Anonymous
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Oct 29, 2009
11:21 AM
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Oct 29, 2009
11:21 AM
I'd like to know if the boot table is stored in its own FLASH, or if it's stored in program memory. If its stored in program memory, what is the upper limit to it's size?
3 Replies
Oct 29, 2009
07:11 PM
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Oct 29, 2009
07:11 PM
Do you mean the startup code executed on reset, to configure the device as per the device configuration? Can you please elaborate?
Anonymous
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Nov 05, 2009
02:09 PM
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Nov 05, 2009
02:09 PM
the device has a boatload of registers that get loaded when the device boots to make it act like the device you captured in PSoC creator. Some configure UDBs, some configure analog blocks, some configure the DSI, and there are others. Those registers are loaded via DMA at bootup. I'd like to know what non-volatile memory that information is stored in. If its the same FLASH where program memory is stored, I'd like to know what the upper limit on the configuration register boot table is. Does that help clarify?
Nov 05, 2009
03:35 PM
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Nov 05, 2009
03:35 PM
By default the configuration data is located in regular CPU-addressable flash. I do not have a ceiling number of bytes but it is usually a small number of kB. However, you can use the ECC memory instead of flash. In the CYDWR file, System tab, check the Store configuration data in ECC memory box. Then you get to keep all the flash for your application. I've never heard of a design that cannot fit all configuration data in ECC memory.