projects
/
fw
/
altos
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
altos/micropeak-v2: Erase log space at end of BOOST_DELAY
[fw/altos]
/
src
/
stmf0
/
ao_storage_stm.c
diff --git
a/src/stmf0/ao_storage_stm.c
b/src/stmf0/ao_storage_stm.c
index 17c934a53e5b4a06f3ec9b45c523a55c5bf5191c..c6f1defe8e67b3f8efe97a3424804e9eac470126 100644
(file)
--- a/
src/stmf0/ao_storage_stm.c
+++ b/
src/stmf0/ao_storage_stm.c
@@
-127,9
+127,24
@@
_ao_flash_write(uint32_t pos, void *sv, uint16_t len)
stm_flash.cr &= ~(1 << STM_FLASH_CR_PG);
}
stm_flash.cr &= ~(1 << STM_FLASH_CR_PG);
}
+static bool
+ao_storage_is_erased(uint32_t pos)
+{
+ uint16_t *flash = _ao_flash_addr(pos);
+ uint32_t i = ao_storage_block >> 1;
+
+ while (i--)
+ if (*flash++ != 0xffff)
+ return false;
+ return true;
+}
+
uint8_t
ao_storage_erase(uint32_t pos)
{
uint8_t
ao_storage_erase(uint32_t pos)
{
+ if (ao_storage_is_erased(pos))
+ return 1;
+
ao_arch_block_interrupts();
ao_flash_unlock();
ao_arch_block_interrupts();
ao_flash_unlock();