diff options
| author | Karl Palsson <karlp@tweak.net.au> | 2021-09-15 00:57:59 +0200 |
|---|---|---|
| committer | Vegard Storheil Eriksen <zyp@jvnv.net> | 2021-09-16 20:29:55 +0200 |
| commit | 8916162e6847e5e0e5456cd68ea0baff7dd68a28 (patch) | |
| tree | f08ccda624c2296b742206e544895a5fb003915f /rcc/flash.cpp | |
| parent | d5beba45db3f11a91bb10f6f7a76d218e83fc03d (diff) | |
flash: stm32wb: oldstyle: add register map and basic init
Flash hasn't yet been ported to new style.
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
Diffstat (limited to 'rcc/flash.cpp')
| -rw-r--r-- | rcc/flash.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/rcc/flash.cpp b/rcc/flash.cpp index 0f46cf0..e17b6a1 100644 --- a/rcc/flash.cpp +++ b/rcc/flash.cpp @@ -1,5 +1,8 @@ #include "flash.h" +/** + * Configure the flash for maximum speed access. + */ void flash_init() { #if defined(STM32F1) || defined(STM32F3) @@ -18,5 +21,9 @@ void flash_init() { // SET flash latency. FLASH.ACR = 1 << 0; + #elif defined(STM32WB) + // Prefetch and both caches, plus 3WS for 64MHz + FLASH.ACR = 0x700 | 3; + #endif } |