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Diffstat (limited to 'src/peripheral/dcb.rs')
-rw-r--r-- | src/peripheral/dcb.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/peripheral/dcb.rs b/src/peripheral/dcb.rs index 5689cb4..056150b 100644 --- a/src/peripheral/dcb.rs +++ b/src/peripheral/dcb.rs @@ -25,6 +25,10 @@ impl DCB { /// `peripheral::DWT` cycle counter to work properly. /// As by STM documentation, this flag is not reset on /// soft-reset, only on power reset. + /// + /// Note: vendor-specific registers may have to be set to completely + /// enable tracing. For example, on the STM32F401RE, `TRACE_MODE` + /// and `TRACE_IOEN` must be configured in `DBGMCU_CR` register. #[inline] pub fn enable_trace(&mut self) { // set bit 24 / TRCENA |