Release 0.2.2

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "stm32-hal2"
-version = "0.2.1"
+version = "0.2.2"
 authors = ["David O'Connor <[email protected]>"]
 description = "Hardware abstraction layer for the stm32 chips"
 keywords = ["no-std", "stm32", "embedded", "embedded-hal"]

examples/syntax_overview/src/main.rs

@@ -18,6 +18,7 @@ use embedded_hal::spi::{Phase, Polarity, Mode};
 // Import parts of this library we use. You could use this style, or perhaps import
 // less here.
 use stm32_hal2::{
+    self,
     adc::{self, Adc, AdcChannel},
     clocks::Clocks,
     dac::{Dac, Channel as DacChannel, DacBits},
@@ -41,6 +42,10 @@ fn main() -> ! {
     // Set up peripherals specific to the microcontroller you're using.
     let mut dp = pac::Peripherals::take().unwrap();
 
+    // This line is required to prevent the debugger from disconnecting on entering WFI.
+    // This appears to be a limitation of many STM32 families. Not required in production code.
+    stm32_hal2::debug_workaround(&mut dp.DBGMCU, &mut dp.RCC);
+
     // Create an initial clock configuration that uses the MCU's internal oscillator (HSI),
     // sets the MCU to its maximum system clock speed.
     let clock_cfg = Clocks::default();

src/lib.rs

@@ -330,6 +330,9 @@ pub fn debug_workaround(dbgmcu: &mut pac::DBGMCU, rcc: &mut pac::RCC) {
     dbgmcu.cr.modify(|_, w| w.dbg_stop().set_bit());
     dbgmcu.cr.modify(|_, w| w.dbg_standby().set_bit());
 
+    // todo Some MCUs may need the dbgmcu lines, but not DMA enabled.
+    // todo: Remove this part on MCUs not affected. F4 and L4 are confirmed affected.
+
     #[cfg(feature = "f3")]
     rcc.ahbenr.modify(|_, w| w.dma1en().set_bit());