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Fixed temperature ADC conversion bug on mbxxx.

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The conversion was made from an incorrect source when
the GPIO pin was not PB7.
Added functions and macros used to select the correct
ADC channel.
This commit is contained in:
Salvatore Pitrulli 2011-04-20 12:14:11 +02:00
parent faf2943e02
commit 01a7a78a94
4 changed files with 60 additions and 9 deletions
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2
platform/mbxxx/dev/temperature-sensor.c
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@ -72,7 +72,7 @@ value(int type)
static int16u ADCvalue;
static int16s volts;
halStartAdcConversion(ADC_USER_APP, ADC_REF_INT, ADC_SOURCE_ADC2_VREF2, ADC_CONVERSION_TIME_US_4096);
halStartAdcConversion(ADC_USER_APP, ADC_REF_INT, ADC_SOURCE(halGetADCChannelFromGPIO(TEMPERATURE_SENSOR_GPIO),ADC_MUX_VREF2), ADC_CONVERSION_TIME_US_4096);
halReadAdcBlocking(ADC_USER_APP, &ADCvalue); // This blocks for a while, about 4ms.