/**************************************************************************** * boards/arm/efm32/olimex-efm32g880f128-stk/include/board.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __BOARDS_ARM_EFM32_OLIMEX_EFM32G880F128_STK_INCLUDE_BOARD_H #define __BOARDS_ARM_EFM32_OLIMEX_EFM32G880F128_STK_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include "hardware/efm32_cmu.h" #include "hardware/efm32_usart.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* Clock Sources * - 1-28 MHz High Frequency RC Oscillator (HFRCO) * - 4-32 MHz High Frequency Crystal Oscillator (HFXO) * - 32.768 kHz Low Frequency RC Oscillator (LFRCO) * - 32.768 kHz Low Frequency Crystal Oscillator (LFXO) * - 1KHz Ultra Low Frequency RC Oscillator (ULFRCO) * * The device boots with 14 MHz HFRCO as the HFCLK source. */ #define BOARD_HAVE_HFXO 1 /* Have High frequency crystal oscillator */ #define BOARD_HAVE_LFXO 1 /* Have Loq frequency crystal oscillator */ #define BOARD_HFRCO_FREQUENCY 14000000 /* 14MHz on reset */ #define BOARD_HFXO_FREQUENCY 32000000 /* 32MHz crystal on board */ #define BOARD_LFRCO_FREQUENCY 32768 /* Low frequency oscillator */ #define BOARD_LFXO_FREQUENCY 32768 /* 32MHz crystal on board */ #define BOARD_ULFRCO_FREQUNCY 1000 /* Ultra low frequency oscillator */ /* HFCLK - High Frequency Clock * * HFCLK is the selected High Frequency Clock. This clock is used by the CMU * and drives the two prescalers that generate HFCORECLK and HFPERCLK. The * HFCLK can be driven by a high-frequency oscillator (HFRCO or HFXO) or one * of the low-frequency oscillators (LFRCO or LFXO). By default the HFRCO is * selected. */ #define BOARD_HFCLKSEL _CMU_CMD_HFCLKSEL_HFXO #define BOARD_HFCLKDIV 0 /* Does not apply to EFM32G */ #define BOARD_HFCLK_FREQUENCY BOARD_HFXO_FREQUENCY /* HFCORECLK - High Frequency Core Clock * * HFCORECLK is a prescaled version of HFCLK. This clock drives the Core * Modules, which consists of the CPU and modules that are tightly coupled * to the CPU, e.g. MSC, DMA etc. The frequency of HFCORECLK is set using * the CMU_HFCORECLKDIV register. */ #define BOARD_HFCORECLKDIV _CMU_HFCORECLKDIV_HFCORECLKDIV_DEFAULT #define BOARD_HFCORECLK_FREQUENCY BOARD_HFXO_FREQUENCY /* HFPERCLK - High Frequency Peripheral Clock * * Like HFCORECLK, HFPERCLK can also be a prescaled version of HFCLK. This * clock drives the High-Frequency Peripherals. The frequency of HFPERCLK is * set using the CMU_HFPERCLKDIV register. */ #define BOARD_HFPERCLKDIV _CMU_HFPERCLKDIV_HFPERCLKDIV_DEFAULT #define BOARD_HFPERCLK_FREQUENCY BOARD_HFXO_FREQUENCY /* LFACLK - Low Frequency A Clock * * LFACLK is the selected clock for the Low Energy A Peripherals. There are * four selectable sources for LFACLK: LFRCO, LFXO, HFCORECLK/2 and ULFRCO. * From reset, the LFACLK source is set to LFRCO. However, note that the * LFRCO is disabled from reset. The selection is configured using the LFA * field in CMU_LFCLKSEL. The HFCORECLK/2 setting allows the Low Energy A * Peripherals to be used as high-frequency peripherals. * * Use _CMU_LFCLKSEL_LFA_DISABLED to disable * ULFRCO is a special case. */ #define BOARD_LFACLKSEL _CMU_LFCLKSEL_LFA_LFXO #undef BOARD_LFACLK_ULFRCO #define BOARD_LFACLK_FREQUENCY BOARD_LFXO_FREQUENCY /* LFBCLK - Low Frequency B Clock * * LFBCLK is the selected clock for the Low Energy B Peripherals. There are * four selectable sources for LFBCLK: LFRCO, LFXO, HFCORECLK/2 and ULFRCO. * From reset, the LFBCLK source is set to LFRCO. However, note that the * LFRCO is disabled from reset. The selection is configured using the LFB * field in CMU_LFCLKSEL. The HFCORECLK/2 setting allows the Low Energy B * Peripherals to be used as high-frequency peripherals. * * Use _CMU_LFCLKSEL_LFB_DISABLED to disable * ULFRCO is a special case. */ #define BOARD_LFBCLKSEL _CMU_LFCLKSEL_LFB_LFXO #undef BOARD_LFBCLK_ULFRCO #define BOARD_LFBCLK_FREQUENCY BOARD_LFXO_FREQUENCY /* PCNTnCLK - Pulse Counter n Clock * * Each available pulse counter is driven by its own clock, PCNTnCLK where * n is the pulse counter instance number. Each pulse counter can be * configured to use an external pin (PCNTn_S0) or LFACLK as PCNTnCLK. */ /* WDOGCLK - Watchdog Timer Clock * * The Watchdog Timer (WDOG) can be configured to use one of three different * clock sources: LFRCO, LFXO or ULFRCO. ULFRCO (Ultra Low Frequency RC * Oscillator) is a separate 1 kHz RC oscillator that also runs in EM3. */ /* AUXCLK - Auxiliary Clock * * AUXCLK is a 1-28 MHz clock driven by a separate RC oscillator, AUXHFRCO. * This clock is used for flash programming and Serial Wire Output (SWO). * During flash programming this clock will be active. If the AUXHFRCO has * not been enabled explicitly by software, the MSC will automatically * start and stop it. The AUXHFRCO is enabled by writing a 1 to AUXHFRCOEN * in CMU_OSCENCMD. This explicit enabling is required when SWO is used. */ /* LEDs *********************************************************************/ /* The EFM32 Gecko Starter Kit supports 4 yellow LEDs. One side is grounded * so these LEDs are illuminated by outputting a high value. * * 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 board_userled() */ #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 board_userled_all() */ #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 EFM32 Gecko Starter Kit. The following definitions describe * how NuttX controls the LEDs in this configuration: */ #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 */ /* Buttons ******************************************************************/ /* The Olimex board has four buttons, BUT1-4. Each is grounded and so should * have a weak pull-up so that it will be sensed as "1" when open and "0" * when closed. * * --------------------- --------------------- * PIN CONNECTIONS * --------------------- --------------------- * PE0/PCNT0_S0IN/U0_TX BUT1, EXT-18 * PE1/PCNT0_S1IN/U0_RX BUT2, EXT-19 * PE2/ACMP0_O BUT3, EXT-20 * PE3/ACMP1_O BUT4, EXT-21 * --------------------- --------------------- */ #define BUTTON_1 0 #define BUTTON_2 1 #define BUTTON_3 2 #define BUTTON_4 3 #define NUM_BUTTONS 4 #define BUTTON_1_BIT (1 << BUTTON_1) #define BUTTON_2_BIT (1 << BUTTON_2) #define BUTTON_3_BIT (1 << BUTTON_3) #define BUTTON_4_BIT (1 << BUTTON_4) /* Pin routing **************************************************************/ /* UART0: * * U0_RX #1 PE1 **AVAILABLE at EXT-19** * U0_TX #1 PE0 **AVAILABLE at EXT-18** */ #define BOARD_UART0_RX_GPIO (GPIO_PORTE|GPIO_PIN1) #define BOARD_UART0_TX_GPIO (GPIO_PORTE|GPIO_PIN0) #define BOARD_UART0_ROUTE_LOCATION _USART_ROUTE_LOCATION_LOC1 /* LEUART1: * * LEU1_RX #0 PC7 LEU1_RX to DB-9 connector * LEU1_TX #0 PC6 LEU1_TX to DB-9 connector */ #define BOARD_LEUART1_RX_GPIO (GPIO_PORTC|GPIO_PIN7) #define BOARD_LEUART1_TX_GPIO (GPIO_PORTC|GPIO_PIN6) #define BOARD_LEUART1_ROUTE_LOCATION _LEUART_ROUTE_LOCATION_LOC0 /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #endif /* __BOARDS_ARM_EFM32_OLIMEX_EFM32G880F128_STK_INCLUDE_BOARD_H */