| /**************************************************************************** |
| * boards/arm/stm32f0l0g0/stm32l0538-disco/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_STM32F0L0G0_STM32L0538_DISCO_INCLUDE_BOARD_H |
| #define __BOARDS_ARM_STM32F0L0G0_STM32L0538_DISCO_INCLUDE_BOARD_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /* Clocking *****************************************************************/ |
| |
| /* HSI - Internal 16 MHz RC Oscillator |
| * LSI - 32 KHz RC |
| * HSE - 8 MHz from MCO output of ST-LINK |
| * LSE - 32.768 kHz |
| */ |
| |
| #define STM32_BOARD_XTAL 8000000ul |
| |
| #define STM32_HSEBYP_ENABLE |
| #define STM32_HSI_FREQUENCY 16000000ul |
| #define STM32_LSI_FREQUENCY 32000 /* Between 30kHz and 60kHz */ |
| #define STM32_HSE_FREQUENCY STM32_BOARD_XTAL |
| #define STM32_LSE_FREQUENCY 32768 /* X2 on board */ |
| |
| /* PLL source is HSE/1, PLL multipler is 8: |
| * PLL frequency is 8MHz (XTAL) x 8 = 64MHz |
| */ |
| |
| #define STM32_CFGR_PLLSRC RCC_CFGR_PLLSRC |
| #define STM32_CFGR_PLLXTPRE 0 |
| #define STM32_CFGR_PLLMUL RCC_CFGR_PLLMUL_CLKx8 |
| #define STM32_PLL_FREQUENCY (8*STM32_BOARD_XTAL) |
| |
| /* Use the PLL and set the SYSCLK source to be the PLL/2 (32MHz) */ |
| |
| #define STM32_SYSCLK_SW RCC_CFGR_SW_PLL |
| #define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL |
| #define STM32_CFGR_PLLDIV RCC_CFGR_PLLDIV_2 |
| #define STM32_SYSCLK_FREQUENCY STM32_PLL_FREQUENCY/2 |
| |
| /* AHB clock (HCLK) is SYSCLK (32MHz) */ |
| |
| #define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK |
| #define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY |
| |
| /* APB2 clock (PCLK2) is HCLK (32MHz) */ |
| |
| #define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK |
| #define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY |
| #define STM32_APB2_CLKIN (STM32_PCLK2_FREQUENCY) |
| |
| /* APB1 clock (PCLK1) is HCLK/2 (16MHz) */ |
| |
| #define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd2 |
| #define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/2) |
| |
| /* 48MHz clock configuration */ |
| |
| #if defined(CONFIG_STM32F0L0G0_USB) || defined(CONFIG_STM32F0L0G0_RNG) |
| # define STM32_USE_CLK48 1 |
| # define STM32_CLK48_SEL RCC_CCIPR_CLK48SEL_HSI48 |
| # define STM32_HSI48_SYNCSRC SYNCSRC_NONE |
| #endif |
| |
| /* TODO: timers */ |
| |
| /* LED definitions **********************************************************/ |
| |
| /* The STM32L0538-DISCO board has three LEDs. Two of these are controlled by |
| * logic on the board and are not available for software control: |
| * |
| * LD1 COM: LD1 default status is red. LD1 turns to green to indicate that |
| * communications are in progress between the PC and the |
| * ST-LINK/V2-1. |
| * LD3 PWR: red LED indicates that the board is powered. |
| * |
| * And one can be controlled by software: |
| * |
| * User LD2: green LED is a user LED connected to the I/O PA5 of the |
| * STM32L053C8T6. |
| * |
| * If CONFIG_ARCH_LEDS is not defined, then the user can control the LED in |
| * any way. The following definition is used to access the LED. |
| */ |
| |
| /* LED index values for use with board_userled() */ |
| |
| #define BOARD_LED1 0 /* User LD2 */ |
| #define BOARD_NLEDS 1 |
| |
| /* LED bits for use with board_userled_all() */ |
| |
| #define BOARD_LED1_BIT (1 << BOARD_LED1) |
| |
| /* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board |
| * the STM32L0538-DISCO. The following definitions describe how NuttX |
| * controls the LED: |
| * |
| * SYMBOL Meaning LED1 state |
| * ------------------ ----------------------- ---------- |
| * LED_STARTED NuttX has been started OFF |
| * LED_HEAPALLOCATE Heap has been allocated OFF |
| * LED_IRQSENABLED Interrupts enabled OFF |
| * LED_STACKCREATED Idle stack created ON |
| * LED_INIRQ In an interrupt No change |
| * LED_SIGNAL In a signal handler No change |
| * LED_ASSERTION An assertion failed No change |
| * LED_PANIC The system has crashed Blinking |
| * LED_IDLE STM32 is is sleep mode Not used |
| */ |
| |
| #define LED_STARTED 0 |
| #define LED_HEAPALLOCATE 0 |
| #define LED_IRQSENABLED 0 |
| #define LED_STACKCREATED 1 |
| #define LED_INIRQ 2 |
| #define LED_SIGNAL 2 |
| #define LED_ASSERTION 2 |
| #define LED_PANIC 1 |
| |
| /* Button definitions *******************************************************/ |
| |
| /* The STM32L0538-DISCO supports two buttons; only one button is controllable |
| * by software: |
| * |
| * B1 USER: user button connected to the I/O PA0 of the STM32L053C8T6. |
| * B2 RESET: push button connected to NRST is used to RESET the |
| * STM32L053C8T6. |
| */ |
| |
| #define BUTTON_USER 0 |
| #define NUM_BUTTONS 1 |
| |
| #define BUTTON_USER_BIT (1 << BUTTON_USER) |
| |
| /* Alternate function pin selections ****************************************/ |
| |
| /* USART */ |
| |
| /* By default the USART1 is connected to STLINK Virtual COM Port: |
| * USART1_RX - PA10 |
| * USART1_TX - PA9 |
| */ |
| |
| #define GPIO_USART1_RX (GPIO_USART1_RX_1|GPIO_SPEED_HIGH) /* PA10 */ |
| #define GPIO_USART1_TX (GPIO_USART1_TX_1|GPIO_SPEED_HIGH) /* PA9 */ |
| |
| /* SPI1 - E-papper display: |
| * SPI1_MISO - not used |
| * SPI1_MOSI - PB5 |
| * SPI1_SCK - PB3 |
| */ |
| |
| #undef GPIO_SPI1_MISO /* Not used */ |
| #define GPIO_SPI1_MOSI (GPIO_SPI1_MOSI_3|GPIO_SPEED_MEDIUM) /* PB5 */ |
| #define GPIO_SPI1_SCK (GPIO_SPI1_SCK_2|GPIO_SPEED_MEDIUM) /* PB3 */ |
| |
| /* SPI2 - NFC connector: |
| * SPI2_MISO - PB14 |
| * SPI2_MOSI - PB15 |
| * SPI2_SCK - PB13 |
| */ |
| |
| #define GPIO_SPI2_MISO (GPIO_SPI2_MISO_1|GPIO_SPEED_MEDIUM) /* PB14 */ |
| #define GPIO_SPI2_MOSI (GPIO_SPI2_MOSI_1|GPIO_SPEED_MEDIUM) /* PB15 */ |
| #define GPIO_SPI2_SCK (GPIO_SPI2_SCK_3|GPIO_SPEED_MEDIUM) /* PB13 */ |
| |
| #endif /* __BOARDS_ARM_STM32F0L0G0_STM32L0538_DISCO_INCLUDE_BOARD_H */ |
