NMP Time out while using mcumgr

[Tharak]

Hi Nordic,

1. I am planning to do DFU update with UART

2. I Build smp_svr and flashed successfully when am using mcumgr its getting NMP Timeout

3.  I added CONFIG_MCUMGR_SMP_UART=y into the prj.conf

4. mcumgr --conntype serial --connstring "com8" echo hello 

5. 

[Simon]

I would recommend getting an nRF52833 DK: https://www.nordicsemi.com/Products/Development-hardware/nrf52833-dk

Have you tried disabling mass storage? 

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.1/zephyr/guides/tools/nordic_segger.html#disabling-the-mass-storage-device-functionality 

Serial DFU --> Testing

Best regards,

Simon

[Tharak]

Hi Simon,

1.ya you recommendation board i will use but right now i have only bl653_dvk

2. In bl653_dvk board we cant run uart dfu?

3. ya i diabled mass storage

4. ya i did same testing but still i am getting NMP time out

[Simon]

Could you do some debugging on the bl653_dvk and check if anything is received?

Put a break point or add printk RTT log (see Modify the Hello World sample how to enable RTT logging) at these places to see if it's executes:

• \zephyr\drivers\console\uart_mcumgr.c-->uart_mcumgr_async()
• \zephyr\drivers\console\uart_mcumgr.c-->uart_mcumgr_isr()
• \zephyr\subsys\mgmt\mcumgr\smp_uart.c-->smp_uart_rx_frag()
• \zephyr\subsys\mgmt\mcumgr\smp.c-->zephyr_smp_rx_req()
• \zephyr\subsys\mgmt\mcumgr\lib\smp\src\smp.c-->smp_handle_single_payload()

Best regards,

Simon