voroskoi/RP2040-decoder - Change M3JX53VK5IYMZ5I64DFPQQR7EU53YATGDLKZGIAJT7AJXRQF6FFAC

DCC signal reading works

Created by GWZmdyEuGk4KYHchi6j2qBNQpZzHpEVpFDmoDuWLo5fb on August 5, 2025

M3JX53VK5IYMZ5I64DFPQQR7EU53YATGDLKZGIAJT7AJXRQF6FFAC

Dependencies

In channels

main

Change contents

Insertion in src/main.zig at line 17 [2.50]
[9.3533]
[2.475]
```
const log = std.log.scoped(.RP2040);
```
Insertion in src/main.zig at line 48 [2.50]
[2.6420]
[8.552]
```
    rp2xxx.irq.globally_disable();
```

Replacement in src/main.zig at line 78 [2.50]

B:BD[11.2776] → [11.2776:2841]

        std.log.debug("Step{d} expected EMF: {d}", .{ i, val });

[11.2776]

[11.2841]

        log.debug("Step{d} expected EMF: {d}", .{ i, val });

Insertion in src/main.zig at line 82 [2.50]

[12.103]

[7.2292]


    rp2xxx.irq.globally_enable();
    while (dcc.packets.readItem()) |packet| {
        if (packet.address == 55) {
            log.info("packet: {}", .{packet});
            rp2xxx.multicore.fifo.write_blocking(@as(u12, @intCast(@intFromEnum(packet.speed()))) * 100);
        }
    }
    unreachable;

Replacement in src/main.zig at line 142 [2.50]
∅:D[10.1500] → [7.3265:3295]
B:BD[7.3265] → [7.3265:3295]
```
    //         std.log.debug(
```
[10.1500]
[7.3295]
```
    //         log.debug(
```

Replacement in src/main.zig at line 151 [2.50]

B:BD[7.3567] → [7.3567:3631]

    //     std.log.debug("vstart CV: {d}", .{cv.getCV(2 - 1)});

[7.3567]

[3.718]

    //     log.debug("vstart CV: {d}", .{cv.getCV(2 - 1)});

Replacement in src/main.zig at line 161 [2.50]

∅:D[6.688] → [5.1844:1897]

B:BD[5.1844] → [5.1844:1897]

    while (true) {
        microzig.cpu.wfi();
    }

[6.688]

[2.6938]

    // while (true) {
    //     microzig.cpu.wfi();
    // }

Replacement in src/main.zig at line 179 [2.50]

∅:D[10.1612] → [8.1442:1522]

B:BD[6.877] → [8.1442:1522]

            std.log.info("CPU{d}, speed: {}", .{ rp2xxx.get_cpu_id(), speed });

[10.1612]

[6.955]

            log.info("CPU{d}, speed: {}", .{ rp2xxx.get_cpu_id(), speed });

Replacement in src/main.zig at line 188 [2.50]

B:BD[6.1082] → [7.3847:3925]

    // std.log.debug("CPU{d} timerInterrupt start...", .{pico.get_cpu_id()});

[6.1082]

[5.2309]

    // log.debug("CPU{d} timerInterrupt start...", .{pico.get_cpu_id()});

Replacement in src/main.zig at line 197 [2.50]

B:BD[6.1278] → [7.3978:4029]

    // std.log.debug("SP: {} in: {d} out: {d}", .{

[6.1278]

[7.4029]

    // log.debug("SP: {} in: {d} out: {d}", .{

Replacement in src/main.zig at line 205 [2.50]

B:BD[6.1338] → [7.4169:4244]

    // std.log.debug("CPU{d} timerInterrupt done.", .{pico.get_cpu_id()});

[6.1321]

[5.2568]

    // log.debug("CPU{d} timerInterrupt done.", .{pico.get_cpu_id()});

Replacement in src/main.zig at line 211 [2.50]

B:BD[6.1499] → [6.1499:1576]

    // std.log.debug("CPU{d} gpioInterrupt start...", .{pico.get_cpu_id()});

[6.1499]

[5.2698]

    // log.debug("CPU{d} gpioInterrupt start...", .{pico.get_cpu_id()});

Replacement in src/main.zig at line 230 [2.50]
B:BD[5.3338] → [6.1957:1979]
```
    // std.log.debug(
```
[5.3338]
[6.1979]
```
    // log.debug(
```

Replacement in src/main.zig at line 240 [2.50]

B:BD[5.3596] → [6.2126:2200]

    // std.log.debug("CPU{d} gpioInterrupt stop.", .{pico.get_cpu_id()});

[5.3596]

    // log.debug("CPU{d} gpioInterrupt stop.", .{pico.get_cpu_id()});

Replacement in src/gpio.zig at line 73 [8.1556]
B:BD[8.4252] → [8.4252:4286]
```
    rp2xxx.irq.globally_enable();
```
[8.4252]
[8.4286]
```
    // rp2xxx.irq.globally_enable();
```
Replacement in src/dcc.zig at line 6 [4.427]
B:BD[4.512] → [4.512:539]
```
const pico = microzig.hal;
```
[4.512]
[4.539]
```
const rp2xxx = microzig.hal;
```

Replacement in src/dcc.zig at line 52 [4.427]

B:BD[12.543] → [12.543:605]

    pub const TIME_ONEMAX_US = 87; // XXX: doble check these!

[12.543]

[12.605]

    const TR1_MIN_US = 52;
    // const TR1_MAX_US = 64;
    const TR1_MAX_US = 87;

Replacement in src/dcc.zig at line 84 [4.427]

B:BD[4.3101] → [4.3101:3154]

        self.time = pico.time.get_time_since_boot();

[4.3101]

[4.3154]

        self.time = rp2xxx.time.get_time_since_boot();

Replacement in src/dcc.zig at line 88 [4.427]

B:BD[4.3209] → [4.3209:3267]

        const time_end = pico.time.get_time_since_boot();

[4.3209]

[4.3267]

        const time_end = rp2xxx.time.get_time_since_boot();

Replacement in src/dcc.zig at line 90 [4.427]

B:BD[4.3314] → [12.1212:1453]

        // XXX: this might be useful...
        // if (diff.less_than(@enumFromInt(5))) return;
        log.debug("DIFF: {d}", .{diff.to_us()});
        const bit: BitType = if (diff.less_than(@enumFromInt(TIME_ONEMAX_US))) .one else .zero;

[4.3314]

[4.3407]


        // if (diff.less_than(@enumFromInt(TR1_MIN_US))) {
        //     log.debug("Diff {d} is too short, ignoring", .{diff.to_us()});
        //     self.time = rp2xxx.time.get_time_since_boot();
        //     return;
        // }
        // log.debug("DIFF: {d}", .{diff.to_us()});
        const bit: BitType = if (diff.less_than(@enumFromInt(TR1_MAX_US))) .one else .zero;

Deletion in src/dcc.zig at line 121 [4.427]

B:BD[4.4282] → [12.1772:1834]

                log.debug("DDC buffer: {b}", .{self.buffer});

Replacement in src/dcc.zig at line 129 [4.427]

∅:D[12.1944] → [4.5658:5676]

B:BD[4.5658] → [4.5658:5676]

B:BD[4.5676] → [10.1878:1945]

                }
                if (self.buffer & @as(BUFFER_TYPE, MASK_4BYTES) ==

[12.1944]

[10.1945]

                    self.reset();
                } else if (self.buffer & @as(BUFFER_TYPE, MASK_4BYTES) ==

Replacement in src/dcc.zig at line 134 [4.427]

∅:D[12.2018] → [10.2094:2179]

B:BD[10.2094] → [10.2094:2179]

                }
                if (self.buffer & @as(BUFFER_TYPE, MASK_5BYTES) ==

[12.2018]

[10.2179]

                } else if (self.buffer & @as(BUFFER_TYPE, MASK_5BYTES) ==

Replacement in src/dcc.zig at line 184 [4.427]

B:BD[4.6124] → [12.2912:2967]

        pico.time.sleep_us(Parser.TIME_ONEMAX_US / 2);

[4.6124]

[4.6176]

        rp2xxx.time.sleep_us(Parser.TIME_ONEMAX_US / 2);

Replacement in src/dcc.zig at line 189 [4.427]

B:BD[4.6364] → [12.2968:3023]

        pico.time.sleep_us(Parser.TIME_ONEMAX_US * 2);

[4.6364]

[4.6416]

        rp2xxx.time.sleep_us(Parser.TIME_ONEMAX_US * 2);