J-Link connected
Firmware: J-Link ARM V8 compiled Dec  1 2009 11:42:48
Hardware: V8.00
S/N: ###
OEM: SEGGER-EDU
Feature(s): FlashBP

J-Link found 2 JTAG devices, Total IRLen = 9
JTAG ID: 0x3BA00477 (Cortex-M3)

Free mode: To be used for non-commercial and evaluation purposes only.

Connected to 127.0.0.1
Reading all registers
Read 4 bytes @ address 0x00000000 (Data = 0x20005000)
Read 4 bytes @ address 0x00000000 (Data = 0x20005000)
Select auto JTAG speed (1000 kHz)
Target endianess set to "little endian"
Select flash device: stm32f103rb
Flash breakpoints enabled
Flash download enabled
Downloading 4096 bytes @ address 0x08000000
Downloading 4080 bytes @ address 0x08001000
Downloading 3856 bytes @ address 0x08001FF0
Writing register (PC = 0x08000000)
ERROR: Failed to prepare for programming.
Readback during RAM check failed at offset 0x65C: Expected 62, Found  FE.
Please check your flash settings!
Connection to debugger closed !