Added ticking

examples/dsi_debug.rs

@@ -13,11 +13,16 @@ use stm32f4::stm32f413::GPIOA;
 //const bit_string: u16 = 0x0;
 //const bit_string: u16 = 0xFFFF;
 const bit_string: u16 = 0x0FFF;
-//actual string 0b1_01111101_1111
+//actual string 0b1_01111101_1111  (send value 255)
 //const bit_s: u32 = 0b10_0110101010100110_10101010; // Start stop high 26 bits (start pos 25)
 //const bit_s: u32 = 0b01_0110101010100110_01010101; // Start stop low
 const bit_s: u32 = 0b10_0101010101010101_10101010;
 
+// actual string 0b1_00000000_1111 (send value 0)
+//const bit_s: u32 = 0b10_0101010101010101_10101010; // Start stop high
+
+const WAIT_TICKS: u16 = 240;
+
 //const bit_string: u16 = 0xF000;
 /*(
 0x0FFF full
@@ -36,6 +41,7 @@ const APP: () = {
         dwt: DWT,
         ON: bool,
         point: u16,
+        tick: u16,
     }
 
     #[init]
@@ -63,13 +69,20 @@ const APP: () = {
         let gpioa = cx.device.GPIOA;
         gpioa.moder.modify(|_, w| unsafe { w.moder5().bits(1) });
         gpioa.moder.modify(|_, w| unsafe { w.moder6().bits(1) });
+        /*
+        unsafe {
+            (*GPIOA::ptr()).odr.modify(|_, w| w.odr5().bit(true));
+        }
+        */
 
         let mut point: u16 = 25;
+        let mut tick: u16 = 0;
 
         init::LateResources {
             dwt: cx.core.DWT,
             ON: false,
             point: point,
+            tick: tick,
         }
     }
 
@@ -87,11 +100,10 @@ const APP: () = {
         }
     }
 
-    #[task(binds = SysTick, resources = [ON, point],)]
+    #[task(binds = SysTick, resources = [ON, point, tick],)]
     fn syst(cx: syst::Context) {
-
         let r = cx.resources;
-        if *r.point != 0 {
+        if *r.point != 0 && false {
             let m = bit_s >> *r.point & 0x1;
             unsafe {
                 if m == 1 {
@@ -105,6 +117,11 @@ const APP: () = {
             unsafe {
                 (*GPIOA::ptr()).odr.modify(|_, w| w.odr5().bit(false));
             }
+            *r.tick = *r.tick + 1;
+            if *r.tick >= WAIT_TICKS {
+                *r.point = 25;
+                *r.tick = 0;
+            }
         }
         /*
         let r = cx.resources;