Hi all,
I tried to upgrade my rak5205/rak7205 with the recent firmware RUI_RAK5205_V3.0.0.12.H.T1(EU868-US915-AU915-KR920-IN865) with the RAK Upgrade Tool
but now I get no echo any more with the RAK_SERIAL_PORT_TOOL_V1.2.1 and even cannot do a full chip erase the the STM32CubeProgrammer or upgrade the BIOS to RUI_RAK5205_BOOT_Version3_0_2
I followed tutorials like
- WisTrio-LoRa-RAK5205
- Burning Bootloader into the Device
- Burning the Firmware into the Device
- Device Firmware Setup
I also found a few similar questions/errors in the last weeks here in the forum and followed the suggestion, without success, like:
- I can’t get my RAK7204 to BOOT mode
- Wrong version firmware
- Unable to burn bootloader on RAK811 Breakout
- RAK5205 shows only ERROR: 3 messages in Serial Port Tool
Here the output of the STM32CubeProgrammer when I try to connect
( with BOOT ” pin and “ VCC ” pin jumped for boot mode)
11:51:45 : Serial Port ttyUSB0 is successfully opened.
11:51:45 : Port configuration: parity = even, baudrate = 115200, data-bit = 8, stop-bit = 1,0, flow-control = off
11:51:45 : Activating device: OK
11:51:45 : Chip ID: 0x429
11:51:45 : BootLoader protocol version: 3.1
11:51:46 : Response received from device: NACK
11:51:46 : Error: Number of bytes to be be read at address: 0x1FF8004C not acknowledged!
11:51:46 : Response received from device: NACK
11:51:46 : Error: READ command not acknowledged at address: 0x1FF8004C
11:51:46 : Error: RDP level is set to 1 (0xBB), try using Read UnProtect (-rdu) command in order to remove the Read Out Protection.
11:51:46 : UPLOADING OPTION BYTES DATA ...
11:51:46 : Bank : 0x00
11:51:46 : Address : 0x1ff80000
11:51:46 : Size : 24 Bytes
11:51:46 : Response received from device: NACK
11:51:46 : Error: READ command not acknowledged at address: 0x1FF80000
11:51:47 : Error: Uploading Option Bytes bank: 0 failed
11:51:47 : Error: Initializing the Option Bytes failed
What would you do to find out and fix the error?
Thanks in advance
Christof