You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.1 KiB
Zig
45 lines
1.1 KiB
Zig
1 year ago
|
const std = @import("std");
|
||
|
|
const microzig = @import("microzig");
|
||
|
|
|
||
|
|
const rp2040 = microzig.hal;
|
||
|
|
const i2c = rp2040.i2c;
|
||
|
|
const gpio = rp2040.gpio;
|
||
|
|
const peripherals = microzig.chip.peripherals;
|
||
|
|
|
||
|
|
pub const std_options = struct {
|
||
|
|
pub const log_level = .info;
|
||
|
|
pub const logFn = rp2040.uart.log;
|
||
|
|
};
|
||
|
|
|
||
|
|
const uart = rp2040.uart.num(0);
|
||
|
|
const i2c0 = i2c.num(0);
|
||
|
|
|
||
|
|
pub fn main() !void {
|
||
|
|
uart.apply(.{
|
||
|
|
.baud_rate = 115200,
|
||
|
|
.tx_pin = gpio.num(0),
|
||
|
|
.rx_pin = gpio.num(1),
|
||
|
|
.clock_config = rp2040.clock_config,
|
||
|
|
});
|
||
|
|
rp2040.uart.init_logger(uart);
|
||
|
|
|
||
|
|
_ = i2c0.apply(.{
|
||
|
|
.clock_config = rp2040.clock_config,
|
||
|
|
.scl_pin = gpio.num(4),
|
||
|
|
.sda_pin = gpio.num(5),
|
||
|
|
});
|
||
|
|
|
||
|
|
for (0..std.math.maxInt(u7)) |addr| {
|
||
|
|
const a: i2c.Address = @enumFromInt(addr);
|
||
|
|
|
||
|
|
// Skip over any reserved addresses.
|
||
|
|
if (a.is_reserved()) continue;
|
||
|
|
|
||
|
|
var rx_data: [1]u8 = undefined;
|
||
|
|
_ = i2c0.read_blocking(a, &rx_data) catch continue;
|
||
|
|
|
||
|
|
std.log.info("I2C device found at address {X}.", .{addr});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|