2x beaglebone black 微控制器和 nrf24l01 连接不起作用

Question

我正在尝试使用 nrf24l01 在两个 BBB 之间建立连接。 我希望我正确设置了所有内容（但我不太确定），我使用了本教程https://electron14.com/?p=404 和此代码：RF24/librf24-bbb/librf24，并进行了一些自我调查。 pingtest 的结果是：

./pingtest

RF24/examples/pingpair/
ROLE: Ping out
- gpio.cpp RF24::begin end fun
STATUS           = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0
RX_ADDR_P0-1     = 0xf0f0f0f0e1 0xf0f0f0f0d2
RX_ADDR_P2-5     = 0xc3 0xc4 0xc5 0xc6
TX_ADDR          = 0xf0f0f0f0e1
RX_PW_P0-6       = 0x20 0x20 0x00 0x00 0x00 0x00
EN_AA            = 0x00
EN_RXADDR        = 0x03
RF_CH            = 0x4c
RF_SETUP         = 0x27
CONFIG           = 0x0f
DYNPD/FEATURE    = 0x00 0x00
Data Rate        = 250KBPS
Model            = nRF24L01+
CRC Length       = 16 bits
PA Power         = PA_HIGH
Now sending 23...ok...Failed, response timed out.
Now sending 1231...ok...Failed, response timed out.
Now sending 2441...ok...Failed, response timed out.
Now sending 3649...ok...Failed, response timed out.
Now sending 4859...ok...Failed, response timed out.
Now sending 6071...ok...Failed, response timed out.

和其他 BBB pongtest ./pongtest

RF24/examples/pingpair/
ROLE: Pong back
STATUS           = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0
RX_ADDR_P0-1     = 0xf0f0f0f0d2 0xf0f0f0f0e1
RX_ADDR_P2-5     = 0xc3 0xc4 0xc5 0xc6
TX_ADDR          = 0xf0f0f0f0d2
RX_PW_P0-6       = 0x20 0x20 0x00 0x00 0x00 0x00
EN_AA            = 0x00
EN_RXADDR        = 0x03
RF_CH            = 0x4c
RF_SETUP         = 0x27
CONFIG           = 0x0f
DYNPD/FEATURE    = 0x00 0x00
Data Rate        = 250KBPS
Model            = nRF24L01+
CRC Length       = 16 bits
PA Power         = PA_HIGH

有人可以帮助我吗？

Answer 1

根据您的数据，两个设备的状态寄存器值0x0e，正在清除lsb；该位设置设备的方向，Tx (0) 或 Rx (1)。根据每块板的状态寄存器被清除，您将它们都设置为发射器。