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Discussion Groups | MSP430 | Re Flash Memory Storage
The purpose of this group is to foster exchange of information on the Texas Instruments MSP430 family of microcontrollers and related tools. Everyone welcome, all levels of familiarity/expertise.
Re Flash Memory Storage - jakkula - Oct 7 19:31:52 2009
Hi,
I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
any suggestions please.
Thanks,
Praveena.
------------------------------------
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I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
any suggestions please.
Thanks,
Praveena.
------------------------------------
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: Re Flash Memory Storage - Bart Oegema - Oct 7 19:38:14 2009
Have you looked at the timing diagrams in the chapter on the Flash
Memory Controller in the MSP430x1xx Family User Guide? (slau049)
- Bart
On Wed, Oct 7, 2009 at 4:31 PM, jakkula wrote:
>
> Hi,
> I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
>
> any suggestions please.
>
> Thanks,
> Praveena.
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Memory Controller in the MSP430x1xx Family User Guide? (slau049)
- Bart
On Wed, Oct 7, 2009 at 4:31 PM, jakkula
>
> Hi,
> I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
>
> any suggestions please.
>
> Thanks,
> Praveena.
------------------------------------
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Re: Re Flash Memory Storage - jakkula praveena - Oct 7 19:51:35 2009
thanks for ur reply bart
yes I did look at it , I am using CCE & I need to write a code to demostrat=
e the storage time fo the flash memory.
thanks
________________________________
From: Bart Oegema
To: m...@yahoogroups.com
Sent: Wed, October 7, 2009 4:37:58 PM
Subject: Re: [msp430] Re Flash Memory Storage
=A0=20
Have you looked at the timing diagrams in the chapter on the Flash
Memory Controller in the MSP430x1xx Family User Guide? (slau049)
- Bart
On Wed, Oct 7, 2009 at 4:31 PM, jakkula wrote:
>
> Hi,
> I am working on MSP430F169 & I am able to store values into flash memory =
but I am not able to calculate the time required for the storage in the fla=
sh memory .
>
> any suggestions please.
>
> Thanks,
> Praveena.
>
>=20
=20=20=20=20=20=20
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
yes I did look at it , I am using CCE & I need to write a code to demostrat=
e the storage time fo the flash memory.
thanks
________________________________
From: Bart Oegema
To: m...@yahoogroups.com
Sent: Wed, October 7, 2009 4:37:58 PM
Subject: Re: [msp430] Re Flash Memory Storage
=A0=20
Have you looked at the timing diagrams in the chapter on the Flash
Memory Controller in the MSP430x1xx Family User Guide? (slau049)
- Bart
On Wed, Oct 7, 2009 at 4:31 PM, jakkula
>
> Hi,
> I am working on MSP430F169 & I am able to store values into flash memory =
but I am not able to calculate the time required for the storage in the fla=
sh memory .
>
> any suggestions please.
>
> Thanks,
> Praveena.
>
>=20
=20=20=20=20=20=20
[Non-text portions of this message have been removed]
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
Re: Re Flash Memory Storage - Bart Oegema - Oct 7 20:04:40 2009
How are you programming the flash memory - from within flash, or from RAM?
Why do you need to demonstrate the storage time rather than calculate it?
- Bart
On Wed, Oct 7, 2009 at 4:51 PM, jakkula praveena
wrote:
>
> thanks for ur reply bart
> yes I did look at it , I am using CCE & I need to write a code to demostrate the storage time fo the flash memory.
> thanks
>
> ________________________________
> From: Bart Oegema
> To: m...@yahoogroups.com
> Sent: Wed, October 7, 2009 4:37:58 PM
> Subject: Re: [msp430] Re Flash Memory Storage
> Have you looked at the timing diagrams in the chapter on the Flash
> Memory Controller in the MSP430x1xx Family User Guide? (slau049)
>
> - Bart
>
> On Wed, Oct 7, 2009 at 4:31 PM, jakkula wrote:
> >
> >
> >
> > Hi,
> > I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
> >
> > any suggestions please.
> >
> > Thanks,
> > Praveena.
> >
> > [Non-text portions of this message have been removed]
------------------------------------
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Why do you need to demonstrate the storage time rather than calculate it?
- Bart
On Wed, Oct 7, 2009 at 4:51 PM, jakkula praveena
>
> thanks for ur reply bart
> yes I did look at it , I am using CCE & I need to write a code to demostrate the storage time fo the flash memory.
> thanks
>
> ________________________________
> From: Bart Oegema
> To: m...@yahoogroups.com
> Sent: Wed, October 7, 2009 4:37:58 PM
> Subject: Re: [msp430] Re Flash Memory Storage
> Have you looked at the timing diagrams in the chapter on the Flash
> Memory Controller in the MSP430x1xx Family User Guide? (slau049)
>
> - Bart
>
> On Wed, Oct 7, 2009 at 4:31 PM, jakkula
> >
> >
> >
> > Hi,
> > I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
> >
> > any suggestions please.
> >
> > Thanks,
> > Praveena.
> >
> > [Non-text portions of this message have been removed]
------------------------------------
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Re: Re Flash Memory Storage - Michael - Oct 7 20:23:44 2009
Hi Praveena,
> I am working on MSP430F169 & I am able to store values into flash
> memory but I am not able to calculate the time required for the
> storage in the flash memory .
>
> any suggestions please.
You mean Empirically?
1) Use a timer. Reset it before writing and check the count and overflow flag after the write. adjust timer frequency input untill there is no overflow flag.
or 2) Change the status of a pin before and after the write. Capture and Measure with a digital osciloscope.
or 3) Make a loop and write the same data to the same address(es) over and over again (so you don't degrade your flash memory). toggle the status of an output pin on each loop. Measure frequency with an analog or digital osciloscope, or with a frequency counter.
You can compare your results with the data given in page 5-8 of SLU049.pdf and page 48 "electrical characteristics over recommended operating free-air temperature" -> "Flash Memory" of the MSP430F169.pdf datasheet.
Regards,
Michael K.
--- In m...@yahoogroups.com, "jakkula" wrote:
>
> Hi,
> I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
>
> any suggestions please.
>
> Thanks,
> Praveena.
>
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
> I am working on MSP430F169 & I am able to store values into flash
> memory but I am not able to calculate the time required for the
> storage in the flash memory .
>
> any suggestions please.
You mean Empirically?
1) Use a timer. Reset it before writing and check the count and overflow flag after the write. adjust timer frequency input untill there is no overflow flag.
or 2) Change the status of a pin before and after the write. Capture and Measure with a digital osciloscope.
or 3) Make a loop and write the same data to the same address(es) over and over again (so you don't degrade your flash memory). toggle the status of an output pin on each loop. Measure frequency with an analog or digital osciloscope, or with a frequency counter.
You can compare your results with the data given in page 5-8 of SLU049.pdf and page 48 "electrical characteristics over recommended operating free-air temperature" -> "Flash Memory" of the MSP430F169.pdf datasheet.
Regards,
Michael K.
--- In m...@yahoogroups.com, "jakkula"
>
> Hi,
> I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
>
> any suggestions please.
>
> Thanks,
> Praveena.
>
------------------------------------
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Re: Re Flash Memory Storage - old_cow_yellow - Oct 7 22:02:46 2009
The Flash controller uses something similar to a timer to erase/write. The amount of time
it takes depends on the setting. You can make it very long (which may shoten the life of
the Flash) or very short (which may not erase/write the Flash correctl). So what are you
demostrating?
You can also demostrate how long does it take for a timer to timeout by using another timer to time the timer in question.
--- In m...@yahoogroups.com, "Michael" wrote:
>
> Hi Praveena,
>
> > I am working on MSP430F169 & I am able to store values into flash
> > memory but I am not able to calculate the time required for the
> > storage in the flash memory .
> >
> > any suggestions please.
>
> You mean Empirically?
>
> 1) Use a timer. Reset it before writing and check the count and overflow flag after the write. adjust timer frequency input untill there is no overflow flag.
>
> or 2) Change the status of a pin before and after the write. Capture and Measure with a digital osciloscope.
>
> or 3) Make a loop and write the same data to the same address(es) over and over again (so you don't degrade your flash memory). toggle the status of an output pin on each loop. Measure frequency with an analog or digital osciloscope, or with a frequency counter.
>
> You can compare your results with the data given in page 5-8 of SLU049.pdf and page 48 "electrical characteristics over recommended operating free-air temperature" -> "Flash Memory" of the MSP430F169.pdf datasheet.
>
> Regards,
> Michael K.
>
> --- In m...@yahoogroups.com, "jakkula" wrote:
> >
> > Hi,
> > I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
> >
> > any suggestions please.
> >
> > Thanks,
> > Praveena.
>
------------------------------------
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You can also demostrate how long does it take for a timer to timeout by using another timer to time the timer in question.
--- In m...@yahoogroups.com, "Michael"
>
> Hi Praveena,
>
> > I am working on MSP430F169 & I am able to store values into flash
> > memory but I am not able to calculate the time required for the
> > storage in the flash memory .
> >
> > any suggestions please.
>
> You mean Empirically?
>
> 1) Use a timer. Reset it before writing and check the count and overflow flag after the write. adjust timer frequency input untill there is no overflow flag.
>
> or 2) Change the status of a pin before and after the write. Capture and Measure with a digital osciloscope.
>
> or 3) Make a loop and write the same data to the same address(es) over and over again (so you don't degrade your flash memory). toggle the status of an output pin on each loop. Measure frequency with an analog or digital osciloscope, or with a frequency counter.
>
> You can compare your results with the data given in page 5-8 of SLU049.pdf and page 48 "electrical characteristics over recommended operating free-air temperature" -> "Flash Memory" of the MSP430F169.pdf datasheet.
>
> Regards,
> Michael K.
>
> --- In m...@yahoogroups.com, "jakkula"
> >
> > Hi,
> > I am working on MSP430F169 & I am able to store values into flash memory but I am not able to calculate the time required for the storage in the flash memory .
> >
> > any suggestions please.
> >
> > Thanks,
> > Praveena.
>
------------------------------------
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