diff options
| -rw-r--r-- | libmaple/include/libmaple/rcc.h | 1 | ||||
| -rw-r--r-- | libmaple/rcc.c | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/libmaple/include/libmaple/rcc.h b/libmaple/include/libmaple/rcc.h index 2c8776b..9042391 100644 --- a/libmaple/include/libmaple/rcc.h +++ b/libmaple/include/libmaple/rcc.h @@ -106,6 +106,7 @@ void rcc_configure_pll(rcc_pll_cfg *pll_cfg); void rcc_turn_on_clk(rcc_clk clock); void rcc_turn_off_clk(rcc_clk clock); +int rcc_is_clk_on(rcc_clk clock); int rcc_is_clk_ready(rcc_clk clock); /* Peripheral clock lines and clock domains. */ diff --git a/libmaple/rcc.c b/libmaple/rcc.c index d42bbf1..91ce8e7 100644 --- a/libmaple/rcc.c +++ b/libmaple/rcc.c @@ -143,6 +143,15 @@ void rcc_turn_off_clk(rcc_clk clock) { } /** + * @brief Check if a clock is on. + * @param clock Clock to check. + * @return 1 if the clock is on, 0 if the clock is off. + */ +int rcc_is_clk_on(rcc_clk clock) { + return !!(*rcc_clk_reg(clock) & rcc_clk_on_mask(clock)); +} + +/** * @brief Check if a clock source is ready. * * In general, it is not safe to rely on a clock source unless this |