518bc054c4
Serial uploader was crashing the Pico when launching games because it accessed SD card (SPI) while Core 1 was refreshing display (also SPI). Display and SD card share the same SPI bus and cannot be accessed simultaneously. Split game launch into prepare and execute phases: - prepare: Re-scan games directory (safe, SD access done immediately) - execute: Load Lua script from SD (deferred until display is idle) Main loop now checks !is_refresh_in_progress() before completing launch, preventing SPI conflicts. Also updated SD card best practices skill to document SPI bus contention as the #1 most critical issue to avoid. Co-Authored-By: Claude <noreply@anthropic.com>
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#ifndef SERIAL_UPLOADER_H
|
|
#define SERIAL_UPLOADER_H
|
|
|
|
#include <cstdint>
|
|
#include "ff.h"
|
|
|
|
class GameLauncher;
|
|
|
|
class SerialUploader {
|
|
public:
|
|
SerialUploader(GameLauncher* launcher);
|
|
|
|
// Process incoming serial data (call this frequently in main loop)
|
|
// Returns true if a game was launched
|
|
bool process();
|
|
|
|
// Check if uploader wants to launch a game (after upload complete)
|
|
bool wants_to_launch_game() const { return state == LAUNCHING_GAME; }
|
|
|
|
// Complete the game launch (call only when safe - no display refresh in progress)
|
|
// Returns true if launch succeeded
|
|
bool complete_launch();
|
|
|
|
// Get the filename of the last uploaded game (without .lua extension)
|
|
const char* get_last_uploaded_filename() const { return last_uploaded_name; }
|
|
|
|
private:
|
|
enum State {
|
|
IDLE,
|
|
RECEIVING_FILENAME,
|
|
RECEIVING_SIZE,
|
|
RECEIVING_DATA,
|
|
WRITING_FILE,
|
|
LAUNCHING_GAME
|
|
};
|
|
|
|
State state;
|
|
GameLauncher* game_launcher;
|
|
|
|
// Upload state
|
|
char filename[64];
|
|
char last_uploaded_name[64]; // Game name without .lua extension
|
|
uint32_t file_size;
|
|
uint32_t bytes_received;
|
|
uint8_t* file_buffer;
|
|
|
|
// Base64 decoding buffer
|
|
char base64_buffer[4];
|
|
int base64_index;
|
|
|
|
// Helper methods
|
|
void reset();
|
|
bool write_file_to_sd();
|
|
void launch_game();
|
|
uint8_t decode_base64_char(char c);
|
|
void decode_base64_block(const char* input, uint8_t* output);
|
|
};
|
|
|
|
#endif // SERIAL_UPLOADER_H
|