diff options
Diffstat (limited to 'src/stm32')
| -rw-r--r-- | src/stm32/setup.c | 197 | ||||
| -rw-r--r-- | src/stm32/setup.h | 24 | ||||
| -rw-r--r-- | src/stm32/stm32f0xx_hal_conf.h | 16 |
3 files changed, 230 insertions, 7 deletions
diff --git a/src/stm32/setup.c b/src/stm32/setup.c new file mode 100644 index 0000000..2c3552b --- /dev/null +++ b/src/stm32/setup.c @@ -0,0 +1,197 @@ +#include <stm32f0xx_hal.h> +#include <stm32f0xx_hal_spi.h> +#include <stm32f0xx_hal_uart.h> +#include <stm32f0xx_hal_gpio.h> +#include <FreeRTOS.h> +#include <task.h> + +#include "main.h" +#include "setup.h" +#include "ppu/ppu.h" + +UART_HandleTypeDef huart2 = { + .Instance = USART2, + .Init.BaudRate = 115200, + .Init.WordLength = UART_WORDLENGTH_8B, + .Init.StopBits = UART_STOPBITS_1, + .Init.Parity = UART_PARITY_NONE, + .Init.Mode = UART_MODE_TX_RX, + .Init.HwFlowCtl = UART_HWCONTROL_NONE, + .Init.OverSampling = UART_OVERSAMPLING_16, + .Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE, + .AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT, +}; + +GPIO_InitTypeDef spi_gpio = { + .Pin = HH_IO_SPI_PINS, + .Mode = GPIO_MODE_AF_PP, + .Pull = GPIO_NOPULL, + .Speed = GPIO_SPEED_FREQ_HIGH, + .Alternate = GPIO_AF0_SPI1, +}; + +SPI_HandleTypeDef hspi1 = { + .Instance = SPI1, + .Init.Mode = SPI_MODE_MASTER, + .Init.Direction = SPI_DIRECTION_1LINE, + .Init.DataSize = SPI_DATASIZE_8BIT, + .Init.CLKPolarity = SPI_POLARITY_LOW, + .Init.CLKPhase = SPI_PHASE_1EDGE, + .Init.NSS = SPI_NSS_SOFT, + .Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16, + .Init.FirstBit = SPI_FIRSTBIT_MSB, + .Init.TIMode = SPI_TIMODE_DISABLE, + .Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE, + .Init.CRCPolynomial = 7, + .Init.CRCLength = SPI_CRC_LENGTH_DATASIZE, + .Init.NSSPMode = SPI_NSS_PULSE_DISABLE, +}; + +TIM_HandleTypeDef htim3 = { + .Instance = TIM3, + .Init.Prescaler = 7999, + .Init.CounterMode = TIM_COUNTERMODE_UP, + .Init.Period = 65535, + .Init.ClockDivision = TIM_CLOCKDIVISION_DIV1, + .Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE, +}; + +static void hh_io_spi_setup(); +static void hh_io_tim_setup(); +static void hh_io_usart2_setup(); +static void hh_io_gpio_setup(); +static void hh_io_clock_setup(); +static void hh_io_setup_error_handler(); + +void hh_setup() { + HAL_Init(); + + hh_io_clock_setup(); + hh_io_usart2_setup(); + hh_io_gpio_setup(); + hh_io_spi_setup(); + hh_io_tim_setup(); + + hh_ppu_init(); +} + +void hh_exit() { + hh_ppu_deinit(); + + HAL_DeInit(); +} + +void hh_io_clock_setup() { + if (HAL_OK != HAL_RCC_OscConfig(&(RCC_OscInitTypeDef){ + .OscillatorType = RCC_OSCILLATORTYPE_HSI, + .HSIState = RCC_HSI_ON, + .HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT, + .PLL.PLLState = RCC_PLL_ON, + })) return hh_io_setup_error_handler(); + + // cpu, ahb & apb clocks + if (HAL_OK != HAL_RCC_ClockConfig(&(RCC_ClkInitTypeDef){ + .ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1, + .SYSCLKSource = RCC_SYSCLKSOURCE_HSI, + .AHBCLKDivider = RCC_SYSCLK_DIV1, + .APB1CLKDivider = RCC_HCLK_DIV1, + }, FLASH_LATENCY_1)) return hh_io_setup_error_handler(); + + // usart2 clock (usb serial) + if (HAL_RCCEx_PeriphCLKConfig(&(RCC_PeriphCLKInitTypeDef){ + .PeriphClockSelection = RCC_PERIPHCLK_USART2, + .Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1, + .I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI, + }) != HAL_OK) return hh_io_setup_error_handler(); +} + +void hh_io_spi_setup() { + if (HAL_SPI_Init(&hspi1) != HAL_OK) + return hh_io_setup_error_handler(); +} + +void hh_io_usart2_setup() { + if (HAL_UART_Init(&huart2) != HAL_OK) + return hh_io_setup_error_handler(); +} + +void hh_io_tim_setup() { + if (HAL_TIM_Base_Init(&htim3) != HAL_OK) + return hh_io_setup_error_handler(); + + if (HAL_TIM_ConfigClockSource(&htim3, &(TIM_ClockConfigTypeDef) { + .ClockSource = TIM_CLOCKSOURCE_INTERNAL + }) != HAL_OK) return hh_io_setup_error_handler(); + + if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &(TIM_MasterConfigTypeDef) { + .MasterOutputTrigger = TIM_TRGO_RESET, + .MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE, + }) != HAL_OK) return hh_io_setup_error_handler(); +} + +void hh_io_gpio_setup() { + __HAL_RCC_GPIOA_CLK_ENABLE(); + __HAL_RCC_GPIOB_CLK_ENABLE(); + + HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET); + HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) { + .Pin = GPIO_PIN_9, + .Mode = GPIO_MODE_OUTPUT_PP, + .Pull = GPIO_NOPULL, + .Speed = GPIO_SPEED_FREQ_LOW, + }); + HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) { + .Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_8, + .Mode = GPIO_MODE_INPUT, + .Pull = GPIO_PULLDOWN, + }); +} + +void HAL_MspInit() { + __HAL_RCC_SYSCFG_CLK_ENABLE(); + __HAL_RCC_PWR_CLK_ENABLE(); +} + +void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) { + if(hspi->Instance != SPI1) return; + + __HAL_RCC_SPI1_CLK_ENABLE(); + __HAL_RCC_GPIOA_CLK_ENABLE(); + + HAL_GPIO_Init(HH_IO_SPI_PORT, &spi_gpio); +} + +void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) { + if(hspi->Instance != SPI1) return; + + __HAL_RCC_SPI1_CLK_DISABLE(); + + HAL_GPIO_DeInit(HH_IO_SPI_PORT, HH_IO_SPI_PINS); +} + +void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base) { + if(htim_base->Instance != TIM3) return; + + __HAL_RCC_TIM3_CLK_ENABLE(); +} + +void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base) { + if(htim_base->Instance != TIM3) return; + + __HAL_RCC_TIM3_CLK_DISABLE(); +} + +void SysTick_Handler() { + HAL_IncTick(); + if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED) + xPortSysTickHandler(); +} + +void HardFault_Handler() { + for(;;); +} + +void hh_io_setup_error_handler() { + __disable_irq(); + while (1); +} diff --git a/src/stm32/setup.h b/src/stm32/setup.h new file mode 100644 index 0000000..66d5ff3 --- /dev/null +++ b/src/stm32/setup.h @@ -0,0 +1,24 @@ +#pragma once + +#include <stm32f0xx_hal_spi.h> +#include <stm32f0xx_hal_uart.h> +#include <stm32f0xx_hal_tim.h> +#include <stm32f0xx_hal_gpio.h> + +#define HH_IO_SPI_PINS (GPIO_PIN_5 | GPIO_PIN_7) +#define HH_IO_SPI_PORT GPIOA + +extern UART_HandleTypeDef huart2; // NOLINT +extern GPIO_InitTypeDef spi_gpio; // NOLINT +extern SPI_HandleTypeDef hspi1; // NOLINT +extern TIM_HandleTypeDef htim3; // NOLINT + +// required HAL setup functions +void HAL_MspInit(); // NOLINT +void HAL_UART_MspInit(UART_HandleTypeDef *huart); // NOLINT +void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi); // NOLINT +void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi); // NOLINT +void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base); // NOLINT +void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base); // NOLINT +void HardFault_Handler(); // NOLINT +void SysTick_Handler(); // NOLINT diff --git a/src/stm32/stm32f0xx_hal_conf.h b/src/stm32/stm32f0xx_hal_conf.h index fc27221..84a3b74 100644 --- a/src/stm32/stm32f0xx_hal_conf.h +++ b/src/stm32/stm32f0xx_hal_conf.h @@ -19,16 +19,18 @@ #define DATA_CACHE_ENABLE 0U #define USE_SPI_CRC 0U -#define HAL_RCC_MODULE_ENABLED #define HAL_MODULE_ENABLED -#define HAL_I2C_MODULE_ENABLED -#define HAL_GPIO_MODULE_ENABLED -#define HAL_DMA_MODULE_ENABLED -#define HAL_CORTEX_MODULE_ENABLED -#define HAL_PWR_MODULE_ENABLED -#define HAL_FLASH_MODULE_ENABLED +#define HAL_SPI_MODULE_ENABLED #define HAL_TIM_MODULE_ENABLED #define HAL_UART_MODULE_ENABLED +#define HAL_CORTEX_MODULE_ENABLED +#define HAL_DMA_MODULE_ENABLED +#define HAL_FLASH_MODULE_ENABLED +#define HAL_GPIO_MODULE_ENABLED +#define HAL_EXTI_MODULE_ENABLED +#define HAL_PWR_MODULE_ENABLED +#define HAL_RCC_MODULE_ENABLED +// #define HAL_I2C_MODULE_ENABLED #ifdef HAL_RCC_MODULE_ENABLED #include <stm32f0xx_hal_rcc.h> |