From eefaedd59cccaeddcde8f54f89c98a26cc570e82 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Wed, 7 May 2014 10:44:43 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6920 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32/STM32F30x/ADC_DUAL/main.c | 196 ++++++++++++++++++++++++++++++++ 1 file changed, 196 insertions(+) create mode 100644 testhal/STM32/STM32F30x/ADC_DUAL/main.c (limited to 'testhal/STM32/STM32F30x/ADC_DUAL/main.c') diff --git a/testhal/STM32/STM32F30x/ADC_DUAL/main.c b/testhal/STM32/STM32F30x/ADC_DUAL/main.c new file mode 100644 index 000000000..849207de0 --- /dev/null +++ b/testhal/STM32/STM32F30x/ADC_DUAL/main.c @@ -0,0 +1,196 @@ +/* + ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio + + 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 4 +#define ADC_GRP1_BUF_DEPTH 8 + +#define ADC_GRP2_NUM_CHANNELS 16 +#define ADC_GRP2_BUF_DEPTH 16 + +static adcsample_t samples1[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH]; +static adcsample_t samples2[ADC_GRP2_NUM_CHANNELS * ADC_GRP2_BUF_DEPTH]; + +/* + * ADC streaming callback. + */ +size_t nx = 0, ny = 0; +static void adccallback(ADCDriver *adcp, adcsample_t *buffer, size_t n) { + + (void)adcp; + if (samples2 == buffer) { + nx += n; + } + else { + ny += n; + } +} + +static void adcerrorcallback(ADCDriver *adcp, adcerror_t err) { + + (void)adcp; + (void)err; +} + +/* + * ADC conversion group. + * Mode: Linear buffer, 8 samples of 2 channels, SW triggered. + * Channels: IN7, IN8. + */ +static const ADCConversionGroup adcgrpcfg1 = { + FALSE, + ADC_GRP1_NUM_CHANNELS, + NULL, + adcerrorcallback, + 0, /* CFGR */ + ADC_TR(0, 4095), /* TR1 */ + ADC_CCR_DUAL(1), /* CCR */ + { /* SMPR[2] */ + 0, + 0 + }, + { /* SQR[4] */ + ADC_SQR1_SQ1_N(ADC_CHANNEL_IN7) | ADC_SQR1_SQ2_N(ADC_CHANNEL_IN8), + 0, + 0, + 0 + }, + { /* SSMPR[2] */ + 0, + 0 + }, + { /* SSQR[4] */ + ADC_SQR1_SQ1_N(ADC_CHANNEL_IN8) | ADC_SQR1_SQ2_N(ADC_CHANNEL_IN7), + 0, + 0, + 0 + } +}; + +/* + * ADC conversion group. + * Mode: Continuous, 16 samples of 8 channels, SW triggered. + * Channels: IN7, IN8, IN7, IN8, IN7, IN8, Sensor, VBat/2. + */ +static const ADCConversionGroup adcgrpcfg2 = { + TRUE, + ADC_GRP2_NUM_CHANNELS, + adccallback, + adcerrorcallback, + 0, /* CFGR */ + ADC_TR(0, 4095), /* TR1 */ + ADC_CCR_DUAL(1) | ADC_CCR_TSEN | ADC_CCR_VBATEN, /* CCR */ + { /* SMPR[2] */ + ADC_SMPR1_SMP_AN7(ADC_SMPR_SMP_19P5) + | ADC_SMPR1_SMP_AN8(ADC_SMPR_SMP_19P5), + ADC_SMPR2_SMP_AN16(ADC_SMPR_SMP_61P5) + | ADC_SMPR2_SMP_AN17(ADC_SMPR_SMP_61P5), + }, + { /* SQR[4] */ + ADC_SQR1_SQ1_N(ADC_CHANNEL_IN7) | ADC_SQR1_SQ2_N(ADC_CHANNEL_IN8) | + ADC_SQR1_SQ3_N(ADC_CHANNEL_IN7) | ADC_SQR1_SQ4_N(ADC_CHANNEL_IN8), + ADC_SQR2_SQ5_N(ADC_CHANNEL_IN7) | ADC_SQR2_SQ6_N(ADC_CHANNEL_IN8) | + ADC_SQR2_SQ7_N(ADC_CHANNEL_IN16) | ADC_SQR2_SQ8_N(ADC_CHANNEL_IN17), + 0, + 0 + }, + { /* SSMPR[2] */ + ADC_SMPR1_SMP_AN7(ADC_SMPR_SMP_19P5) + | ADC_SMPR1_SMP_AN8(ADC_SMPR_SMP_19P5), + ADC_SMPR2_SMP_AN16(ADC_SMPR_SMP_61P5) + | ADC_SMPR2_SMP_AN17(ADC_SMPR_SMP_61P5), + }, + { /* SSQR[4] */ + ADC_SQR1_SQ1_N(ADC_CHANNEL_IN8) | ADC_SQR1_SQ2_N(ADC_CHANNEL_IN7) | + ADC_SQR1_SQ3_N(ADC_CHANNEL_IN8) | ADC_SQR1_SQ4_N(ADC_CHANNEL_IN7), + ADC_SQR2_SQ5_N(ADC_CHANNEL_IN8) | ADC_SQR2_SQ6_N(ADC_CHANNEL_IN7) | + ADC_SQR2_SQ7_N(ADC_CHANNEL_IN17) | ADC_SQR2_SQ8_N(ADC_CHANNEL_IN16), + 0, + 0 + } +}; + +/* + * Red LEDs blinker thread, times are in milliseconds. + */ +static THD_WORKING_AREA(waThread1, 128); +static msg_t Thread1(void *arg) { + + (void)arg; + chRegSetThreadName("blinker"); + while (TRUE) { + palSetPad(GPIOE, GPIOE_LED10_RED); + chThdSleepMilliseconds(500); + palClearPad(GPIOE, GPIOE_LED10_RED); + chThdSleepMilliseconds(500); + } + return 0; +} + +/* + * 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(); + + /* + * Setting up analog inputs used by the demo. + */ + palSetGroupMode(GPIOC, PAL_PORT_BIT(1) | PAL_PORT_BIT(2), + 0, PAL_MODE_INPUT_ANALOG); + + /* + * Creates the blinker thread. + */ + chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL); + + /* + * Activates the ADC1 driver and the temperature sensor. + */ + adcStart(&ADCD1, NULL); + + /* + * Linear conversion. + */ + adcConvert(&ADCD1, &adcgrpcfg1, samples1, ADC_GRP1_BUF_DEPTH); + chThdSleepMilliseconds(1000); + + /* + * Starts an ADC continuous conversion. + */ + adcStartConversion(&ADCD1, &adcgrpcfg2, samples2, ADC_GRP2_BUF_DEPTH); + + /* + * Normal main() thread activity, in this demo it does nothing. + */ + while (TRUE) { + if (palReadPad(GPIOA, GPIOA_BUTTON)) { + adcStopConversion(&ADCD1); + } + chThdSleepMilliseconds(500); + } +} -- cgit v1.2.3