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This commit is contained in:
Tristan Krause 2019-04-02 16:19:42 +02:00
parent 9414322a19
commit 4d2ea6013c
8 changed files with 360 additions and 348 deletions
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36
firmware/usart.h
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@ -11,8 +11,6 @@ class USART;
#include "requests.h"
typedef void (*handler_t)(void);
enum BlockSequence
{
IDLE = 0,
@ -25,53 +23,51 @@ enum BlockSequence
class USART
{
public:
void init(handler_t handler) volatile;
void clearInputBuffer(void) volatile;
// Steuerung
void init(void) volatile;
void clearInputBuffer(void) volatile;
void initRX(void) volatile;
void initTX(void) volatile;
void handleRX(void) volatile;
void handleTX(void) volatile;
void flush(void) volatile;
// Sendefunktionen
void writeByte(uint8_t) volatile;
void writeInt(uint16_t) volatile;
void writeStr(const char*, uint8_t) volatile;
// Empfangsfunktionen
uint8_t readByte(void) volatile;
uint16_t readInt(void) volatile;
// NEU
void handleRX(void) volatile;
void handleTX(void) volatile;
void initRX(void) volatile;
void initTX(void) volatile;
void flush(void) volatile;
// Blockgedöns
void nextByte(uint8_t byte) volatile;
uint8_t writeBlock(uint8_t*, uint8_t) volatile;
void readBlock(uint8_t*, uint8_t) volatile;
constexpr static uint8_t MSG_OK = 0xFF;
constexpr static uint8_t MSG_FAIL = 0xFE;
uint8_t block_pos = 0;
// constants
constexpr static uint8_t MSG_OK = 0xFF;
constexpr static uint8_t MSG_FAIL = 0xFE;
constexpr static uint32_t BAUDRATE = 115200; // 38400
constexpr static uint8_t CRC7_POLY = 0x91;
constexpr static uint8_t MAX_BLOCK_SIZE = 64;
constexpr static uint8_t BLOCK_END = 0x80;
volatile uint8_t send_buffer[128];
private:
static handler_t receive_handler;
uint8_t block_buffer[MAX_BLOCK_SIZE + 3]; // don't store BLOCK_END byte
uint8_t crc;
BlockSequence seq = BlockSequence::IDLE;
volatile uint8_t receive_buffer[32];
volatile uint8_t receive_buffer[128];
volatile uint8_t receive_pos;
volatile uint8_t send_buffer[128];
volatile uint8_t send_pos;
volatile uint8_t send_len;
volatile bool send_active;