/**************************************************************************** * boards/arm/stm32/nucleo-g474re/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-G474RE_INCLUDE_BOARD_H #define __BOARDS_ARM_STM32_NUCLEO-G474RE_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ #include /**************************************************************************** * 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 NucleoG474RE board has one user LED. * * 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 /* LD2 (Green) */ #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 4 user LEDs * on the board. The following definitions describe how NuttX controls the * LEDs: * * |--------------------|-------------------------|------------| * | SYMBOL | Meaning | LED states | * |--------------------|-------------------------|------------| * | LED_STARTED | NuttX has been started | 0 0 0 0 | * | LED_HEAPALLOCATE | Heap has been allocated | 0 0 0 0 | * | LED_IRQSENABLED | Interrupts enabled | 0 0 0 0 | * | LED_STACKCREATED | Idle stack created | 1 0 0 0 | * | 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 | 0 B 0 0 | * | LED_IDLE | STM32 is is sleep mode | Not used | * |--------------------|-------------------------|------------| * * LED states legend: * 0 = off * 1 = on * B = blink */ #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 3 /* Button definitions *******************************************************/ /* Alternate function pin selections ****************************************/ /* USART3 (ST LINK V3E Virtual Console) */ #define GPIO_USART3_TX GPIO_USART3_TX_3 /* PC10 */ #define GPIO_USART3_RX GPIO_USART3_RX_3 /* PC11 */ /* Pin Multiplexing Disambiguation ******************************************/ #endif /* __BOARDS_ARM_STM32_NUCLEO_G474RE_INCLUDE_BOARD_H */