# This is a failure-log from trying to read a single page from NAND Flash through JTAG in SAFE-Mode
# mdw reads a DWORD, mww writes a DWORD

# First try:
mdw: 0x2038000c: ffff0000 
-> mww 0x203C0000 0x07       # Flash-Command: 7=ReadPage, 6=WritePage, 0x10=WriteByteValue, 0x11=ReadByteValue
-> mww 0x203C0004 0x11       # ?
-> mww 0x203C0008 0x89       # ?
-> mww 0x203C0054 0x7        # Phyiscal Block And Page Number
-> mww 0x203C0058 0xFFFF     # Bitmask for which blocks should be read/written
-> mww 0x203C005C 0x85833000 # RAM Memory address 
-> mww 0x85833000 0x7964     # Indicator which gets overwritten to signal whether the page has been read
-> mww 0x20380000 0x30       # CmdBuf
-> mww 0x20380004 0x0701     # Zone + Command + unknown bit
mdw: 0x2038000c: ffff0000    # FLASH is ready
mdw: 0x2038012C: 00000000    # Special Status: OK
-> mww 0x20380014 1          # Start transaction
mdw: 0x2038000c: fffe0001    # FLASH is running 1 command and has an interrupt to be acknowledged
mdw: 0x2038012C: 20000000    # Special Status: ERROR
mdw: 0x20380014: 00000000    
mdw: 0x2038000c: fffe0001 
mdw: 0x2038000c: fffe0001 
-> mww 0x2038000C 0xFFFE0001 # Acknowledging Interrupt
mdw: 0x2038000c: ffff0000    # FLASH is ready again
mdw: 0x20380000: 00000030    
-> mww 0x20380000 0x130      # Trying to acknowledge the transaction
# The page was loaded correctly, and the status register 0xffff0000 also seems as if everything is fine:

# Second try:
mdw: 0x2038000c: ffff0000 
-> mww 0x203C0000 0x07
-> mww 0x203C0004 0x11
-> mww 0x203C0008 0x89
-> mww 0x203C0054 0x7
-> mww 0x203C0058 0xFFFF
-> mww 0x203C005C 0x85833000
-> mww 0x85833000 0x7964
-> mww 0x20380000 48
-> mww 0x20380004 0x0701
mdw: 0x2038000c: ffff0000   # Until here still everything looks good
mdw: 0x2038012C: 20000000    # Special Status: ERROR
-> mww 0x20380014 1
mdw: 0x2038000c: fffe0000   # But here the interrupt bit is missing, therefore the interrupt cannot be cleared
mdw: 0x2038012C: 20000000    # Special Status: ERROR
mdw: 0x20380014: 00000000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
mdw: 0x2038000c: fffe0000 
# And the second try never results in data being read, the READ-FAILURE indicator is still there