The Problem:
When flashing the first 4 blocks of the Flash memory, the boot sector, I get a ORing activity like flashing any one of the first 4 blocks, the software erases all 4 blocks before writing the desired block.
Example, when flash programming the blocks sequentially, flashing the 2nd block erases the 1st or flashing the 3rd block, erases 1,2, & 4.
Background:
Using BFin-JTag program, I can flash multiple data blocks of the M29W160ET flash memory attached to a ADSP-BF536 without erasing the other blocks with the gnICE+ JTAG programmer.
Using detectflash, I see 4 regions. the first 3 regions are the boot sector according to the Flash Memory Specification sheet.
The 4th region contains 31 64K data blocks, all separately programmable.
The regions shown by the detectflash tell me it is a EB type memory but the label on the memory chip is ET,(concerned but excepting).
I basically followed this analog devices gnICE+ programming webpage.
hw:jtag:gnice [Analog Devices Open Source| Mixed-signal and Digital Signal Processing ICs]
There is a command called "Erase Suspend" in the memory chip document but I have not been able to implement it using the Blackfin LDR-Utils of the GNU Toolchain.
There must be a way to flash the memory blocks without erasing the other memory blocks.
I tried locking the flashed blocks but the flashmem command unlocks them and erases the other blocks anyway.
I know it can be done because the CrossCore and VisualDSP+ IDEs can program the entire flash memory.
I modified the Flashmemory example to use on the BF536 vs the BF537 and M29W160ET vs M29W320ET.
I can then use the IDE to flash the entire memory including the boot sectors.
I:\Work\Data>bfin-jtag
UrJTAG 0.10 #
Copyright (C) 2002, 2003 ETC s.r.o.
Copyright (C) 2007, 2008, 2009 Kolja Waschk and the respective authors
UrJTAG is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
There is absolutely no warranty for UrJTAG.
warning: UrJTAG may damage your hardware!
Type "quit" to exit, "help" for help.
jtag> cable gnICE+
Connected to libftdi driver.
jtag> detect
IR length: 5
Chain length: 1
Device Id: 00110010011111001000000011001011 (0x327C80CB)
Manufacturer: Analog Devices, Inc. (0x0CB)
Part(0): BF537 (0x27C8)
Stepping: 3
Filename: c:\program files (x86)\analog devices\gnu toolchain\2014r1\elf\b
in\../share/urjtag/analog/bf537/bf537
jtag> initbus BF53x
jtag> detectflash 0x20000000
Query identification string:
Primary Algorithm Command Set and Control Interface ID Code: 0x0002 (AMD/Fujitsu Standard Command Set)
Alternate Algorithm Command Set and Control Interface ID Code: 0x0000 (null)
Query system interface information:
Vcc Logic Supply Minimum Write/Erase or Write voltage: 2700 mV
Vcc Logic Supply Maximum Write/Erase or Write voltage: 3600 mV
Vpp [Programming] Supply Minimum Write/Erase voltage: 0 mV
Vpp [Programming] Supply Maximum Write/Erase voltage: 0 mV
Typical timeout per single byte/word program: 16 us
Typical timeout for maximum-size multi-byte program: 0 us
Typical timeout per individual block erase: 1024 ms
Typical timeout for full chip erase: 0 ms
Maximum timeout for byte/word program: 256 us
Maximum timeout for multi-byte program: 0 us
Maximum timeout per individual block erase: 8192 ms
Maximum timeout for chip erase: 0 ms
Device geometry definition:
Device Size: 2097152 B (2048 KiB, 2 MiB)
Flash Device Interface Code description: 0x0002 (x8/x16)
Maximum number of bytes in multi-byte program: 1
Number of Erase Block Regions within device: 4
Erase Block Region Information:
Region 0:
Erase Block Size: 16384 B (16 KiB)
Number of Erase Blocks: 1
Region 1:
Erase Block Size: 8192 B (8 KiB)
Number of Erase Blocks: 2
Region 2:
Erase Block Size: 32768 B (32 KiB)
Number of Erase Blocks: 1
Region 3:
Erase Block Size: 65536 B (64 KiB)
Number of Erase Blocks: 31
Primary Vendor-Specific Extended Query:
Major version number: 1
Minor version number: 0
Address Sensitive Unlock: Required
Erase Suspend: Read/write
Sector Protect: 1 sectors per group
Sector Temporary Unprotect: Not supported
Sector Protect/Unprotect Scheme: 29BDS640 mode (Software Command Locking)
Simultaneous Operation: Not supported
Burst Mode Type: Supported
Page Mode Type: Not supported
jtag>help
Command list:
frequency setup JTAG frequency
cable select JTAG cable
reset reset JTAG chain
discovery discovery of unknown parts in the JTAG chain
idcode Read IDCODEs of all parts in a JTAG chain
detect detect parts on the JTAG chain
detectflash detect parameters of flash chips attached to a part
help display this help
quit exit and terminate this session
scan read BSR and show changes since last scan
signal define new signal for a part
salias define an alias for a signal
bit define new BSR bit
register define new data register for a part
initbus initialize bus driver for active part
print display JTAG chain list/status
part change active part for current JTAG chain
bus change active bus
instruction change active instruction for a part or declare new instruction
shift shift data/instruction registers through JTAG chain
dr display active data register for a part
get get external signal value
test test external signal value
debug set logging/debugging level
shell run a shell command
set set external signal value
endian set/print endianness
peek read a single word
poke write a single word
pod Set or read state of POD signal(s)
readmem read content of the memory and write it to file
writemem write content of file to the memory
flashmem burn flash memory with data from a file
eraseflash erase flash memory by number of blocks
lockflash lock flash memory by number of blocks
unlockflash unlock flash memory by number of blocks
include include command sequence from external repository
script run command sequence from external file
addpart manually adds parts on the JTAG chain
usleep Sleep some number of microseconds
bfin Blackfin specific commands
pld configure a Programmable Logic Device from file
sdu SDU specific commands
svf execute svf commands from file
bsdl manage BSDL files
Type "help COMMAND" for details about a particular command.
jtag>
