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FTC_STATUS
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SPI_SetGPIOs
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(FTC_HANDLE ftHandle, PFTC_CHIP_SELECT_PINS pChipSelectsDisableStates, PFTC_INPUT_OUTPUT_PINS pHighInputOutputPinsData)
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Parameters
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ftHandle
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Handle of the device.
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pChipSelectsDisableStates
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Pointer to a structure that contains the disable states for the 5 chip select pins of the FT2232C.
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pHighInputOutputPinsData
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Pointer to a structure that contains the data that is used to control the upper 4 GPIO pins of the FT2232C.
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Return Value
FTC_SUCCESS if successful, otherwise the return value is one of the following FTC error codes:
FTC_INVALID_HANDLE
FTC_NULL_INPUT_OUTPUT_BUFFER_POINTER
FTC_FAILED_TO_COMPLETE_COMMAND
FTC_IO_ERROR
Remarks
This function provides complete control over the state of the 4 upper general purpose input/output (GPIO) pins (ACBUS 0 - ACBUS3). They can be configured to be inputs, low outputs or high outputs. The state of the pins can be read using the SPI_GetGPIOs function.
This function is also used to set the disabled states for the chip select pins (ADBUS3 - ADBUS7).
The definitions of FTC_CHIP_SELECT_PINS and FTC_INPUT_OUTPUT_PINS structures are given in the Appendix.
Example
FTC_STATUS Status = FTC_SUCCESS;
FTC_HANDLE ftHandle;
FTC_CHIP_SELECT_PINS ChipSelectsDisableStates;
FTC_INPUT_OUTPUT_PINS HighInputOutputPins;
// Set chip select pin states (ADBUS3 - ADBUS7)
ChipSelectsDisableStates.bADBUS3ChipSelectPinState = false;
ChipSelectsDisableStates.bADBUS4GPIOL1PinState = false;
ChipSelectsDisableStates.bADBUS5GPIOL2PinState = false;
ChipSelectsDisableStates.bADBUS6GPIOL3PinState = false;
ChipSelectsDisableStates.bADBUS7GPIOL4PinState = false;
// Set GPIO pin states (ACBUS0 - ACBUS3)
HighInputOutputPins.bPin1InputOutputState = true;
HighInputOutputPins.bPin1LowHighState = false;
HighInputOutputPins.bPin2InputOutputState = true;
HighInputOutputPins.bPin2LowHighState = false;
HighInputOutputPins.bPin3InputOutputState = true;
HighInputOutputPins.bPin3LowHighState = false;
HighInputOutputPins.bPin4InputOutputState = true;
HighInputOutputPins.bPin4LowHighState = false;
Status = SPI_SetGPIOs(ftHandle, &ChipSelectsDisableStates, &HighInputOutputPins);