diff --git a/components/bm1397/bm1366.c b/components/bm1397/bm1366.c
index d73f28d3..6141acb5 100644
--- a/components/bm1397/bm1366.c
+++ b/components/bm1397/bm1366.c
@@ -649,7 +649,7 @@ void BM1366_send_work(void * pvParameters, bm_job * next_bm_job)
 asic_result * BM1366_receive_work(void)
 {
     // wait for a response, wait time is pretty arbitrary
-    int received = SERIAL_rx(asic_response_buffer, 11, 60000);
+    int received = SERIAL_rx(asic_response_buffer, 11, 20);
 
     if (received < 0) {
         ESP_LOGI(TAG, "Error in serial RX");
diff --git a/components/bm1397/serial.c b/components/bm1397/serial.c
index dcc1b9a6..2ff61c9d 100644
--- a/components/bm1397/serial.c
+++ b/components/bm1397/serial.c
@@ -60,10 +60,11 @@ int SERIAL_send(uint8_t *data, int len, bool debug)
     return uart_write_bytes(UART_NUM_1, (const char *)data, len);
 }
 
-/// @brief waits for a serial response from the device
-/// @param buf buffer to read data into
-/// @param buf number of ms to wait before timing out
-/// @return number of bytes read, or -1 on error
+/// @brief reads serial bytes into a buffer
+/// @param buf 
+/// @param size 
+/// @param timeout_ms 
+/// @return 
 int16_t SERIAL_rx(uint8_t *buf, uint16_t size, uint16_t timeout_ms)
 {
     int16_t bytes_read = uart_read_bytes(UART_NUM_1, buf, size, timeout_ms / portTICK_PERIOD_MS);