* \brief Disable SPI. * * \note CS is de-asserted, which indicates that the last data is done, and user * should check TX_EMPTY before disabling SP

* \brief Disable Mode Fault Detection. * * \param p_spi Pointer to an SPI instance. */

* \brief Enable SPI clock. * * \param p_spi Pointer to an SPI instance. */

* @fn spi_flash_write * @brief Proram SPI flash * @param[IN] pu8Buf * Pointer to data buffer * @param[IN] u32Offset * Address to write to a

* @fn spi_flash_write_enable * @brief Send write enable command to SPI flash * @return Status of execution * @note Compatible with MX25L6465E and

* \brief Check if all transmissions are ready. * * \param p_spi Pointer to an SPI instance. * * \retval 1 if transmissions are complete. * \retva

* \brief Set Serial Clock Baud Rate divider value (SCBR). * * \param p_spi Pointer to an SPI instance. * \param ul_pcs_ch Peripheral Chip Select ch

* \brief Set number of bits per transfer. * * \param p_spi Pointer to an SPI instance. * \param ul_pcs_ch Peripheral Chip Select channel (0~3). *

* \brief Set Data Capture Phase. * * \param p_spi Pointer to an SPI instance. * \param ul_pcs_ch Peripheral Chip Select channel (0~3). * \param

* \brief Set clock default state. * * \param p_spi Pointer to an SPI instance. * \param ul_pcs_ch Peripheral Chip Select channel (0~3). * \param u

* \brief Set SPI to Master mode. * * \param p_spi Pointer to an SPI instance. */

* \brief Configure timing for SPI transfer. * * \param p_spi Pointer to an SPI instance. * \param ul_pcs_ch Peripheral Chip Select channel (0~3).

* \brief Return the current rate in Hz of the CPU clock * * \todo This function assumes that the CPU always runs at the system * clock frequency. W

time to gps time ------------------------------------------------------------ * convert gtime_t struct to week and tow in gps time * args : gtime_t

* Lock sleep mode for VBus PIO pin change detection */

* \brief Read from USART Receive Holding Register. * Before reading user should check if rx is ready. * * \param p_usart Pointer to a USART instanc

* \brief Initializes the Usart in master mode. * * \param p_usart Base address of the USART instance. * \param opt Options needed to set up R

* \brief Disable interrupt with mask on the relevant channel of given XDMA. * * \param[out] xdmac Module hardware register base address pointer. *

* @brief Insert KeyFrame in the map * @param pKF KeyFrame */

Queries whether this represents text using a CDATA section.

* This will extract euler angles from a direction cosine matrix in the * standard rotation sequence. * [phi][theta][psi] from NED to body frame *

分配特征点

* @brief Erase MapPoint from the map * @param pMP MapPoint */

Returns number of bytes read, or -1 for error

Reset