Initial Commit

This commit is contained in:
dark98
2026-09-06 16:24:00 +01:00
commit 5e42f9c568
13 changed files with 812 additions and 0 deletions
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build
!.vscode/*
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{
"configurations": [
{
"name": "Pico",
"includePath": [
"${workspaceFolder}/**",
"${userHome}/.pico-sdk/sdk/2.3.0/**"
],
"forcedInclude": [
"${userHome}/.pico-sdk/sdk/2.3.0/src/common/pico_base_headers/include/pico.h"
],
"defines": [],
"compilerPath": "${userHome}/.pico-sdk/toolchain/15_2_Rel1/bin/arm-none-eabi-gcc.exe",
"compileCommands": "${workspaceFolder}/build/compile_commands.json",
"cStandard": "c17",
"cppStandard": "c++14",
"intelliSenseMode": "linux-gcc-arm"
}
],
"version": 4
}
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[
{
"name": "Pico",
"compilers": {
"C": "${command:raspberry-pi-pico.getCompilerPath}",
"CXX": "${command:raspberry-pi-pico.getCxxCompilerPath}"
},
"environmentVariables": {
"PATH": "${command:raspberry-pi-pico.getEnvPath};${env:PATH}"
},
"cmakeSettings": {
"Python3_EXECUTABLE": "${command:raspberry-pi-pico.getPythonPath}"
}
}
]
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{
"recommendations": [
"marus25.cortex-debug",
"ms-vscode.cpptools",
"ms-vscode.cpptools-extension-pack",
"ms-vscode.vscode-serial-monitor",
"raspberry-pi.raspberry-pi-pico"
]
}
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{
"version": "0.2.0",
"configurations": [
{
"name": "Pico Debug (Cortex-Debug)",
"cwd": "${userHome}/.pico-sdk/openocd/0.12.0+dev/scripts",
"executable": "${command:raspberry-pi-pico.launchTargetPath}",
"request": "launch",
"type": "cortex-debug",
"servertype": "openocd",
"serverpath": "${userHome}/.pico-sdk/openocd/0.12.0+dev/openocd.exe",
"gdbPath": "${command:raspberry-pi-pico.getGDBPath}",
"debuggerArgs": ["-ex", "set debug-file-directory /debug"],
"device": "${command:raspberry-pi-pico.getChipUppercase}",
"configFiles": [
"raspberrypi-swd.cfg",
"target/${command:raspberry-pi-pico.getTarget}.cfg"
],
"svdFile": "${userHome}/.pico-sdk/sdk/2.3.0/src/${command:raspberry-pi-pico.getChip}/hardware_regs/${command:raspberry-pi-pico.getChipUppercase}.svd",
"runToEntryPoint": "main",
// Fix for no_flash binaries, where monitor reset halt doesn't do what is expected
// Also works fine for flash binaries
"overrideLaunchCommands": [
"monitor reset init",
"load \"${command:raspberry-pi-pico.launchTargetPath}\""
],
"openOCDLaunchCommands": [
"adapter speed 5000"
]
},
{
"name": "Pico Debug (Cortex-Debug with external OpenOCD)",
"cwd": "${workspaceRoot}",
"executable": "${command:raspberry-pi-pico.launchTargetPath}",
"request": "launch",
"type": "cortex-debug",
"servertype": "external",
"gdbTarget": "localhost:3333",
"gdbPath": "${command:raspberry-pi-pico.getGDBPath}",
"debuggerArgs": ["-ex", "set debug-file-directory /debug"],
"device": "${command:raspberry-pi-pico.getChipUppercase}",
"svdFile": "${userHome}/.pico-sdk/sdk/2.3.0/src/${command:raspberry-pi-pico.getChip}/hardware_regs/${command:raspberry-pi-pico.getChipUppercase}.svd",
"runToEntryPoint": "main",
// Fix for no_flash binaries, where monitor reset halt doesn't do what is expected
// Also works fine for flash binaries
"overrideLaunchCommands": [
"monitor reset init",
"load \"${command:raspberry-pi-pico.launchTargetPath}\""
]
}
]
}
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{
"cmake.showSystemKits": false,
"cmake.options.statusBarVisibility": "hidden",
"cmake.options.advanced": {
"build": {
"statusBarVisibility": "hidden"
},
"launch": {
"statusBarVisibility": "hidden"
},
"debug": {
"statusBarVisibility": "hidden"
},
"variant": {
"statusBarVisibility": "hidden"
},
"buildTarget": {
"statusBarVisibility": "hidden"
}
},
"cmake.configureOnEdit": false,
"cmake.automaticReconfigure": false,
"cmake.configureOnOpen": false,
"cmake.generator": "Ninja",
"cmake.cmakePath": "${userHome}/.pico-sdk/cmake/v4.3.4/bin/cmake",
"C_Cpp.debugShortcut": false,
"terminal.integrated.env.windows": {
"PICO_SDK_PATH": "${env:USERPROFILE}/.pico-sdk/sdk/2.3.0",
"PICO_TOOLCHAIN_PATH": "${env:USERPROFILE}/.pico-sdk/toolchain/15_2_Rel1",
"Path": "${env:USERPROFILE}/.pico-sdk/toolchain/15_2_Rel1/bin;${env:USERPROFILE}/.pico-sdk/picotool/2.3.0/picotool;${env:USERPROFILE}/.pico-sdk/cmake/v4.3.4/bin;${env:USERPROFILE}/.pico-sdk/ninja/v1.13.2;${env:PATH}"
},
"terminal.integrated.env.osx": {
"PICO_SDK_PATH": "${env:HOME}/.pico-sdk/sdk/2.3.0",
"PICO_TOOLCHAIN_PATH": "${env:HOME}/.pico-sdk/toolchain/15_2_Rel1",
"PATH": "${env:HOME}/.pico-sdk/toolchain/15_2_Rel1/bin:${env:HOME}/.pico-sdk/picotool/2.3.0/picotool:${env:HOME}/.pico-sdk/cmake/v4.3.4/bin:${env:HOME}/.pico-sdk/ninja/v1.13.2:${env:PATH}"
},
"terminal.integrated.env.linux": {
"PICO_SDK_PATH": "${env:HOME}/.pico-sdk/sdk/2.3.0",
"PICO_TOOLCHAIN_PATH": "${env:HOME}/.pico-sdk/toolchain/15_2_Rel1",
"PATH": "${env:HOME}/.pico-sdk/toolchain/15_2_Rel1/bin:${env:HOME}/.pico-sdk/picotool/2.3.0/picotool:${env:HOME}/.pico-sdk/cmake/v4.3.4/bin:${env:HOME}/.pico-sdk/ninja/v1.13.2:${env:PATH}"
},
"raspberry-pi-pico.cmakeAutoConfigure": true,
"raspberry-pi-pico.useCmakeTools": false,
"raspberry-pi-pico.cmakePath": "${HOME}/.pico-sdk/cmake/v4.3.4/bin/cmake",
"raspberry-pi-pico.ninjaPath": "${HOME}/.pico-sdk/ninja/v1.13.2/ninja"
}
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{
"version": "2.0.0",
"tasks": [
{
"label": "Compile Project",
"type": "process",
"isBuildCommand": true,
"command": "${userHome}/.pico-sdk/ninja/v1.13.2/ninja",
"args": ["-C", "${workspaceFolder}/build"],
"group": "build",
"presentation": {
"reveal": "always",
"panel": "dedicated"
},
"problemMatcher": "$gcc",
"windows": {
"command": "${env:USERPROFILE}/.pico-sdk/ninja/v1.13.2/ninja.exe"
}
},
{
"label": "Run Project",
"type": "process",
"command": "${env:HOME}/.pico-sdk/picotool/2.3.0/picotool/picotool",
"args": [
"load",
"${command:raspberry-pi-pico.launchTargetPath}",
"-fx"
],
"presentation": {
"reveal": "always",
"panel": "dedicated"
},
"problemMatcher": [],
"windows": {
"command": "${env:USERPROFILE}/.pico-sdk/picotool/2.3.0/picotool/picotool.exe"
}
},
{
"label": "Flash",
"type": "process",
"command": "${userHome}/.pico-sdk/openocd/0.12.0+dev/openocd.exe",
"args": [
"-s",
"${userHome}/.pico-sdk/openocd/0.12.0+dev/scripts",
"-f",
"raspberrypi-swd.cfg",
"-f",
"target/${command:raspberry-pi-pico.getTarget}.cfg",
"-c",
"adapter speed 5000; program \"${command:raspberry-pi-pico.launchTargetPath}\" verify reset exit"
],
"problemMatcher": [],
"windows": {
"command": "${env:USERPROFILE}/.pico-sdk/openocd/0.12.0+dev/openocd.exe"
}
},
{
"label": "Rescue Reset",
"type": "process",
"command": "${userHome}/.pico-sdk/openocd/0.12.0+dev/openocd.exe",
"args": [
"-s",
"${userHome}/.pico-sdk/openocd/0.12.0+dev/scripts",
"-f",
"raspberrypi-swd.cfg",
"-f",
"target/${command:raspberry-pi-pico.getChip}-rescue.cfg",
"-c",
"adapter speed 5000; reset halt; exit"
],
"problemMatcher": [],
"windows": {
"command": "${env:USERPROFILE}/.pico-sdk/openocd/0.12.0+dev/openocd.exe"
}
},
{
"label": "RISC-V Reset (RP2350)",
"type": "process",
"command": "${userHome}/.pico-sdk/openocd/0.12.0+dev/openocd.exe",
"args": [
"-s",
"${userHome}/.pico-sdk/openocd/0.12.0+dev/scripts",
"-c",
"set USE_CORE { rv0 rv1 cm0 cm1 }",
"-f",
"raspberrypi-swd.cfg",
"-f",
"target/rp2350.cfg",
"-c",
"adapter speed 5000; init;",
"-c",
"write_memory 0x40120158 8 { 0x3 }; echo [format \"Info : ARCHSEL 0x%02x\" [read_memory 0x40120158 8 1]];",
"-c",
"reset halt; targets rp2350.rv0; echo [format \"Info : ARCHSEL_STATUS 0x%02x\" [read_memory 0x4012015C 8 1]]; exit"
],
"problemMatcher": [],
"windows": {
"command": "${env:USERPROFILE}/.pico-sdk/openocd/0.12.0+dev/openocd.exe"
}
}
]
}
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# Generated Cmake Pico project file
cmake_minimum_required(VERSION 3.13)
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Initialise pico_sdk from installed location
if(WIN32)
set(USERHOME $ENV{USERPROFILE})
else()
set(USERHOME $ENV{HOME})
endif()
set(sdkVersion 2.3.0)
set(toolchainVersion 15_2_Rel1)
set(picotoolVersion 2.3.0)
set(picoVscode ${USERHOME}/.pico-sdk/cmake/pico-vscode.cmake)
if (EXISTS ${picoVscode})
include(${picoVscode})
endif()
set(PICO_BOARD pico2 CACHE STRING "Board type")
# Pull in Raspberry Pi Pico SDK
include(pico_sdk_import.cmake)
project(USB-Serial C CXX ASM)
# Initialise the Raspberry Pi Pico SDK
pico_sdk_init()
# Add executable
add_executable(USB-Serial
USB-Serial.cpp
)
pico_set_program_name(USB-Serial "RP2350 USB-UART Adapter")
pico_set_program_version(USB-Serial "1.0")
# Disable stdio over UART/USB so it doesn't conflict with custom CDC
pico_enable_stdio_uart(USB-Serial 0)
pico_enable_stdio_usb(USB-Serial 0)
# Add libraries to the build
target_link_libraries(USB-Serial
pico_stdlib
tinyusb_device
tinyusb_board
hardware_uart
hardware_irq
pico_unique_id
pico_bootsel_via_double_reset
)
# Add include directories
target_include_directories(USB-Serial PRIVATE
${CMAKE_CURRENT_LIST_DIR}
)
pico_add_extra_outputs(USB-Serial)
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#include <stdio.h>
#include <string.h>
#include "pico/stdlib.h"
#include "pico/unique_id.h"
#include "hardware/uart.h"
#include "hardware/irq.h"
#include "hardware/gpio.h"
#include "hardware/clocks.h"
#include "tusb.h"
//--------------------------------------------------------------------+
// UART Configuration
//--------------------------------------------------------------------+
#define UART_ID uart0
#define UART_IRQ UART0_IRQ
#define UART_TX_PIN 0
#define UART_RX_PIN 1
#define DEFAULT_BAUD 115200
// Activity / Heartbeat LED Pin
#define LED_PIN_WS 16
#define LED_PIN_PICO 25
// UART RX Ring Buffer for capture
#define BUFFER_SIZE 4096
static volatile struct {
uint8_t buf[BUFFER_SIZE];
volatile uint32_t head;
volatile uint32_t tail;
} uart_rx_ring;
static inline bool ring_is_empty(void) {
return uart_rx_ring.head == uart_rx_ring.tail;
}
static inline void ring_push(uint8_t c) {
uint32_t next = (uart_rx_ring.head + 1) % BUFFER_SIZE;
if (next != uart_rx_ring.tail) {
uart_rx_ring.buf[uart_rx_ring.head] = c;
uart_rx_ring.head = next;
}
}
static inline uint8_t ring_pop(void) {
uint8_t c = uart_rx_ring.buf[uart_rx_ring.tail];
uart_rx_ring.tail = (uart_rx_ring.tail + 1) % BUFFER_SIZE;
return c;
}
//--------------------------------------------------------------------+
// UART Interrupt Handler
//--------------------------------------------------------------------+
static void on_uart_rx(void) {
while (uart_is_readable(UART_ID)) {
uint8_t ch = (uint8_t)uart_getc(UART_ID);
ring_push(ch);
}
}
//--------------------------------------------------------------------+
// Hardware UART Setup
//--------------------------------------------------------------------+
static void setup_uart(uint32_t baudrate) {
uart_init(UART_ID, baudrate);
gpio_set_function(UART_TX_PIN, GPIO_FUNC_UART);
gpio_set_function(UART_RX_PIN, GPIO_FUNC_UART);
gpio_pull_up(UART_RX_PIN);
uart_set_hw_flow(UART_ID, false, false);
uart_set_format(UART_ID, 8, 1, UART_PARITY_NONE);
uart_set_fifo_enabled(UART_ID, true);
// Set up and enable the interrupt handlers
irq_set_exclusive_handler(UART_IRQ, on_uart_rx);
irq_set_enabled(UART_IRQ, true);
// Enable UART RX interrupt
uart_set_irq_enables(UART_ID, true, false);
}
//--------------------------------------------------------------------+
// USB Descriptors
//--------------------------------------------------------------------+
#define USB_VID 0x2E8A // Raspberry Pi
#define USB_PID 0x000A // Raspberry Pi Pico CDC
#define USB_BCD 0x0200
tusb_desc_device_t const desc_device = {
.bLength = sizeof(tusb_desc_device_t),
.bDescriptorType = TUSB_DESC_DEVICE,
.bcdUSB = USB_BCD,
.bDeviceClass = TUSB_CLASS_MISC,
.bDeviceSubClass = MISC_SUBCLASS_COMMON,
.bDeviceProtocol = MISC_PROTOCOL_IAD,
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
.idVendor = USB_VID,
.idProduct = USB_PID,
.bcdDevice = 0x0100,
.iManufacturer = 0x01,
.iProduct = 0x02,
.iSerialNumber = 0x03,
.bNumConfigurations = 0x01
};
extern "C" uint8_t const *tud_descriptor_device_cb(void) {
return (uint8_t const *) &desc_device;
}
enum {
ITF_NUM_CDC = 0,
ITF_NUM_CDC_DATA,
ITF_NUM_TOTAL
};
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x82
#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
uint8_t const desc_configuration[] = {
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64),
};
extern "C" uint8_t const *tud_descriptor_configuration_cb(uint8_t index) {
(void) index;
return desc_configuration;
}
enum {
STRID_LANGID = 0,
STRID_MANUFACTURER,
STRID_PRODUCT,
STRID_SERIAL,
STRID_CDC_INTERFACE,
};
static char const *string_desc_arr[] = {
(const char[]) { 0x09, 0x04 },
"Waveshare",
"RP2350 USB-UART Adapter",
NULL,
"RP2350 CDC UART",
};
static uint16_t _desc_str[64];
extern "C" uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
(void) langid;
size_t chr_count = 0;
switch (index) {
case STRID_LANGID:
memcpy(&_desc_str[1], string_desc_arr[0], 2);
chr_count = 1;
break;
case STRID_SERIAL: {
pico_unique_board_id_t id;
pico_get_unique_board_id(&id);
char serial_str[2 * PICO_UNIQUE_BOARD_ID_SIZE_BYTES + 1];
pico_get_unique_board_id_string(serial_str, sizeof(serial_str));
chr_count = strlen(serial_str);
if (chr_count > 32) chr_count = 32;
for (size_t i = 0; i < chr_count; i++) {
_desc_str[1 + i] = serial_str[i];
}
break;
}
default: {
if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0]))) {
return NULL;
}
const char *str = string_desc_arr[index];
if (!str) return NULL;
chr_count = strlen(str);
size_t const max_count = sizeof(_desc_str) / sizeof(_desc_str[0]) - 1;
if (chr_count > max_count) chr_count = max_count;
for (size_t i = 0; i < chr_count; i++) {
_desc_str[1 + i] = str[i];
}
break;
}
}
_desc_str[0] = (uint16_t) ((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
return _desc_str;
}
//--------------------------------------------------------------------+
// TinyUSB CDC Callbacks
//--------------------------------------------------------------------+
extern "C" void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts) {
(void) itf;
(void) dtr;
(void) rts;
}
extern "C" void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding) {
(void) itf;
if (p_line_coding->bit_rate > 0) {
uart_set_baudrate(UART_ID, p_line_coding->bit_rate);
}
uint data_bits = (p_line_coding->data_bits >= 5 && p_line_coding->data_bits <= 8)
? p_line_coding->data_bits : 8;
uint stop_bits = (p_line_coding->stop_bits == 2) ? 2 : 1;
uart_parity_t parity = UART_PARITY_NONE;
if (p_line_coding->parity == 1) {
parity = UART_PARITY_ODD;
} else if (p_line_coding->parity == 2) {
parity = UART_PARITY_EVEN;
}
uart_set_format(UART_ID, data_bits, stop_bits, parity);
}
//--------------------------------------------------------------------+
// Main Bridge Task
//--------------------------------------------------------------------+
static void cdc_uart_bridge_task(void) {
// 1. Drain any available hardware UART RX bytes directly into ring buffer
while (uart_is_readable(UART_ID)) {
ring_push((uint8_t)uart_getc(UART_ID));
}
// 2. Forward UART RX -> USB CDC TX
if (!ring_is_empty()) {
uint32_t available = tud_cdc_write_available();
if (available > 0) {
uint8_t tx_buf[64];
uint32_t count = 0;
while (count < sizeof(tx_buf) && count < available && !ring_is_empty()) {
tx_buf[count++] = ring_pop();
}
if (count > 0) {
tud_cdc_write(tx_buf, count);
tud_cdc_write_flush();
}
}
}
// 3. Forward USB CDC RX -> UART TX
if (tud_cdc_available()) {
uint8_t usb_rx_buf[64];
uint32_t count = tud_cdc_read(usb_rx_buf, sizeof(usb_rx_buf));
if (count > 0) {
uart_write_blocking(UART_ID, usb_rx_buf, count);
}
}
}
//--------------------------------------------------------------------+
// Main Entry
//--------------------------------------------------------------------+
int main(void) {
stdio_init_all();
// Initialize Activity LED
gpio_init(LED_PIN_WS);
gpio_set_dir(LED_PIN_WS, GPIO_OUT);
gpio_put(LED_PIN_WS, 0);
#ifdef LED_PIN_PICO
gpio_init(LED_PIN_PICO);
gpio_set_dir(LED_PIN_PICO, GPIO_OUT);
gpio_put(LED_PIN_PICO, 0);
#endif
// Initialize UART0 on GP0 (TX) and GP1 (RX)
setup_uart(DEFAULT_BAUD);
// Initialize TinyUSB Device stack
tusb_init();
uint32_t last_blink = 0;
bool led_state = false;
while (true) {
// Process TinyUSB device events
tud_task();
// Process bidirectional data transfer
cdc_uart_bridge_task();
// Heartbeat blink (toggle every 250ms)
uint32_t now = to_ms_since_boot(get_absolute_time());
if (now - last_blink >= 250) {
last_blink = now;
led_state = !led_state;
gpio_put(LED_PIN_WS, led_state);
#ifdef LED_PIN_PICO
gpio_put(LED_PIN_PICO, led_state);
#endif
}
}
return 0;
}
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# This is a copy of <PICO_SDK_PATH>/external/pico_sdk_import.cmake
# This can be dropped into an external project to help locate this SDK
# It should be include()ed prior to project()
# Copyright 2020 (c) 2020 Raspberry Pi (Trading) Ltd.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
# following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
# disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH))
set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')")
endif ()
if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT))
set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT})
message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')")
endif ()
if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH))
set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH})
message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')")
endif ()
if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_TAG} AND (NOT PICO_SDK_FETCH_FROM_GIT_TAG))
set(PICO_SDK_FETCH_FROM_GIT_TAG $ENV{PICO_SDK_FETCH_FROM_GIT_TAG})
message("Using PICO_SDK_FETCH_FROM_GIT_TAG from environment ('${PICO_SDK_FETCH_FROM_GIT_TAG}')")
endif ()
if (PICO_SDK_FETCH_FROM_GIT AND NOT PICO_SDK_FETCH_FROM_GIT_TAG)
set(PICO_SDK_FETCH_FROM_GIT_TAG "master")
message("Using master as default value for PICO_SDK_FETCH_FROM_GIT_TAG")
endif()
set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK")
set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable")
set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
set(PICO_SDK_FETCH_FROM_GIT_TAG "${PICO_SDK_FETCH_FROM_GIT_TAG}" CACHE FILEPATH "release tag for SDK")
if (NOT PICO_SDK_PATH)
if (PICO_SDK_FETCH_FROM_GIT)
include(FetchContent)
set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR})
if (PICO_SDK_FETCH_FROM_GIT_PATH)
get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}")
endif ()
FetchContent_Declare(
pico_sdk
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
GIT_TAG ${PICO_SDK_FETCH_FROM_GIT_TAG}
)
if (NOT pico_sdk)
message("Downloading Raspberry Pi Pico SDK")
# GIT_SUBMODULES_RECURSE was added in 3.17
if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.17.0")
FetchContent_Populate(
pico_sdk
QUIET
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
GIT_TAG ${PICO_SDK_FETCH_FROM_GIT_TAG}
GIT_SUBMODULES_RECURSE FALSE
SOURCE_DIR ${FETCHCONTENT_BASE_DIR}/pico_sdk-src
BINARY_DIR ${FETCHCONTENT_BASE_DIR}/pico_sdk-build
SUBBUILD_DIR ${FETCHCONTENT_BASE_DIR}/pico_sdk-subbuild
)
else ()
FetchContent_Populate(
pico_sdk
QUIET
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
GIT_TAG ${PICO_SDK_FETCH_FROM_GIT_TAG}
SOURCE_DIR ${FETCHCONTENT_BASE_DIR}/pico_sdk-src
BINARY_DIR ${FETCHCONTENT_BASE_DIR}/pico_sdk-build
SUBBUILD_DIR ${FETCHCONTENT_BASE_DIR}/pico_sdk-subbuild
)
endif ()
set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR})
endif ()
set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE})
else ()
message(FATAL_ERROR
"SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git."
)
endif ()
endif ()
get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
if (NOT EXISTS ${PICO_SDK_PATH})
message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found")
endif ()
set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake)
if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE})
message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK")
endif ()
set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
include(${PICO_SDK_INIT_CMAKE_FILE})
+4
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@@ -0,0 +1,4 @@
adapter driver linuxgpiod
adapter gpio swdio -chip 0 24
adapter gpio swclk -chip 0 25
+71
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@@ -0,0 +1,71 @@
#ifndef _TUSB_CONFIG_H_
#define _TUSB_CONFIG_H_
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// Board Specific Configuration
//--------------------------------------------------------------------+
#ifndef BOARD_TUD_RHPORT
#define BOARD_TUD_RHPORT 0
#endif
#ifndef BOARD_TUD_MAX_SPEED
#define BOARD_TUD_MAX_SPEED OPT_MODE_DEFAULT_SPEED
#endif
//--------------------------------------------------------------------
// Common Configuration
//--------------------------------------------------------------------
#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_DEVICE | OPT_MODE_FULL_SPEED)
#ifndef CFG_TUSB_OS
#define CFG_TUSB_OS OPT_OS_NONE
#endif
#ifndef CFG_TUSB_DEBUG
#define CFG_TUSB_DEBUG 0
#endif
// Enable Device stack
#define CFG_TUD_ENABLED 1
#define CFG_TUD_MAX_SPEED BOARD_TUD_MAX_SPEED
// USB DMA section / alignment
#ifndef CFG_TUSB_MEM_SECTION
#define CFG_TUSB_MEM_SECTION
#endif
#ifndef CFG_TUSB_MEM_ALIGN
#define CFG_TUSB_MEM_ALIGN __attribute__ ((aligned(4)))
#endif
//--------------------------------------------------------------------
// Device Configuration
//--------------------------------------------------------------------
#ifndef CFG_TUD_ENDPOINT0_SIZE
#define CFG_TUD_ENDPOINT0_SIZE 64
#endif
// Class configurations
#define CFG_TUD_CDC 1
#define CFG_TUD_MSC 0
#define CFG_TUD_HID 0
#define CFG_TUD_MIDI 0
#define CFG_TUD_VENDOR 0
// CDC FIFO size of TX and RX
#define CFG_TUD_CDC_RX_BUFSIZE 1024
#define CFG_TUD_CDC_TX_BUFSIZE 1024
// CDC Endpoint transfer buffer size
#define CFG_TUD_CDC_EP_BUFSIZE 64
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_CONFIG_H_ */
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