stm32_serDes_protobuf_project/app/app.c

42 lines
1.0 KiB
C

#include "app.h"
#include <pb_encode.h>
#include <pb_decode.h>
#include "simple.pb.h"
#define SER_BUF_SIZE 128
uint8_t ser_buffer[SER_BUF_SIZE];
uint8_t serialize(uint8_t* buffer, size_t* len) {
size_t message_length = 0;
bool status = 0;
static uint32_t cnt = 0;
SimpleMessage message = SimpleMessage_init_zero;
/* Create a stream that will write to our buffer. */
pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
/* Fill in the lucky number */
message.number = cnt++;
/* Now we are ready to encode the message! */
status = pb_encode(&stream, SimpleMessage_fields, &message);
*len = stream.bytes_written;
/* Then just check for any errors.. */
if (!status)
{
printf("Encoding failed: %s\n", PB_GET_ERROR(&stream));
return 1;
}
return 0;
}
void sendData(sd_callback_t send_data_callback) {
size_t ser_len = 0;
serialize(ser_buffer, &ser_len);
send_data_callback(ser_buffer, ser_len);
}