In SX Microcontrollers, SX/B Compiler and SX-Key Tool, jdemeyer wrote:

Here is my snippet.  I took this from an SX-28 example.  When I toggled the Rst line, I would receive all three values: temperature, counter, and slope.

[code]
INIT_1620:
	Rst = 1                                       ' select device
	SHIFTOUT DQ, Clock, LSBFIRST, WrCfg           ' write to config register
	SHIFTOUT DQ, Clock, LSBFIRST, %00000010       ' with CPU; free-run
	Rst = 0                                       ' deselect device
	PAUSE 10                                      ' allow DS1620 EE to write
	Rst = 1                                       ' reselect
	SHIFTOUT DQ, Clock, LSBFIRST, StartC          ' start conversion
	Rst = 0                                       ' deselect
RETURN

RD_1620:
	Rst = 1                                       ' select device
	SHIFTOUT DQ, Clock, LSBFIRST, RdTmp           ' send read temp command
	SHIFTIN DQ, Clock, LSBPRE, tmpB1              ' get temp (C x 0.5)
	SHIFTIN DQ, Clock, LSBPRE, tSign1\1           ' get sign bit
	Rst = 0
	Rst = 1                                       ' select device
	SHIFTOUT DQ, Clock, LSBFIRST, RdCounter
	SHIFTIN DQ, Clock, LSBPRE, tmpB2              ' 
	SHIFTIN DQ, Clock, LSBPRE, tSign2\1           ' 
	Rst = 0
	Rst = 1                                       ' select device
	SHIFTOUT DQ, Clock, LSBFIRST, RdSlope
	SHIFTIN DQ, Clock, LSBPRE, tmpB3              ' 
	SHIFTIN DQ, Clock, LSBPRE, tSign3\1           ' 
	Rst = 0                                       ' deselect device
RETURN
[/code]

I haven't evaluated chip temperature and ambient temperature.

Joe

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