device.cpp

00001 /**
00002   * COPYRIGHT(c) 2014 STMicroelectronics
00003   *
00004   * Redistribution and use in source and binary forms, with or without modification,
00005   * are permitted provided that the following conditions are met:
00006   *   1. Redistributions of source code must retain the above copyright notice,
00007   *      this list of conditions and the following disclaimer.
00008   *   2. Redistributions in binary form must reproduce the above copyright notice,
00009   *      this list of conditions and the following disclaimer in the documentation
00010   *      and/or other materials provided with the distribution.
00011   *   3. Neither the name of STMicroelectronics nor the names of its contributors
00012   *      may be used to endorse or promote products derived from this software
00013   *      without specific prior written permission.
00014   *
00015   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00016   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00017   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00018   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00019   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00020   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00021   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00022   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00023   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00024   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00025   *
00026   ******************************************************************************
00027   */
00028 
00029 #include "synthesizer.h"
00030 
00031 /* Private variables ---------------------------------------------------------*/
00032 I2S_HandleTypeDef hi2s2;
00033 DMA_HandleTypeDef hdma_i2s2_ext_tx;
00034 
00035 
00036 /* Private function prototypes -----------------------------------------------*/
00037 static void SystemClock_Config(void);
00038 static void MX_DMA_Init(void);
00039 static void MX_I2S2_Init(void);
00040 
00041 
00042 void uGen4_device_init(void)
00043 {
00044   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
00045   HAL_Init();
00046 
00047   /* Configure the system clock */
00048   SystemClock_Config();// Set RCC I2S Clock
00049 
00050   /* Initialize all configured peripherals */
00051   MX_GPIO_Init();// GPIO CLOCK Enable
00052   MX_DMA_Init();
00053   MX_I2S2_Init();
00054 }
00055 
00056 
00057 /** System Clock Configuration
00058 */
00059 static void SystemClock_Config(void)
00060 {
00061 
00062   RCC_ClkInitTypeDef RCC_ClkInitStruct;
00063   RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
00064   RCC_OscInitTypeDef RCC_OscInitStruct;
00065 
00066   __PWR_CLK_ENABLE();
00067 
00068   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
00069 
00070   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
00071   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
00072   RCC_OscInitStruct.HSICalibrationValue = 6;
00073   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
00074   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
00075   RCC_OscInitStruct.PLL.PLLM = 16;
00076   RCC_OscInitStruct.PLL.PLLN = 336;
00077   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
00078   RCC_OscInitStruct.PLL.PLLQ = 4;
00079   HAL_RCC_OscConfig(&RCC_OscInitStruct);
00080 
00081   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
00082   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
00083   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
00084   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
00085   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
00086   HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
00087 
00088   PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2S;
00089   PeriphClkInitStruct.PLLI2S.PLLI2SN = 290;
00090   PeriphClkInitStruct.PLLI2S.PLLI2SR = 2;
00091   HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
00092 
00093 }
00094 
00095 /* I2S2 init function */
00096 void MX_I2S2_Init(void)
00097 {
00098 
00099   hi2s2.Instance = SPI2;
00100   hi2s2.Init.Mode = I2S_MODE_MASTER_TX;
00101   hi2s2.Init.Standard = I2S_STANDARD_PHILLIPS;
00102   hi2s2.Init.DataFormat = I2S_DATAFORMAT_16B;
00103   hi2s2.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
00104   hi2s2.Init.AudioFreq = I2S_AUDIOFREQ_44K;
00105   hi2s2.Init.CPOL = I2S_CPOL_LOW;
00106   hi2s2.Init.ClockSource = I2S_CLOCK_PLL;
00107   hi2s2.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE;
00108   HAL_I2S_Init(&hi2s2);
00109 
00110 }
00111 
00112 
00113 /** 
00114   * Enable DMA controller clock
00115   */
00116 void MX_DMA_Init(void) 
00117 {
00118   /* DMA controller clock enable */
00119   __DMA1_CLK_ENABLE();
00120 
00121   /* DMA interrupt init */
00122   NVIC_SetVector(DMA1_Stream4_IRQn, (uint32_t )&DMA1_Stream4_IRQHandler);
00123     /* Sets the priority grouping field */
00124   HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0);
00125   HAL_NVIC_SetPriority(DMA1_Stream4_IRQn, 0, 0);
00126   HAL_NVIC_EnableIRQ(DMA1_Stream4_IRQn);
00127 }
00128 
00129 /** Pinout Configuration
00130 */
00131 void MX_GPIO_Init(void)
00132 {
00133 
00134   /* GPIO Ports Clock Enable */
00135   __GPIOC_CLK_ENABLE();
00136   __GPIOB_CLK_ENABLE();
00137   __GPIOA_CLK_ENABLE();
00138 
00139 }
00140 
00141 
00142 #ifdef USE_FULL_ASSERT
00143 
00144 /**
00145    * @brief Reports the name of the source file and the source line number
00146    * where the assert_param error has occurred.
00147    * @param file: pointer to the source file name
00148    * @param line: assert_param error line source number
00149    * @retval None
00150    */
00151 void assert_failed(uint8_t* file, uint32_t line)
00152 {
00153   /* User can add his own implementation to report the file name and line number,
00154     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00155 
00156 }
00157 
00158 #endif
00159 
00160 
00161 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
00162 
00163 
00164 
00165