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HAL and demos for verifying hardware subsystems
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| //! This is firmware for the SYCL badge. | ||
| //! | ||
| //! The badge image | ||
| //! For normal operation, the default app will run. Pressing select will go to | ||
| //! the main menu. The default app will display the SYCL logo, users will be | ||
| //! able to change the default app. | ||
| //! | ||
| //! Apps will have the option to to save state to non-volatile memory. This | ||
| //! will prompt the user. The user will either exit without saving, save and | ||
| //! exit, or cancel. | ||
| //! | ||
| //! TODO: | ||
| //! - USB mass drive | ||
| //! - USB CDC logging | ||
| const std = @import("std"); | ||
|
|
||
| const microzig = @import("microzig"); | ||
| const board = microzig.board; | ||
| const hal = microzig.hal; | ||
| const usb = hal.usb; | ||
|
|
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| const peripherals = microzig.chip.peripherals; | ||
| const MCLK = peripherals.MCLK; | ||
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| const led_pin = board.D13; | ||
| const backlight = board.TFT_LITE; | ||
| const @"D+" = board.@"D+"; | ||
| const @"D-" = board.@"D-"; | ||
|
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| pub fn main() !void { | ||
| // Initialize clocks | ||
| MCLK.AHBMASK.modify(.{ .USB_ = 1 }); | ||
| MCLK.APBBMASK.modify(.{ .USB_ = 1 }); | ||
|
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| // Initialize pins | ||
| led_pin.set_dir(.out); | ||
| backlight.set_dir(.out); | ||
| @"D+".set_mux(.H); | ||
| @"D-".set_mux(.H); | ||
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| backlight.write(.low); | ||
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| const period = 200000; | ||
| while (true) { | ||
| delay_count(period); | ||
| led_pin.write(.high); | ||
| delay_count(period); | ||
| led_pin.write(.low); | ||
| } | ||
| } | ||
|
|
||
| fn delay_count(count: u32) void { | ||
| var i: u32 = 0; | ||
| while (i < count) : (i += 1) {} | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| const std = @import("std"); | ||
| const microzig = @import("microzig"); | ||
| const hal = microzig.hal; | ||
| const gclk = hal.gclk; | ||
| const timer = hal.timer; | ||
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| const spkr_en_pin = microzig.board.SPKR_EN; | ||
| const analog_out_pin = microzig.board.A0; | ||
| const led_pin = microzig.board.D13; | ||
|
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| pub fn main() !void { | ||
| spkr_en_pin.set_dir(.out); | ||
| analog_out_pin.set_dir(.out); | ||
| led_pin.set_dir(.out); | ||
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| analog_out_pin.write(.low); | ||
| spkr_en_pin.write(.high); | ||
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| gclk.enable_generator(.GCLK1, .DFLL, .{ | ||
| .divsel = .DIV1, | ||
| .div = 48, | ||
| }); | ||
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| timer.init(); | ||
| while (true) { | ||
| led_pin.toggle(); | ||
| analog_out_pin.toggle(); | ||
| timer.delay_us(std.time.us_per_ms); | ||
| } | ||
| } | ||
|
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||
| fn delay_count(count: u32) void { | ||
| var i: u32 = 0; | ||
| while (i < count) : (i += 1) {} | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| const microzig = @import("microzig"); | ||
|
|
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| const led_pin = microzig.board.D13; | ||
|
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| pub fn main() !void { | ||
| // Initialize pins | ||
| led_pin.set_dir(.out); | ||
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| const period = 200000; | ||
| while (true) { | ||
| delay_count(period); | ||
| led_pin.write(.high); | ||
| delay_count(period); | ||
| led_pin.write(.low); | ||
| } | ||
| } | ||
|
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| fn delay_count(count: u32) void { | ||
| var i: u32 = 0; | ||
| while (i < count) : (i += 1) {} | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| const std = @import("std"); | ||
| const microzig = @import("microzig"); | ||
| const hal = microzig.hal; | ||
| const timer = hal.timer; | ||
| const gclk = hal.gclk; | ||
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| const led_pin = microzig.board.D13; | ||
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| pub fn main() !void { | ||
| // Initialize pins | ||
| led_pin.set_dir(.out); | ||
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| gclk.enable_generator(.GCLK1, .DFLL, .{ | ||
| .divsel = .DIV1, | ||
| .div = 48, | ||
| }); | ||
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| timer.init(); | ||
| while (true) { | ||
| led_pin.toggle(); | ||
| timer.delay_us(1 * std.time.us_per_s); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| const std = @import("std"); | ||
| const microzig = @import("microzig"); | ||
| const board = microzig.board; | ||
|
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| // pins | ||
| const Buttons = board.Buttons; | ||
| const led_pin = board.D13; | ||
|
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| const Symbol = enum { | ||
| dot, | ||
| dash, | ||
|
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| fn blink(symbol: Symbol, pin: microzig.hal.port.Pin) void { | ||
| pin.write(.high); | ||
| delay_count(switch (symbol) { | ||
| .dot => unit_period_count, | ||
| .dash => 3 * unit_period_count, | ||
| }); | ||
| pin.write(.low); | ||
| delay_count(unit_period_count); | ||
| } | ||
| }; | ||
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| const unit_period_count = 200000; | ||
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| const Mapping = struct { | ||
| character: u8, | ||
| symbols: []const Symbol, | ||
| }; | ||
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| const alphabet = [_]Mapping{ | ||
| .{ .character = 'a', .symbols = &.{ .dot, .dash } }, // A: .- | ||
| .{ .character = 'b', .symbols = &.{ .dash, .dot, .dot, .dot } }, // B: -... | ||
| .{ .character = 'c', .symbols = &.{ .dash, .dot, .dash, .dot } }, // C: -.-. | ||
| .{ .character = 'd', .symbols = &.{ .dash, .dot, .dot } }, // D: -.. | ||
| .{ .character = 'e', .symbols = &.{.dot} }, // E: . | ||
| .{ .character = 'f', .symbols = &.{ .dot, .dot, .dash, .dot } }, // F: ..-. | ||
| .{ .character = 'g', .symbols = &.{ .dash, .dash, .dot } }, // G: --. | ||
| .{ .character = 'h', .symbols = &.{ .dot, .dot, .dot, .dot } }, // H: .... | ||
| .{ .character = 'i', .symbols = &.{ .dot, .dot } }, // I: .. | ||
| .{ .character = 'j', .symbols = &.{ .dot, .dash, .dash, .dash } }, // J: .--- | ||
| .{ .character = 'k', .symbols = &.{ .dash, .dot, .dash } }, // K: -.- | ||
| .{ .character = 'l', .symbols = &.{ .dot, .dash, .dot, .dot } }, // L: .-.. | ||
| .{ .character = 'm', .symbols = &.{ .dash, .dash } }, // M: -- | ||
| .{ .character = 'n', .symbols = &.{ .dash, .dot } }, // N: -. | ||
| .{ .character = 'o', .symbols = &.{ .dash, .dash, .dash } }, // O: --- | ||
| .{ .character = 'p', .symbols = &.{ .dot, .dash, .dash, .dot } }, // P: .--. | ||
| .{ .character = 'q', .symbols = &.{ .dash, .dash, .dot, .dash } }, // Q: --.- | ||
| .{ .character = 'r', .symbols = &.{ .dot, .dash, .dot } }, // R: .-. | ||
| .{ .character = 's', .symbols = &.{ .dot, .dot, .dot } }, // S: ... | ||
| .{ .character = 't', .symbols = &.{.dash} }, // T: - | ||
| .{ .character = 'u', .symbols = &.{ .dot, .dot, .dash } }, // U: ..- | ||
| .{ .character = 'v', .symbols = &.{ .dot, .dot, .dot, .dash } }, // V: ...- | ||
| .{ .character = 'w', .symbols = &.{ .dot, .dash, .dash } }, // W: .-- | ||
| .{ .character = 'x', .symbols = &.{ .dash, .dot, .dot, .dash } }, // X: -..- | ||
| .{ .character = 'y', .symbols = &.{ .dash, .dot, .dash, .dash } }, // Y: -.-- | ||
| .{ .character = 'z', .symbols = &.{ .dash, .dash, .dot, .dot } }, // Z: --.. | ||
| }; | ||
|
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| fn get_symbols(character: u8) []const Symbol { | ||
| return for (alphabet) |entry| { | ||
| if (entry.character == character) | ||
| break entry.symbols; | ||
| } else unreachable; | ||
| } | ||
|
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| pub fn main() !void { | ||
| Buttons.configure(); | ||
| // Use morse code to convey which button is currently pressed | ||
| led_pin.set_dir(.out); | ||
|
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| while (true) { | ||
| const message: []const u8 = blk: { | ||
| const buttons = Buttons.read_from_port(); | ||
| inline for (@typeInfo(Buttons).Struct.fields) |field| { | ||
| if (@field(buttons, field.name) == 1) | ||
| break :blk field.name; | ||
| } | ||
|
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| continue; | ||
| }; | ||
|
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| for (message) |character| { | ||
| const symbols = get_symbols(character); | ||
| for (symbols) |symbol| symbol.blink(led_pin); | ||
|
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| // there's supposed to be 3, but we already wait one period after every symbol | ||
| delay_count(2 * unit_period_count); | ||
| } | ||
|
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| delay_count(5 * unit_period_count); | ||
| } | ||
| } | ||
|
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| fn delay_count(count: u32) void { | ||
| var i: u32 = 0; | ||
| while (i < count) : (i += 1) {} | ||
| } |
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