diff --git a/examples/i2s/i2s_play_from_record/main.c b/examples/i2s/i2s_play_from_record/main.c
index d3198600..79aedb57 100644
--- a/examples/i2s/i2s_play_from_record/main.c
+++ b/examples/i2s/i2s_play_from_record/main.c
@@ -1,128 +1,128 @@
-/**
- * @file fatfs_posix_api.c
- * @brief
- *
- * Copyright (c) 2021 Bouffalolab team
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.  The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- */
-
-#include "hal_i2s.h"
-#include "hal_dma.h"
-#include "bsp_es8388.h"
-
-#define BUFF_SIZE (1 * 1024)
-
-struct device *i2s;
-struct device *dma_ch2, *dma_ch3;
-struct device *uart;
-
-volatile static uint8_t buff_using_num = 0;
-static uint8_t Data_Buff[2][BUFF_SIZE] __attribute__((section(".system_ram"), aligned(4)));
-
-static ES8388_Cfg_Type ES8388Cfg = {
-    .work_mode = ES8388_CODEC_MDOE,          /*!< ES8388 work mode */
-    .role = ES8388_SLAVE,                    /*!< ES8388 role */
-    .mic_input_mode = ES8388_DIFF_ENDED_MIC, /*!< ES8388 mic input mode */
-    .mic_pga = ES8388_MIC_PGA_9DB,           /*!< ES8388 mic PGA */
-    .i2s_frame = ES8388_LEFT_JUSTIFY_FRAME,  /*!< ES8388 I2S frame */
-    .data_width = ES8388_DATA_LEN_16,        /*!< ES8388 I2S dataWitdh */
-};
-
-static void dma_ch3_irq_callback(struct device *dev, void *args, uint32_t size, uint32_t state)
-{
-    device_read(i2s, 0, Data_Buff[!buff_using_num], BUFF_SIZE);
-
-    device_write(i2s, 0, Data_Buff[buff_using_num], BUFF_SIZE);
-
-    buff_using_num = !buff_using_num;
-
-    return;
-}
-
-int main(void)
-{
-    bflb_platform_init(0);
-
-    /* init ES8388 Codec */
-    ES8388_Init(&ES8388Cfg);
-    //ES8388_Reg_Dump();
-    ES8388_Set_Voice_Volume(60);
-
-    /* register & open i2s device */
-    i2s_register(I2S0_INDEX, "I2S", DEVICE_OFLAG_RDWR);
-    i2s = device_find("I2S");
-    if (i2s) {
-        I2S_DEV(i2s)->iis_mode = I2S_MODE_MASTER;
-        I2S_DEV(i2s)->interface_mode = I2S_MODE_LEFT;
-        I2S_DEV(i2s)->sampl_freq_hz = 16 * 1000;
-        I2S_DEV(i2s)->channel_num = I2S_FS_CHANNELS_NUM_2;
-        I2S_DEV(i2s)->frame_size = I2S_FRAME_LEN_16;
-        I2S_DEV(i2s)->data_size = I2S_DATA_LEN_16;
-        I2S_DEV(i2s)->fifo_threshold = 8;
-        device_open(i2s, DEVICE_OFLAG_DMA_TX | DEVICE_OFLAG_DMA_RX);
-    }
-
-    /* register & open dma device */
-    dma_register(DMA0_CH3_INDEX, "dma_ch3_i2s_rx", DEVICE_OFLAG_RDWR);
-    dma_ch3 = device_find("dma_ch3_i2s_rx");
-    if (dma_ch3) {
-        DMA_DEV(dma_ch3)->direction = DMA_PERIPH_TO_MEMORY;
-        DMA_DEV(dma_ch3)->transfer_mode = DMA_LLI_ONCE_MODE;
-        DMA_DEV(dma_ch3)->src_req = DMA_REQUEST_I2S_RX;
-        DMA_DEV(dma_ch3)->dst_req = DMA_REQUEST_NONE;
-        DMA_DEV(dma_ch3)->src_width = DMA_TRANSFER_WIDTH_16BIT;
-        DMA_DEV(dma_ch3)->dst_width = DMA_TRANSFER_WIDTH_16BIT;
-        device_open(dma_ch3, 0);
-
-        /* connect i2s device and dma device */
-        device_control(i2s, DEVICE_CTRL_ATTACH_RX_DMA, (void *)dma_ch3);
-
-        /* Set the interrupt function, for double buffering*/
-        device_set_callback(dma_ch3, dma_ch3_irq_callback);
-        device_control(dma_ch3, DEVICE_CTRL_SET_INT, NULL);
-    }
-
-    dma_register(DMA0_CH2_INDEX, "dma_ch2_i2s_tx", DEVICE_OFLAG_RDWR);
-    dma_ch2 = device_find("dma_ch2_i2s_tx");
-    if (dma_ch2) {
-        DMA_DEV(dma_ch2)->direction = DMA_MEMORY_TO_PERIPH;
-        DMA_DEV(dma_ch2)->transfer_mode = DMA_LLI_ONCE_MODE;
-        DMA_DEV(dma_ch2)->src_req = DMA_REQUEST_NONE;
-        DMA_DEV(dma_ch2)->dst_req = DMA_REQUEST_I2S_TX;
-        DMA_DEV(dma_ch2)->src_width = DMA_TRANSFER_WIDTH_16BIT;
-        DMA_DEV(dma_ch2)->dst_width = DMA_TRANSFER_WIDTH_16BIT;
-        device_open(dma_ch2, 0);
-
-        /* connect i2s device and dma device */
-        device_control(i2s, DEVICE_CTRL_ATTACH_TX_DMA, (void *)dma_ch2);
-
-        /* Set the interrupt function, for double buffering*/
-        device_set_callback(dma_ch2, NULL);
-        device_control(dma_ch2, DEVICE_CTRL_SET_INT, NULL);
-    }
-
-    uart = device_find("debug_log");
-
-    device_read(i2s, 0, Data_Buff[0], BUFF_SIZE);
-    device_write(i2s, 0, Data_Buff[1], BUFF_SIZE);
-
-    BL_CASE_SUCCESS;
-    while (1) {
-        bflb_platform_delay_ms(100);
-    }
-}
+/**
+ * @file fatfs_posix_api.c
+ * @brief
+ *
+ * Copyright (c) 2021 Bouffalolab team
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+#include "hal_i2s.h"
+#include "hal_dma.h"
+#include "bsp_es8388.h"
+
+#define BUFF_SIZE (1 * 1024)
+
+struct device *i2s;
+struct device *dma_ch2, *dma_ch3;
+struct device *uart;
+
+volatile static uint8_t buff_using_num = 0;
+static uint8_t Data_Buff[2][BUFF_SIZE] __attribute__((section(".system_ram"), aligned(4)));
+
+static ES8388_Cfg_Type ES8388Cfg = {
+    .work_mode = ES8388_CODEC_MDOE,          /*!< ES8388 work mode */
+    .role = ES8388_SLAVE,                    /*!< ES8388 role */
+    .mic_input_mode = ES8388_DIFF_ENDED_MIC, /*!< ES8388 mic input mode */
+    .mic_pga = ES8388_MIC_PGA_9DB,           /*!< ES8388 mic PGA */
+    .i2s_frame = ES8388_LEFT_JUSTIFY_FRAME,  /*!< ES8388 I2S frame */
+    .data_width = ES8388_DATA_LEN_16,        /*!< ES8388 I2S dataWitdh */
+};
+
+static void dma_ch3_irq_callback(struct device *dev, void *args, uint32_t size, uint32_t state)
+{
+    device_read(i2s, 0, Data_Buff[!buff_using_num], BUFF_SIZE);
+
+    device_write(i2s, 0, Data_Buff[buff_using_num], BUFF_SIZE);
+
+    buff_using_num = !buff_using_num;
+
+    return;
+}
+
+int main(void)
+{
+    bflb_platform_init(0);
+
+    /* init ES8388 Codec */
+    ES8388_Init(&ES8388Cfg);
+    //ES8388_Reg_Dump();
+    ES8388_Set_Voice_Volume(60);
+
+    /* register & open i2s device */
+    i2s_register(I2S0_INDEX, "I2S", DEVICE_OFLAG_RDWR);
+    i2s = device_find("I2S");
+    if (i2s) {
+        I2S_DEV(i2s)->iis_mode = I2S_MODE_MASTER;
+        I2S_DEV(i2s)->interface_mode = I2S_MODE_LEFT;
+        I2S_DEV(i2s)->sampl_freq_hz = 16 * 1000;
+        I2S_DEV(i2s)->channel_num = I2S_FS_CHANNELS_NUM_2;
+        I2S_DEV(i2s)->frame_size = I2S_FRAME_LEN_16;
+        I2S_DEV(i2s)->data_size = I2S_DATA_LEN_16;
+        I2S_DEV(i2s)->fifo_threshold = 8;
+        device_open(i2s, DEVICE_OFLAG_DMA_TX | DEVICE_OFLAG_DMA_RX);
+    }
+
+    /* register & open dma device */
+    dma_register(DMA0_CH3_INDEX, "dma_ch3_i2s_rx", DEVICE_OFLAG_RDWR);
+    dma_ch3 = device_find("dma_ch3_i2s_rx");
+    if (dma_ch3) {
+        DMA_DEV(dma_ch3)->direction = DMA_PERIPH_TO_MEMORY;
+        DMA_DEV(dma_ch3)->transfer_mode = DMA_LLI_ONCE_MODE;
+        DMA_DEV(dma_ch3)->src_req = DMA_REQUEST_I2S_RX;
+        DMA_DEV(dma_ch3)->dst_req = DMA_REQUEST_NONE;
+        DMA_DEV(dma_ch3)->src_width = DMA_TRANSFER_WIDTH_32BIT;
+        DMA_DEV(dma_ch3)->dst_width = DMA_TRANSFER_WIDTH_32BIT;
+        device_open(dma_ch3, 0);
+
+        /* connect i2s device and dma device */
+        device_control(i2s, DEVICE_CTRL_ATTACH_RX_DMA, (void *)dma_ch3);
+
+        /* Set the interrupt function, for double buffering*/
+        device_set_callback(dma_ch3, dma_ch3_irq_callback);
+        device_control(dma_ch3, DEVICE_CTRL_SET_INT, NULL);
+    }
+
+    dma_register(DMA0_CH2_INDEX, "dma_ch2_i2s_tx", DEVICE_OFLAG_RDWR);
+    dma_ch2 = device_find("dma_ch2_i2s_tx");
+    if (dma_ch2) {
+        DMA_DEV(dma_ch2)->direction = DMA_MEMORY_TO_PERIPH;
+        DMA_DEV(dma_ch2)->transfer_mode = DMA_LLI_ONCE_MODE;
+        DMA_DEV(dma_ch2)->src_req = DMA_REQUEST_NONE;
+        DMA_DEV(dma_ch2)->dst_req = DMA_REQUEST_I2S_TX;
+        DMA_DEV(dma_ch2)->src_width = DMA_TRANSFER_WIDTH_32BIT;
+        DMA_DEV(dma_ch2)->dst_width = DMA_TRANSFER_WIDTH_32BIT;
+        device_open(dma_ch2, 0);
+
+        /* connect i2s device and dma device */
+        device_control(i2s, DEVICE_CTRL_ATTACH_TX_DMA, (void *)dma_ch2);
+
+        /* Set the interrupt function, for double buffering*/
+        device_set_callback(dma_ch2, NULL);
+        device_control(dma_ch2, DEVICE_CTRL_SET_INT, NULL);
+    }
+
+    uart = device_find("debug_log");
+
+    device_read(i2s, 0, Data_Buff[0], BUFF_SIZE);
+    device_write(i2s, 0, Data_Buff[1], BUFF_SIZE);
+
+    BL_CASE_SUCCESS;
+    while (1) {
+        bflb_platform_delay_ms(100);
+    }
+}