I am trying to run DDR_Init on the STM32MP135F-DK board using STM32CubeIDE.
When I start a debug session, the state is as shown below, with the PC set to `Reset_Handler`. Upon performing a "Step Into" operation, the PC becomes `0xd00c`. Please tell me what the problem is.
Open On-Chip Debugger 0.12.0-00029-gf77e7cb03 (2023-12-15-13:25) [https://github.com/STMicroelectronics/OpenOCD]
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
srst_only srst_pulls_trst srst_gates_jtag srst_open_drain connect_deassert_srst
Info : Listening on port 64567 for tcl connections
Info : Listening on port 62345 for telnet connections
Info : STLINK V3J17M11B6S1 (API v3) VID:PID 0483:3753
Info : Target voltage: 3.284462
Info : Unable to match requested speed 5000 kHz, using 3300 kHz
Info : Unable to match requested speed 5000 kHz, using 3300 kHz
Info : clock speed 3300 kHz
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Info : STM32MP135FAFx.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : gdb port disabled
Info : gdb port disabled
Info : starting gdb server for STM32MP135FAFx.cpu on 61234
Info : Listening on port 61234 for gdb connections
Info : accepting 'gdb' connection on tcp/61234
Info : STM32MP135FAFx.cpu: MPIDR level2 0, cluster 0, core 0, multi core, no SMT
target halted in Thumb state due to debug-request, current mode: Supervisor
cpsr: 0x400001f3 pc: 0x0000d0d8
MMU: enabled, D-Cache: disabled, I-Cache: enabled
Info : New GDB Connection: 1, Target STM32MP135FAFx.cpu, state: halted
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Info : stlink_dap_op_connect(connect)
Info : SWD DPIDR 0x6ba02477
Warn : STM32MP135FAFx.cpu: ran after reset and before halt ...
target halted in Thumb state due to debug-request, current mode: Supervisor
cpsr: 0x800001f3 pc: 0x00013158
MMU: enabled, D-Cache: disabled, I-Cache: enabled
Warn : target STM32MP135FAFx.cpu is not halted (gdb fileio)
Polling target STM32MP135FAFx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 100ms
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: Target not halted
Error: armv7a_l1_d_cache_sanity_check: target not halted
Error: arm7a_l2x_sanity_check: target not halted
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: armv7a_l1_d_cache_sanity_check: target not halted
Error: arm7a_l2x_sanity_check: target not halted
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: armv7a_l1_d_cache_sanity_check: target not halted
Error: arm7a_l2x_sanity_check: target not halted
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Error: cortex_a_mmu: target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Warn : target not halted
Error: Could not read DSCR register
Error: Error waiting for dpm prepare
Error: unknown/unexpected STLINK status code 0x19
Error: Could not read DSCR register
Error: Error waiting for cortex_a_exec_opcode
Polling target STM32MP135FAFx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 300ms
Polling target STM32MP135FAFx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 700ms
Polling target STM32MP135FAFx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 1500ms
Polling target STM32MP135FAFx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 3100ms
Polling target STM32MP135FAFx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 6300ms
