Part Number: CC430F5137
we have use lots of CC430F5137, but we encounter a problem during temparature measure, we use 1.5V refrence and the ADC raw data is about 0x0860,
we use the ADC12 Calibration data in TLV table to convert , the ADC raw data is about 0x0860 when in 30 degree, but the converted temparaure is not
corrected obviously , we check the data in its TLV, it seem strange, following is the dump of two chip's TLV
1#
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06 06 74 05 51 37 12 12 08 0a 0c 72 8b 46 0b 00
1c 00 f8 fe 11 10 05 80 01 00 17 04 00 0a 17 04
80 07 17 04 00 06 12 06 b5 7b ca 7b c6 7b 02 55
2#
-----------------------------------------------
06 06 14 e4 51 37 12 12 08 0a 0c 72 8b 46 1a 00
31 00 f8 fe 11 10 05 80 01 00 32 04 33 0a 32 04
a6 07 32 04 1f 06 12 06 ac 7b b4 7b be 7b 02 55
for the # 1,
ADC 1.5V Reference Temp. Sensor 30°C
ADC 2.0V Reference Temp. Sensor 30°C
ADC 2.5V Reference Temp. Sensor 30°C
all above data is 0x0417, it don't seem reasonable,
for the # 2,
ADC 1.5V Reference Temp. Sensor 30°C
ADC 2.0V Reference Temp. Sensor 30°C
ADC 2.5V Reference Temp. Sensor 30°C
all above data is 0x0432, it also don't seem reasonable
and we have ADC 1.5V Reference Temp. Sensor 30°C, the ADC
convert data is about 0x0860
what's wrong with this chip? we double if this chip has has benn calibarate before released
we check other CC430F5137 chips in hand, also find this issue in calibarte data
any help will be appricated
