boards: arm: Add support for Silabs EFM32WG-STK3800
The EFM32 Wonder Gecko Starter Kit contains sensors and peripherals demonstarting the usage of the EFM32WG MCU family. This patch add basic support for this board. Signed-off-by: Christian Taedcke <hacking@taedcke.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
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19
boards/arm/efm32wg_stk3800/Kconfig
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19
boards/arm/efm32wg_stk3800/Kconfig
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# Kconfig - EFM32WG STK3800 board configuration
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#
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# Copyright (c) 2017 Christian Taedcke
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#
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_EFM32WG_STK3800
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config BOARD_INIT_PRIORITY
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int
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# omit prompt to signify a "hidden" option
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default KERNEL_INIT_PRIORITY_DEFAULT
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depends on GPIO
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help
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Board initialization priority. This must be bigger than
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GPIO_GECKO_COMMON_INIT_PRIORITY.
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endif # BOARD_EFM32WG_STK3800
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boards/arm/efm32wg_stk3800/Kconfig.board
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boards/arm/efm32wg_stk3800/Kconfig.board
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# Kconfig - EFM32WG STK3800 board
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#
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# Copyright (c) 2017, Christian Taedcke
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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config BOARD_EFM32WG_STK3800
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bool "SiLabs EFM32WG-STK3800 (Wonder Gecko)"
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depends on SOC_SERIES_EFM32WG
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select SOC_PART_NUMBER_EFM32WG990F256
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51
boards/arm/efm32wg_stk3800/Kconfig.defconfig
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boards/arm/efm32wg_stk3800/Kconfig.defconfig
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# Kconfig - EFM32WG STK3800 board
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#
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# Copyright (c) 2017, Christian Taedcke
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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if BOARD_EFM32WG_STK3800
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config BOARD
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default efm32wg_stk3800
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config CMU_HFXO_FREQ
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default 48000000
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config CMU_LFXO_FREQ
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default 32768
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if GPIO_GECKO
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config GPIO_GECKO_PORTA
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def_bool y
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config GPIO_GECKO_PORTB
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def_bool y
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config GPIO_GECKO_PORTC
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def_bool n
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config GPIO_GECKO_PORTD
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def_bool n
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config GPIO_GECKO_PORTE
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def_bool y
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config GPIO_GECKO_PORTF
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def_bool y
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endif # GPIO_GECKO
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if UART_GECKO
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config UART_GECKO_0
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def_bool y
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config UART_GECKO_0_GPIO_LOC
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default 1
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endif # UART_GECKO
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endif # BOARD_EFM32WG_STK3800
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10
boards/arm/efm32wg_stk3800/Makefile
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boards/arm/efm32wg_stk3800/Makefile
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# Makefile - EFM32WG-STK3800 board
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#
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# Copyright (c) 2017, Christian Taedcke
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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ccflags-y +=-I$(srctree)/drivers
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obj-$(CONFIG_UART_GECKO) += board.o
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33
boards/arm/efm32wg_stk3800/board.c
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boards/arm/efm32wg_stk3800/board.c
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/*
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* Copyright (c) 2017 Christian Taedcke
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <init.h>
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#include <board.h>
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#include <gpio.h>
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#include <misc/printk.h>
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static int efm32wg_stk3800_init(struct device *dev)
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{
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struct device *bce_dev; /* Board Controller Enable Gpio Device */
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ARG_UNUSED(dev);
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/* Enable the board controller to be able to use the serial port */
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bce_dev = device_get_binding(BC_ENABLE_GPIO_NAME);
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if (!bce_dev) {
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printk("Board controller gpio port was not found!\n");
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return -ENODEV;
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}
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gpio_pin_configure(bce_dev, BC_ENABLE_GPIO_PIN, GPIO_DIR_OUT);
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gpio_pin_write(bce_dev, BC_ENABLE_GPIO_PIN, 1);
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return 0;
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}
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/* needs to be done after GPIO driver init */
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SYS_INIT(efm32wg_stk3800_init, PRE_KERNEL_1, CONFIG_BOARD_INIT_PRIORITY);
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boards/arm/efm32wg_stk3800/board.h
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boards/arm/efm32wg_stk3800/board.h
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/*
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* Copyright (c) 2017 Christian Taedcke
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __INC_BOARD_H
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#define __INC_BOARD_H
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#include <soc.h>
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/* Push button PB0 */
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#define PB0_GPIO_NAME CONFIG_GPIO_GECKO_PORTB_NAME
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#define PB0_GPIO_PIN 9
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/* Push button PB1 */
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#define PB1_GPIO_NAME CONFIG_GPIO_GECKO_PORTB_NAME
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#define PB1_GPIO_PIN 10
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/* LED 0 */
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#define LED0_GPIO_NAME CONFIG_GPIO_GECKO_PORTE_NAME
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#define LED0_GPIO_PORT LED0_GPIO_NAME
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#define LED0_GPIO_PIN 2
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/* LED 1 */
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#define LED1_GPIO_NAME CONFIG_GPIO_GECKO_PORTE_NAME
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#define LED1_GPIO_PIN 3
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/* Push button switch 0. There is no physical switch on the board with this
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* name, so create an alias to SW3 to make the basic button sample work.
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*/
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#define SW0_GPIO_NAME PB0_GPIO_NAME
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#define SW0_GPIO_PIN PB0_GPIO_PIN
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/* This pin is used to enable the serial port using the board controller */
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#define BC_ENABLE_GPIO_NAME CONFIG_GPIO_GECKO_PORTF_NAME
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#define BC_ENABLE_GPIO_PIN 7
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#endif /* __INC_BOARD_H */
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BIN
boards/arm/efm32wg_stk3800/doc/efm32wg_stk3800.jpg
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BIN
boards/arm/efm32wg_stk3800/doc/efm32wg_stk3800.jpg
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Binary file not shown.
After Width: | Height: | Size: 18 KiB |
174
boards/arm/efm32wg_stk3800/doc/efm32wg_stk3800.rst
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boards/arm/efm32wg_stk3800/doc/efm32wg_stk3800.rst
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.. _efm32wg_stk3800:
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EFM32WG-STK3800
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###############
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Overview
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********
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The EFM32 Wonder Gecko Starter Kit EFM32WG-STK3800 contains a MCU from the
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EFM32WG family built on ARM® Cortex®-M4F processor with excellent low
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power capabilities.
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.. image:: efm32wg_stk3800.jpg
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:width: 375px
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:align: center
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:alt: EFM32WG-STK3800
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Hardware
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********
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- Advanced Energy Monitoring provides real-time information about the energy
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consumption of an application or prototype design.
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- 32MByte parallel NAND Flash
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- 160 segment Energy Micro LCD
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- 2 user buttons, 2 LEDs and a touch slider
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- Ambient Light Sensor and Inductive-capacitive metal sensor
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- On-board Segger J-Link USB debugger
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For more information about the EFM32WG SoC and EFM32WG-STK3800 board:
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- `EFM32WG Website`_
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- `EFM32WG Datasheet`_
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- `EFM32WG Reference Manual`_
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- `EFM32WG-STK3800 Website`_
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- `EFM32WG-STK3800 User Guide`_
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- `EFM32WG-STK3800 Schematics`_
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Supported Features
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==================
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The efm32wg_stk3800oard configuration supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| SYSTICK | on-chip | systick |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| UART | on-chip | serial port-polling; |
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| | | serial port-interrupt |
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+-----------+------------+-------------------------------------+
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The default configuration can be found in the defconfig file:
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``boards/arm/efm32wg_stk3800/efm32wg_stk3800_defconfig``
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Other hardware features are currently not supported by the port.
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Connections and IOs
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===================
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The EFM32WG SoC has six gpio controllers (PORTA to PORTF), but only three are
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currently enabled (PORTB, PORTE and PORTF) for the EFM32WG-STK3800 board.
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In the following table, the column Name contains Pin names. For example, PE2
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means Pin number 2 on PORTE, as used in the board's datasheets and manuals.
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+-------+-------------+-------------------------------------+
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| Name | Function | Usage |
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+=======+=============+=====================================+
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| PE2 | GPIO | LED0 |
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+-------+-------------+-------------------------------------+
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| PE3 | GPIO | LED1 |
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+-------+-------------+-------------------------------------+
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| PB0 | GPIO | Push Button PB0 |
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+-------+-------------+-------------------------------------+
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| PB1 | GPIO | Push Button PB1 |
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+-------+-------------+-------------------------------------+
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| PF7 | GPIO | Board Controller Enable |
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| | | EFM_BC_EN |
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+-------+-------------+-------------------------------------+
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| PE0 | UART0_TX | UART Console EFM_BC_TX U0_TX #1 |
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+-------+-------------+-------------------------------------+
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| PE1 | UART0_RX | UART Console EFM_BC_RX U0_RX #1 |
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+-------+-------------+-------------------------------------+
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System Clock
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============
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The EFM32WG SoC is configured to use the 48 MHz external oscillator on the
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board.
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Serial Port
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===========
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The EFM32WG SoC has three USARTs, two UARTs and two Low Energy UARTs (LEUART).
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UART0 is connected to the board controller and is used for the console.
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Programming and Debugging
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*************************
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.. note:
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Before useing the kit the first time, you should update the J-Link firmware
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from `J-Link-Downloads`_
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Flashing
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========
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The EFM32WG-STK3800 includes an `J-Link`_ serial and debug adaptor built into the
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board. The adaptor provides:
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- A USB connection to the host computer, which exposes a Mass Storage and a
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USB Serial Port.
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- A Serial Flash device, which implements the USB flash disk file storage.
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- A physical UART connection which is relayed over interface USB Serial port.
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Flashing an application to EFM32-STK3800
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----------------------------------------
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The sample application :ref:`hello_world` is used for this example.
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Build the Zephyr kernel and application:
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.. code-block:: console
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$ cd <zephyr_root_path>
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$ . zephyr-env.sh
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$ cd samples/hello_world/
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$ make BOARD=efm32wg_stk3800
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Connect the EFM32WG-STK3800 to your host computer using the USB port and you
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should see a USB connection which exposes a Mass Storage (STK3800) and a
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USB Serial Port. Copy the generated zephyr.bin in the STK3800 drive.
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Open a serial terminal (minicom, putty, etc.) with the following settings:
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- Speed: 115200
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- Data: 8 bits
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- Parity: None
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- Stop bits: 1
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Reset the board and you should be able to see on the corresponding Serial Port
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the following message:
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.. code-block:: console
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Hello World! arm
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.. _EFM32WG-STK3800 Website:
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http://www.silabs.com/products/development-tools/mcu/32-bit/efm32-wonder-gecko-starter-kit
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.. _EFM32WG-STK3800 User Guide:
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http://www.silabs.com/documents/public/user-guides/efm32wg-stk3800-ug.pdf
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.. _EFM32WG-STK3800 Schematics:
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http://www.silabs.com/documents/public/schematic-files/BRD2400A_A00.pdf
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.. _EFM32WG Website:
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http://www.silabs.com/products/mcu/32-bit/efm32-wonder-gecko
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.. _EFM32WG Datasheet:
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http://www.silabs.com/documents/public/data-sheets/EFM32WG990.pdf
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.. _EFM32WG Reference Manual:
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http://www.silabs.com/documents/public/reference-manuals/EFM32WG-RM.pdf
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.. _J-Link:
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https://www.segger.com/jlink-debug-probes.html
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.. _J-Link-Downloads:
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https://www.segger.com/downloads/jlink
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13
boards/arm/efm32wg_stk3800/efm32wg_stk3800.yaml
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boards/arm/efm32wg_stk3800/efm32wg_stk3800.yaml
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identifier: efm32wg_stk3800
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name: EFM32WG-STK3800
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type: mcu
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arch: arm
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ram: 32
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flash: 256
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toolchain:
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- zephyr
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- gccarmemb
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testing:
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ignore_tags:
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- net
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- bluetooth
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11
boards/arm/efm32wg_stk3800/efm32wg_stk3800_defconfig
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boards/arm/efm32wg_stk3800/efm32wg_stk3800_defconfig
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CONFIG_ARM=y
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CONFIG_SOC_FAMILY_EXX32=y
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CONFIG_SOC_SERIES_EFM32WG=y
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CONFIG_BOARD_EFM32WG_STK3800=y
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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CONFIG_SERIAL=y
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CONFIG_CORTEX_M_SYSTICK=y
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CONFIG_GPIO=y
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CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=48000000
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CONFIG_CMU_HFCLK_HFXO=y
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@ -49,6 +49,7 @@ dtb-$(CONFIG_BOARD_STM32_MIN_DEV) = stm32_min_dev.dts_compiled
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dtb-$(CONFIG_BOARD_STM32F3_DISCO) = stm32f3_disco.dts_compiled
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dtb-$(CONFIG_BOARD_OLIMEX_STM32_P405) = olimex_stm32_p405.dts_compiled
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dtb-$(CONFIG_BOARD_STM32F429I_DISC1) = stm32f429i_disc1.dts_compiled
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dtb-$(CONFIG_BOARD_EFM32WG_STK3800) = efm32wg_stk3800.dts_compiled
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always := $(dtb-y)
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endif
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24
dts/arm/efm32wg_stk3800.dts
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24
dts/arm/efm32wg_stk3800.dts
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/*
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* Copyright (c) 2017 I-SENSE group of ICCS
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <silabs/efm32wg.dtsi>
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/ {
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model = "Silicon Labs EFM32WG STK3800 board";
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compatible = "silabs,efm32wg_stk3800", "silabs,efm32wg";
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chosen {
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zephyr,console = &uart0;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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};
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};
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&uart0 {
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current-speed = <115200>;
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status = "ok";
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};
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12
dts/arm/efm32wg_stk3800.fixup
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12
dts/arm/efm32wg_stk3800.fixup
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/* This file is a temporary workaround for mapping of the generated information
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* to the current driver definitions. This will be removed when the drivers
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* are modified to handle the generated information, or the mapping of
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* generated data matches the driver definitions.
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*/
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#define CONFIG_NUM_IRQ_PRIO_BITS ARM_V7M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
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#define CONFIG_UART_GECKO_0_NAME SILABS_EFM32_USART_4000C000_LABEL
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#define CONFIG_UART_GECKO_0_BAUD_RATE SILABS_EFM32_USART_4000C000_CURRENT_SPEED
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#define CONFIG_UART_GECKO_0_IRQ_PRI SILABS_EFM32_USART_4000C000_IRQ_0_PRIORITY
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