diff options
Diffstat (limited to 'stm32f091/setup.c')
| -rw-r--r-- | stm32f091/setup.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/stm32f091/setup.c b/stm32f091/setup.c new file mode 100644 index 0000000..42f54b3 --- /dev/null +++ b/stm32f091/setup.c @@ -0,0 +1,106 @@ +#include <stm32f0xx_hal.h> +#include <stm32f0xx_hal_rcc.h> +#include <stm32f0xx_hal_i2c.h> +#include <stm32f0xx_hal_uart.h> + +#include "main.h" +#include "setup.h" + +#define B1_Pin GPIO_PIN_13 +#define B1_GPIO_Port GPIOC +#define USART_TX_Pin GPIO_PIN_2 +#define USART_TX_GPIO_Port GPIOA +#define USART_RX_Pin GPIO_PIN_3 +#define USART_RX_GPIO_Port GPIOA +#define LD2_Pin GPIO_PIN_5 +#define LD2_GPIO_Port GPIOA +#define TMS_Pin GPIO_PIN_13 +#define TMS_GPIO_Port GPIOA +#define TCK_Pin GPIO_PIN_14 +#define TCK_GPIO_Port GPIOA + +void SystemClock_Config() { + RCC_OscInitTypeDef RCC_OscInitStruct = {0}; + RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; + RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; + + // Initializes the RCC Oscillators according to the specified parameters in + // the RCC_OscInitTypeDef structure. + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; + RCC_OscInitStruct.HSIState = RCC_HSI_ON; + RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; + RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL12; + RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV2; + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) return Error_Handler(); + + // Initializes the CPU, AHB and APB buses clocks + RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK + |RCC_CLOCKTYPE_PCLK1; + RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; + RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; + RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; + + if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK) return Error_Handler(); + PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2; + PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1; + if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) return Error_Handler(); +} + +void MX_I2C2_Init() { + hi2c2.Instance = I2C2; + hi2c2.Init.Timing = 0x20303E5D; + hi2c2.Init.OwnAddress1 = 0; + hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; + hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; + hi2c2.Init.OwnAddress2 = 0; + hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK; + hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; + hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; + if (HAL_I2C_Init(&hi2c2) != HAL_OK) return Error_Handler(); + if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK) return Error_Handler(); + if (HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0) != HAL_OK) return Error_Handler(); +} + +void MX_USART2_UART_Init() { + huart2.Instance = USART2; + huart2.Init.BaudRate = 115200; + huart2.Init.WordLength = UART_WORDLENGTH_8B; + huart2.Init.StopBits = UART_STOPBITS_1; + huart2.Init.Parity = UART_PARITY_NONE; + huart2.Init.Mode = UART_MODE_TX_RX; + huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; + huart2.Init.OverSampling = UART_OVERSAMPLING_16; + huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; + huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; + if (HAL_UART_Init(&huart2) != HAL_OK) return Error_Handler(); +} + +void MX_GPIO_Init() { + GPIO_InitTypeDef GPIO_InitStruct = {0}; + + __HAL_RCC_GPIOC_CLK_ENABLE(); + __HAL_RCC_GPIOF_CLK_ENABLE(); + __HAL_RCC_GPIOA_CLK_ENABLE(); + __HAL_RCC_GPIOB_CLK_ENABLE(); + + HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET); + + GPIO_InitStruct.Pin = B1_Pin; + GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct); + + GPIO_InitStruct.Pin = LD2_Pin; + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; + HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct); +} + +void Error_Handler() { + __disable_irq(); + for(;;); +} + |