Merge pull request #3104 from birdistheword96/main

Fix: Ensure I2C bus is free before master-write operation
2024-07-01 23:18:55 +00:00 · 2024-07-01 23:18:55 +00:00 · 976e9f7fba
commit 976e9f7fba
parent 00babd2ec4 18ba56534b
1 changed files with 5 additions and 0 deletions
--- a/embassy-stm32/src/i2c/v2.rs
+++ b/embassy-stm32/src/i2c/v2.rs
@ -109,6 +109,11 @@ impl<'d, M: Mode> I2c<'d, M> {
            timeout.check()?;
        }

+        // Wait for the bus to be free
+        while info.regs.isr().read().busy() {
+            timeout.check()?;
+        }
+
        let reload = if reload {
            i2c::vals::Reload::NOTCOMPLETED
        } else {