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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2011-06-12 14:22:48 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2011-06-12 14:22:48 +0000
commit792c06e58554c5ed4cb84e69fe4f6d9add173ec0 (patch)
tree235b9428826fd137cdb10a730a1a26c559f41233 /demos/ARMCM3-STM32L152-DISCOVERY/main.c
parent3cdb6f6ed629b9fd98e6c490d77bdecf5cc34685 (diff)
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3042 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'demos/ARMCM3-STM32L152-DISCOVERY/main.c')
-rw-r--r--demos/ARMCM3-STM32L152-DISCOVERY/main.c153
1 files changed, 12 insertions, 141 deletions
diff --git a/demos/ARMCM3-STM32L152-DISCOVERY/main.c b/demos/ARMCM3-STM32L152-DISCOVERY/main.c
index ff9c4ec70..a56f81efa 100644
--- a/demos/ARMCM3-STM32L152-DISCOVERY/main.c
+++ b/demos/ARMCM3-STM32L152-DISCOVERY/main.c
@@ -22,135 +22,6 @@
#include "hal.h"
#include "test.h"
-static void pwmpcb(PWMDriver *pwmp);
-static void adccb(ADCDriver *adcp, adcsample_t *buffer, size_t n);
-static void spicb(SPIDriver *spip);
-
-/* Total number of channels to be sampled by a single ADC operation.*/
-#define ADC_GRP1_NUM_CHANNELS 2
-
-/* Depth of the conversion buffer, channels are sampled four times each.*/
-#define ADC_GRP1_BUF_DEPTH 4
-
-/*
- * ADC samples buffer.
- */
-static adcsample_t samples[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH];
-
-/*
- * ADC conversion group.
- * Mode: Linear buffer, 4 samples of 2 channels, SW triggered.
- * Channels: IN10 (41.5 cycles sample time)
- * Sensor (239.5 cycles sample time)
- */
-static const ADCConversionGroup adcgrpcfg = {
- FALSE,
- ADC_GRP1_NUM_CHANNELS,
- adccb,
- /* HW dependent part.*/
- 0,
- ADC_CR2_TSVREFE,
- ADC_SMPR1_SMP_AN10(ADC_SAMPLE_41P5) | ADC_SMPR1_SMP_SENSOR(ADC_SAMPLE_239P5),
- 0,
- ADC_SQR1_NUM_CH(ADC_GRP1_NUM_CHANNELS),
- 0,
- ADC_SQR3_SQ2_N(ADC_CHANNEL_IN10) | ADC_SQR3_SQ1_N(ADC_CHANNEL_SENSOR)
-};
-
-/*
- * PWM configuration structure.
- * Cyclic callback enabled, channels 3 and 4 enabled without callbacks,
- * the active state is a logic one.
- */
-static PWMConfig pwmcfg = {
- 10000, /* 10KHz PWM clock frequency. */
- 10000, /* PWM period 1S (in ticks). */
- pwmpcb,
- {
- {PWM_OUTPUT_DISABLED, NULL},
- {PWM_OUTPUT_DISABLED, NULL},
- {PWM_OUTPUT_ACTIVE_HIGH, NULL},
- {PWM_OUTPUT_ACTIVE_HIGH, NULL}
- },
- /* HW dependent part.*/
- 0,
-#if STM32_PWM_USE_ADVANCED
- 0
-#endif
-};
-
-/*
- * SPI configuration structure.
- * Maximum speed (12MHz), CPHA=0, CPOL=0, 16bits frames, MSb transmitted first.
- * The slave select line is the pin GPIOA_SPI1NSS on the port GPIOA.
- */
-static const SPIConfig spicfg = {
- spicb,
- /* HW dependent part.*/
- GPIOA,
- GPIOA_SPI1NSS,
- SPI_CR1_DFF
-};
-
-/*
- * PWM cyclic callback.
- * A new ADC conversion is started.
- */
-static void pwmpcb(PWMDriver *pwmp) {
-
- (void)pwmp;
-
- /* Starts an asynchronous ADC conversion operation, the conversion
- will be executed in parallel to the current PWM cycle and will
- terminate before the next PWM cycle.*/
- chSysLockFromIsr();
- adcStartConversionI(&ADCD1, &adcgrpcfg, samples, ADC_GRP1_BUF_DEPTH);
- chSysUnlockFromIsr();
-}
-
-/*
- * ADC end conversion callback.
- * The PWM channels are reprogrammed using the latest ADC samples.
- * The latest samples are transmitted into a single SPI transaction.
- */
-void adccb(ADCDriver *adcp, adcsample_t *buffer, size_t n) {
-
- (void) buffer; (void) n;
- /* Note, only in the ADC_COMPLETE state because the ADC driver fires an
- intermediate callback when the buffer is half full.*/
- if (adcp->state == ADC_COMPLETE) {
- adcsample_t avg_ch1, avg_ch2;
-
- /* Calculates the average values from the ADC samples.*/
- avg_ch1 = (samples[0] + samples[2] + samples[4] + samples[6]) / 4;
- avg_ch2 = (samples[1] + samples[3] + samples[5] + samples[7]) / 4;
-
- chSysLockFromIsr();
-
- /* Changes the channels pulse width, the change will be effective
- starting from the next cycle.*/
- pwmEnableChannelI(&PWMD3, 2, PWM_FRACTION_TO_WIDTH(&PWMD3, 4096, avg_ch1));
- pwmEnableChannelI(&PWMD3, 3, PWM_FRACTION_TO_WIDTH(&PWMD3, 4096, avg_ch2));
-
- /* SPI slave selection and transmission start.*/
- spiSelectI(&SPID1);
- spiStartSendI(&SPID1, ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH, samples);
-
- chSysUnlockFromIsr();
- }
-}
-
-/*
- * SPI end transfer callback.
- */
-static void spicb(SPIDriver *spip) {
-
- /* On transfer end just releases the slave select line.*/
- chSysLockFromIsr();
- spiUnselectI(spip);
- chSysUnlockFromIsr();
-}
-
/*
* This is a periodic thread that does absolutely nothing except increasing
* a seconds counter.
@@ -184,27 +55,27 @@ int main(void) {
/*
* Activates the serial driver 1 using the driver default configuration.
*/
- sdStart(&SD1, NULL);
+// sdStart(&SD1, NULL);
/*
* If the user button is pressed after the reset then the test suite is
* executed immediately before activating the various device drivers in
* order to not alter the benchmark scores.
*/
- if (palReadPad(GPIOA, GPIOA_BUTTON))
- TestThread(&SD1);
+// if (palReadPad(GPIOA, GPIOA_BUTTON))
+// TestThread(&SD1);
/*
* Initializes the SPI driver 1.
*/
- spiStart(&SPID1, &spicfg);
+// spiStart(&SPID1, &spicfg);
/*
* Initializes the ADC driver 1.
* The pin PC0 on the port GPIOC is programmed as analog input.
*/
- adcStart(&ADCD1, NULL);
- palSetGroupMode(GPIOC, PAL_PORT_BIT(0), PAL_MODE_INPUT_ANALOG);
+// adcStart(&ADCD1, NULL);
+// palSetGroupMode(GPIOC, PAL_PORT_BIT(0), PAL_MODE_INPUT_ANALOG);
/*
* Initializes the PWM driver 1, re-routes the TIM3 outputs, programs the
@@ -212,10 +83,10 @@ int main(void) {
* Note, the AFIO access routes the TIM3 output pins on the PC6...PC9
* where the LEDs are connected.
*/
- pwmStart(&PWMD3, &pwmcfg);
- AFIO->MAPR |= AFIO_MAPR_TIM3_REMAP_0 | AFIO_MAPR_TIM3_REMAP_1;
- palSetGroupMode(GPIOC, PAL_PORT_BIT(GPIOC_LED3) | PAL_PORT_BIT(GPIOC_LED4),
- PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+// pwmStart(&PWMD3, &pwmcfg);
+// AFIO->MAPR |= AFIO_MAPR_TIM3_REMAP_0 | AFIO_MAPR_TIM3_REMAP_1;
+// palSetGroupMode(GPIOC, PAL_PORT_BIT(GPIOC_LED3) | PAL_PORT_BIT(GPIOC_LED4),
+// PAL_MODE_STM32_ALTERNATE_PUSHPULL);
/*
* Creates the example thread.
@@ -229,8 +100,8 @@ int main(void) {
* driver 1.
*/
while (TRUE) {
- if (palReadPad(GPIOA, GPIOA_BUTTON))
- TestThread(&SD1);
+// if (palReadPad(GPIOA, GPIOA_BUTTON))
+// TestThread(&SD1);
chThdSleepMilliseconds(500);
}
}