LabJack U12 - 5.14 - SPI

of RAM buffer (first 4 bytes of RAM transmit buffer are never used). Any additional bytes must be written/read with the RAM. Baud
rate with no delay is about 160 kpbs.
Command
Byte #
Description
0
Data Byte 3
1
Data Byte 2
2
Data Byte 1
3
Data Byte 0
4
Bit 7: ms Delay
Bit 6: Hundred µs Delay
Bits 5-4: XX
Bit 3: SPI Mode D
Bit 2: SPI Mode C
Bit 1: SPI Mode B
Bit 0: SPI Mode A
5
011XXX10 (SPI)
6
Number of bytes to write/read (1-18)
7
Bit 7: Control CS
Bit 6: State of Active CS
Bits 5-3: XXX
Bits 2-0: D line to use as CS (0-7)
Response
Byte #
Description
0
Data Byte 3
1
Data Byte 2
2
Data Byte 1
3
Data Byte 0
4
Bits 7-4: XXXX
Bit 3: CSStateTris Error Flag
Bit 2: SCKTris Error Flag
Bit 1: MISOTris Error Flag
Bit 0: MOSITris Error Flag
5
011XXX10 (Echo of byte 5)
6
Echo of byte 6 from Command
7
Echo of byte 7 from Command
LabJackPython Example
>>> import u12
>>> d = u12.U12()
open called
Writing: [0x0, 0x0, 0x0, 0x0, 0x0, 0x57, 0x0, 0x0]
Received: [0x57, 0x0, 0x0, 0x0, 0xff, 0xff, 0x0, 0x0]
>>> d.rawSPI([1,2,3,4], NumberOfBytesToWriteRead = 4)
Writing: [0x4, 0x3, 0x2, 0x1, 0x1, 0x62, 0x4, 0x0]
Received: [0x4, 0x3, 0x2, 0x1, 0x1, 0x62, 0x4, 0x0]
{
'DataByte3': 4, 'DataByte2': 3, 'DataByte1': 2, 'DataByte0': 1,
'ErrorFlags':
<BitField object: [ CSStateTris Error Flag = 0 (0),
SCKTris Error Flag = 0 (0),
MISOTris Error Flag = 0 (0),
MOSITris Error Flag = 1 (1) ] >
}
5.15 - SHT1X
Sends and receives data from a SHT1X T/RH sensor from Sensirion.
Baud rate without delay is about 2 kpbs.
DATA is IO0, SCK is IO1
Enable is not handled by this function.
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