I am testing peripheral UART sample code with nrf5340DK along with some other device. I have connected the UART pins of that device with nrf to receive its data.
I am continuously getting
00> [00:04:27.891,754] <wrn> bt_att: No ATT channel for MTU 43
00> [00:04:27.891,784] <wrn> bt_gatt: No buffer available to send notification
00> [00:04:27.891,784] <wrn> peripheral_uart: Failed to send data over BLE connection
this. I tried to change the MTU size as well by adding:
CONFIG_BT_BUF_ACL_RX_SIZE=251
CONFIG_BT_BUF_ACL_TX_SIZE=251
CONFIG_BT_L2CAP_TX_MTU=247
CONFIG_BT_CTLR_DATA_LENGTH_MAX=251 these commands in prj.conf but it didn't work.
What should I do?
