The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Dependents: hello SerialTestv11 SerialTestv12 Sierpinski ... more
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Diff: hal/spi_api.h
- Revision:
- 148:fd96258d940d
- Parent:
- 145:64910690c574
diff -r a97add6d7e64 -r fd96258d940d hal/spi_api.h --- a/hal/spi_api.h Wed Jul 19 16:46:19 2017 +0100 +++ b/hal/spi_api.h Thu Aug 03 13:37:00 2017 +0100 @@ -33,6 +33,7 @@ #define SPI_EVENT_INTERNAL_TRANSFER_COMPLETE (1 << 30) // Internal flag to report that an event occurred #define SPI_FILL_WORD (0xFFFF) +#define SPI_FILL_CHAR (0xFF) #if DEVICE_SPI_ASYNCH /** Asynch SPI HAL structure @@ -122,16 +123,17 @@ * tx_length and rx_length. The bytes written will be padded with the * value 0xff. * - * @param[in] obj The SPI peripheral to use for sending - * @param[in] tx_buffer Pointer to the byte-array of data to write to the device - * @param[in] tx_length Number of bytes to write, may be zero - * @param[in] rx_buffer Pointer to the byte-array of data to read from the device - * @param[in] rx_length Number of bytes to read, may be zero + * @param[in] obj The SPI peripheral to use for sending + * @param[in] tx_buffer Pointer to the byte-array of data to write to the device + * @param[in] tx_length Number of bytes to write, may be zero + * @param[in] rx_buffer Pointer to the byte-array of data to read from the device + * @param[in] rx_length Number of bytes to read, may be zero + * @param[in] write_fill Default data transmitted while performing a read * @returns * The number of bytes written and read from the device. This is * maximum of tx_length and rx_length. */ -int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length, char *rx_buffer, int rx_length); +int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length, char *rx_buffer, int rx_length, char write_fill); /** Check if a value is available to read *