From 091a130d655e75bb4d5f24a15883206869e43aa7 Mon Sep 17 00:00:00 2001
From: ozpv <39195175+ozpv@users.noreply.github.com>
Date: Sat, 15 Aug 2026 17:18:25 -0500
Subject: Add files via git push

---
 Core/Src/sai.c | 179 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 179 insertions(+)
 create mode 100755 Core/Src/sai.c

(limited to 'Core/Src/sai.c')

diff --git a/Core/Src/sai.c b/Core/Src/sai.c
new file mode 100755
index 0000000..9bd58d9
--- /dev/null
+++ b/Core/Src/sai.c
@@ -0,0 +1,179 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * File Name          : SAI.c
+  * Description        : This file provides code for the configuration
+  *                      of the SAI instances.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "sai.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+SAI_HandleTypeDef hsai_BlockA1;
+SAI_HandleTypeDef hsai_BlockB1;
+
+/* SAI1 init function */
+void MX_SAI1_Init(void)
+{
+
+  /* USER CODE BEGIN SAI1_Init 0 */
+
+  /* USER CODE END SAI1_Init 0 */
+
+  /* USER CODE BEGIN SAI1_Init 1 */
+
+  /* USER CODE END SAI1_Init 1 */
+
+  /* USER CODE BEGIN SAI1_Init 1 */
+
+  /* USER CODE END SAI1_Init 1 */
+
+  hsai_BlockA1.Instance = SAI1_Block_A;
+  hsai_BlockA1.Init.AudioMode = SAI_MODEMASTER_TX;
+  hsai_BlockA1.Init.Synchro = SAI_ASYNCHRONOUS;
+  hsai_BlockA1.Init.OutputDrive = SAI_OUTPUTDRIVE_DISABLE;
+  hsai_BlockA1.Init.NoDivider = SAI_MCK_OVERSAMPLING_DISABLE;
+  hsai_BlockA1.Init.MckOverSampling = SAI_MCK_OVERSAMPLING_DISABLE;
+  hsai_BlockA1.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_EMPTY;
+  hsai_BlockA1.Init.AudioFrequency = SAI_AUDIO_FREQUENCY_192K;
+  hsai_BlockA1.Init.SynchroExt = SAI_SYNCEXT_DISABLE;
+  hsai_BlockA1.Init.MonoStereoMode = SAI_STEREOMODE;
+  hsai_BlockA1.Init.CompandingMode = SAI_NOCOMPANDING;
+  hsai_BlockA1.Init.TriState = SAI_OUTPUT_NOTRELEASED;
+  if (HAL_SAI_InitProtocol(&hsai_BlockA1, SAI_I2S_STANDARD, SAI_PROTOCOL_DATASIZE_24BIT, 2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  hsai_BlockB1.Instance = SAI1_Block_B;
+  hsai_BlockB1.Init.AudioMode = SAI_MODESLAVE_RX;
+  hsai_BlockB1.Init.Synchro = SAI_SYNCHRONOUS;
+  hsai_BlockB1.Init.OutputDrive = SAI_OUTPUTDRIVE_DISABLE;
+  hsai_BlockB1.Init.MckOverSampling = SAI_MCK_OVERSAMPLING_DISABLE;
+  hsai_BlockB1.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_EMPTY;
+  hsai_BlockB1.Init.SynchroExt = SAI_SYNCEXT_DISABLE;
+  hsai_BlockB1.Init.MonoStereoMode = SAI_STEREOMODE;
+  hsai_BlockB1.Init.CompandingMode = SAI_NOCOMPANDING;
+  hsai_BlockB1.Init.TriState = SAI_OUTPUT_NOTRELEASED;
+  if (HAL_SAI_InitProtocol(&hsai_BlockB1, SAI_I2S_STANDARD, SAI_PROTOCOL_DATASIZE_24BIT, 2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN SAI1_Init 2 */
+
+  /* USER CODE END SAI1_Init 2 */
+
+}
+static uint32_t SAI1_client =0;
+
+void HAL_SAI_MspInit(SAI_HandleTypeDef* saiHandle)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct;
+/* SAI1 */
+    if(saiHandle->Instance==SAI1_Block_A)
+    {
+    /* SAI1 clock enable */
+    if (SAI1_client == 0)
+    {
+       __HAL_RCC_SAI1_CLK_ENABLE();
+    }
+    SAI1_client ++;
+
+    /**SAI1_A_Block_A GPIO Configuration
+    PE2     ------> SAI1_MCLK_A
+    PE4     ------> SAI1_FS_A
+    PE5     ------> SAI1_SCK_A
+    PE6     ------> SAI1_SD_A
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    GPIO_InitStruct.Alternate = GPIO_AF6_SAI1;
+    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
+
+    }
+    if(saiHandle->Instance==SAI1_Block_B)
+    {
+      /* SAI1 clock enable */
+      if (SAI1_client == 0)
+      {
+       __HAL_RCC_SAI1_CLK_ENABLE();
+      }
+    SAI1_client ++;
+
+    /**SAI1_B_Block_B GPIO Configuration
+    PE3     ------> SAI1_SD_B
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_3;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    GPIO_InitStruct.Alternate = GPIO_AF6_SAI1;
+    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
+
+    }
+}
+
+void HAL_SAI_MspDeInit(SAI_HandleTypeDef* saiHandle)
+{
+
+/* SAI1 */
+    if(saiHandle->Instance==SAI1_Block_A)
+    {
+    SAI1_client --;
+    if (SAI1_client == 0)
+      {
+      /* Peripheral clock disable */
+       __HAL_RCC_SAI1_CLK_DISABLE();
+      }
+
+    /**SAI1_A_Block_A GPIO Configuration
+    PE2     ------> SAI1_MCLK_A
+    PE4     ------> SAI1_FS_A
+    PE5     ------> SAI1_SCK_A
+    PE6     ------> SAI1_SD_A
+    */
+    HAL_GPIO_DeInit(GPIOE, GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6);
+
+    }
+    if(saiHandle->Instance==SAI1_Block_B)
+    {
+    SAI1_client --;
+      if (SAI1_client == 0)
+      {
+      /* Peripheral clock disable */
+      __HAL_RCC_SAI1_CLK_DISABLE();
+      }
+
+    /**SAI1_B_Block_B GPIO Configuration
+    PE3     ------> SAI1_SD_B
+    */
+    HAL_GPIO_DeInit(GPIOE, GPIO_PIN_3);
+
+    }
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
-- 
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