sleeponexit; give up on fast clock
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7fad01e939
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6463ae4174
@ -42,7 +42,7 @@
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#define STM32_CLOCK_DYNAMIC FALSE
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#define STM32_VOS STM32_VOS_RANGE2
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#define STM32_PWR_CR2 (STM32_PVDRT_LEV0 | STM32_PVDFT_LEV0 | STM32_PVDE_DISABLED)
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#define STM32_PWR_CR3 (PWR_CR3_EIWUL)
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#define STM32_PWR_CR3 (PWR_CR3_EIWUL | PWR_CR3_ENB_ULP)
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#define STM32_PWR_CR4 (0U)
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#define STM32_PWR_PUCRA (0U)
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#define STM32_PWR_PDCRA (0U)
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@ -63,8 +63,8 @@
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#define STM32_PLLSRC STM32_PLLSRC_NOCLOCK
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#define STM32_PLLM_VALUE 2
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#define STM32_PLLN_VALUE 8
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#define STM32_PLLP_VALUE 4
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#define STM32_PLLQ_VALUE 4
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#define STM32_PLLP_VALUE 32
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#define STM32_PLLQ_VALUE 8
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#define STM32_PLLR_VALUE 4
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#define STM32_HPRE STM32_HPRE_DIV1
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#define STM32_PPRE STM32_PPRE_DIV4
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@ -206,7 +206,7 @@
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* ST driver system settings.
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*/
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#define STM32_ST_IRQ_PRIORITY 2
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#define STM32_ST_USE_TIMER 2
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#define STM32_ST_USE_TIMER 17
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/*
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* TRNG driver system settings.
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44
main.cpp
44
main.cpp
@ -60,30 +60,6 @@ static constexpr I2SConfig i2sConfig = {
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/* I2SPR */ (I2SPRval / 2) | ((I2SPRval & 1) ? SPI_I2SPR_ODD : 0)
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};
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//static const halclkcfg_t halClockDefault = {
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// .pwr_cr1 = PWR_CR1_VOS_0,
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// .pwr_cr2 = STM32_PWR_CR2,
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// .rcc_cr = RCC_CR_PLLON | RCC_CR_HSION,
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// .rcc_cfgr = (6 << RCC_CFGR_PPRE_Pos) | (1 << RCC_CFGR_HPRE_Pos) | RCC_CFGR_SW_PLL,
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// .rcc_pllcfgr = (STM32_PLLR_VALUE << RCC_PLLCFGR_PLLR_Pos) | RCC_PLLCFGR_PLLREN |
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// (STM32_PLLN_VALUE << RCC_PLLCFGR_PLLN_Pos) |
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// ((STM32_PLLM_VALUE - 1) << RCC_PLLCFGR_PLLM_Pos) |
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// RCC_PLLCFGR_PLLSRC_HSI,
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// .flash_acr = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | (2 << FLASH_ACR_LATENCY_Pos)
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//};
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//
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//static const halclkcfg_t halClockSleep = {
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// .pwr_cr1 = PWR_CR1_VOS_0,
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// .pwr_cr2 = STM32_PWR_CR2,
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// .rcc_cr = RCC_CR_PLLON | RCC_CR_HSION,
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// .rcc_cfgr = (0 << RCC_CFGR_PPRE_Pos) | (10 << RCC_CFGR_HPRE_Pos) | RCC_CFGR_SW_PLL,
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// .rcc_pllcfgr = (STM32_PLLR_VALUE << RCC_PLLCFGR_PLLR_Pos) | RCC_PLLCFGR_PLLREN |
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// (STM32_PLLN_VALUE << RCC_PLLCFGR_PLLN_Pos) |
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// ((STM32_PLLM_VALUE - 1) << RCC_PLLCFGR_PLLM_Pos) |
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// RCC_PLLCFGR_PLLSRC_HSI,
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// .flash_acr = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | (2 << FLASH_ACR_LATENCY_Pos)
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//};
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int main(void)
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{
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halInit();
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@ -104,21 +80,11 @@ int main(void)
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i2sStart(&I2SD1, &i2sConfig);
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i2sStartExchange(&I2SD1);
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i2sReady.store(false);
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uint8_t strbuf[7] = { 0, 0, 0, 'd', 'B', '\n', '\0' };
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for (;;) {
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//if (halClockSwitchMode(&halClockSleep)) {
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// sdWrite(&SD2, (uint8_t *)"sleepf\n", 7);
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// osalThreadSleepMilliseconds(5000);
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//}
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while (!i2sReady.load())
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asm("wfi");
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i2sReady.store(false);
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//if (halClockSwitchMode(&halClockDefault)) {
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// sdWrite(&SD2, (uint8_t *)"sleepf\n", 7);
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// osalThreadSleepMilliseconds(5000);
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//}
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SCB->SCR |= SCB_SCR_SLEEPONEXIT_Msk;
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__WFI();
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palSetPad(GPIOB, 7);
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const sos_t Leq_RMS = qfp_fsqrt(Leq_sum_sqr / qfp_uint2float(Leq_samples));
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@ -145,7 +111,8 @@ int32_t fixsample(uint32_t s) {
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__attribute__((section(".data")))
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void i2sCallback(I2SDriver *i2s)
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{
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//halClockSwitchMode(&halClockDefault);
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if (i2sReady.load())
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return;
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palSetPad(GPIOB, 7);
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const auto halfsize = i2sBuffer.size() / 2;
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@ -166,9 +133,8 @@ void i2sCallback(I2SDriver *i2s)
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// Wakeup main thread for dB calculation every second
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if (Leq_samples >= SAMPLE_RATE / I2S_STRIDE) {
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i2sReady.store(true);
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SCB->SCR &= ~SCB_SCR_SLEEPONEXIT_Msk;
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}
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palClearPad(GPIOB, 7);
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//halClockSwitchMode(&halClockSleep);
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}
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@ -29,7 +29,7 @@
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* @brief Frequency in Hertz of the system tick.
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*/
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#if !defined(OSAL_ST_FREQUENCY) || defined(__DOXYGEN__)
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#define OSAL_ST_FREQUENCY 20
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#define OSAL_ST_FREQUENCY 1000
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#endif
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/**
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