fix(split): set conn param from central, not peripheral

Signed-off-by: Haobo Gu <[email protected]>

rmk/src/split/nrf/central.rs

@@ -64,6 +64,12 @@ pub(crate) async fn run_ble_client(
     loop {
         let addrs = &[&Address::new(AddressType::RandomStatic, addr)];
         let mut config: central::ConnectConfig<'_> = central::ConnectConfig::default();
+        config.conn_params = nrf_softdevice::raw::ble_gap_conn_params_t {
+            min_conn_interval: 6,
+            max_conn_interval: 6,
+            slave_latency: 99,
+            conn_sup_timeout: 500, // timeout: 5s
+        };
         config.scan_config.whitelist = Some(addrs);
         let conn = loop {
             if let Ok(_) =

rmk/src/split/peripheral.rs

@@ -250,12 +250,7 @@ pub(crate) async fn initialize_nrf_ble_split_peripheral_and_run<
         let mut peripheral = SplitPeripheral::new(BleSplitPeripheralDriver::new(&server, &conn));
         let peripheral_fut = peripheral.run();
         let matrix_fut = matrix.scan();
-        select3(
-            matrix_fut,
-            join(server_fut, set_conn_params(&conn)),
-            peripheral_fut,
-        )
-        .await;
+        select3(matrix_fut, server_fut, peripheral_fut).await;
     }
 }