echo.zig (712B)
1 const std = @import("std"); 2 const pi = @import("pi"); 3 4 const uart = pi.devices.mini_uart; 5 const clock = pi.devices.clock; 6 7 pub fn main() !void { 8 while (true) { 9 const status = uart.status(); 10 uart.print("rx queue: {d}, rx hw: {d}, rx ready: {any}, tx queue: {d}, tx hw: {d}, tx ready: {any}\n", .{ 11 uart.read_queue_length(), 12 status.rx_fill_level, 13 uart.can_read(), 14 uart.write_queue_length(), 15 status.tx_fill_level, 16 uart.can_write(), 17 }); 18 19 while (uart.can_read()) { 20 const byte = uart.read_byte_sync(); 21 uart.print(" read: 0x{X}\n", .{byte}); 22 } 23 24 clock.delay_s(1); 25 } 26 }