K24FN1M0 Fails Flashing

odd_bikes — Thu, 28 Apr 2022 16:25:06 GMT

Hi,

We've built a secondary board using this MCU (MK24FN1M0VDC12) and we're seeing weird errors when trying to flash this new board. We've tried both the LPC Link2 and a JLink Edu that we had around.

failed read ProgramPage message readyness - rc Em(12). Target rejected debug access at location 0x20002770

NXP: MK24FN1M0xxx12
DAP stride is 4096 bytes (1024 words)
Inspected v.2 On chip Kinetis Flash memory module FTFE_4K.cfx
Image 'Kinetis SemiGeneric May 22 2019 12:27:52'
Opening flash driver FTFE_4K.cfx
Sending VECTRESET to run flash driver
Flash variant 'K 22 FTFE Generic 4K' detected (1MB = 256*4K at 0x0)
Closing flash driver FTFE_4K.cfx
( 65) Chip Setup Complete
Connected: was_reset=true. was_stopped=true
( 70) License Check Complete
Loading 'Test.elf' ELF 0x00000000 len 0x3E49A
Opening flash driver FTFE_4K.cfx (already resident)
Sending VECTRESET to run flash driver
Flash variant 'K 22 FTFE Generic 4K' detected (1MB = 256*4K at 0x0)
Writing 255132 bytes to address 0x00000000 in Flash
1 of 1 ( 0) Writing pages 0-62 at 0x00000000 with 255132 bytes
( 0) at 00000000: 0 bytes - 0/255132
failed read ProgramPage message readyness - rc Em(12). Target rejected debug access at location 0x20002770
Closing flash driver FTFE_4K.cfx
state - running or following reset request - re-read of state failed - rc Nn(05). Wire ACK Fault in DAP access
failed to send op Terminate message - rc Em(12). Target rejected debug access at location 0x20002760
(100) Writing Flash ended with an error.
File 'Test.elf' load failure: Em(12). Target rejected debug access at location 0x20002760
Loading 'Test.elf' ELF 0x0003E49C len 0x21EAC
Writing 138924 bytes to address 0x0003E49C in Flash
1 of 1 ( 0) Writing pages 62-96 at 0x0003E49C with 138924 bytes
( 0) at 0003E000: 0 bytes - 0/140104
Flash part-sector read at 0003E000[0x49C] failed - rc Em(12). Target rejected debug access at location 0x0003E000
Closing flash driver FTFE_4K.cfx

We believe it to be a problem with the board, but this is quite an odd behaviour. To sum it up:

Flashing this board with our standard ELF file doesn't work
Flashing another board design (but which uses the same MCU) with the same ELF works perfectly
Flashing this board with a simple "Hello world" app works fine.

Re: K24FN1M0 Fails Flashing

vicentegomez — Tue, 03 May 2022 18:28:13 GMT

Can you check that there are not any solder problem with the board?

can you please check the SWD signals?

topic K24FN1M0 Fails Flashing in Kinetis Microcontrollers

K24FN1M0 Fails Flashing

Re: K24FN1M0 Fails Flashing