diff --git a/app/main.c b/app/main.c
index 1cebf4f..e5003ae 100644
--- a/app/main.c
+++ b/app/main.c
@@ -43,11 +43,24 @@ void main() {
 #endif
 
 // EEPROM_TEST
-#if 0
+#if 1
 static void test_tx_timer_cb(void* p_context) {
   static uint32_t data;
   data++;
   // ZLOGI("test_tx_timer_cb %d", data);
+
+  static uint8_t eepromw_test_data[256];
+  static uint8_t eepromw_rx_data[256];
+  for (size_t i = 0; i < 256; i++) {
+    eepromw_test_data[i] = i;
+  }
+  // SingleLeadECG_eeprom_write(0, eepromw_test_data, 256);
+
+    SingleLeadECG_eeprom_read(0, eepromw_rx_data, 256);
+  // for (size_t i = 0; i < 256; i++) {
+  //   ZLOGI("eepromw_rx_data[%d] = %d", i, eepromw_rx_data[i]);
+  //   NRF_LOG_INTERNAL_FLUSH();
+  // }
 }
 
 extern uint32_t g_nrf_log_tx_pin;
@@ -60,15 +73,10 @@ void main() {
   // SingleLeadECG_beep_init();
   // SingleLeadECG_beep_set_state(false);
   NRF_LOG_INFO("compile time :%s %d", __TIME__, APP_TIMER_TICKS(100));
-    NRF_LOG_INTERNAL_FLUSH();
+  NRF_LOG_INTERNAL_FLUSH();
 
   SingleLeadECG_eeprom_init();
-  static uint8_t eepromw_test_data[256];
-  static uint8_t eepromw_rx_data[256];
-  for (size_t i = 0; i < 256; i++) {
-    eepromw_test_data[i] = i;
-  }
-  SingleLeadECG_eeprom_write(0, eepromw_test_data, 256);
+
   // nrf_delay_ms(20);
   // SingleLeadECG_eeprom_read(0, eepromw_rx_data, 256);
   // for (size_t i = 0; i < 256; i++) {
@@ -125,7 +133,7 @@ void main() {
  *                                  ECG                                        *
  *******************************************************************************/
 
-#if 1
+#if 0
 #define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
 #define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
 uint32_t                     err_code;
diff --git a/app/src/one_conduction/one_conduction_board.c b/app/src/one_conduction/one_conduction_board.c
index 0692535..30c39f3 100644
--- a/app/src/one_conduction/one_conduction_board.c
+++ b/app/src/one_conduction/one_conduction_board.c
@@ -204,13 +204,18 @@ int16_t SingleLeadECG_battery_get_adc_val() {
 static const nrf_drv_twi_t m_eeprom_twi_master = NRF_DRV_TWI_INSTANCE(EEPROM_I2C_INSTANCE);
 
 void SingleLeadECG_eeprom_init() {
-  const nrf_drv_twi_config_t config = {
-      .scl                = EEPROM_I2C_SCL_M,
-      .sda                = EEPROM_I2C_SDA_M,
-      .frequency          = NRF_DRV_TWI_FREQ_100K,
-      .interrupt_priority = APP_IRQ_PRIORITY_HIGH,
-      .clear_bus_init     = false,
-  };
+   nrf_drv_twi_config_t config = NRF_DRV_TWI_DEFAULT_CONFIG;
+  
+  config.scl = EEPROM_I2C_SCL_M;
+  config.sda = EEPROM_I2C_SDA_M;
+  config.frequency = NRF_DRV_TWI_FREQ_100K;
+  // {
+  //     .scl                = EEPROM_I2C_SCL_M,
+  //     .sda                = EEPROM_I2C_SDA_M,
+  //     .frequency          = NRF_DRV_TWI_FREQ_100K,
+  //     .interrupt_priority = APP_IRQ_PRIORITY_HIGH,
+  //     .clear_bus_init     = false,
+  // };
 
   ZERROR_CHECK(nrf_drv_twi_init(&m_eeprom_twi_master, &config, NULL, NULL));
   nrf_drv_twi_enable(&m_eeprom_twi_master);
@@ -233,8 +238,8 @@ static void assign_i2c_add(uint32_t add, bool wr, uint8_t *i2cadd, uint8_t *mema
   *i2cadd        = 0xA0;
   uint8_t a16a17 = (add >> 16) & 0x03;
   *i2cadd |= a16a17 << 1;
+  *i2cadd = *i2cadd >>1;
 
-  *i2cadd = wr ? *i2cadd & 0xFE : *i2cadd | 0x01;
 
   *memadd0 = add >> 8;
   *memadd1 = add & 0xFF;
@@ -246,6 +251,7 @@ void SingleLeadECG_eeprom_write(uint16_t page, uint8_t *data, uint16_t len) {  /
   uint8_t deviceSelect = 0;
 
   assign_i2c_add(addr, true, &deviceSelect, &eeprom_cache[0], &eeprom_cache[1]);
+  memcpy(&eeprom_cache[2], data, len);
   ret_code_t ecode = nrf_drv_twi_tx(&m_eeprom_twi_master, deviceSelect, eeprom_cache, len + 2, false);
   if (ecode != NRF_SUCCESS) {
     ZLOGE("nrf_drv_twi_tx error %x", ecode);
diff --git a/sdk b/sdk
index f744df9..891e025 160000
--- a/sdk
+++ b/sdk
@@ -1 +1 @@
-Subproject commit f744df9ff76d9a7a4b3739dfb571f1b3f82312ae
+Subproject commit 891e025a95a79080ca47af7cb4daa2392c877cc0