diff options
| author | Keith Packard <keithp@keithp.com> | 2012-04-07 20:31:58 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-04-07 20:31:58 -0700 |
| commit | 0bce68e6a0abc19f49c573331164d13643c9bee5 (patch) | |
| tree | 2cbe7d0de8f9519c839a356eaae51a4b7ac4bdd2 /src | |
| parent | a41628c97e90770890cce1d6f580e92c1cad1a7f (diff) | |
altos: Add STM temperature sensor calibration data
Each stm32l has two-point factory temperature calibration data.
Provide access to that for displaying temperature data.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/stm/registers.ld | 5 | ||||
| -rw-r--r-- | src/stm/stm32l.h | 12 |
2 files changed, 16 insertions, 1 deletions
diff --git a/src/stm/registers.ld b/src/stm/registers.ld index 51921444..fd61e486 100644 --- a/src/stm/registers.ld +++ b/src/stm/registers.ld @@ -44,4 +44,7 @@ stm_tim4 = 0x40000800; stm_tim3 = 0x40000400; stm_tim2 = 0x40000000; -stm_nvic = 0xe000e100;
\ No newline at end of file +stm_nvic = 0xe000e100; + +/* calibration data in system memory */ +stm_temp_cal = 0x1ff80078; diff --git a/src/stm/stm32l.h b/src/stm/stm32l.h index b9f45513..338bc471 100644 --- a/src/stm/stm32l.h +++ b/src/stm/stm32l.h @@ -1152,4 +1152,16 @@ extern struct stm_adc stm_adc; #define STM_ADC_CCR_ADCPRE_HSI_4 2 #define STM_ADC_CCR_ADCPRE_MASK 3 +struct stm_temp_cal { + uint16_t vref; + uint16_t ts_cal_cold; + uint16_t reserved; + uint16_t ts_cal_hot; +}; + +extern struct stm_temp_cal stm_temp_cal; + +#define stm_temp_cal_cold 25 +#define stm_temp_cal_hot 110 + #endif /* _STM32L_H_ */ |