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nuttx/boards/arm/stm32/nucleo-g431rb/include/board.h

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/****************************************************************************
* boards/arm/stm32/nucleo-g431rb/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_STM32_NUCLEO_G431RB_INCLUDE_BOARD_H
#define __BOARDS_ARM_STM32_NUCLEO_G431RB_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Clocking *****************************************************************/
#undef STM32_BOARD_XTAL /* Not installed by default */
#define STM32_HSI_FREQUENCY 16000000ul /* 16MHz */
#define STM32_LSI_FREQUENCY 32000 /* 32kHz */
#undef STM32_HSE_FREQUENCY /* Not installed by default */
#undef STM32_LSE_FREQUENCY /* Not available on this board */
/* Main PLL Configuration.
*
* PLL source is HSI = 16MHz
* PLLN = 85, PLLM = 4, PLLP = 10, PLLQ = 2, PLLR = 2
*
* f(VCO Clock) = f(PLL Clock Input) x (PLLN / PLLM)
* f(PLL_P) = f(VCO Clock) / PLLP
* f(PLL_Q) = f(VCO Clock) / PLLQ
* f(PLL_R) = f(VCO Clock) / PLLR
*
* Where:
* 8 <= PLLN <= 127
* 1 <= PLLM <= 16
* PLLP = 2 through 31
* PLLQ = 2, 4, 6, or 8
* PLLR = 2, 4, 6, or 8
*
* Do not exceed 170MHz on f(PLL_P), f(PLL_Q), or f(PLL_R).
* 64MHz <= f(VCO Clock) <= 344MHz.
*
* Given the above:
*
* f(VCO Clock) = HSI x PLLN / PLLM
* = 16MHz x 85 / 4
* = 340MHz
*
* PLLPCLK = f(VCO Clock) / PLLP
* = 340MHz / 10
* = 34MHz
* (May be used for ADC)
*
* PLLQCLK = f(VCO Clock) / PLLQ
* = 340MHz / 2
* = 170MHz
* (May be used for QUADSPI, FDCAN, SAI1, I2S3. If set to
* 48MHz, may be used for USB, RNG.)
*
* PLLRCLK = f(VCO Clock) / PLLR
* = 340MHz / 2
* = 170MHz
* (May be used for SYSCLK and most peripherals.)
*/
#define STM32_PLLCFGR_PLLSRC RCC_PLLCFGR_PLLSRC_HSI
#define STM32_PLLCFGR_PLLCFG (RCC_PLLCFGR_PLLPEN | \
RCC_PLLCFGR_PLLQEN | \
RCC_PLLCFGR_PLLREN)
#define STM32_PLLCFGR_PLLN RCC_PLLCFGR_PLLN(85)
#define STM32_PLLCFGR_PLLM RCC_PLLCFGR_PLLM(4)
#define STM32_PLLCFGR_PLLP RCC_PLLCFGR_PLLPDIV(10)
#define STM32_PLLCFGR_PLLQ RCC_PLLCFGR_PLLQ_2
#define STM32_PLLCFGR_PLLR RCC_PLLCFGR_PLLR_2
#define STM32_VCO_FREQUENCY ((STM32_HSI_FREQUENCY / 4) * 85)
#define STM32_PLLP_FREQUENCY (STM32_VCO_FREQUENCY / 10)
#define STM32_PLLQ_FREQUENCY (STM32_VCO_FREQUENCY / 2)
#define STM32_PLLR_FREQUENCY (STM32_VCO_FREQUENCY / 2)
/* Use the PLL and set the SYSCLK source to be PLLR (170MHz) */
#define STM32_SYSCLK_SW RCC_CFGR_SW_PLL
#define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL
#define STM32_SYSCLK_FREQUENCY STM32_PLLR_FREQUENCY
/* AHB clock (HCLK) is SYSCLK (170MHz) */
#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK
#define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY
/* APB1 clock (PCLK1) is HCLK (170MHz) */
#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK
#define STM32_PCLK1_FREQUENCY STM32_HCLK_FREQUENCY
/* APB2 clock (PCLK2) is HCLK (170MHz) */
#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK
#define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY
/* LED definitions **********************************************************/
/* The NUCLEO-G431RB has four user LEDs.
*
* 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 /* 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 Nucleo G431RB. 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 Nucleo G431RB supports two buttons; only one button is controllable
* by software:
*
* B1 USER: user button connected to the I/O PC13 of the STM32G431RB.
* B2 RESET: push button connected to NRST is used to RESET the
* STM32G431RB.
*/
#define BUTTON_USER 0
#define NUM_BUTTONS 1
#define BUTTON_USER_BIT (1 << BUTTON_USER)
/* Alternate function pin selections ****************************************/
/* USART2 (STLINK Virtual COM Port) */
#define GPIO_USART2_TX GPIO_USART2_TX_1 /* PA2 */
#define GPIO_USART2_RX GPIO_USART2_RX_1 /* PA3 */
/* Pin Multiplexing Disambiguation ******************************************/
#endif /* __BOARDS_ARM_STM32_NUCLEO_G431RB_INCLUDE_BOARD_H */
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