diff --git a/software/boards/hydrausb3/config.h b/software/boards/hydrausb3/config.h
new file mode 100644
index 0000000..fb3325e
--- /dev/null
+++ b/software/boards/hydrausb3/config.h
@@ -0,0 +1,16 @@
+#ifndef _CONFIG_H_
+#define _CONFIG_H_
+
+/* UARTs settings */
+#define UART1_BAUD 115200
+#define UART3_BAUD 115200
+
+/* HSPI Data width : 8 bits */
+#define HSPI_DATA_WIDTH 0
+
+#define HSPI_RX_DMA_LENGTH   4096
+
+extern __attribute__((aligned(16))) volatile uint8_t HSPI_RX_Addr0[HSPI_RX_DMA_LENGTH] __attribute__((section(".DMADATA")));
+extern __attribute__((aligned(16))) volatile uint8_t HSPI_RX_Addr1[HSPI_RX_DMA_LENGTH] __attribute__((section(".DMADATA")));
+
+#endif
\ No newline at end of file