diff options
Diffstat (limited to 'testhal/STM32/STM32F4xx/DMA_STORM/main.c')
| -rw-r--r-- | testhal/STM32/STM32F4xx/DMA_STORM/main.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/testhal/STM32/STM32F4xx/DMA_STORM/main.c b/testhal/STM32/STM32F4xx/DMA_STORM/main.c new file mode 100644 index 000000000..e334e6a67 --- /dev/null +++ b/testhal/STM32/STM32F4xx/DMA_STORM/main.c @@ -0,0 +1,223 @@ +/*
+ 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 <string.h>
+
+#include "ch.h"
+#include "hal.h"
+
+#define ADC_GRP2_NUM_CHANNELS 8
+#define ADC_GRP2_BUF_DEPTH 16
+
+static adcsample_t samples2[ADC_GRP2_NUM_CHANNELS * ADC_GRP2_BUF_DEPTH];
+
+static void adccallback(ADCDriver *adcp, adcsample_t *buffer, size_t n) {
+
+ (void)adcp;
+ (void)buffer;
+ (void)n;
+}
+
+static void adcerrorcallback(ADCDriver *adcp, adcerror_t err) {
+
+ (void)adcp;
+ (void)err;
+ chSysHalt("ADC error");
+}
+
+/*
+ * ADC conversion group.
+ * Mode: Continuous, 16 samples of 8 channels, SW triggered.
+ * Channels: IN11, IN12, IN11, IN12, IN11, IN12, Sensor, VRef.
+ */
+static const ADCConversionGroup adcgrpcfg2 = {
+ TRUE,
+ ADC_GRP2_NUM_CHANNELS,
+ adccallback,
+ adcerrorcallback,
+ 0, /* CR1 */
+ ADC_CR2_SWSTART, /* CR2 */
+ ADC_SMPR1_SMP_AN12(ADC_SAMPLE_56) | ADC_SMPR1_SMP_AN11(ADC_SAMPLE_56) |
+ ADC_SMPR1_SMP_SENSOR(ADC_SAMPLE_144) | ADC_SMPR1_SMP_VREF(ADC_SAMPLE_144),
+ 0, /* SMPR2 */
+ ADC_SQR1_NUM_CH(ADC_GRP2_NUM_CHANNELS),
+ ADC_SQR2_SQ8_N(ADC_CHANNEL_SENSOR) | ADC_SQR2_SQ7_N(ADC_CHANNEL_VREFINT),
+ ADC_SQR3_SQ6_N(ADC_CHANNEL_IN12) | ADC_SQR3_SQ5_N(ADC_CHANNEL_IN11) |
+ ADC_SQR3_SQ4_N(ADC_CHANNEL_IN12) | ADC_SQR3_SQ3_N(ADC_CHANNEL_IN11) |
+ ADC_SQR3_SQ2_N(ADC_CHANNEL_IN12) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN11)
+};
+
+/*
+ * Maximum speed SPI configuration (21MHz, CPHA=0, CPOL=0, MSb first).
+ */
+static const SPIConfig hs_spicfg = {
+ NULL,
+ GPIOB,
+ 12,
+ 0
+};
+
+static void tmo(void *p) {
+
+ (void)p;
+ chSysHalt("timeout");
+}
+
+/*
+ * SPI thread.
+ */
+static THD_WORKING_AREA(waSPI1, 1024);
+static THD_WORKING_AREA(waSPI2, 1024);
+static THD_WORKING_AREA(waSPI3, 1024);
+static msg_t spi_thread(void *p) {
+ unsigned i;
+ SPIDriver *spip = (SPIDriver *)p;
+ virtual_timer_t vt;
+ uint8_t txbuf[256];
+ uint8_t rxbuf[256];
+
+ chVTObjectInit(&vt);
+
+ /* Prepare transmit pattern.*/
+ for (i = 0; i < sizeof(txbuf); i++)
+ txbuf[i] = (uint8_t)i;
+
+ /* Continuous transmission.*/
+ while (TRUE) {
+ /* Starts a VT working as watchdog to catch a malfunction in the SPI
+ driver.*/
+ chVTSet(&vt, MS2ST(10), tmo, NULL);
+
+ spiExchange(spip, sizeof(txbuf), txbuf, rxbuf);
+
+ /* Stops the watchdog.*/
+ chVTReset(&vt);
+ }
+}
+
+/*
+ * This is a periodic thread that does absolutely nothing except flashing
+ * a LED.
+ */
+static THD_WORKING_AREA(waThread1, 128);
+static msg_t Thread1(void *arg) {
+
+ (void)arg;
+ chRegSetThreadName("blinker");
+ while (TRUE) {
+ palSetPad(GPIOD, GPIOD_LED3); /* Orange. */
+ chThdSleepMilliseconds(500);
+ palClearPad(GPIOD, GPIOD_LED3); /* Orange. */
+ chThdSleepMilliseconds(500);
+ }
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+ unsigned i;
+ static uint8_t patterns1[4096], patterns2[4096], buf1[4096], buf2[4096];
+
+ /* 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();
+
+ /* Creates the blinker thread.*/
+ chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO + 10,
+ Thread1, NULL);
+
+ /* Activates the ADC1 driver and the temperature sensor.*/
+ adcStart(&ADCD1, NULL);
+ adcSTM32EnableTSVREFE();
+
+ /* Starts an ADC continuous conversion.*/
+ adcStartConversion(&ADCD1, &adcgrpcfg2, samples2, ADC_GRP2_BUF_DEPTH);
+
+ /* Activating SPI drivers.*/
+ spiStart(&SPID1, &hs_spicfg);
+ spiStart(&SPID2, &hs_spicfg);
+ spiStart(&SPID3, &hs_spicfg);
+
+ /* Starting SPI threads instances.*/
+ chThdCreateStatic(waSPI1, sizeof(waSPI1), NORMALPRIO + 1, spi_thread, &SPID1);
+ chThdCreateStatic(waSPI2, sizeof(waSPI2), NORMALPRIO + 1, spi_thread, &SPID2);
+ chThdCreateStatic(waSPI3, sizeof(waSPI3), NORMALPRIO + 1, spi_thread, &SPID3);
+
+ /* Allocating two DMA2 streams for memory copy operations.*/
+ if (dmaStreamAllocate(STM32_DMA2_STREAM6, 0, NULL, NULL))
+ chSysHalt("DMA already in use");
+ if (dmaStreamAllocate(STM32_DMA2_STREAM7, 0, NULL, NULL))
+ chSysHalt("DMA already in use");
+ for (i = 0; i < sizeof (patterns1); i++)
+ patterns1[i] = (uint8_t)i;
+ for (i = 0; i < sizeof (patterns2); i++)
+ patterns2[i] = (uint8_t)(i ^ 0xAA);
+
+ /* Normal main() thread activity, it does continues memory copy operations
+ using 2 DMA streams at the lowest priority.*/
+ while (TRUE) {
+ virtual_timer_t vt;
+
+ chVTObjectInit(&vt);
+
+ /* Starts a VT working as watchdog to catch a malfunction in the DMA
+ driver.*/
+ chVTSet(&vt, MS2ST(10), tmo, NULL);
+
+ /* Copy pattern 1.*/
+ dmaStartMemCopy(STM32_DMA2_STREAM6,
+ STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE |
+ STM32_DMA_CR_MSIZE_BYTE,
+ patterns1, buf1, sizeof (patterns1));
+ dmaStartMemCopy(STM32_DMA2_STREAM7,
+ STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE |
+ STM32_DMA_CR_MSIZE_BYTE,
+ patterns1, buf2, sizeof (patterns1));
+ dmaWaitCompletion(STM32_DMA2_STREAM6);
+ dmaWaitCompletion(STM32_DMA2_STREAM7);
+ if (memcmp(patterns1, buf1, sizeof (patterns1)))
+ chSysHalt("pattern error");
+ if (memcmp(patterns1, buf2, sizeof (patterns1)))
+ chSysHalt("pattern error");
+
+ /* Copy pattern 2.*/
+ dmaStartMemCopy(STM32_DMA2_STREAM6,
+ STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE |
+ STM32_DMA_CR_MSIZE_BYTE,
+ patterns2, buf1, sizeof (patterns2));
+ dmaStartMemCopy(STM32_DMA2_STREAM7,
+ STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE |
+ STM32_DMA_CR_MSIZE_BYTE,
+ patterns2, buf2, sizeof (patterns2));
+ dmaWaitCompletion(STM32_DMA2_STREAM6);
+ dmaWaitCompletion(STM32_DMA2_STREAM7);
+ if (memcmp(patterns2, buf1, sizeof (patterns2)))
+ chSysHalt("pattern error");
+ if (memcmp(patterns2, buf2, sizeof (patterns2)))
+ chSysHalt("pattern error");
+
+ /* Stops the watchdog.*/
+ chVTReset(&vt);
+
+ chThdSleepMilliseconds(2);
+ }
+ return 0;
+}
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