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mkougia
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 Posted: Tue Nov 18, 2008 9:38 pm Post subject: Connect an Intel strataflash P33 with an intel processor IXP |
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Hi, my problem is a little complicated.
I have connect on my board an Intel StrataFlash P33 to an Intel IXP465
Network Processor, in such way that the flash pins: ADV# and CLK are
grounded and the WAIT is left open (asynchronous mode connection). The
problem is that when I try to write a word in a specific address of the
flash mem, this word is written everywhere, in the flash.
This could be a hardware connection problem? Or
Timing and Control Register for flash CS0, configuration values problem?
Or
Command definitions for write access to flash, problem? OR???
I use Trace32 ICD XSCALE to access to cpu.
Best regards,
M. Kougia. |
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Dingo
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| Posted: Tue Nov 18, 2008 9:38 pm Post subject: Re: Connect an Intel strataflash P33 with an intel processor |
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On Nov 18, 10:38 am, "mkougia" <m...@intracomdefense.com> wrote:
| Quote: | Hi, my problem is a little complicated.
I have connect on my board an Intel StrataFlash P33 to an Intel IXP465
Network Processor, in such way that the flash pins: ADV# and CLK are
grounded and the WAIT is left open (asynchronous mode connection). The
problem is that when I try to write a word in a specific address of the
flash mem, this word is written everywhere, in the flash.
This could be a hardware connection problem? Or
Timing and Control Register for flash CS0, configuration values problem?
Or
Command definitions for write access to flash, problem? OR???
I use Trace32 ICD XSCALE to access to cpu.
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Do you issue read-array command after write sequence completes? |
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GaryKato@aol.com
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| Posted: Wed Nov 19, 2008 2:38 pm Post subject: Re: Connect an Intel strataflash P33 with an intel processor |
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On Nov 19, 3:49 am, "mkougia" <m...@intracomdefense.com> wrote:
| Quote: | On Nov 18, 10:38=A0am, "mkougia" <m...@intracomdefense.com> wrote:
Hi, my problem is a little complicated.
I have connect on my board an Intel StrataFlash P33 to an Intel IXP465
Network Processor, in such way that the flash pins: ADV# and CLK are
grounded and the WAIT is left open (asynchronous mode connection). The
problem is that when I try to write a word in a specific address of
the
flash mem, this word is written everywhere, in the flash.
This could be a hardware connection problem? Or
Timing and Control Register for flash CS0, configuration values
problem?
Or
Command definitions for write access to flash, problem? OR???
I use Trace32 ICD XSCALE to access to cpu.
Do you issue read-array command after write sequence completes?
Yes, I give the following commands:
data.set ASD:0xC4000000 %LONG 0X94D1024E ; EXP_TIMING_CS0
d.s 0x50000000 %w 0x0060
d.s 0x50000000 %w 0x00D0 ; unlock block
d.s 0x50000000 %w 0x0020
d.s 0x50000000 %w 0x00D0 ; block erase
d.s 0x50000000 %w 0x00FF ; set to read array state
d.l 0x50000000 ; confirm the flash is erased.
d.s 0x50000000 %w 0x0040 ;
d.s 0x50000000 %w 0x5678 ; 0x5678 is data word
d.l 0x50000000 ; read status register - returned value is 0x0080
d.s 0x50000000 %w 0x00FF ; set to read array state
d.l 0x50000000 ; read the word 0x5678 in any address into the flash???
Are the commands wrong?- Hide quoted text -
- Show quoted text -
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I assume the 0x50000000 is the base address for the flash? So d.l
0x50000002 also gives 0x5678? What if you read outside the block you
unlocked? If that reads 0x5678 instead of 0xffff then there might be
something wrong with addressing of the chip. You think you're reading
a different location but you're actually reading the same location so
you get 0x5678 all the time. |
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mkougia
Guest
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| Posted: Wed Nov 19, 2008 5:20 pm Post subject: Re: Connect an Intel strataflash P33 with an intel processor |
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| Quote: | On Nov 18, 10:38=A0am, "mkougia" <m...@intracomdefense.com> wrote:
Hi, my problem is a little complicated.
I have connect on my board an Intel StrataFlash P33 to an Intel IXP465
Network Processor, in such way that the flash pins: ADV# and CLK are
grounded and the WAIT is left open (asynchronous mode connection). The
problem is that when I try to write a word in a specific address of
the
flash mem, this word is written everywhere, in the flash.
This could be a hardware connection problem? Or
Timing and Control Register for flash CS0, configuration values
problem?
Or
Command definitions for write access to flash, problem? OR???
I use Trace32 ICD XSCALE to access to cpu.
Do you issue read-array command after write sequence completes?
|
Yes, I give the following commands:
data.set ASD:0xC4000000 %LONG 0X94D1024E ; EXP_TIMING_CS0
d.s 0x50000000 %w 0x0060
d.s 0x50000000 %w 0x00D0 ; unlock block
d.s 0x50000000 %w 0x0020
d.s 0x50000000 %w 0x00D0 ; block erase
d.s 0x50000000 %w 0x00FF ; set to read array state
d.l 0x50000000 ; confirm the flash is erased.
d.s 0x50000000 %w 0x0040 ;
d.s 0x50000000 %w 0x5678 ; 0x5678 is data word
d.l 0x50000000 ; read status register - returned value is 0x0080
d.s 0x50000000 %w 0x00FF ; set to read array state
d.l 0x50000000 ; read the word 0x5678 in any address into the flash???
Are the commands wrong? |
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mkougia
Guest
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| Posted: Wed Nov 19, 2008 5:49 pm Post subject: Re: Connect an Intel strataflash P33 with an intel processor |
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| Quote: | On Nov 18, 10:38=A0am, "mkougia" <m...@intracomdefense.com> wrote:
Hi, my problem is a little complicated.
I have connect on my board an Intel StrataFlash P33 to an Intel IXP465
Network Processor, in such way that the flash pins: ADV# and CLK are
grounded and the WAIT is left open (asynchronous mode connection). The
problem is that when I try to write a word in a specific address of
the
flash mem, this word is written everywhere, in the flash.
This could be a hardware connection problem? Or
Timing and Control Register for flash CS0, configuration values
problem?
Or
Command definitions for write access to flash, problem? OR???
I use Trace32 ICD XSCALE to access to cpu.
Do you issue read-array command after write sequence completes?
|
Yes, I give the following commands:
data.set ASD:0xC4000000 %LONG 0X94D1024E ; EXP_TIMING_CS0
d.s 0x50000000 %w 0x0060
d.s 0x50000000 %w 0x00D0 ; unlock block
d.s 0x50000000 %w 0x0020
d.s 0x50000000 %w 0x00D0 ; block erase
d.s 0x50000000 %w 0x00FF ; set to read array state
d.l 0x50000000 ; confirm the flash is erased.
d.s 0x50000000 %w 0x0040 ;
d.s 0x50000000 %w 0x5678 ; 0x5678 is data word
d.l 0x50000000 ; read status register - returned value is 0x0080
d.s 0x50000000 %w 0x00FF ; set to read array state
d.l 0x50000000 ; read the word 0x5678 in any address into the flash???
Are the commands wrong? |
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Dingo
Guest
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| Posted: Wed Nov 19, 2008 8:55 pm Post subject: Re: Connect an Intel strataflash P33 with an intel processor |
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On Nov 18, 10:38 am, "mkougia" <m...@intracomdefense.com> wrote:
| Quote: | I have connect on my board an Intel StrataFlash P33 to an Intel IXP465
Network Processor, in such way that the flash pins: ADV# and CLK are
grounded and the WAIT is left open (asynchronous mode connection). The
problem is that when I try to write a word in a specific address of the
flash mem, this word is written everywhere, in the flash.
This could be a hardware connection problem? Or
Timing and Control Register for flash CS0, configuration values problem?
Or
Command definitions for write access to flash, problem? OR???
I use Trace32 ICD XSCALE to access to cpu.
|
I don't have a P33 datasheet, but the one for the P30 says:
"If only asynchronous reads are to be performed, CLK should be tied to
a
valid VIH level, WAIT signal can be floated and ADV# must be tied to
ground."
Maybe the grounded CLK is the problem? |
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