XModemInit is to init XModem receiver in MAC
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| 315 | |
| 316 | // XModemInit is to init XModem receiver in MAC |
| 317 | func (m *Mac) XModemInit() error { |
| 318 | _, err := m.Write([]byte(cmdUpgrade)) |
| 319 | if err != nil { |
| 320 | return err |
| 321 | } |
| 322 | b := make([]byte, 2) |
| 323 | n, err := m.port.Read(b) |
| 324 | if err != nil { |
| 325 | return err |
| 326 | } |
| 327 | if n == 0 || b[0] != 'C' { |
| 328 | return fmt.Errorf("device doesn't wait for XModem transfer") |
| 329 | } |
| 330 | return nil |
| 331 | } |
| 332 | |
| 333 | // XModemDone is to check the result of XModem transmission |
| 334 | func (m *Mac) XModemDone() error { |