #define BOARD_OSC32K_EN32KHZ 1 #define BOARD_OSC32K_ONDEMAND 1 #undef BOARD_OSC32K_RUNINSTANDBY /* OSC8M Configuration -- always enabled * * BOARD_OSC8M_PRESCALER - See SYSCTRL_OSC8M_PRESC_DIV* definitions * BOARD_OSC8M_ONDEMAND - Boolean (defined / not defined) * BOARD_OSC8M_RUNINSTANDBY - Boolean (defined / not defined) */ #define BOARD_OSC8M_PRESCALER SYSCTRL_OSC8M_PRESC_DIV1 #define BOARD_OSC8M_ONDEMAND 1 #undef BOARD_OSC8M_RUNINSTANDBY #define BOARD_OSC8M_FREQUENCY 8000000 /* 8MHz high-accuracy internal oscillator */ /* OSCULP32K Configuration -- not used. */ #define BOARD_OSCULP32K_FREQUENCY 32000 /* 32kHz ultra-low-power internal oscillator */ /* Digital Frequency Locked Loop configuration. In closed-loop mode, the * DFLL output frequency (Fdfll) is given by: * * Fdfll = DFLLmul * Frefclk * = 6 * 8000000 = 48MHz * * Where the reference clock is Generic Clock Channel 0 output of GLCK1. * GCLCK1 provides OSC8M, undivided. * * When operating in open-loop mode, the output frequency of the DFLL will * be determined by the values written to the DFLL Coarse Value bit group * and the DFLL Fine Value bit group in the DFLL Value register. * * BOARD_DFLL_OPENLOOP - Boolean (defined / not defined) * BOARD_DFLL_TRACKAFTERFINELOCK - Boolean (defined / not defined) * BOARD_DFLL_KEEPLOCKONWAKEUP - Boolean (defined / not defined) * BOARD_DFLL_ENABLECHILLCYCLE - Boolean (defined / not defined) * BOARD_DFLL_QUICKLOCK - Boolean (defined / not defined) * BOARD_DFLL_ONDEMAND - Boolean (defined / not defined) * BOARD_DFLL_COARSEVALUE - Value * BOARD_DFLL_FINEVALUE - Value * * Open Loop mode only: * BOARD_DFLL_COARSEVALUE - Value * BOARD_DFLL_FINEVALUE - Value * * Closed loop mode only: * BOARD_DFLL_GCLKGEN - See GCLK_CLKCTRL_GEN* definitions * BOARD_DFLL_MULTIPLIER - Value * BOARD_DFLL_MAXCOARSESTEP - Value * BOARD_DFLL_MAXFINESTEP - Value * * BOARD_DFLL_FREQUENCY - The resulting frequency */ #define BOARD_DFLL_ENABLE 1 #undef BOARD_DFLL_OPENLOOP #undef BOARD_DFLL_ONDEMAND #undef BOARD_DFLL_RUNINSTANDBY /* DFLL open loop mode configuration */ #define BOARD_DFLL_COARSEVALUE (0x1f / 4) #define BOARD_DFLL_FINEVALUE (0xff / 4) /* DFLL closed loop mode configuration */ #define BOARD_DFLL_SRCGCLKGEN GCLK_CLKCTRL_GEN1 #define BOARD_DFLL_MULTIPLIER 6 #define BOARD_DFLL_QUICKLOCK 1 #define BOARD_DFLL_TRACKAFTERFINELOCK 1 #define BOARD_DFLL_KEEPLOCKONWAKEUP 1 #define BOARD_DFLL_ENABLECHILLCYCLE 1 #define BOARD_DFLL_MAXCOARSESTEP (0x1f / 4) #define BOARD_DFLL_MAXFINESTEP (0xff / 4) #define BOARD_DFLL_FREQUENCY (48000000) /* GCLK Configuration * * Global enable/disable. * * BOARD_GCLK_ENABLE - Boolean (defined / not defined) * * For n=1-7: * BOARD_GCLKn_ENABLE - Boolean (defined / not defined) * * For n=0-8: * BOARD_GCLKn_RUN_IN_STANDBY - Boolean (defined / not defined) * BOARD_GCLKn_CLOCK_SOURCE - See GCLK_GENCTRL_SRC_* definitions * BOARD_GCLKn_PRESCALER - Value * BOARD_GCLKn_OUTPUT_ENABLE - Boolean (defined / not defined) */ #define BOARD_GCLK_ENABLE 1 /* GCLK generator 0 (Main Clock) - Source is the DFLL */ #undef BOARD_GCLK0_RUN_IN_STANDBY #define BOARD_GCLK0_CLOCK_SOURCE GCLK_GENCTRL_SRC_DFLL48M #define BOARD_GCLK0_PRESCALER 1 #undef BOARD_GCLK0_OUTPUT_ENABLE #define BOARD_GCLK0_FREQUENCY (BOARD_DFLL_FREQUENCY / BOARD_GCLK0_PRESCALER) /* Configure GCLK generator 1 - Drives the DFLL */ #define BOARD_GCLK1_ENABLE 1 #undef BOARD_GCLK1_RUN_IN_STANDBY #define BOARD_GCLK1_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M #define BOARD_GCLK1_PRESCALER 1 #undef BOARD_GCLK1_OUTPUT_ENABLE #define BOARD_GCLK1_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK1_PRESCALER) /* Configure GCLK generator 2 (RTC) */ #undef BOARD_GCLK2_ENABLE #undef BOARD_GCLK2_RUN_IN_STANDBY #define BOARD_GCLK2_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC32K #define BOARD_GCLK2_PRESCALER 32 #undef BOARD_GCLK2_OUTPUT_ENABLE #define BOARD_GCLK2_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK2_PRESCALER) /* Configure GCLK generator 3 */ #undef BOARD_GCLK3_ENABLE #undef BOARD_GCLK3_RUN_IN_STANDBY #define BOARD_GCLK3_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M #define BOARD_GCLK3_PRESCALER 1 #undef BOARD_GCLK3_OUTPUT_ENABLE #define BOARD_GCLK3_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK3_PRESCALER) /* Configure GCLK generator 4 */ #undef BOARD_GCLK4_ENABLE #undef BOARD_GCLK4_RUN_IN_STANDBY #define BOARD_GCLK4_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M #define BOARD_GCLK4_PRESCALER 1 #undef BOARD_GCLK4_OUTPUT_ENABLE #define BOARD_GCLK4_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK4_PRESCALER) /* Configure GCLK generator 5 */ #undef BOARD_GCLK5_ENABLE #undef BOARD_GCLK5_RUN_IN_STANDBY #define BOARD_GCLK5_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M #define BOARD_GCLK5_PRESCALER 1 #undef BOARD_GCLK5_OUTPUT_ENABLE #define BOARD_GCLK5_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK5_PRESCALER) /* Configure GCLK generator 6 */ #undef BOARD_GCLK6_ENABLE #undef BOARD_GCLK6_RUN_IN_STANDBY #define BOARD_GCLK6_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M #define BOARD_GCLK6_PRESCALER 1 #undef BOARD_GCLK6_OUTPUT_ENABLE #define BOARD_GCLK6_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK6_PRESCALER) /* Configure GCLK generator 7 */ #undef BOARD_GCLK7_ENABLE #undef BOARD_GCLK7_RUN_IN_STANDBY #define BOARD_GCLK7_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M #define BOARD_GCLK7_PRESCALER 1 #undef BOARD_GCLK7_OUTPUT_ENABLE #define BOARD_GCLK7_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK7_PRESCALER) /* The source of the main clock is always GCLK_MAIN. Also called GCLKGEN[0], this is * the clock feeding the Power Manager. The Power Manager, in turn, generates main * clock which is divided down to produce the CPU, AHB, and APB clocks. * * The main clock is initially OSC8M divided by 8. */ #define BOARD_GCLK_MAIN_FREQUENCY BOARD_GCLK0_FREQUENCY /* Main clock dividers * * BOARD_CPU_DIVIDER - See PM_CPUSEL_CPUDIV_* definitions * BOARD_CPU_FRQUENCY - In Hz * BOARD_CPU_FAILDECT - Boolean (defined / not defined) * BOARD_APBA_DIVIDER - See M_APBASEL_APBADIV_* definitions * BOARD_APBA_FRQUENCY - In Hz * BOARD_APBB_DIVIDER - See M_APBBSEL_APBBDIV_* definitions * BOARD_APBB_FRQUENCY - In Hz * BOARD_APBC_DIVIDER - See M_APBCSEL_APBCDIV_* definitions * BOARD_APBC_FRQUENCY - In Hz */ #define BOARD_CPU_FAILDECT 1 #define BOARD_CPU_DIVIDER PM_CPUSEL_CPUDIV_1 #define BOARD_APBA_DIVIDER PM_APBASEL_APBADIV_1 #define BOARD_APBB_DIVIDER PM_APBBSEL_APBBDIV_1 #define BOARD_APBC_DIVIDER PM_APBCSEL_APBCDIV_1 /* Resulting frequencies */ #define BOARD_MCK_FREQUENCY (BOARD_GCLK_MAIN_FREQUENCY) #define BOARD_CPU_FREQUENCY (BOARD_MCK_FREQUENCY) #define BOARD_PBA_FREQUENCY (BOARD_MCK_FREQUENCY) #define BOARD_PBB_FREQUENCY (BOARD_MCK_FREQUENCY) #define BOARD_PBC_FREQUENCY (BOARD_MCK_FREQUENCY) #define BOARD_PBD_FREQUENCY (BOARD_MCK_FREQUENCY) /* FLASH wait states * * Vdd Range Wait states Maximum Operating Frequency * ------------- -------------- --------------------------- * 1.62V to 2.7V 0 14 MHz * 1 28 MHz * 2 42 MHz * 3 48 MHz * 2.7V to 3.63V 0 24 MHz * 1 48 MHz */ #if 0 /* REVISIT -- should not be necessary */ # define BOARD_FLASH_WAITSTATES 1 #else # define BOARD_FLASH_WAITSTATES 2 #endif /* SERCOM definitions ***************************************************************/ /* This is the source clock generator for the GCLK_SERCOM_SLOW clock that is common * to all SERCOM modules. */ #define BOARD_SERCOM_SLOW_GCLKGEN (GCLK_CLKCTRL_GEN0 >> GCLK_CLKCTRL_GEN_SHIFT) /* SERCOM0 SPI is available on EXT1 * * PIN PORT SERCOM FUNCTION * --- ------------------ ----------- * 15 PA5 SERCOM0 PAD1 SPI SS * 16 PA6 SERCOM0 PAD2 SPI MOSI * 17 PA4 SERCOM0 PAD0 SPI MISO * 18 PA7 SERCOM0 PAD3 SPI SCK */ #define BOARD_SERCOM0_GCLKGEN GCLK_CLKCTRL_GEN0 #define BOARD_SERCOM0_MUXCONFIG (SPI_CTRLA_DOPO_DOPAD231 | SPI_CTRLA_DIPAD0) #define BOARD_SERCOM0_PINMAP_PAD0 PORT_SERCOM0_PAD0_2 /* SPI_MISO */ #define BOARD_SERCOM0_PINMAP_PAD1 0 /* microSD_SS */ #define BOARD_SERCOM0_PINMAP_PAD2 PORT_SERCOM0_PAD2_2 /* SPI_MOSI */ #define BOARD_SERCOM0_PINMAP_PAD3 PORT_SERCOM0_PAD3_2 /* SPI_SCK */ #define BOARD_SERCOM0_FREQUENCY BOARD_GCLK0_FREQUENCY /* SERCOM1 SPI is available on EXT2 * * PIN PORT SERCOM FUNCTION * --- ------------------ ----------- * 15 PA17 SERCOM1 PAD1 SPI SS * 16 PA18 SERCOM1 PAD2 SPI MOSI * 17 PA16 SERCOM1 PAD0 SPI MISO * 18 PA19 SERCOM1 PAD3 SPI SCK */ #define BOARD_SERCOM1_GCLKGEN GCLK_CLKCTRL_GEN0 #define BOARD_SERCOM1_MUXCONFIG (SPI_CTRLA_DOPO_DOPAD231 | SPI_CTRLA_DIPAD0) #define BOARD_SERCOM1_PINMAP_PAD0 PORT_SERCOM1_PAD0_1 /* SPI_MISO */ #define BOARD_SERCOM1_PINMAP_PAD1 0 /* microSD_SS */ #define BOARD_SERCOM1_PINMAP_PAD2 PORT_SERCOM1_PAD2_1 /* SPI_MOSI */ #define BOARD_SERCOM1_PINMAP_PAD3 PORT_SERCOM1_PAD3_1 /* SPI_SCK */ #define BOARD_SERCOM1_FREQUENCY BOARD_GCLK0_FREQUENCY /* The SAMD20 Xplained Pro contains an Embedded Debugger (EDBG) that can be * used to program and debug the ATSAMD20J18A using Serial Wire Debug (SWD). * The Embedded debugger also include a Virtual COM port interface over * SERCOM3. Virtual COM port connections: * * PA24 SERCOM3 / USART TXD * PA25 SERCOM3 / USART RXD */ #define BOARD_SERCOM3_GCLKGEN GCLK_CLKCTRL_GEN0 #define BOARD_SERCOM3_MUXCONFIG (USART_CTRLA_RXPAD3 | USART_CTRLA_TXPAD2) #define BOARD_SERCOM3_PINMAP_PAD0 0 #define BOARD_SERCOM3_PINMAP_PAD1 0 #define BOARD_SERCOM3_PINMAP_PAD2 PORT_SERCOM3_PAD2_1 /* USART TX */ #define BOARD_SERCOM3_PINMAP_PAD3 PORT_SERCOM3_PAD3_1 /* USART RX */ #define BOARD_SERCOM3_FREQUENCY BOARD_GCLK0_FREQUENCY /* The SERCOM4 USART is available on connectors EXT1, EXT2, and EXT3 * * PIN EXT1 EXT2 EXT3 GPIO Function * ---- ---- ---- ---- ------------------ * 13 PB09 PB13 PB11 SERCOM4 / USART RX * 14 PB08 PB12 PB12 SERCOM4 / USART TX * 19 GND GND GND N/A * 20 VCC VCC VCC N/A * * If you have a TTL to RS-232 converter then this is the most convenient * serial console to use (because you don't lose the console device each time * you lose the USB connection). It is the default in all of the SAMD20 * configurations. */ #define BOARD_SERCOM4_GCLKGEN GCLK_CLKCTRL_GEN0 #if defined(CONFIG_SAMD20_XPLAINED_USART4_EXT1) # define BOARD_SERCOM4_MUXCONFIG (USART_CTRLA_RXPAD1 | USART_CTRLA_TXPAD0) # define BOARD_SERCOM4_PINMAP_PAD0 PORT_SERCOM4_PAD0_3 /* USART TX */ # define BOARD_SERCOM4_PINMAP_PAD1 PORT_SERCOM4_PAD1_3 /* USART RX */ # define BOARD_SERCOM4_PINMAP_PAD2 0 # define BOARD_SERCOM4_PINMAP_PAD3 0 #elif defined(CONFIG_SAMD20_XPLAINED_USART4_EXT2) # define BOARD_SERCOM4_MUXCONFIG (USART_CTRLA_RXPAD1 | USART_CTRLA_TXPAD0) # define BOARD_SERCOM4_PINMAP_PAD0 PORT_SERCOM4_PAD0_1 /* USART TX */ # define BOARD_SERCOM4_PINMAP_PAD1 PORT_SERCOM4_PAD1_1 /* USART RX */ # define BOARD_SERCOM4_PINMAP_PAD2 0 # define BOARD_SERCOM4_PINMAP_PAD3 0 #else /* if defined(CONFIG_SAMD20_XPLAINED_USART4_EXT3) */ # define BOARD_SERCOM4_MUXCONFIG (USART_CTRLA_RXPAD3 | USART_CTRLA_TXPAD2) # define BOARD_SERCOM4_PINMAP_PAD0 0 # define BOARD_SERCOM4_PINMAP_PAD1 0 # define BOARD_SERCOM4_PINMAP_PAD2 PORT_SERCOM4_PAD2_3 /* USART TX */ # define BOARD_SERCOM4_PINMAP_PAD3 PORT_SERCOM4_PAD3_3 /* USART RX */ #endif #define BOARD_SERCOM4_FREQUENCY BOARD_GCLK0_FREQUENCY /* SERCOM5 SPI is available on EXT3 * * PIN PORT SERCOM FUNCTION * --- ------------------ ----------- * 15 PB17 SERCOM5 PAD1 SPI SS * 16 PB22 SERCOM5 PAD2 SPI MOSI * 17 PB16 SERCOM5 PAD0 SPI MISO * 18 PB23 SERCOM5 PAD3 SPI SCK */ #define BOARD_SERCOM5_GCLKGEN GCLK_CLKCTRL_GEN0 #define BOARD_SERCOM5_MUXCONFIG (SPI_CTRLA_DOPO_DOPAD231 | SPI_CTRLA_DIPAD0) #define BOARD_SERCOM5_PINMAP_PAD0 PORT_SERCOM5_PAD0_1 /* SPI_MISO */ #define BOARD_SERCOM5_PINMAP_PAD1 0 /* microSD_SS */ #define BOARD_SERCOM5_PINMAP_PAD2 PORT_SERCOM5_PAD2_4 /* SPI_MOSI */ #define BOARD_SERCOM5_PINMAP_PAD3 PORT_SERCOM5_PAD3_4 /* SPI_SCK */ #define BOARD_SERCOM5_FREQUENCY BOARD_GCLK0_FREQUENCY /* LED definitions ******************************************************************/ /* There are three LEDs on board the SAMD20 Xplained Pro board: The EDBG * controls two of the LEDs, a power LED and a status LED. There is only * one user controllable LED, a yellow LED labelled STATUS near the SAMD20 USB * connector. * * This LED is controlled by PC07 and the LED can be activated by driving the * PA14 to GND. */ /* LED index values for use with sam_setled() */ #define BOARD_STATUS_LED 0 #define BOARD_NLEDS 1 /* LED bits for use with sam_setleds() */ #define BOARD_STATUS LED_BIT (1 << BOARD_STATUS_LED) /* When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will * control the LED as defined below. Thus if the LED is statically on, NuttX has * successfully booted and is, apparently, running normally. If the LED is * flashing at approximately 2Hz, then a fatal error has been detected and the * system has halted. */ #define LED_STARTED 0 /* STATUS LED=OFF */ #define LED_HEAPALLOCATE 0 /* STATUS LED=OFF */ #define LED_IRQSENABLED 0 /* STATUS LED=OFF */ #define LED_STACKCREATED 1 /* STATUS LED=ON */ #define LED_INIRQ 2 /* STATUS LED=no change */ #define LED_SIGNAL 2 /* STATUS LED=no change */ #define LED_ASSERTION 2 /* STATUS LED=no change */ #define LED_PANIC 3 /* STATUS LED=flashing */ /* Button definitions ***************************************************************/ /* Mechanical buttons: * * The SAMD20 Xplained Pro contains two mechanical buttons. One button is the * RESET button connected to the SAMD20 reset line and the other is a generic user * configurable button. When a button is pressed it will drive the I/O line to GND. * * PA15 SW0 */ /* The SAMD20 Xplained Pro supports one button: */ #define BUTTON_SW0 0 #define NUM_BUTTONS 1 #define BUTTON_SW0_BIT (1 << BUTTON_SW0) /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Function Prototypes ************************************************************************************/ /************************************************************************************ * Name: sam_boardinitialize * * Description: * All SAM3U architectures must provide the following entry point. This entry point * is called early in the initialization -- after all memory has been configured * and mapped but before any devices have been initialized. * ************************************************************************************/ void sam_boardinitialize(void); /************************************************************************************ * Name: sam_ledinit, sam_setled, and sam_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 interfaces are available to * control the LEDs from user applications. * ************************************************************************************/ #ifndef CONFIG_ARCH_LEDS void sam_ledinit(void); void sam_setled(int led, bool ledon); void sam_setleds(uint8_t ledset); #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_SAMD20_XPLAINED_INCLUDE_BOARD_H */