20e4c9f8f6
* support for a subset of the bootrom functions added: fast bit count/ manipulation functions (tested), fast bulk memory fill/ copy functions (tested), flash access functions (NOT tested), debugging support functions (not implemented), miscellaneous functions (not implemented). * added support for erasing and programming flash from user code. between the first and last call in a programming sequence, the SSI is not in a state where it can handle XIP accesses, so the code that calls the intervening functions must be located in SRAM. this is why I added the time_critical section to rp2040.ld (maybe one should create a dedicated section in ram that is rwx and keep data rwNx). * flash_program.zig example added
81 lines
2.5 KiB
Zig
81 lines
2.5 KiB
Zig
const std = @import("std");
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const Builder = std.build.Builder;
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const Pkg = std.build.Pkg;
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const comptimePrint = std.fmt.comptimePrint;
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const FileSource = std.build.FileSource;
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pub const microzig = @import("deps/microzig/build.zig");
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pub const chips = @import("src/chips.zig");
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pub const boards = @import("src/boards.zig");
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const linkerscript_path = root() ++ "rp2040.ld";
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pub const BuildOptions = struct {
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optimize: std.builtin.OptimizeMode,
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};
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pub const PicoExecutableOptions = struct {
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name: []const u8,
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source_file: FileSource,
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optimize: std.builtin.OptimizeMode = .Debug,
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};
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pub fn addPiPicoExecutable(
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builder: *Builder,
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opts: PicoExecutableOptions,
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) *microzig.EmbeddedExecutable {
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return microzig.addEmbeddedExecutable(builder, .{
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.name = opts.name,
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.source_file = opts.source_file,
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.backing = .{ .board = boards.raspberry_pi_pico },
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.optimize = opts.optimize,
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.linkerscript_source_file = .{ .path = linkerscript_path },
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});
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}
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// this build script is mostly for testing and verification of this
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// package. In an attempt to modularize -- designing for a case where a
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// project requires multiple HALs, it accepts microzig as a param
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pub fn build(b: *Builder) !void {
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const optimize = b.standardOptimizeOption(.{});
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var examples = Examples.init(b, optimize);
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examples.install();
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}
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fn root() []const u8 {
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return comptime (std.fs.path.dirname(@src().file) orelse ".") ++ "/";
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}
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pub const Examples = struct {
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adc: *microzig.EmbeddedExecutable,
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blinky: *microzig.EmbeddedExecutable,
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blinky_core1: *microzig.EmbeddedExecutable,
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gpio_clk: *microzig.EmbeddedExecutable,
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pwm: *microzig.EmbeddedExecutable,
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spi_master: *microzig.EmbeddedExecutable,
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uart: *microzig.EmbeddedExecutable,
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//uart_pins: microzig.EmbeddedExecutable,
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flash_program: *microzig.EmbeddedExecutable,
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pub fn init(b: *Builder, optimize: std.builtin.OptimizeMode) Examples {
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var ret: Examples = undefined;
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inline for (@typeInfo(Examples).Struct.fields) |field| {
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const path = comptime root() ++ "examples/" ++ field.name ++ ".zig";
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@field(ret, field.name) = addPiPicoExecutable(b, .{
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.name = field.name,
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.source_file = .{ .path = path },
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.optimize = optimize,
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});
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}
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return ret;
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}
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pub fn install(examples: *Examples) void {
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inline for (@typeInfo(Examples).Struct.fields) |field|
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@field(examples, field.name).install();
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}
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};
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