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stmbl/shared/stmbl_talk.h
2018-04-07 01:36:17 +02:00

29 lines
805 B
C

#pragma once
#include <stdint.h>
#pragma pack(push, 1)
typedef struct {
uint32_t crc; // can be 0 for eth comm
uint8_t slave_addr; // calc from uid, overwrite in config
uint8_t len; // #data in byte
uint8_t conf_addr;
struct {
enum stmbl_talk_cmd_t {
NO_CMD,
WRITE_CONF, // conf[rx.header.conf_addr] = rx.header.config.u32, tx.header.config.u32 = conf[tx.header.conf_addr++]
READ_CONF, // tx.header.config.u32 = conf[rx.header.conf_addr]
DO_RESET,
BOOTLOADER,
// ENABLE,
// DISABLE, // proc / conf data = default
} cmd : 4;
uint8_t counter : 4; // packet counter, mosi: ++, miso: same as request
} flags;
union {
float f32;
uint32_t u32;
int32_t i32;
} config;
} stmbl_talk_header_t;
#pragma pack(pop)