by wolffie454 » Mon Mar 07, 2011 4:48 pm
merkin wrote:Sorry, I thought you understood what I have been saying this entire time. No wonder why you have trouble...
Flash memory IS the NVRAM (NVRAM IS NON-VOLATILE hence the "NV")
SRAM is volatile (Loses all its data once power is gone)
And according to the datasheet of the SRAM on the DSR's...well here is the quote,
"The families also support low data retention voltage for BATTEERY back-up operation..."
I think we are saying the same thing, just different ways.
"I have noticed the stock tiles in flash memory, so this is not where that data (sat tiles/factory analog only CDT's, etc.) is actually stored?
Maybe I am way off base here, but isn't what we are calling NVRAM actually SRAM because that data is lost with a Master Reset, and the non-volatile is the flash RAM? Also the 922 has RAM, which I have seen is only temporary storage (so aptly named) with name of current program on the VC and next program, etc etc."
Static RAM is lost with loss of power/reset. NVRAM is not. However, some SRAM must be battery backed as boss said, otherwise current maps would be lost everytime you unplugged the unit. Only thing I noticed back when unit was subbed is that sometimes it would require a rehit and trip counter would go back to 0. NVRAM (aka FLASH) stores only the stock tiles and analog descriptors, correct?
Sorry, I am sometimes a glutton for punishment because I WILL ASK QUESTIONS when not fully understanding such as these locations.
Another thing what is labeled "FLASH" can be easily uploaded from the IRD, it includes the F/W which is for mine v. EC. Now when FLASH is uploaded, you won't get "RAM" or "NVRAM" until you issue the "init" command, which I assume from reading that box is then in read chip select mode, and is until it is reset or power cycled.
Maybe boss will write another version of USBBDM NT with tabs named after the DSR922's hardware and locations. I don't care as long as memory can be accessed and backed up.
Boss, if you anything from me, I have several backups of flash, NVRAM, and RAM areas from different dates, including when I had box authorization.
Now, back to working on the refrigerator, defrost heatstrip went out, PITA!!
[quote="merkin"]Sorry, I thought you understood what I have been saying this entire time. No wonder why you have trouble...
Flash memory IS the NVRAM (NVRAM IS NON-VOLATILE hence the "NV")
SRAM is volatile (Loses all its data once power is gone)
And according to the datasheet of the SRAM on the DSR's...well here is the quote,
"The families also support low data retention voltage for BATTEERY back-up operation..."
[/quote]
I think we are saying the same thing, just different ways.
"I have noticed the stock tiles in flash memory, so this is not where that data (sat tiles/factory analog only CDT's, etc.) is actually stored?
Maybe I am way off base here, but isn't what we are calling NVRAM actually SRAM because that data is lost with a Master Reset, and the non-volatile is the flash RAM? Also the 922 has RAM, which I have seen is only temporary storage (so aptly named) with name of current program on the VC and next program, etc etc."
Static RAM is lost with loss of power/reset. NVRAM is not. However, some SRAM must be battery backed as boss said, otherwise current maps would be lost everytime you unplugged the unit. Only thing I noticed back when unit was subbed is that sometimes it would require a rehit and trip counter would go back to 0. NVRAM (aka FLASH) stores only the stock tiles and analog descriptors, correct?
Sorry, I am sometimes a glutton for punishment because I WILL ASK QUESTIONS when not fully understanding such as these locations.
Another thing what is labeled "FLASH" can be easily uploaded from the IRD, it includes the F/W which is for mine v. EC. Now when FLASH is uploaded, you won't get "RAM" or "NVRAM" until you issue the "init" command, which I assume from reading that box is then in read chip select mode, and is until it is reset or power cycled.
Maybe boss will write another version of USBBDM NT with tabs named after the DSR922's hardware and locations. I don't care as long as memory can be accessed and backed up.
Boss, if you anything from me, I have several backups of flash, NVRAM, and RAM areas from different dates, including when I had box authorization.
Now, back to working on the refrigerator, defrost heatstrip went out, PITA!!