clocking 4Mhz, itm in zero-tasks

.vscode/launch.json

@@ -26,15 +26,16 @@
             "request": "attach",
             "name": "Debug nested",
             "gdbpath": "/usr/bin/arm-none-eabi-gdb",
-            "executable": "./target/thumbv7em-none-eabihf/debug/examples/nested",
+            "executable": "./target/thumbv7m-none-eabi/debug/examples/nested",
             "target": ":3333",
             "remote": true,
             "autorun": [
                 "monitor reset init",
+                "monitor adapter_khz 5000",
                 "monitor arm semihosting enable",
-                "monitor tpiu config internal /tmp/itm.log uart off 16000000",
-                "monitor itm port 0 on",
-                "load"
+                "monitor reset init",
+                "load",
+                "monitor reset init"
             ],
             "cwd": "${workspaceRoot}"
         },
@@ -117,6 +118,8 @@
             "autorun": [
                 "monitor reset init",
                 "monitor adapter_khz 5000",
+                "monitor tpiu config internal /tmp/itm.log uart off 4000000",
+                "monitor itm port 0 on",
                 "monitor arm semihosting enable",
                 "monitor reset init",
                 "load",

Cargo.toml

@@ -30,6 +30,16 @@ git = "https://gitlab.henriktjader.com/pln/STM32F40x"
 features = ["rt"]
 version = "0.1.0"
 
+[dev-dependencies.lpc176x5x]
+path = "../lpc176x5x"
+features = ["rt"]
+version = "0.1.0"
+
+
+[dependencies.cortex-m-semihosting]
+version = "0.2.0"
+
+
 [features]
 wcet_bkpt = [] 
 wcet_nop = [] 

doc.md

@@ -24,15 +24,16 @@ Jumper j4, (desoldered)
 
 
 nucleo lpc
-1 VDD_TARGET    - White     -  2 VIO_3V3X       (not used)
+1 VDD_TARGET    -           -  2 VIO_3V3X       (not used)
 2 SWCLK         - Pink      -  6 TCLK_SWCLKX
 3 GND           - Black     - 16 GNDX
 4 SWDIO         - Grey      -  4 TMS_SWDIOX
-5 NRST          - Blue      - 12 RESETX
+5 NRST          -           - 12 RESETX         (not used)
+6 SWO           - Blue      -  8 TDO_SWOX
 
 on the lpc, j4, power is provided from the usb, pin 1-2 bridged
 NRST, should it be connected?
 
 openocd -f interface/stlink-v2-1.cfg -f target/lpc17xx.cfg -c "init; reset halt"
 
-
+* UM10360 

examples/zero-tasks.rs

@@ -4,9 +4,12 @@
 #![feature(proc_macro)]
 #![no_std]
 
+#[macro_use]
+extern crate cortex_m;
+
 extern crate cortex_m_rtfm as rtfm;
 // IMPORTANT always do this rename
-extern crate stm32f40x; // the device crate
+extern crate lpc176x5x; // the device crate
 
 // import the procedural macro
 use rtfm::app;
@@ -17,7 +20,7 @@ use rtfm::app;
 // `main` yourself.
 app! {
     // this is the path to the device crate
-    device: stm32f40x,
+    device: lpc176x5x,
 }
 
 // The initialization phase.
@@ -25,9 +28,18 @@ app! {
 // This runs first and within a *global* critical section. Nothing can preempt
 // this function.
 fn init(p: init::Peripherals) {
+    use lpc176x5x::syscon::clksrcsel::*;
+
     // This function has access to all the peripherals of the device
-    p.GPIOA;
-    p.RCC;
+    let itm = p.ITM;
+    iprintln!(&itm.stim[0], "Hello, world!");
+    let r = p.SYSCON.clksrcsel.read().clksrc();
+    match r {
+        CLKSRCR::SELECTS_THE_INTERNAL => rtfm::bkpt(),
+        _ => rtfm::bkpt(),
+    }
+    //iprintln!(&itm.stim[0], "{:?}", p.SYSCON.clksrcsel.read());
+
     // ..
 }