diff --git a/project/ble_peripheral/ble_app_bladder_patch/measurement/adc121s051/dr_adc121s051.c b/project/ble_peripheral/ble_app_bladder_patch/measurement/adc121s051/dr_adc121s051.c
index 764d0d4..c5bec3c 100644
--- a/project/ble_peripheral/ble_app_bladder_patch/measurement/adc121s051/dr_adc121s051.c
+++ b/project/ble_peripheral/ble_app_bladder_patch/measurement/adc121s051/dr_adc121s051.c
@@ -1095,8 +1095,7 @@ dr_adc_err_t dr_adc_delta_compress(const uint16_t *samples, uint16_t num_samples
 }
 
 
-dr_adc_err_t dr_adc_transmit_channel_delta(const dr_maa_channel_t *ch_data,
-                                            uint8_t *ble_buffer)
+dr_adc_err_t dr_adc_transmit_channel_delta(const dr_maa_channel_t *ch_data, uint8_t *ble_buffer)
 {
     if (ch_data == NULL || ble_buffer == NULL)
     {
@@ -1104,7 +1103,7 @@ dr_adc_err_t dr_adc_transmit_channel_delta(const dr_maa_channel_t *ch_data,
     }
 
     /* Compress data first */
-    static uint8_t delta_buffer[400] = {0};  /* Worst case: 140*3 = 420 bytes */
+    static uint8_t delta_buffer[420] = {0};  /* Worst case when num_samples=140: 140 * 3 = 420 bytes */
     uint16_t compressed_size = 0;
 
     dr_adc_err_t err = dr_adc_delta_compress(ch_data->samples, ch_data->num_samples,