diff options
Diffstat (limited to 'watch-library/hal/documentation/flash.rst')
| -rwxr-xr-x | watch-library/hal/documentation/flash.rst | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/watch-library/hal/documentation/flash.rst b/watch-library/hal/documentation/flash.rst deleted file mode 100755 index fcc86e63..00000000 --- a/watch-library/hal/documentation/flash.rst +++ /dev/null @@ -1,52 +0,0 @@ -The Flash Driver -================ - -Flash is a re-programmable memory that retains program and data -storage even with power off. - -User can write or read several bytes from any valid address in a flash. - -As to the erase/lock/unlock command, the input parameter of address should -be a bytes address aligned with the page start, otherwise, the command will fail -to be executed. At the meantime, the number of pages that can be locked or unlocked -at once depends on region size of the flash. User can get the real number -from the function return value which could be different for the different devices. - -Features --------- - -* Initialization/de-initialization -* Writing/Reading bytes -* Locking/Unlocking/Erasing pages -* Notifications about errors or being ready for a new command - -Applications ------------- - -* Mini disk which can retain program and data storage -* Boot loader -* Non volatile storage - -Dependencies ------------- - -The peripheral which controls a re-programmable flash memory. - -Concurrency ------------ - -N/A - -Limitations ------------ - -User should pay attention to set a proper stack size in their application, -since the driver manages a temporary buffer in stack to cache unchanged data -when calling flash write and erase function. -Due to flash memory architecture of SAMD21/D20/L21/L22/C20/C21/D09/D10/D11/R21, -write operation erazes row content before each write. - -Known issues and workarounds ----------------------------- - -N/A |