From 4ffde4b17e7d74924e38531422e9af999110b92c Mon Sep 17 00:00:00 2001 From: Fabien Poussin Date: Thu, 9 Feb 2017 12:30:21 +0100 Subject: [Comp] Adding interrupt functions, updating example. --- testhal/STM32/STM32F3xx/COMP/halconf.h | 4 +- testhal/STM32/STM32F3xx/COMP/main.c | 114 ++++++++++++++++++++++++++++----- testhal/STM32/STM32F3xx/COMP/mcuconf.h | 4 +- 3 files changed, 101 insertions(+), 21 deletions(-) (limited to 'testhal/STM32') diff --git a/testhal/STM32/STM32F3xx/COMP/halconf.h b/testhal/STM32/STM32F3xx/COMP/halconf.h index 5b4ea33..2471ec7 100644 --- a/testhal/STM32/STM32F3xx/COMP/halconf.h +++ b/testhal/STM32/STM32F3xx/COMP/halconf.h @@ -55,7 +55,7 @@ * @brief Enables the DAC subsystem. */ #if !defined(HAL_USE_DAC) || defined(__DOXYGEN__) -#define HAL_USE_DAC FALSE +#define HAL_USE_DAC TRUE #endif /** @@ -69,7 +69,7 @@ * @brief Enables the GPT subsystem. */ #if !defined(HAL_USE_GPT) || defined(__DOXYGEN__) -#define HAL_USE_GPT FALSE +#define HAL_USE_GPT TRUE #endif /** diff --git a/testhal/STM32/STM32F3xx/COMP/main.c b/testhal/STM32/STM32F3xx/COMP/main.c index eb1e1c0..a1d5d54 100644 --- a/testhal/STM32/STM32F3xx/COMP/main.c +++ b/testhal/STM32/STM32F3xx/COMP/main.c @@ -17,33 +17,86 @@ #include "ch.h" #include "hal.h" -void comp2_cb(COMPDriver *comp) { +#define DAC_BUFFER_SIZE 360 - if (comp->reg->CSR & COMP_CSR_COMPxOUT) { +/* + * DAC test buffer (sine wave). + */ +static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = { + 2047, 2082, 2118, 2154, 2189, 2225, 2260, 2296, 2331, 2367, 2402, 2437, + 2472, 2507, 2542, 2576, 2611, 2645, 2679, 2713, 2747, 2780, 2813, 2846, + 2879, 2912, 2944, 2976, 3008, 3039, 3070, 3101, 3131, 3161, 3191, 3221, + 3250, 3278, 3307, 3335, 3362, 3389, 3416, 3443, 3468, 3494, 3519, 3544, + 3568, 3591, 3615, 3637, 3660, 3681, 3703, 3723, 3744, 3763, 3782, 3801, + 3819, 3837, 3854, 3870, 3886, 3902, 3917, 3931, 3944, 3958, 3970, 3982, + 3993, 4004, 4014, 4024, 4033, 4041, 4049, 4056, 4062, 4068, 4074, 4078, + 4082, 4086, 4089, 4091, 4092, 4093, 4094, 4093, 4092, 4091, 4089, 4086, + 4082, 4078, 4074, 4068, 4062, 4056, 4049, 4041, 4033, 4024, 4014, 4004, + 3993, 3982, 3970, 3958, 3944, 3931, 3917, 3902, 3886, 3870, 3854, 3837, + 3819, 3801, 3782, 3763, 3744, 3723, 3703, 3681, 3660, 3637, 3615, 3591, + 3568, 3544, 3519, 3494, 3468, 3443, 3416, 3389, 3362, 3335, 3307, 3278, + 3250, 3221, 3191, 3161, 3131, 3101, 3070, 3039, 3008, 2976, 2944, 2912, + 2879, 2846, 2813, 2780, 2747, 2713, 2679, 2645, 2611, 2576, 2542, 2507, + 2472, 2437, 2402, 2367, 2331, 2296, 2260, 2225, 2189, 2154, 2118, 2082, + 2047, 2012, 1976, 1940, 1905, 1869, 1834, 1798, 1763, 1727, 1692, 1657, + 1622, 1587, 1552, 1518, 1483, 1449, 1415, 1381, 1347, 1314, 1281, 1248, + 1215, 1182, 1150, 1118, 1086, 1055, 1024, 993, 963, 933, 903, 873, + 844, 816, 787, 759, 732, 705, 678, 651, 626, 600, 575, 550, + 526, 503, 479, 457, 434, 413, 391, 371, 350, 331, 312, 293, + 275, 257, 240, 224, 208, 192, 177, 163, 150, 136, 124, 112, + 101, 90, 80, 70, 61, 53, 45, 38, 32, 26, 20, 16, + 12, 8, 5, 3, 2, 1, 0, 1, 2, 3, 5, 8, + 12, 16, 20, 26, 32, 38, 45, 53, 61, 70, 80, 90, + 101, 112, 124, 136, 150, 163, 177, 192, 208, 224, 240, 257, + 275, 293, 312, 331, 350, 371, 391, 413, 434, 457, 479, 503, + 526, 550, 575, 600, 626, 651, 678, 705, 732, 759, 787, 816, + 844, 873, 903, 933, 963, 993, 1024, 1055, 1086, 1118, 1150, 1182, + 1215, 1248, 1281, 1314, 1347, 1381, 1415, 1449, 1483, 1518, 1552, 1587, + 1622, 1657, 1692, 1727, 1763, 1798, 1834, 1869, 1905, 1940, 1976, 2012 +}; +static const DACConfig dac1cfg1 = { + .init = 2047U, + .datamode = DAC_DHRM_12BIT_RIGHT, + .cr = 0 +}; - } +static const DACConversionGroup dacgrpcfg1 = { + .num_channels = 1U, + .end_cb = NULL, + .error_cb = NULL, + .trigger = DAC_TRG(0) +}; -} +/* + * GPT6 configuration. + */ +static const GPTConfig gpt6cfg1 = { + .frequency = 10000U, + .callback = NULL, + .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ + .dier = 0U +}; + +void comp2_cb(COMPDriver *comp) { + + /* Check if output is high (rising) */ + if (comp->reg->CSR & COMP_CSR_COMPxOUT) { -void comp4_cb(COMPDriver *comp) { - (void) comp; + palToggleLine(LINE_LED9_BLUE); + } } static const COMPConfig comp2_conf = { COMP_OUTPUT_NORMAL, + COMP_IRQ_RISING, comp2_cb, - STM32_COMP_InvertingInput_VREFINT || STM32_COMP_Hysteresis_High // CSR -}; - -static const COMPConfig comp4_conf = { - COMP_OUTPUT_INVERTED, - comp4_cb, - STM32_COMP_InvertingInput_1_2VREFINT | COMP_CSR_COMPxOUTSEL_1 // CSR + STM32_COMP_InvertingInput_VREFINT | + STM32_COMP_NonInvertingInput_IO2 | + STM32_COMP_Hysteresis_High // CSR }; - /* * Application entry point. */ @@ -52,14 +105,41 @@ int main(void) { halInit(); chSysInit(); + /* + * Set PA3 - PA4 to Analog (DAC1_CH1, COMP2_INP) + * You will have to connect these with a jumper wire + */ + palSetPadMode(GPIOA, 3, PAL_MODE_INPUT_ANALOG); + palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG); + + /* + * Set PA2 to alternate 8 (COMP2_OUT) + * You can connect this to an oscilloscope along with PA4 to compare input/output. + */ + palSetPadMode(GPIOA, 2, PAL_MODE_ALTERNATE(8)); + + /* + * Start peripherals + */ + dacStart(&DACD1, &dac1cfg1); compStart(&COMPD2, &comp2_conf); - compStart(&COMPD4, &comp4_conf); + gptStart(&GPTD6, &gpt6cfg1); + + /* + * Starting a continuous conversion. + */ + dacStartConversion(&DACD1, &dacgrpcfg1, dac_buffer, DAC_BUFFER_SIZE); + gptStartContinuous(&GPTD6, 2U); + + compEnable(&COMPD2); /* - * Normal main() thread activity, it resets the watchdog. + * Normal main() thread activity. */ while (true) { - chThdSleepMilliseconds(500); + + chThdSleepMilliseconds(250); + palToggleLine(LINE_LED3_RED); } return 0; } diff --git a/testhal/STM32/STM32F3xx/COMP/mcuconf.h b/testhal/STM32/STM32F3xx/COMP/mcuconf.h index badcd95..0d37614 100644 --- a/testhal/STM32/STM32F3xx/COMP/mcuconf.h +++ b/testhal/STM32/STM32F3xx/COMP/mcuconf.h @@ -104,7 +104,7 @@ */ #define STM32_DAC_DUAL_MODE FALSE #define STM32_DAC_USE_DAC1_CH1 TRUE -#define STM32_DAC_USE_DAC1_CH2 TRUE +#define STM32_DAC_USE_DAC1_CH2 FALSE #define STM32_DAC_DAC1_CH1_IRQ_PRIORITY 10 #define STM32_DAC_DAC1_CH2_IRQ_PRIORITY 10 #define STM32_DAC_DAC1_CH1_DMA_PRIORITY 2 @@ -136,7 +136,7 @@ #define STM32_GPT_USE_TIM2 FALSE #define STM32_GPT_USE_TIM3 FALSE #define STM32_GPT_USE_TIM4 FALSE -#define STM32_GPT_USE_TIM6 FALSE +#define STM32_GPT_USE_TIM6 TRUE #define STM32_GPT_USE_TIM7 FALSE #define STM32_GPT_USE_TIM8 FALSE #define STM32_GPT_TIM1_IRQ_PRIORITY 7 -- cgit v1.2.3