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Merged
Grazfather merged 2 commits into from
Feb 16, 2026
Merged

rp2xxx: Build usb examples on rp2350 feather #909

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16e1e41
rp2xxx: Build usb examples on rp2350 feather
Grazfather Feb 15, 2026
eab9420
cleanup imports
Grazfather Feb 15, 2026
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2 changes: 2 additions & 0 deletions examples/raspberrypi/rp2xxx/build.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,8 @@ pub fn build(b: *std.Build) void {
// Adafruit boards
.{ .target = mb.ports.rp2xxx.boards.adafruit.feather_rp2350, .name = "adafruit_feather_rp2350_blinky", .file = "src/board_blinky.zig" },
.{ .target = mb.ports.rp2xxx.boards.adafruit.feather_rp2350, .name = "adafruit_feather_rp2350_multicore", .file = "src/blinky_core1.zig" },
.{ .target = mb.ports.rp2xxx.boards.adafruit.feather_rp2350, .name = "adafruit_feather_rp2350_usb-cdc", .file = "src/usb_cdc.zig" },
.{ .target = mb.ports.rp2xxx.boards.adafruit.feather_rp2350, .name = "adafruit_feather_rp2350_usb-hid", .file = "src/usb_hid.zig" },
.{ .target = mb.ports.rp2xxx.boards.adafruit.metro_rp2350, .name = "adafruit_metro_rp2350_blinky", .file = "src/board_blinky.zig" },

// WaveShare Boards:
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3 changes: 1 addition & 2 deletions examples/raspberrypi/rp2xxx/src/usb_cdc.zig
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Expand Up @@ -3,7 +3,6 @@ const microzig = @import("microzig");

const rp2xxx = microzig.hal;
const time = rp2xxx.time;
const gpio = rp2xxx.gpio;
const usb = microzig.core.usb;
// Port-specific type which implements the DeviceInterface interface, used by the USB core to
// read from/write to the peripheral.
Expand Down Expand Up @@ -79,7 +78,7 @@ pub fn main() !void {
// Ensure that the host as finished enumerating our USB device
if (usb_controller.drivers()) |drivers| {
new = time.get_time_since_boot().to_us();
if (new - old > 500000) {
if (new - old > 500_000) {
old = new;
pins.led.toggle();
i += 1;
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10 changes: 4 additions & 6 deletions examples/raspberrypi/rp2xxx/src/usb_hid.zig
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Expand Up @@ -3,7 +3,6 @@ const microzig = @import("microzig");

const rp2xxx = microzig.hal;
const time = rp2xxx.time;
const gpio = rp2xxx.gpio;
const usb = microzig.core.usb;
const USB_Device = rp2xxx.usb.Polled(.{});

Expand Down Expand Up @@ -171,17 +170,16 @@ pub fn main() !void {

if (usb_controller.drivers()) |drivers| {
new = time.get_time_since_boot().to_us();
const time_since_last = new - old;
if (time_since_last < 2_000_000) {
if (new - old > 2_000_000) {
old = new;
idx = 0;
} else {
idx += @intFromBool(if (idx & 1 == 0 and idx < 2 * message.len)
drivers.keyboard.send_report(
&.{ .modifiers = .none, .keys = .{message[@intCast(idx / 2)]} ++ .{.reserved} ** 5 },
)
else
drivers.keyboard.send_report(&.empty));
} else {
old = new;
idx = 0;
}

if (drivers.keyboard.receive_report()) |report|
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2 changes: 1 addition & 1 deletion port/raspberrypi/rp2xxx/build.zig
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Expand Up @@ -171,7 +171,7 @@ pub fn init(dep: *std.Build.Dependency) Self {
.adafruit = .{
.feather_rp2350 = chip_rp2350_arm.derive(.{
.board = .{
.name = "Adafruit Faether RP2350",
.name = "Adafruit Feather RP2350",
.url = "https://www.adafruit.com/product/6000",
.root_source_file = b.path("src/boards/adafruit_feather_rp2350.zig"),
},
Expand Down