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#include "ch.h"
#include "hal.h"
#include "usbcfg.h"
class dDAC
{
public:
constexpr dDAC(DACDriver& driver, const DACConfig& config) :
m_driver(&driver), m_config(config) {}
void init() {
dacStart(m_driver, &m_config);
}
void writeX(unsigned int channel, uint16_t value) {
if (channel < 2)
dacPutChannelX(m_driver, channel, value);
}
private:
DACDriver *m_driver;
DACConfig m_config;
};
//static const DACConversionGroup dacGroupConfig = {
// .num_channels = 1,
// .end_cb = NULL,
// .error_cb = NULL,
// .trigger = DAC_TRG(0)
//};
class dGPT {
public:
constexpr dGPT(GPTDriver& driver, const GPTConfig& config) :
m_driver(&driver), m_config(config) {}
void init() {
gptStart(m_driver, &m_config);
}
void startContinuous(unsigned int interval) {
gptStartContinuous(m_driver, interval);
}
void stop() {
gptStopTimer(m_driver);
}
private:
GPTDriver *m_driver;
GPTConfig m_config;
};
static dGPT gpt (GPTD4, {
.frequency = 1000000,
.callback = NULL,
.cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
.dier = 0
});
static const ADCConfig adcConfig = {
.difsel = 0
};
volatile bool adcFinished = false;
void adcEndCallback(ADCDriver *adcd)
{
(void)adcd;
gpt.stop();
adcFinished = true;
}
static const ADCConversionGroup adcGroupConfig = {
.circular = false,
.num_channels = 1,
.end_cb = adcEndCallback,
.error_cb = NULL,
.cfgr = ADC_CFGR_EXTEN_RISING |
ADC_CFGR_EXTSEL_SRC(12), /* TIM4_TRGO */
.cfgr2 = 0,
.tr1 = ADC_TR(0, 4095),
.smpr = {
ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_247P5), 0
},
.sqr = {
ADC_SQR1_SQ1_N(ADC_CHANNEL_IN5),
0, 0, 0
}
};
#if CACHE_LINE_SIZE > 0
CC_ALIGN(CACHE_LINE_SIZE)
#endif
adcsample_t samples[CACHE_SIZE_ALIGN(adcsample_t, 10)];
int main(void) {
halInit();
chSysInit();
palSetPadMode(GPIOA, 5, PAL_MODE_OUTPUT_PUSHPULL); // LED
palSetPadMode(GPIOA, 11, PAL_MODE_ALTERNATE(10)); // USB
palSetPadMode(GPIOA, 12, PAL_MODE_ALTERNATE(10));
palSetPadMode(GPIOA, 0, PAL_MODE_INPUT_ANALOG); // Channel A in (1in5)
palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG); // DAC out1, out2
palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG);
gpt.init();
//dDAC dac (DACD1, {
// .init = 0,
// .datamode = DAC_DHRM_12BIT_RIGHT,
// .cr = 0
//});
//dac.init();
//dac.writeX(0, 1024);
adcStart(&ADCD1, &adcConfig);
adcSTM32EnableVREF(&ADCD1);
sduObjectInit(&SDU1);
sduStart(&SDU1, &serusbcfg);
usbDisconnectBus(serusbcfg.usbp);
chThdSleepMilliseconds(1500);
usbStart(serusbcfg.usbp, &usbcfg);
usbConnectBus(serusbcfg.usbp);
while (true) {
if (SDU1.config->usbp->state == USB_ACTIVE) {
BaseSequentialStream *bss = (BaseSequentialStream *)&SDU1;
char c = 0;
if (streamRead(bss, (uint8_t *)&c, 1) > 0 && c == 's') {
adcFinished = false;
adcStartConversion(&ADCD1, &adcGroupConfig, samples, 10);
gpt.startContinuous(100);
while (!adcFinished);
for (int i = 0; i < 10; i++) {
uint8_t str[5] = {
static_cast<uint8_t>(samples[i] / 1000 % 10 + '0'),
static_cast<uint8_t>(samples[i] / 100 % 10 + '0'),
static_cast<uint8_t>(samples[i] / 10 % 10 + '0'),
static_cast<uint8_t>(samples[i] % 10 + '0'),
' '
};
streamWrite(bss, str, 5);
}
streamWrite(bss, (uint8_t *)"\r\n", 2);
}
}
chThdSleepMilliseconds(250);
}
}
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