179 lines
5.7 KiB
C
179 lines
5.7 KiB
C
/****************************************************************************
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* boards/arm/stm32f0l0g0/stm32g071b-disco/include/board.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_STM32F0L0G0_STM32G071B_DISCO_INCLUDE_BOARD_H
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#define __BOARDS_ARM_STM32F0L0G0_STM32G071B_DISCO_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* HSI - Internal 16 MHz RC Oscillator
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* LSI - 32 KHz RC
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* HSE - 8 MHz from MCO output of ST-LINK
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* LSE - 32.768 kHz
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*/
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#define STM32_BOARD_XTAL 8000000ul
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#define STM32_HSI_FREQUENCY 16000000ul
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#define STM32_LSI_FREQUENCY 32000 /* Between 30kHz and 60kHz */
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#define STM32_HSE_FREQUENCY STM32_BOARD_XTAL
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#define STM32_LSE_FREQUENCY 32768 /* X2 on board */
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/* Main PLL Configuration.
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*
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* PLL source is HSI = 16,000,000
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*
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* PLL_VCOx = (STM32_HSE_FREQUENCY / PLLM) * PLLN
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* Subject to:
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*
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* 1 <= PLLM <= 8
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* 8 <= PLLN <= 86
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* 4 MHz <= PLL_IN <= 16MHz
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* 64 MHz <= PLL_VCO <= 344MHz
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* SYSCLK = PLLRCLK = PLL_VCO / PLLR
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*
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*/
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/* PLL source is HSI, PLLN=50, PLLM=4
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* PLLP enable, PLLQ enable, PLLR enable
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*
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* 2 <= PLLP <= 32
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* 2 <= PLLQ <= 8
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* 2 <= PLLR <= 8
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*
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* PLLR <= 64MHz
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* PLLQ <= 128MHz
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* PLLP <= 128MHz
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*
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* PLL_VCO = (16,000,000 / 4) * 50 = 200 MHz
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*
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* PLLP = PLL_VCO/4 = 200 MHz / 4 = 40 MHz
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* PLLQ = PLL_VCO/4 = 200 MHz / 4 = 40 MHz
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* PLLR = PLL_VCO/4 = 200 MHz / 4 = 40 MHz
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*/
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#define STM32_PLLCFG_PLLSRC RCC_PLLCFG_PLLSRC_HSI
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#define STM32_PLLCFG_PLLCFG (RCC_PLLCFG_PLLPEN | \
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RCC_PLLCFG_PLLQEN | \
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RCC_PLLCFG_PLLREN)
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#define STM32_PLLCFG_PLLM RCC_PLLCFG_PLLM(4)
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#define STM32_PLLCFG_PLLN RCC_PLLCFG_PLLN(50)
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#define STM32_PLLCFG_PLLP RCC_PLLCFG_PLLP(4)
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#define STM32_PLLCFG_PLLQ RCC_PLLCFG_PLLQ(4)
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#define STM32_PLLCFG_PLLR RCC_PLLCFG_PLLR(4)
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#define STM32_VCO_FREQUENCY ((STM32_HSE_FREQUENCY / 2) * 50)
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#define STM32_PLLP_FREQUENCY (STM32_VCO_FREQUENCY / 4)
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#define STM32_PLLQ_FREQUENCY (STM32_VCO_FREQUENCY / 4)
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#define STM32_PLLR_FREQUENCY (STM32_VCO_FREQUENCY / 4)
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/* Use the PLL and set the SYSCLK source to be the PLLR (40MHz) */
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#define STM32_SYSCLK_SW RCC_CFGR_SW_PLL
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#define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL
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#define STM32_SYSCLK_FREQUENCY (STM32_PLLR_FREQUENCY)
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#define STM32_SYSCLK_FREQUENCY (STM32_PLLR_FREQUENCY)
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/* AHB clock (HCLK) is SYSCLK (40MHz) */
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#define STM32_RCC_CFGR_HPRE RCC_CFGR_HPRE_SYSCLK
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#define STM32_HCLK_FREQUENCY STM32_SYSCLK_FREQUENCY
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/* APB1 clock (PCLK1) is HCLK/2 (20MHz) */
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#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd2
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#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/2)
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/* LED definitions **********************************************************/
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/* LED index values for use with board_userled() */
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#define BOARD_LEDSINK 0 /* LD4: SINK mode LED */
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#define BOARD_LEDSOURCE 1 /* LD5: SOURCE mode LED */
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#define BOARD_LEDSPY 2 /* LD6: SPY mode LED */
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#define BOARD_LEDCC 3 /* LD7: CC mode LED */
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#define BOARD_NLEDS 4
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/* LED bits for use with board_userled_all() */
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#define BOARD_LEDSINK_BIT (1 << BOARD_LEDSINK)
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#define BOARD_LEDSOURCE_BIT (1 << BOARD_LEDSOURCE)
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#define BOARD_LEDSPY_BIT (1 << BOARD_LEDSPY)
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#define BOARD_LEDCC_BIT (1 << BOARD_LEDCC)
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/* Button definitions *******************************************************/
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/* The STM32G071B-DISO supports one buttons:
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*
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* B1 RESET: push button connected to NRST is used to RESET the
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* STM32G071RB.
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*
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* and a Joystick:
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*
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* Joystick center - PC0
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* Joystick down - PC2
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* Joystick left - PC1
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* Joystick right - PC3
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* Joystick up - PC4
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*/
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/* Alternate function pin selections ****************************************/
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/* USART */
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/* By default the USART3 is connected to STLINK Virtual COM Port:
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* USART3_RX - PC11
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* USART3_TX - PC10
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*/
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#define GPIO_USART3_RX GPIO_USART3_RX_6 /* PC11 */
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#define GPIO_USART3_TX GPIO_USART3_TX_6 /* PC10 */
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/* I2C1
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* I2C1_SCL - PB6
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* I2C1_SDA - PB7
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*/
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#define GPIO_I2C1_SCL GPIO_I2C1_SCL_2 /* PB6 */
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#define GPIO_I2C1_SDA GPIO_I2C1_SDA_2 /* PB7 */
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/* SPI1 - OLED display
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* SPI1_MISO - not used
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* SPI1_MOSI - PA2
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* SPI1_SCK - PA1
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*/
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#define GPIO_SPI1_MISO 0 /* Not used - simplex tx */
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#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1 /* PA2 */
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#define GPIO_SPI1_SCK GPIO_SPI1_SCK_1 /* PA1 */
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#endif /* __BOARDS_ARM_STM32F0L0G0_STM32G071B_DISCO_INCLUDE_BOARD_H */
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