I working in RAK811. and firmware version is RAK811_v184.108.40.206.H_20200810.hex. I’m working in UART 1 as a UART_USER_MODE. after I’m using UART3 as a UART_USER_MODE In this code I do not define UART1. In updations in firmware, I upload it successfully. I need to correct my code so I’m trying to reconfigure it. but firmware RAK811_v220.127.116.11.H_20200810.hex is successfully done but update firmware is not working in the DFU tool. also at command is not respond.
STM32 cube programmer using for firmware install RAK811_v18.104.22.168.H_20200810.hex.
Update firmware using DFU tools 1.4v.
I have a question which I mention below.
1)How to change UART Mode UART_USER_MODE to UART_NORMAL_MODE in UART1 and UART3?
2) How can at command is not working?
3) How to erase full flash memory in the st controller?? STM32 cube programmer has not erased full UART configuration and device information is still there after erasing memory.
I share you my screenshot for your reference.