Set and use default baud rate for UART (#661)

Grazfather · mattnite · web-flow · commit c2af36322544 · 2025-08-28T16:49:07.000-07:00
Co-authored-by: Matt Knight &lt;mattnite@proton.me&gt;
diff --git a/examples/nordic/nrf5x/src/i2c_accel.zig b/examples/nordic/nrf5x/src/i2c_accel.zig
@@ -25,7 +25,6 @@ pub fn main() !void {
     uart.apply(.{
         .tx_pin = board.uart_tx,
         .rx_pin = board.uart_rx,
-        .baud_rate = .@"115200",
     });
 
     nrf.uart.init_logger(uart);
diff --git a/examples/nordic/nrf5x/src/i2c_bus_scan.zig b/examples/nordic/nrf5x/src/i2c_bus_scan.zig
@@ -25,7 +25,6 @@ pub fn main() !void {
     uart.apply(.{
         .tx_pin = board.uart_tx,
         .rx_pin = board.uart_rx,
-        .baud_rate = .@"115200",
     });
 
     nrf.uart.init_logger(uart);
diff --git a/examples/nordic/nrf5x/src/i2c_hall_effect.zig b/examples/nordic/nrf5x/src/i2c_hall_effect.zig
@@ -27,7 +27,6 @@ pub fn main() !void {
     uart.apply(.{
         .tx_pin = board.uart_tx,
         .rx_pin = board.uart_rx,
-        .baud_rate = .@"115200",
     });
 
     nrf.uart.init_logger(uart);
diff --git a/examples/nordic/nrf5x/src/i2c_temp.zig b/examples/nordic/nrf5x/src/i2c_temp.zig
@@ -29,7 +29,6 @@ pub fn main() !void {
     uart.apply(.{
         .tx_pin = board.uart_tx,
         .rx_pin = board.uart_rx,
-        .baud_rate = .@"115200",
     });
 
     nrf.uart.init_logger(uart);
diff --git a/examples/nordic/nrf5x/src/spi_master.zig b/examples/nordic/nrf5x/src/spi_master.zig
@@ -22,7 +22,6 @@ pub fn main() !void {
     uart.apply(.{
         .tx_pin = board.uart_tx,
         .rx_pin = board.uart_rx,
-        .baud_rate = .@"115200",
     });
 
     nrf.uart.init_logger(uart);
diff --git a/examples/nordic/nrf5x/src/uart.zig b/examples/nordic/nrf5x/src/uart.zig
@@ -16,11 +16,6 @@ pub fn main() !void {
     uart.apply(.{
         .tx_pin = board.uart_tx,
         .rx_pin = board.uart_rx,
-        // .control_flow = .{
-        //     .cts_pin = board.uart_cts,
-        //     .rts_pin = board.uart_rts,
-        // },
-        .baud_rate = .@"115200",
     });
 
     nrf.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/adc.zig b/examples/raspberrypi/rp2xxx/src/adc.zig
@@ -8,7 +8,6 @@ const adc = rp2xxx.adc;
 const time = rp2xxx.time;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub const microzig_options = microzig.Options{
@@ -19,7 +18,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/cyw43.zig b/examples/raspberrypi/rp2xxx/src/cyw43.zig
@@ -12,7 +12,6 @@ const drivers = microzig.hal.drivers;
 const CYW43_Pio_Device = drivers.CYW43_Pio_Device;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub const microzig_options = microzig.Options{
@@ -24,7 +23,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/dma.zig b/examples/raspberrypi/rp2xxx/src/dma.zig
@@ -7,7 +7,6 @@ const gpio = rp2xxx.gpio;
 const dma = rp2xxx.dma;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 const hello: []const u8 = "Hello, world! (from DMA)";
@@ -28,7 +27,6 @@ pub fn main() !void {
     uart_tx_pin.set_function(.uart);
 
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/i2c_accel.zig b/examples/raspberrypi/rp2xxx/src/i2c_accel.zig
@@ -10,7 +10,6 @@ const I2C_Device = rp2xxx.drivers.I2C_Device;
 const ICM_20948 = microzig.drivers.sensor.ICM_20948;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 const i2c0 = i2c.instance.num(0);
 
@@ -25,7 +24,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/i2c_bus_scan.zig b/examples/raspberrypi/rp2xxx/src/i2c_bus_scan.zig
@@ -7,7 +7,6 @@ const i2c = rp2xxx.i2c;
 const gpio = rp2xxx.gpio;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub const microzig_options = microzig.Options{
@@ -21,7 +20,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/interrupts.zig b/examples/raspberrypi/rp2xxx/src/interrupts.zig
@@ -7,7 +7,6 @@ const interrupt = microzig.cpu.interrupt;
 
 const led = rp2xxx.gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = rp2xxx.gpio.num(0);
 
 const chip = rp2xxx.compatibility.chip;
@@ -53,7 +52,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/mlx90640.zig b/examples/raspberrypi/rp2xxx/src/mlx90640.zig
@@ -10,7 +10,6 @@ const MLX90640 = sensor.MLX90640;
 const time = rp2xxx.time;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 var i2c0 = i2c.instance.num(0);
@@ -71,7 +70,6 @@ pub fn main() !void {
 fn init() !void {
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/rp2040_only/flash_id.zig b/examples/raspberrypi/rp2xxx/src/rp2040_only/flash_id.zig
@@ -7,7 +7,6 @@ const gpio = rp2xxx.gpio;
 const flash = rp2xxx.flash;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub fn panic(message: []const u8, _: ?*std.builtin.StackTrace, _: ?usize) noreturn {
@@ -25,7 +24,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/rp2040_only/flash_program.zig b/examples/raspberrypi/rp2xxx/src/rp2040_only/flash_program.zig
@@ -9,7 +9,6 @@ const clocks = rp2xxx.clocks;
 
 const led = gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 const flash_target_offset: u32 = 256 * 1024;
@@ -30,7 +29,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/rp2040_only/i2c_slave.zig b/examples/raspberrypi/rp2xxx/src/rp2040_only/i2c_slave.zig
@@ -6,7 +6,6 @@ const i2c = rp2xxx.i2c;
 const time = rp2xxx.time;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 const pin_config = rp2xxx.pins.GlobalConfiguration{
@@ -35,7 +34,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/rp2040_only/random.zig b/examples/raspberrypi/rp2xxx/src/rp2040_only/random.zig
@@ -11,7 +11,6 @@ const rand = rp2xxx.rand;
 
 const led = gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub fn panic(message: []const u8, _: ?*std.builtin.StackTrace, _: ?usize) noreturn {
@@ -29,7 +28,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/rp2040_only/usb_hid.zig b/examples/raspberrypi/rp2xxx/src/rp2040_only/usb_hid.zig
@@ -10,7 +10,6 @@ const usb = rp2xxx.usb;
 
 const led = gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 const usb_dev = rp2xxx.usb.Usb(.{});
@@ -68,7 +67,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/rp2350_only/always_on_timer.zig b/examples/raspberrypi/rp2xxx/src/rp2350_only/always_on_timer.zig
@@ -17,7 +17,6 @@ const pin_config = hal.pins.GlobalConfiguration{
 };
 
 const pins = pin_config.pins();
-const baud_rate = 115200;
 
 pub const microzig_options = microzig.Options{
     .log_level = .debug,
@@ -31,7 +30,6 @@ pub fn main() !void {
     pin_config.apply();
 
     uart0.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = hal.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/rp2350_only/random_data.zig b/examples/raspberrypi/rp2xxx/src/rp2350_only/random_data.zig
@@ -16,7 +16,6 @@ const pin_config = hal.pins.GlobalConfiguration{
 };
 
 const pins = pin_config.pins();
-const baud_rate = 115200;
 
 pub const microzig_options = microzig.Options{
     .log_level = .debug,
@@ -27,7 +26,6 @@ pub fn main() !void {
     pin_config.apply();
 
     uart0.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = hal.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/spi_loopback_dma.zig b/examples/raspberrypi/rp2xxx/src/spi_loopback_dma.zig
@@ -7,7 +7,6 @@ const gpio = rp2xxx.gpio;
 const dma = rp2xxx.dma;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 const BUF_LEN = 0x100;
@@ -22,7 +21,6 @@ pub fn main() !void {
     uart_tx_pin.set_function(.uart);
 
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/spi_slave.zig b/examples/raspberrypi/rp2xxx/src/spi_slave.zig
@@ -7,7 +7,6 @@ const gpio = rp2xxx.gpio;
 const chip = rp2xxx.compatibility.chip;
 
 const uart = rp2xxx.uart.instance.num(0);
-const uart_baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub const microzig_options = microzig.Options{
@@ -37,7 +36,6 @@ pub fn main() !void {
 
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = uart_baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/stepper_driver.zig b/examples/raspberrypi/rp2xxx/src/stepper_driver.zig
@@ -8,7 +8,6 @@ const GPIO_Device = rp2xxx.drivers.GPIO_Device;
 const A4988 = microzig.drivers.stepper.A4988;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub fn panic(message: []const u8, _: ?*std.builtin.StackTrace, _: ?usize) noreturn {
@@ -25,7 +24,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/stepper_driver_dumb.zig b/examples/raspberrypi/rp2xxx/src/stepper_driver_dumb.zig
@@ -8,7 +8,6 @@ const GPIO_Device = rp2xxx.drivers.GPIO_Device;
 const ULN2003 = microzig.drivers.stepper.ULN2003;
 
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub fn panic(message: []const u8, _: ?*std.builtin.StackTrace, _: ?usize) noreturn {
@@ -25,7 +24,6 @@ pub fn main() !void {
     // init uart logging
     uart_tx_pin.set_function(.uart);
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
     rp2xxx.uart.init_logger(uart);
diff --git a/examples/raspberrypi/rp2xxx/src/uart_echo.zig b/examples/raspberrypi/rp2xxx/src/uart_echo.zig
@@ -8,7 +8,6 @@ const clocks = rp2xxx.clocks;
 
 const led = gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 const uart_rx_pin = gpio.num(1);
 
@@ -21,7 +20,6 @@ pub fn main() !void {
     }
 
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/uart_log.zig b/examples/raspberrypi/rp2xxx/src/uart_log.zig
@@ -6,7 +6,6 @@ const gpio = rp2xxx.gpio;
 
 const led = gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 
 pub fn panic(message: []const u8, _: ?*std.builtin.StackTrace, _: ?usize) noreturn {
@@ -28,7 +27,6 @@ pub fn main() !void {
     uart_tx_pin.set_function(.uart);
 
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/raspberrypi/rp2xxx/src/usb_cdc.zig b/examples/raspberrypi/rp2xxx/src/usb_cdc.zig
@@ -9,7 +9,6 @@ const usb = rp2xxx.usb;
 
 const led = gpio.num(25);
 const uart = rp2xxx.uart.instance.num(0);
-const baud_rate = 115200;
 const uart_tx_pin = gpio.num(0);
 const uart_rx_pin = gpio.num(1);
 
@@ -72,7 +71,6 @@ pub fn main() !void {
     }
 
     uart.apply(.{
-        .baud_rate = baud_rate,
         .clock_config = rp2xxx.clock_config,
     });
 
diff --git a/examples/stmicro/stm32/src/stm32f1xx/adc.zig b/examples/stmicro/stm32/src/stm32f1xx/adc.zig
@@ -40,7 +40,6 @@ pub fn main() !void {
     ADC_pin2.set_input_mode(.analog);
 
     try uart.apply_runtime(.{
-        .baud_rate = 115200,
         .clock_speed = rcc.get_clock(.USART1),
     });
 
diff --git a/examples/stmicro/stm32/src/stm32f1xx/adc_dualmode.zig b/examples/stmicro/stm32/src/stm32f1xx/adc_dualmode.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/advanced_adc.zig b/examples/stmicro/stm32/src/stm32f1xx/advanced_adc.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/i2c.zig b/examples/stmicro/stm32/src/stm32f1xx/i2c.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/i2c_bus_scan.zig b/examples/stmicro/stm32/src/stm32f1xx/i2c_bus_scan.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/rcc.zig b/examples/stmicro/stm32/src/stm32f1xx/rcc.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/ssd1306.zig b/examples/stmicro/stm32/src/stm32f1xx/ssd1306.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/timer_capture.zig b/examples/stmicro/stm32/src/stm32f1xx/timer_capture.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/uart_echo.zig b/examples/stmicro/stm32/src/stm32f1xx/uart_echo.zig
diff --git a/examples/stmicro/stm32/src/stm32f1xx/uart_log.zig b/examples/stmicro/stm32/src/stm32f1xx/uart_log.zig
diff --git a/port/nordic/nrf5x/src/hal/uart.zig b/port/nordic/nrf5x/src/hal/uart.zig
diff --git a/port/raspberrypi/rp2xxx/src/hal/uart.zig b/port/raspberrypi/rp2xxx/src/hal/uart.zig
diff --git a/port/stmicro/stm32/src/hals/STM32F103/uart.zig b/port/stmicro/stm32/src/hals/STM32F103/uart.zig
