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stm32: f247: flash: use common code.

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This shows what is _actually_ different for f7.  A couple of option
bits, and a renaming of bit 7 of the status register, from Program
Sequence Error to Erase Sequence Error.

We keep the separate implementation of wait_for_last_operation, to meet
the "suggestions" of the reference manual to insert a DSB instruction.

Keeping the renamed bit/functions also requires us to keep separate
implementations of the flag clearing functions
This commit is contained in:
Karl Palsson
2018-07-24 22:30:07 +00:00
parent 46d4103c1d
commit 231f21296f
9 changed files with 84 additions and 387 deletions
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25
lib/stm32/f2/flash.c
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@@ -54,5 +54,30 @@ void flash_wait_for_last_operation(void)
while ((FLASH_SR & FLASH_SR_BSY) == FLASH_SR_BSY);
}
/*---------------------------------------------------------------------------*/
/** @brief Clear the Programming Sequence Error Flag
This flag is set when incorrect programming configuration has been made.
*/
void flash_clear_pgserr_flag(void)
{
FLASH_SR |= FLASH_SR_PGSERR;
}
/*---------------------------------------------------------------------------*/
/** @brief Clear All Status Flags
Program error, end of operation, write protect error, busy.
*/
void flash_clear_status_flags(void)
{
flash_clear_pgserr_flag();
flash_clear_pgaerr_flag();
flash_clear_wrperr_flag();
flash_clear_pgperr_flag();
flash_clear_eop_flag();
}
/**@}*/