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看dmesg, 你的AR.Drone主板上UART串口芯片坏了.
你的dmesg片段:
- [ 1.269147] i2c /dev entries driver
- [ 1.270237] sdhci: Secure Digital Host Controller Interface driver
- [ 1.270268] sdhci: Copyright(c) Pierre Ossman
- [ 1.271946] parrot5-i2cm parrot5-i2cm.0: controller probe successfully
- [ 1.273520] parrot5-i2cm parrot5-i2cm.1: controller probe successfully
- [ 1.275425] camera 0-0: P6 camif driver attached to camera 0
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没有检测到UART串口设备.
正常的dmesg片段:
- [ 1.386558] i2c /dev entries driver
- [ 1.387697] sdhci: Secure Digital Host Controller Interface driver
- [ 1.387729] sdhci: Copyright(c) Pierre Ossman
- [ 1.387751] Serial: Parrot5/5+ UART driver $Revision: 1.19 $
- [ 1.387985] parrot5-uart.0: ttyPA0 at MMIO 0xd0070000 (irq = 5) is a PARROT5
- [ 1.388047] console [ttyPA0] enabled
- [ 1.470090] parrot5-uart.2: ttyPA2 at MMIO 0xd0090000 (irq = 7) is a PARROT5
- [ 1.471593] parrot5-uart.1: ttyPA1 at MMIO 0xd0080000 (irq = 6) is a PARROT5
- [ 1.473209] DCC: JTAG1 Serial emulation driver driver $Revision: 1.9 $
- [ 1.473306] ttyJ0 at MMIO 0x12345678 (irq = 28) is a DCC
- [ 1.476041] parrot5-i2cm parrot5-i2cm.0: controller probe successfully
- [ 1.477600] parrot5-i2cm parrot5-i2cm.1: controller probe successfully
- [ 1.479484] camera 0-0: P6 camif driver attached to camera 0
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其中ttyPA0串口是在AR.Drone下方那个USB口里的4&6针脚.
估计是你在USB刷机时接错过线, 把串口芯片烧坏了! |
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