diff options
Diffstat (limited to 'testhal/KINETIS/ADC/main.c')
-rw-r--r-- | testhal/KINETIS/ADC/main.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/testhal/KINETIS/ADC/main.c b/testhal/KINETIS/ADC/main.c deleted file mode 100644 index f01051b9f..000000000 --- a/testhal/KINETIS/ADC/main.c +++ /dev/null @@ -1,132 +0,0 @@ -/*
- ChibiOS - Copyright (C) 2014 Derek Mulcahy
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-#include "ch.h"
-#include "hal.h"
-
-#define ADC_GRP1_NUM_CHANNELS 2
-#define ADC_GRP1_BUF_DEPTH 1
-
-static adcsample_t samples1[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH];
-
-static void adc_end_cb(ADCDriver *adcp, adcsample_t *buffer, size_t n) {
-
- (void)adcp;
- (void)n;
-
- /*
- * The bandgap value represents the ADC reading for 1.0V
- */
- uint16_t sensor = buffer[0];
- uint16_t bandgap = buffer[1];
-
- /*
- * The v25 value is the voltage reading at 25C, it comes from the ADC
- * electricals table in the processor manual. V25 is in millivolts.
- */
- int32_t v25 = 716;
-
- /*
- * The m value is slope of the temperature sensor values, again from
- * the ADC electricals table in the processor manual.
- * M in microvolts per degree.
- */
- int32_t m = 1620;
-
- /*
- * Divide the temperature sensor reading by the bandgap to get
- * the voltage for the ambient temperature in millivolts.
- */
- int32_t vamb = (sensor * 1000) / bandgap;
-
- /*
- * This formula comes from the reference manual.
- * Temperature is in millidegrees C.
- */
- int32_t delta = (((vamb - v25) * 1000000) / m);
- int32_t temp = 25000 - delta;
-
- if (temp < 19000) {
- /* Turn just the Blue LED on if less than 19C */
- palSetPad(GPIOB,18); // Red
- palSetPad(GPIOB,19); // Green
- palClearPad(GPIOD,1); // Blue
- } else if (temp > 28000) {
- /* Turn just the Red LED on if greater than 28C */
- palClearPad(GPIOB,18); // Red
- palSetPad(GPIOB,19); // Green
- palSetPad(GPIOD,1); // Blue
- } else {
- /* Turn just the Green LED on if between 19C and 28C */
- palSetPad(GPIOB,18); // Red
- palClearPad(GPIOB,19); // Green
- palSetPad(GPIOD,1); // Blue
- }
-}
-
-/*
- * ADC conversion group.
- * Mode: Linear buffer, 8 samples of 1 channel, SW triggered.
- */
-static const ADCConversionGroup adcgrpcfg1 = {
- false,
- ADC_GRP1_NUM_CHANNELS,
- adc_end_cb,
- NULL,
- ADC_TEMP_SENSOR | ADC_BANDGAP,
- /* CFG1 Regiser - ADCCLK = SYSCLK / 16, 16 bits per sample */
- ADCx_CFG1_ADIV(ADCx_CFG1_ADIV_DIV_8) |
- ADCx_CFG1_ADICLK(ADCx_CFG1_ADIVCLK_BUS_CLOCK_DIV_2) |
- ADCx_CFG1_MODE(ADCx_CFG1_MODE_16_BITS),
- /* SC3 Register - Average 32 readings per sample */
- ADCx_SC3_AVGE |
- ADCx_SC3_AVGS(ADCx_SC3_AVGS_AVERAGE_32_SAMPLES)
-};
-
-static const ADCConfig adccfg1 = {
- /* Perform initial calibration */
- true
-};
-
-/*
- * Application entry point.
- */
-int main(void) {
-
- /*
- * System initializations.
- * - HAL initialization, this also initializes the configured device drivers
- * and performs the board-specific initializations.
- * - Kernel initialization, the main() function becomes a thread and the
- * RTOS is active.
- */
- halInit();
- chSysInit();
-
- /*
- * Activates the ADC1 driver.
- */
- adcStart(&ADCD1, &adccfg1);
-
- while (1) {
- /*
- * ADC linear conversion.
- */
- adcConvert(&ADCD1, &adcgrpcfg1, samples1, ADC_GRP1_BUF_DEPTH);
-
- chThdSleepMilliseconds(500);
- }
-}
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