FTDI LibFT4222 - SPI Master Single Write

Application Note
AN_329 User Guide For LibFT4222
Version 1.5
Document Reference No.: FT_001060 Clearance No.: FTDI#406
27
Product Page
Document Feedback Copyright © Future Technology Devices International Limited
Prerequisite:
FT4222_SPIMaster_init
Example:
FT_HANDLE ftHandle = NULL;
FT_STATUS ftStatus;
FT4222_STATUS ft4222Status;
ftStatus = FT_Open(0, &ftHandle);
if (FT_OK != ftStatus)
{
// open failed
return;
}
ft4222Status = FT4222_SPIMaster_Init(ftHandle, SPI_IO_SINGLE, CLK_DIV_4, CLK_IDLE_LOW,
CLK_LEADING, 0x01);
if (FT4222_OK != ft4222Status)
{
// spi master init failed
return;
}
uint8 recvData[10];
uint16 sizeTransferred;
ft4222Status = FT4222_SPIMaster_SingleRead(ftHandle, &recvData[0], 10, &sizeTransferred,
true);
if (FT4222_OK != ft4222Status)
{
// spi master read failed
return;
}
FT4222_UnInitialize(ftHandle);
FT_Close(ftHandle);
3.3.4 SPI Master Single Write
FT4222_STATUS FT4222_SPIMaster_SingleWrite(FT_HANDLE ftHandle, uint8* buffer, uint16
bytesToWrite, uint16* sizeTransferred, BOOL isEndTransaction)
Supported Chip:
FT4222 chip version
Supported
FT4222 Rev A
YES
FT4222 Rev B
YES
FT4222 Rev C
YES
FT4222 Rev D
YES
Summary:
Under SPI single mode, write data to an SPI slave.
Parameters:
ftHandle
Handle of the device.
Buffer
Pointer to the buffer that contains the data to be written to the device.
bytesToWrite
Number of bytes to write to the device.
sizeTransferred
Pointer to a variable of type uint16 which receives the number of bytes written
to the device.