p igmon
/
uGen4x
PCM Digital Synthesizer
device.cpp
- Committer:
- p_igmon
- Date:
- 2016-09-02
- Revision:
- 0:ad6637c36dc7
File content as of revision 0:ad6637c36dc7:
/** * COPYRIGHT(c) 2014 STMicroelectronics * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ #include "synthesizer.h" /* Private variables ---------------------------------------------------------*/ I2S_HandleTypeDef hi2s2; DMA_HandleTypeDef hdma_i2s2_ext_tx; /* Private function prototypes -----------------------------------------------*/ static void SystemClock_Config(void); static void MX_DMA_Init(void); static void MX_I2S2_Init(void); void uGen4_device_init(void) { /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* Configure the system clock */ SystemClock_Config();// Set RCC I2S Clock /* Initialize all configured peripherals */ MX_GPIO_Init();// GPIO CLOCK Enable MX_DMA_Init(); MX_I2S2_Init(); } /** System Clock Configuration */ static void SystemClock_Config(void) { RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_PeriphCLKInitTypeDef PeriphClkInitStruct; RCC_OscInitTypeDef RCC_OscInitStruct; __PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2); RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = 6; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; RCC_OscInitStruct.PLL.PLLM = 16; RCC_OscInitStruct.PLL.PLLN = 336; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4; RCC_OscInitStruct.PLL.PLLQ = 4; HAL_RCC_OscConfig(&RCC_OscInitStruct); RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2); PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2S; PeriphClkInitStruct.PLLI2S.PLLI2SN = 290; PeriphClkInitStruct.PLLI2S.PLLI2SR = 2; HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct); } /* I2S2 init function */ void MX_I2S2_Init(void) { hi2s2.Instance = SPI2; hi2s2.Init.Mode = I2S_MODE_MASTER_TX; hi2s2.Init.Standard = I2S_STANDARD_PHILLIPS; hi2s2.Init.DataFormat = I2S_DATAFORMAT_16B; hi2s2.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE; hi2s2.Init.AudioFreq = I2S_AUDIOFREQ_44K; hi2s2.Init.CPOL = I2S_CPOL_LOW; hi2s2.Init.ClockSource = I2S_CLOCK_PLL; hi2s2.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE; HAL_I2S_Init(&hi2s2); } /** * Enable DMA controller clock */ void MX_DMA_Init(void) { /* DMA controller clock enable */ __DMA1_CLK_ENABLE(); /* DMA interrupt init */ NVIC_SetVector(DMA1_Stream4_IRQn, (uint32_t )&DMA1_Stream4_IRQHandler); /* Sets the priority grouping field */ HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0); HAL_NVIC_SetPriority(DMA1_Stream4_IRQn, 0, 0); HAL_NVIC_EnableIRQ(DMA1_Stream4_IRQn); } /** Pinout Configuration */ void MX_GPIO_Init(void) { /* GPIO Ports Clock Enable */ __GPIOC_CLK_ENABLE(); __GPIOB_CLK_ENABLE(); __GPIOA_CLK_ENABLE(); } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t* file, uint32_t line) { /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ } #endif /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/