Затворих SWD и JTAG от acident, така че не мога да изтегля нова програма в developmentboard от j-Link. След това се опитвам да използвам j-flash ARM, за да изтрия чипа, и грешката идва така:
Connecting ...
- Connecting via USB to J-Link device 0
- J-Link firmware: V1.20 (J-Link ARM V8 compiled Dec 1 2009 11:42:48)
- JTAG speed: 2000 kHz (Auto)
- Initializing CPU core (Init sequence) ...
- Executing Reset (0, 0 ms)
- Initialized successfully
- JTAG speed: 2000 kHz (Auto)
- Connected successfully
Reading entire flash chip ...
- 64 sectors, 1 range, 0x8000000 - 0x800FFFF
- ERROR: RAM check failed @ address 0x20000000.
- ERROR: Write: 0x03020100 07060504
- ERROR: Read: 0xAAAAAAAA AAAAAAAA
- ERROR: (0 bytes of RAM have been checked successfully)
- ERROR: Failed to read back target memory
Disconnecting ...
- Disconnected
Не знам как да използвам BOOT0
и BOOT1
, за да вляза в режим ISP
. BOOT0
е свързан с GND
.