The problem encountered when adding UART

Question

Hello Nordic engineer, 
 I used SDK17.1.0 and examples \ ble_central_and_peripheral \ experimental \ ble_app_multirole_lesc 
 Chip is nRF52811 
 I have completed the addition of Nus and successfully ported the S132 (nRF52832) example to nRF52811 by modifying the chip, ROM, RAM, and define settings. 
 Now I want to add Uart, but I encounter the following problem 
 
 The breakpoint on the left side of the image is at line 1057, while the breakpoint on the right side is at line 1063. Should we check the R0 register? If so, it shows 0x09. Do we need to refer to the diagram below? 
 
 So the error is 'NRF_ERROR_INVALID_LENGTH'? If so, how should the issue be resolved? 
 The following are the ROM and RAM settings I configured, hoping they are helpful for identifying the issue. 
 
 Thanks 
 
 edit new information 
 #define UART_TX_BUF_SIZE 20 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 20 /**< UART RX buffer size. */

Hieu · Accepted Answer

Hi tony55723, 
 Disabling log_init is an approach, as it's likely that log_init() also initialized the app_uart module. However, please be sure if that's what you want. You probably want logging, in which case, it's better to comment out your initialization of the app_uart module instead. 
 We prefer you to open a new thread for questions of new topics. I can answer you quickly that it's possible to filter manually. Please go over the Scanning Module documentation to see if there is a filter better suited your need, or instructions on how to receive the scan report and do manual filtering. I must request that further question on a different topic be made on a new DevZone case though.

The problem encountered when adding UART

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