思路我理了理是这样: GPIO INT EVT-->SPI1 TX DMA,使用的CC1和TC1 因发带来收:SPI1 RX EVT-->SPI1 RX DMA,使用的CC0和TC0 最早时我担心直接连续发送或接收可能会导致因TX/RX busy带来数据被覆盖的问题,所以使用了link,然后搞不定。 后来在e2e.ti.com/上看到有类似的问题,直接采用STATIC发送和接收(S...
If you are forced in a position where Rx and Tx interfaces must be placed next to each other, then there is a simple solution where traces can be routed on multiple layers. Keep the Tx copper on the top side of the board (microstrip), and route the Rx on the inner side of the boa...
if(spi_drv->spi_dma_flag&(SPI_USING_TX_DMA_FLAG|SPI_USING_RX_DMA_FLAG)) { /* blocking the thread,and the other tasks can run */ rt_completion_wait(&spi_drv->cpt,RT_WAITING_FOREVER); if(rt_completion_wait(&spi_drv->cpt,1000)!=RT_EOK) ...
spidev_test -D /dev/spidev1.0 注意:在使用mm命令前要确保整个系统已经编译过了 。 130|nanopc-t4:/system/bin $ spidev_test.test -D /dev/spidev1.0 spi mode: 0x0 bits per word: 8 max speed: 500000 Hz (500 KHz) RX | FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF F...
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/853679/tm4c1294kcpdt-conflict-between-example-code-pin-configuration-and-hardware-definition-of-spi-rx-and-tx-on-port...
嗨,團隊, 我正在嘗試運行以下示例代碼,而不會在 Tc399 三板 EVK 上進行任何更改: https://www.infineon.com/dgdl/Infineon-ASCLIN_SPI_Master_1_KIT_TC397_TFT-Training-v01_02-EN.pdf?file... 根據培訓文檔的第 8 頁,我應該能夠看到數據移動到 Rx 緩衝區。 但是,一旦傳輸完成,我只能看到 " 0xFF " ...
(or the first). When you have influence on the protocol I would suggest to send a lead-in ...
Change the driver behavior so that if the provided RX buffer set is bigger than the TX buffer, we will read all the RX buffer and fill the TX with NOPs. The SPI driver API does not say to do this, and my original interpretation of the API was that the TX length controls the entire...
15 Jan 2024 In response to Dschunke Hi @Dschunke You can check the example SPI_CPU_1for KIT_AURIX_TC397_TFT where the QSPI module is used to configure two SPI channels as Master and Slave, and shows how to send and receive data.Best Regards. Like 462 0 对...
ad9361 是一款出色的芯片,但它20us左右的最小TDD收发切换时间对于 WiFi SIFS要求的10us/16us是远远不够的。可以使用相同Tx/Rx频率的FDD模式实现零收发切换时间,但是自干扰(非Tx时间内)会导致灵敏度很差。 openwifi 实现了一个“完美”方案,在实现极短切换时间(<1us)的同时不牺牲 OTA 灵敏度。我们通过spi接口...