rts-sim-testing-service/third_party/message/can_btm_data.go
2023-11-21 17:20:03 +08:00

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package message
//数据帧0x80+扩展类型),一个CAN帧只能存储8个字节对于一个应答器报文分片到多个CAN数据帧中
// BtmDataMessageFrame 数据帧-应答器报文
// offset = [0x00,0x0c] 共13个即可用于存储应答器报文的共104个字节
type BtmDataMessageFrame struct {
//帧ID
FId CanFrameId
//8字节,应答器报文片段
Message []byte
}
func NewBtmDataMessageFrame(sn byte, offset byte) *BtmDataMessageFrame {
return &BtmDataMessageFrame{
FId: *NewCanFrameId(CAN_ADDR_RSP_ATP, CAN_ADDR_RSP_BTM, 0x80+offset, sn),
}
}
func (f *BtmDataMessageFrame) Encode() *CanetFrame {
cf := &CanetFrame{}
cf.CanId = f.FId
cf.CanLen = 8
cf.FF = true
cf.RTR = false
//
writer := NewCanBitsWriter(8)
//
for _, data := range f.Message {
writer.AddByte(data)
}
cf.CanData = writer.(CanBusData).GetData()
//
return cf
}
func (f *BtmDataMessageFrame) Decode(cf *CanetFrame) bool {
f.FId = cf.CanId
//
reader := NewCanBitsReader(cf.CanData, 8)
//
f.Message = make([]byte, 0, 8)
for c := 0; c < 8; c++ {
data, ok := reader.ReadByte()
if !ok {
return false
}
f.Message = append(f.Message, data)
}
//
return true
}
/////////////////////////////////////////////////////
// BtmDataMessageTimeAFrame 数据帧-时间戳A
// offset = 0x0d
type BtmDataMessageTimeAFrame struct {
//帧ID
FId CanFrameId
//时间戳A
TimeA uint32
//CRC
Crc32A uint32
}
func NewBtmDataMessageTimeAFrame(sn byte) *BtmDataMessageTimeAFrame {
return &BtmDataMessageTimeAFrame{
FId: *NewCanFrameId(CAN_ADDR_RSP_ATP, CAN_ADDR_RSP_BTM, 0x80+0x0d, sn),
}
}
func (f *BtmDataMessageTimeAFrame) Encode() *CanetFrame {
cf := &CanetFrame{}
cf.CanId = f.FId
cf.CanLen = 8
cf.FF = true
cf.RTR = false
//
writer := NewCanBitsWriter(8)
//
byteMsk := uint32(0x00_00_00_ff)
//
writer.AddByte(byte((f.TimeA >> 24) & byteMsk))
writer.AddByte(byte((f.TimeA >> 16) & byteMsk))
writer.AddByte(byte((f.TimeA >> 8) & byteMsk))
writer.AddByte(byte(f.TimeA & byteMsk))
//
writer.AddByte(byte((f.Crc32A >> 24) & byteMsk))
writer.AddByte(byte((f.Crc32A >> 16) & byteMsk))
writer.AddByte(byte((f.Crc32A >> 8) & byteMsk))
writer.AddByte(byte(f.Crc32A & byteMsk))
//
cf.CanData = writer.(CanBusData).GetData()
//
return cf
}
func (f *BtmDataMessageTimeAFrame) Decode(cf *CanetFrame) bool {
f.FId = cf.CanId
//
reader := NewCanBitsReader(cf.CanData, 8)
//
f.TimeA = 0
a1, a1Ok := reader.ReadByte()
if !a1Ok {
return false
}
f.TimeA |= uint32(a1) << 24
//
a2, a2Ok := reader.ReadByte()
if !a2Ok {
return false
}
f.TimeA |= uint32(a2) << 16
//
a3, a3Ok := reader.ReadByte()
if !a3Ok {
return false
}
f.TimeA |= uint32(a3) << 8
//
a4, a4Ok := reader.ReadByte()
if !a4Ok {
return false
}
f.TimeA |= uint32(a4)
//
f.Crc32A = 0
c1, c1Ok := reader.ReadByte()
if !c1Ok {
return false
}
f.Crc32A |= uint32(c1) << 24
//
c2, c2Ok := reader.ReadByte()
if !c2Ok {
return false
}
f.Crc32A |= uint32(c2) << 16
//
c3, c3Ok := reader.ReadByte()
if !c3Ok {
return false
}
f.Crc32A |= uint32(c3) << 8
//
c4, c4Ok := reader.ReadByte()
if !c4Ok {
return false
}
f.Crc32A |= uint32(c4)
//
return true
}
//////////////////////////////////////////////////////////
// BtmDataMessageTimeBFrame 数据帧-时间戳B
// offset = 0x0e
type BtmDataMessageTimeBFrame struct {
//帧ID
FId CanFrameId
//时间戳B
TimeB uint32
//CRC
Crc32B uint32
}
func NewBtmDataMessageTimeBFrame(sn byte) *BtmDataMessageTimeBFrame {
return &BtmDataMessageTimeBFrame{
FId: *NewCanFrameId(CAN_ADDR_RSP_ATP, CAN_ADDR_RSP_BTM, 0x80+0x0e, sn),
}
}
func (f *BtmDataMessageTimeBFrame) Encode() *CanetFrame {
cf := &CanetFrame{}
cf.CanId = f.FId
cf.CanLen = 8
cf.FF = true
cf.RTR = false
//
writer := NewCanBitsWriter(8)
//
byteMsk := uint32(0x00_00_00_ff)
//
writer.AddByte(byte((f.TimeB >> 24) & byteMsk))
writer.AddByte(byte((f.TimeB >> 16) & byteMsk))
writer.AddByte(byte((f.TimeB >> 8) & byteMsk))
writer.AddByte(byte(f.TimeB & byteMsk))
//
writer.AddByte(byte((f.Crc32B >> 24) & byteMsk))
writer.AddByte(byte((f.Crc32B >> 16) & byteMsk))
writer.AddByte(byte((f.Crc32B >> 8) & byteMsk))
writer.AddByte(byte(f.Crc32B & byteMsk))
//
cf.CanData = writer.(CanBusData).GetData()
//
return cf
}
func (f *BtmDataMessageTimeBFrame) Decode(cf *CanetFrame) bool {
f.FId = cf.CanId
//
reader := NewCanBitsReader(cf.CanData, 8)
//
f.TimeB = 0
a1, a1Ok := reader.ReadByte()
if !a1Ok {
return false
}
f.TimeB |= uint32(a1) << 24
//
a2, a2Ok := reader.ReadByte()
if !a2Ok {
return false
}
f.TimeB |= uint32(a2) << 16
//
a3, a3Ok := reader.ReadByte()
if !a3Ok {
return false
}
f.TimeB |= uint32(a3) << 8
//
a4, a4Ok := reader.ReadByte()
if !a4Ok {
return false
}
f.TimeB |= uint32(a4)
//
f.Crc32B = 0
c1, c1Ok := reader.ReadByte()
if !c1Ok {
return false
}
f.Crc32B |= uint32(c1) << 24
//
c2, c2Ok := reader.ReadByte()
if !c2Ok {
return false
}
f.Crc32B |= uint32(c2) << 16
//
c3, c3Ok := reader.ReadByte()
if !c3Ok {
return false
}
f.Crc32B |= uint32(c3) << 8
//
c4, c4Ok := reader.ReadByte()
if !c4Ok {
return false
}
f.Crc32B |= uint32(c4)
//
return true
}
////////////////////////////////////////////////////////////
// BtmDataMessageEndFrame 数据帧-结束
// offset = 0x7f
type BtmDataMessageEndFrame struct {
//帧ID
FId CanFrameId
//TK time B
TkB uint32
//CRC32C校验包含对状态应答帧与数据帧的总校验总共为8×17-4=132字节4-即Crc32C
//1个状态应答帧 + 13个BtmDataMessageFrame + 1个BtmDataMessageTimeAFrame + 1个BtmDataMessageTimeBFrame + 1个BtmDataMessageEndFrame
Crc32C uint32
}
func NewBtmDataMessageEndFrame(sn byte) *BtmDataMessageEndFrame {
return &BtmDataMessageEndFrame{
FId: *NewCanFrameId(CAN_ADDR_RSP_ATP, CAN_ADDR_RSP_BTM, 0x80+0x7f, sn),
}
}
func (f *BtmDataMessageEndFrame) Encode() *CanetFrame {
cf := &CanetFrame{}
cf.CanId = f.FId
cf.CanLen = 8
cf.FF = true
cf.RTR = false
//
writer := NewCanBitsWriter(8)
//
byteMsk := uint32(0x00_00_00_ff)
//
writer.AddByte(byte((f.TkB >> 24) & byteMsk))
writer.AddByte(byte((f.TkB >> 16) & byteMsk))
writer.AddByte(byte((f.TkB >> 8) & byteMsk))
writer.AddByte(byte(f.TkB & byteMsk))
//
writer.AddByte(byte((f.Crc32C >> 24) & byteMsk))
writer.AddByte(byte((f.Crc32C >> 16) & byteMsk))
writer.AddByte(byte((f.Crc32C >> 8) & byteMsk))
writer.AddByte(byte(f.Crc32C & byteMsk))
//
cf.CanData = writer.(CanBusData).GetData()
//
return cf
}
func (f *BtmDataMessageEndFrame) Decode(cf *CanetFrame) bool {
f.FId = cf.CanId
//
reader := NewCanBitsReader(cf.CanData, 8)
//
f.TkB = 0
a1, a1Ok := reader.ReadByte()
if !a1Ok {
return false
}
f.TkB |= uint32(a1) << 24
//
a2, a2Ok := reader.ReadByte()
if !a2Ok {
return false
}
f.TkB |= uint32(a2) << 16
//
a3, a3Ok := reader.ReadByte()
if !a3Ok {
return false
}
f.TkB |= uint32(a3) << 8
//
a4, a4Ok := reader.ReadByte()
if !a4Ok {
return false
}
f.TkB |= uint32(a4)
//
f.Crc32C = 0
c1, c1Ok := reader.ReadByte()
if !c1Ok {
return false
}
f.Crc32C |= uint32(c1) << 24
//
c2, c2Ok := reader.ReadByte()
if !c2Ok {
return false
}
f.Crc32C |= uint32(c2) << 16
//
c3, c3Ok := reader.ReadByte()
if !c3Ok {
return false
}
f.Crc32C |= uint32(c3) << 8
//
c4, c4Ok := reader.ReadByte()
if !c4Ok {
return false
}
f.Crc32C |= uint32(c4)
//
return true
}
// 32位时间戳转换成字节数组
// 大端模型
func canTimeToBytes(ts uint32) []byte {
rt := make([]byte, 0, 4)
byteMsk := uint32(0x00_00_00_ff)
rt = append(rt, byte((ts>>24)&byteMsk))
rt = append(rt, byte((ts>>16)&byteMsk))
rt = append(rt, byte((ts>>8)&byteMsk))
rt = append(rt, byte(ts&byteMsk))
return rt
}