made registers code build

Author: BartMassey

mdbook/src/07-registers/Cargo.toml

@@ -7,3 +7,14 @@ authors = [
 edition = "2021"
 name = "registers"
 version = "0.2.0"
+
+[dependencies]
+cortex-m = "0.7.7"
+cortex-m-rt = "0.7.3"
+microbit-v2 = "0.15.0"
+panic-rtt-target = "0.1.3"
+rtt-target = "0.5.0"
+
+[dependencies.nrf52833-hal]
+version = "0.18.0"
+features = ["rt"]

mdbook/src/07-registers/bad-address.md

@@ -45,7 +45,7 @@ handler*, which is just a function/subroutine.
 There are different kind of exceptions. Each kind of exception is raised by different conditions and
 each one is handled by a different exception handler.
 
-The `aux7` crate depends on the `cortex-m-rt` crate which defines a default
+The `registers` crate depends on the `cortex-m-rt` crate which defines a default
 *hard fault* handler, named `HardFault_`, that handles the "invalid memory
 address" exception. `embed.gdb` placed a breakpoint on `HardFault`; that's why
 the debugger halted your program while it was executing the exception handler.

mdbook/src/07-registers/optimization.md

@@ -34,7 +34,7 @@ $ cat debug.dump
      160:      	push	{r7, lr}
      162:      	mov	r7, sp
      164:      	sub	sp, #0x8
-     166:      	bl	0x198 <aux7::init::hb6346637538e8ec5> @ imm = #0x2e
+     166:      	bl	0x198 <registers::init::hb6346637538e8ec5> @ imm = #0x2e
      16a:      	movw	r1, #0x504        ; <-- Load lower half of `OUT` register address into register `r1`
      16e:      	movt	r1, #0x5000       ; <-- Load upper half of `OUT` register address into register `r1`
      172:      	str	r1, [sp, #0x4]
@@ -69,7 +69,7 @@ $ cat release.dump
 00000160 <registers::__cortex_m_rt_main::h1f38525e07b97485>:
      160:      	push	{r7, lr}
      162:      	mov	r7, sp
-     164:      	bl	0x17a <aux7::init::h4390f1d4f8a071f7> @ imm = #0x12
+     164:      	bl	0x17a <registers::init::h4390f1d4f8a071f7> @ imm = #0x12
      168:      	movw	r0, #0x504          ; <-- Load lower half of `OUT` register address into register `r0`
      16c:      	movt	r0, #0x5000         ; <-- Load upper half of `OUT` register address into register `r0`
      170:      	ldr	r1, [r0]                ; <-- (?) Load value at the address in `r0` into `r1`.
@@ -110,7 +110,7 @@ $ cat release.volatile.dump
 00000160 <registers::__cortex_m_rt_main::h1f38525e07b97485>:
      160:      	push	{r7, lr}
      162:      	mov	r7, sp
-     164:      	bl	0x192 <aux7::init::h4390f1d4f8a071f7> @ imm = #0x2a
+     164:      	bl	0x192 <registers::init::h4390f1d4f8a071f7> @ imm = #0x2a
      168:      	movw	r0, #0x504
      16c:      	movt	r0, #0x5000
      170:      	ldr	r1, [r0]

mdbook/src/07-registers/src/bin/bad.rs

@@ -4,11 +4,11 @@
 use core::ptr;
 
 #[allow(unused_imports)]
-use aux7::entry;
+use registers::entry;
 
 #[entry]
 fn main() -> ! {
-    aux7::init();
+    registers::init();
 
     unsafe {
         ptr::read_volatile(0x5000_A784 as *const u32);

mdbook/src/07-registers/src/bin/spooky.rs

@@ -4,7 +4,7 @@
 use core::ptr;
 
 #[allow(unused_imports)]
-use aux7::{entry, rprintln};
+use registers::{entry, rprintln};
 
 // Print the current contents of P0.OUT
 fn print_out() {
@@ -17,7 +17,7 @@ fn print_out() {
 
 #[entry]
 fn main() -> ! {
-    aux7::init();
+    registers::init();
 
     unsafe {
         // A bunch of magic addresses!

mdbook/src/07-registers/src/bin/type-safe.rs

@@ -2,11 +2,11 @@
 #![no_std]
 
 #[allow(unused_imports)]
-use aux7::entry;
+use registers::entry;
 
 #[entry]
 fn main() -> ! {
-    let (p0, _p1) = aux7::init();
+    let (p0, _p1) = registers::init();
 
     // Turn on the top row
     p0.out.modify(|_, w| w.pin21().set_bit());

mdbook/src/07-registers/src/bin/volatile.rs

@@ -4,11 +4,11 @@
 use core::ptr;
 
 #[allow(unused_imports)]
-use aux7::entry;
+use registers::entry;
 
 #[entry]
 fn main() -> ! {
-    aux7::init();
+    registers::init();
 
     unsafe {
         // A magic address!

mdbook/src/07-registers/src/main.rs

@@ -2,11 +2,11 @@
 #![no_std]
 
 #[allow(unused_imports)]
-use aux7::entry;
+use registers::entry;
 
 #[entry]
 fn main() -> ! {
-    aux7::init();
+    registers::init();
 
     unsafe {
         // A magic address!

mdbook/src/07-registers/type-safe-manipulation.md

@@ -17,7 +17,7 @@ Wouldn't it be nice if we had an API to manipulate registers in a "safe" manner?
 should encode these three points I've mentioned: No messing around with the actual addresses, should
 respect read/write permissions and should prevent modification of the reserved parts of a register.
 
-Well, we do! `aux7::init()` actually returns a value that provides a type safe API to manipulate the
+Well, we do! `registers::init()` actually returns a value that provides a type safe API to manipulate the
 registers of the `P0` and `P1` ports.
 
 As you may remember: a group of registers associated to a peripheral is called register block, and
@@ -340,7 +340,7 @@ Then search for `main` in `release.type-safe.dump`
 00000160 <registers::__cortex_m_rt_main::h0e9b57c6799332fd>:
      160:      	push	{r7, lr}
      162:      	mov	r7, sp
-     164:      	bl	0x192 <aux7::init::hec71dddc40be11b5> @ imm = #0x2a
+     164:      	bl	0x192 <registers::init::hec71dddc40be11b5> @ imm = #0x2a
      168:      	movw	r0, #0x504
      16c:      	movt	r0, #0x5000
      170:      	ldr	r1, [r0]