Rick

build.zig

@@ -22,6 +22,7 @@ const demos: []const Demo = &.{
     .{ .name = "additive_synthesis",     .path = "demos/06_additive_synthesis/main.zig" },
     .{ .name = "fm_synthesis_lfo",       .path = "demos/07_fm_synthesis/lfo.zig" },
     .{ .name = "fm_synthesis_operators", .path = "demos/07_fm_synthesis/operators.zig" },
+    .{ .name = "rick", .path = "demos/08_rick/main.zig" },
     // zig fmt: on
 };
 

demos/08_rick/main.zig

@@ -0,0 +1,42 @@
+const std = @import("std");
+const assert = std.debug.assert;
+
+const microzig = @import("microzig");
+const cpu = microzig.cpu;
+const rp2040 = microzig.hal;
+const gpio = rp2040.gpio;
+const irq = rp2040.irq;
+const time = rp2040.time;
+
+// code for this workshop
+const workshop = @import("workshop");
+const Oscillator = workshop.Oscillator;
+
+// configuration
+const sample_rate = 44_100;
+const Sample = i16;
+
+// hardware blocks
+const I2S = workshop.I2S(Sample, .{ .sample_rate = sample_rate });
+
+const uart = rp2040.uart.num(0);
+
+const bruh = @embedFile("rick.raw");
+
+pub fn main() !void {
+    const i2s = I2S.init(.pio0, .{
+        .clock_config = rp2040.clock_config,
+        .clk_pin = gpio.num(2),
+        .word_select_pin = gpio.num(3),
+        .data_pin = gpio.num(4),
+    });
+
+    var fbs = std.io.fixedBufferStream(bruh);
+
+    while (true) {
+        if (!i2s.is_writable())
+            continue;
+
+        i2s.write_mono(fbs.reader().readIntLittle(i16) catch @panic("NO!"));
+    }
+}