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Data structure to hold SPI settings for all system device types. More...
#include <common.h>
Public Attributes | |
| uint8_t | chipSelectIndex |
| valid 1~8 | |
| uint8_t | writeBitPolarity |
| the level of the write bit of a SPI write instruction word, value is inverted for SPI read operation | |
| uint8_t | longInstructionWord |
| 1 = 16bit instruction word, 0 = 8bit instruction word | |
| uint8_t | MSBFirst |
| 1 = MSBFirst, 0 = LSBFirst | |
| uint8_t | CPHA |
| clock phase, sets which clock edge the data updates (valid 0 or 1) | |
| uint8_t | CPOL |
| clock polarity 0 = clock starts low, 1 = clock starts high | |
| uint8_t | enSpiStreaming |
| Not implemented. SW feature to improve SPI throughput. | |
| uint8_t | autoIncAddrUp |
| Not implemented. For SPI Streaming, set address increment direction. 1= next addr = addr+1, 0:addr = addr-1. | |
| uint8_t | fourWireMode |
| 1: Use 4-wire SPI, 0: 3-wire SPI (SDIO pin is bidirectional). NOTE: ADI's FPGA platform always uses 4-wire mode. | |
| uint32_t | spiClkFreq_Hz |
| SPI Clk frequency in Hz (default 25000000), platform will use next lowest frequency that it's baud rate generator can create */. | |
Data structure to hold SPI settings for all system device types.
| uint8_t spiSettings_t::autoIncAddrUp |
Not implemented. For SPI Streaming, set address increment direction. 1= next addr = addr+1, 0:addr = addr-1.
| uint8_t spiSettings_t::chipSelectIndex |
valid 1~8
| uint8_t spiSettings_t::CPHA |
clock phase, sets which clock edge the data updates (valid 0 or 1)
| uint8_t spiSettings_t::CPOL |
clock polarity 0 = clock starts low, 1 = clock starts high
| uint8_t spiSettings_t::enSpiStreaming |
Not implemented. SW feature to improve SPI throughput.
| uint8_t spiSettings_t::fourWireMode |
1: Use 4-wire SPI, 0: 3-wire SPI (SDIO pin is bidirectional). NOTE: ADI's FPGA platform always uses 4-wire mode.
| uint8_t spiSettings_t::longInstructionWord |
1 = 16bit instruction word, 0 = 8bit instruction word
| uint8_t spiSettings_t::MSBFirst |
1 = MSBFirst, 0 = LSBFirst
| uint32_t spiSettings_t::spiClkFreq_Hz |
SPI Clk frequency in Hz (default 25000000), platform will use next lowest frequency that it's baud rate generator can create */.
| uint8_t spiSettings_t::writeBitPolarity |
the level of the write bit of a SPI write instruction word, value is inverted for SPI read operation