wideband/firmware/can_helper.cpp

31 lines
765 B
C++

#include "can_helper.h"
#include <cstring>
// manualy rotate mailboxes on GD32
static int can1_mailbox = 1;
CanTxMessage::CanTxMessage(uint32_t eid, uint8_t dlc, bool isExtended) {
m_frame.IDE = isExtended ? CAN_IDE_EXT : CAN_IDE_STD;
m_frame.EID = eid;
m_frame.RTR = CAN_RTR_DATA;
m_frame.DLC = dlc;
memset(m_frame.data8, 0, sizeof(m_frame.data8));
}
CanTxMessage::~CanTxMessage() {
// 100 ms timeout
canTransmitTimeout(&CAND1, can1_mailbox, &m_frame, TIME_MS2I(100));
// GD32 workaround: rotate mailboxes
// Does not affect STM32 devices
can1_mailbox++;
if (can1_mailbox == CAN_TX_MAILBOXES) {
can1_mailbox = 1;
}
}
uint8_t& CanTxMessage::operator[](size_t index) {
return m_frame.data8[index];
}