bare6_3

examples/rtic_bare6.rs

@@ -18,7 +18,7 @@ use stm32f4xx_hal::{
     stm32::{self, GPIOC, RCC},
 };
 
-const OFFSET: u32 = 8_000_000;
+const OFFSET: u32 = 24_000_000;
 
 #[rtic::app(device = stm32f4xx_hal::stm32, monotonic = rtic::cyccnt::CYCCNT, peripherals = true)]
 const APP: () = {
@@ -55,14 +55,14 @@ const APP: () = {
 
         let rcc = device.RCC.constrain();
 
-        let _clocks = rcc.cfgr.freeze();
+        // let _clocks = rcc.cfgr.freeze();
 
         // Set up the system clock. 48 MHz?
-        // let _clocks = rcc
-        //     .cfgr
-        //     .sysclk(48.mhz())
-        //     .pclk1(24.mhz())
-        //     .freeze();
+        let _clocks = rcc
+            .cfgr
+            .sysclk(48.mhz())
+            .pclk1(24.mhz())
+            .freeze();
 
         // let _clocks = rcc
         //     .cfgr
@@ -237,7 +237,7 @@ fn clock_out(rcc: &RCC, gpioc: &GPIOC) {
 //
 //    What is the (default) MCU (SYSCLK) frequency?
 //
-//    8 Mhz
+//    16 Mhz
 //
 //    What is the (default) DWT CYCCNT frequency?
 //
@@ -271,7 +271,7 @@ fn clock_out(rcc: &RCC, gpioc: &GPIOC) {
 //`
 //    What is the frequency of blinking?
 //
-//    ** your answer here **
+//    about 3 Hz
 //
 //    Now change the constant `OFFSET` so you get the same blinking frequency as in 1.
 //    Test and validate that you got the desired behavior.