sylveos

commit 1a7a430a51a5a35a44787646617187c859fa5ac9
parent 0c7e16ca24bc194c3902be9b967bbcd2a1d62adc
Author: Sylvia Ivory <git@sivory.net>
Date:   Tue, 13 Jan 2026 13:50:36 -0800

Add lab 1

Diffstat:
A
src/labs/lab1.zig
 | 
49
+++++++++++++++++++++++++++++++++++++++++++++++++
M
src/main.zig
 | 
13
++-----------

2 files changed, 51 insertions(+), 11 deletions(-)
diff --git a/src/labs/lab1.zig b/src/labs/lab1.zig
@@ -0,0 +1,49 @@
+const gpio = @import("gpio.zig");
+const util = @import("util.zig");
+
+const led0 = 20;
+const led1 = 21;
+
+pub fn blink_1() void {
+    gpio.set_output(led0);
+    for (0..10) |_| {
+        gpio.set_on(led0);
+        util.delay_cycles(1000000);
+        gpio.set_off(led0);
+        util.delay_cycles(1000000);
+    }
+    gpio.set_on(led0);
+}
+
+pub fn blink_2() void {
+    gpio.set_output(led0);
+    gpio.set_output(led1);
+
+    for (0..10) |_| {
+        gpio.set_on(led0);
+        gpio.set_off(led1);
+        util.delay_cycles(3000000);
+        gpio.set_off(led0);
+        gpio.set_on(led1);
+        util.delay_cycles(3000000);
+    }
+}
+
+pub fn loopback() void {
+    const input = 9;
+    const output = 10;
+
+    gpio.set_output(led0);
+    gpio.set_input(input);
+    gpio.set_ouput(led1);
+    gpio.set_output(output);
+
+    var v = false;
+    for (0..20) |_| {
+        gpio.write(led0, v);
+        gpio.write(output, v);
+        gpio.write(led1, gpio.read(input));
+        util.delay_cycles(1500000);
+        v = !v;
+    }
+}
diff --git a/src/main.zig b/src/main.zig
@@ -1,14 +1,5 @@
-const util = @import("util.zig");
-const gpio = @import("gpio.zig");
+const lab1 = @import("labs/lab1.zig");
 
 pub fn main() void {
-    const led = 20;
-    gpio.set_output(led);
-    for (0..10) |_| {
-        gpio.set_on(led);
-        util.delay_cycles(1000000);
-        gpio.set_off(led);
-        util.delay_cycles(1000000);
-    }
-    gpio.set_on(led);
+    lab1.blink_1();
 }