3 files changed, 89 insertions, 0 deletions
diff --git a/Core/Inc/cs4272.h b/Core/Inc/cs4272.h
new file mode 100755
index 0000000..30e493a
--- /dev/null
+++ b/Core/Inc/cs4272.h
@@ -0,0 +1,35 @@
+/*
+ * cs4272.h
+ *
+ *  Created on: Aug 16, 2026
+ *      Author: ozpv
+ */
+
+#ifndef INC_CS4272_H_
+#define INC_CS4272_H_
+
+// cs4272k-czzr 7. REGISTER QUICK REFERENCE
+#define MODE_CONTROL_1 0x01
+#define DAC_CONTROL 0x02
+#define DAC_VOLUME_AND_MIXING_CONTROL 0x03
+#define DAC_CH_A_VOLUME_CONTROL 0x04
+#define DAC_CH_B_VOLUME_CONTROL 0x05
+#define ADC_CONTROL 0x06
+#define MODE_CONTROL_2 0x07
+#define CHIP_ID 0x08
+
+#define CS4272_CHIP_ID 0x0
+
+// set by ncs/ad0 pin
+#define CS4272_I2C_ADDR (0b0010000 << 1)
+
+#define BUFFER_SIZE 512
+
+extern volatile int32_t rx_buffer[BUFFER_SIZE];
+extern volatile int32_t tx_buffer[BUFFER_SIZE];
+
+extern const uint8_t CS4272_CONFIG[7];
+
+uint8_t CS4272_Init();
+
+#endif /* INC_CS4272_H_ */
diff --git a/Core/Inc/dma.h b/Core/Inc/dma.h
new file mode 100755
index 0000000..cbf3957
--- /dev/null
+++ b/Core/Inc/dma.h
@@ -0,0 +1,52 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    dma.h
+  * @brief   This file contains all the function prototypes for
+  *          the dma.c file
+  ******************************************************************************
+  * @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 */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __DMA_H__
+#define __DMA_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* DMA memory to memory transfer handles -------------------------------------*/
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_DMA_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __DMA_H__ */
+
diff --git a/Core/Inc/stm32h7xx_it.h b/Core/Inc/stm32h7xx_it.h
index b176787..c630d61 100755
--- a/Core/Inc/stm32h7xx_it.h
+++ b/Core/Inc/stm32h7xx_it.h
@@ -55,6 +55,8 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void DMA1_Stream0_IRQHandler(void);
+void DMA1_Stream1_IRQHandler(void);
 void OTG_HS_EP1_OUT_IRQHandler(void);
 void OTG_HS_EP1_IN_IRQHandler(void);
 void OTG_HS_IRQHandler(void);