To reach a high SPI frequency, it is recommended to use a flat ribbon on MB1440 CN8 with all unused signals tied to the ground on the target side. Bridge I2C I2C signals are available on MB1440 CN7 and CN9. The adapter module also provides optional 680 Ω pull-ups, which...
(GPIOA, &GPIO_InitStructure); /* SPI1 NSS pin configuration */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); /* SPI1 SCK pin configuration */ GPIO_...
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; SPI_InitStructure.SPI_BaudRatePrescaler = SPI...
(SPI_FIRSTBIT_MSB, SPI_BAUDRATEPRESCALER_128, SPI_MODE_MASTER, SPI_CLOCKPOLARITY_HIGH, SPI_CLOCKPHASE_2EDGE, SPI_DATADIRECTION_1LINE_TX, SPI_NSS_SOFT, 0x07); SPI_Cmd(ENABLE); /* Configure GPIO used to drive the joystick JOYSTICK_UP --> PB6 JOYSTICK_DOWN --> PB7 JOYSTI...
开发者ID:ProjectZeroSlackr,项目名称:linux-2.4.32-ipod,代码行数:30,代码来源:ivpnss.c 示例4: ixp4xx_i2c_probe ▲点赞 2▼ staticintixp4xx_i2c_probe(struct device *dev){interr;structplatform_device*plat_dev=to_platform_device(dev);structixp4xx_i2c_pins*gpio=plat_dev->dev.platform_data;...
_NSS_SOFT; spi_parameter_structure.endian = SPI_ENDIAN_MSB; spi_crc_polynomial_set(SPI, 7); spi_crc_on(SPI); spi_init(SPI hisysteeoke 2022-12-12 16:36:28 CRC校验的问题 polynomial */ #define CRC_POLYNOMIAL_7B0x65/* X^7 + X^6 + X^5 + X^2 + 1, used in Train Communicatio...
Opening SPI communication interface Note: chip version is 0x00 (v0.0) ERROR: Failed to set SX1250_0 in STANDBY_XOSC mode ERROR: failed to setup radio 0 ERROR: [main] failed to start the concentrator what am i missing?? debian@beaglebone:~/lora/sx1302_hal/packet_forwarder$ ./lora_pkt_...
请教EFM8BB3的SPI接收,为了防止sck上的干扰带来无效的数据位,我需要在一次通讯后对SPI关于位计数的寄存器清空。NSS引脚可能一直会被主控设备拉低。如果SCK上产生一个干扰,就会多一位数据,这一位会一直传递下去。怎样清空这个关于位的计数?SPI0FCN0寄存器上的RFLSH是清空RXFIFO计数,和我想要的这种清空数据位的计数一...
To reach a high SPI frequency, it is recommended to use a flat ribbon on MB1440 CN8 with all unused signals tied to the ground on the target side. Bridge I2C I2C signals are available on MB1440 CN7 and CN9. The adapter module also provides optional 680 Ω pull-ups, which c...
Due to the high dimensionality of TSA problems, redundancies usually exist in the original feature space, which will deteriorate the performance of classification. To effectively eliminate redundancies and obtain the optimal feature set, a new feature reduction method based on neighborhood rough set and...