Can't flash

[chen010311]

FLASH:MX25U12835FM2L-10G 16MB
I tried to wait, but it always showed unknown. Is my flash broken?

game-and-watch-retro-go wumengjia$ sudo make LARGE_FLASH=1 flash
[ BASH ] Checking for updated roms
'LCD-Game-Emulator'
'retro-go-stm32'
[ LD ] gw_retro_go.elf
text data bss dec hex filename
978317 268 782880 1761465 1ae0b9 build/gw_retro_go.elf
itcram 648 / 65536 (64888 bytes free (0.062 MB))
dtcram 101504 / 131072 (29568 bytes free)
ram_uc 307200 / 307200 (0 bytes free (0.000 MB))
ram 65280 / 69632 (4352 bytes free (0.004 MB))
ram_emu_nes 0 / 671744 (671744 bytes free (0.641 MB))
ram_emu_gb 239096 / 671744 (432648 bytes free (0.413 MB))
ram_emu_sms 0 / 671744 (671744 bytes free (0.641 MB))
ram_emu_pce 0 / 671744 (671744 bytes free (0.641 MB))
ram_emu_gw 0 / 671744 (671744 bytes free (0.641 MB))
ahbram 5760 / 131072 (125312 bytes free (0.120 MB))
flash 87928 / 131072 (43144 bytes free (0.041 MB))
extflash 889753 / 16691200 (15801447 bytes free (15.069 MB))
saveflash 81920 / 81920 (0 bytes free (0.000 MB))
[ BIN ] gw_retro_go_intflash.bin
openocd -f scripts/interface_stlink.cfg -c "program build/gw_retro_go_intflash.bin 0x08000000 verify reset exit"
Open On-Chip Debugger 0.11.0+dev-00331-g53556fcde (2021-08-22-13:46)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
none separate

Info : clock speed 1800 kHz
Info : STLINK V2J37S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.253088
Info : stm32h7x.cpu0: hardware has 8 breakpoints, 4 watchpoints
Info : starting gdb server for stm32h7x.cpu0 on 3333
Info : Listening on port 3333 for gdb connections
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x080109b4 msp: 0x20020000
** Programming Started **
Info : Device: STM32H7Ax/7Bx
Info : flash size probed value 128
Info : STM32H7 flash has a single bank
Info : Bank (0) size is 128 kb, base address is 0x08000000
Info : Padding image section 0 at 0x0801587c with 4 bytes (bank write end alignment)
Warn : Adding extra erase range, 0x08015880 .. 0x08015fff
** Programming Finished **
** Verify Started **
** Verified OK **
** Resetting Target **
shutdown command invoked
[ BASH ] Checking for updated roms
进入 'LCD-Game-Emulator'
进入 'retro-go-stm32'
[ LD ] gw_retro_go.elf
text data bss dec hex filename
978317 268 782880 1761465 1ae0b9 build/gw_retro_go.elf
itcram 648 / 65536 (64888 bytes free (0.062 MB))
dtcram 101504 / 131072 (29568 bytes free)
ram_uc 307200 / 307200 (0 bytes free (0.000 MB))
ram 65280 / 69632 (4352 bytes free (0.004 MB))
ram_emu_nes 0 / 671744 (671744 bytes free (0.641 MB))
ram_emu_gb 239096 / 671744 (432648 bytes free (0.413 MB))
ram_emu_sms 0 / 671744 (671744 bytes free (0.641 MB))
ram_emu_pce 0 / 671744 (671744 bytes free (0.641 MB))
ram_emu_gw 0 / 671744 (671744 bytes free (0.641 MB))
ahbram 5760 / 131072 (125312 bytes free (0.120 MB))
flash 87928 / 131072 (43144 bytes free (0.041 MB))
extflash 889753 / 16691200 (15801447 bytes free (15.069 MB))
saveflash 81920 / 81920 (0 bytes free (0.000 MB))
[ BIN ] gw_retro_go_extflash.bin
scripts/flash_multi.sh build/gw_retro_go_extflash.bin 0
Preparing chunk 1 / 2 in file /tmp/flash_chunk.VJ02BU
Flashing!
Open On-Chip Debugger 0.11.0+dev-00331-g53556fcde (2021-08-22-13:46)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
none separate

Info : clock speed 1800 kHz
Info : STLINK V2J37S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.251511
Error: init mode failed (unable to connect to the target)

Flashing chunk 0 failed... power cycle unit and retry? (y/n)
y
Retry count 2/10
Open On-Chip Debugger 0.11.0+dev-00331-g53556fcde (2021-08-22-13:46)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
none separate

Info : clock speed 1800 kHz
Info : STLINK V2J37S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.254665
Info : stm32h7x.cpu0: hardware has 8 breakpoints, 4 watchpoints
Info : starting gdb server for stm32h7x.cpu0 on 3333
Info : Listening on port 3333 for gdb connections
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x080109b4 msp: 0x20020000
0x20020000
0x080109b5
msp (/32): 0x20020000

pc (/32): 0x080109b5

Starting flash app
State: FLASHAPP_INIT
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
State: UNKNOWN
^Z
[2]+ Stopped sudo make LARGE_FLASH=1 flash

[kbeckmann]

Please join the discord and ask in the #support channel where people can help you out faster. It could be because of bad soldering or wires, or that the chip itself has problems or is a clone/fake which can happen if not bought from a reputable reseller.

You can run make flash_test to verify the flash.