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noisecard
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Merge pull request 'pcb-bringup' (#1) from pcb-bringup into main

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Reviewed-on: #1
main
Clyne 3 months ago
parent 6463ae4174 67bdf76f19
commit 22c0650420
8 changed files with 125 additions and 75 deletions
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2
.gitignore vendored
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@ -3,4 +3,6 @@
*.pretty *.pretty
*.step *.step
build build
hardware/fp-info-cache
hardware/noisecard-backups
hardware/production hardware/production

17
board.c
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@ -40,6 +40,21 @@ void __early_init(void) {
* @note Add your board-specific code, if any. * @note Add your board-specific code, if any.
*/ */
void boardInit(void) { void boardInit(void) {
//palSetLineMode(LINE_LED_GREEN, PAL_MODE_OUTPUT_PUSHPULL); palSetLineMode(LINE_LED0, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED0);
palSetLineMode(LINE_LED1, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED1);
palSetLineMode(LINE_LED2, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED2);
palSetLineMode(LINE_LED3, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED3);
palSetLineMode(LINE_LED4, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED4);
palSetLineMode(LINE_LED5, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED5);
palSetLineMode(LINE_LED6, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED6);
palSetLineMode(LINE_LED7, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED7);
palSetLineMode(LINE_LED8, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED8);
palSetLineMode(LINE_LED9, PAL_MODE_OUTPUT_PUSHPULL); palSetLine(LINE_LED9);
palSetLineMode(LINE_TP1, PAL_MODE_OUTPUT_PUSHPULL); palClearLine(LINE_TP1);
palSetLineMode(LINE_I2S_SD, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_I2S_WS, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_I2S_CK, PAL_MODE_ALTERNATE(0));
} }

23
board.h
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@ -53,13 +53,22 @@
/* /*
* IO lines assignments. * IO lines assignments.
*/ */
//#define LINE_LED_GREEN PAL_LINE(GPIOA, 12U) #define LINE_I2S_SD PAL_LINE(GPIOA, 7U)
#define LINE_I2S_WS PAL_LINE(GPIOA, 4U)
#define LINE_I2S_SD PAL_LINE(GPIOA, 12U) // or PB5 #define LINE_I2S_CK PAL_LINE(GPIOA, 5U)
#define LINE_I2S_WS PAL_LINE(GPIOB, 0U)
#define LINE_I2S_CK PAL_LINE(GPIOA, 1U) #define LINE_TP1 PAL_LINE(GPIOA, 12U)
#define LINE_USART2_TX PAL_LINE(GPIOA, 14U) #define LINE_LED0 PAL_LINE(GPIOB, 7U)
#define LINE_LED1 PAL_LINE(GPIOC, 14U)
#define LINE_LED2 PAL_LINE(GPIOC, 15U)
#define LINE_LED3 PAL_LINE(GPIOA, 0U)
#define LINE_LED4 PAL_LINE(GPIOA, 1U)
#define LINE_LED5 PAL_LINE(GPIOA, 2U)
#define LINE_LED6 PAL_LINE(GPIOA, 3U)
#define LINE_LED7 PAL_LINE(GPIOA, 6U)
#define LINE_LED8 PAL_LINE(GPIOB, 0U)
#define LINE_LED9 PAL_LINE(GPIOB, 3U)
/* /*
* I/O ports initial setup, this configuration is established soon after reset * I/O ports initial setup, this configuration is established soon after reset

2
cfg/halconf.h
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@ -142,7 +142,7 @@
* @brief Enables the SERIAL subsystem. * @brief Enables the SERIAL subsystem.
*/ */
#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__) #if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
#define HAL_USE_SERIAL TRUE #define HAL_USE_SERIAL FALSE
#endif #endif
/** /**

2
cfg/mcuconf.h
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@ -172,7 +172,7 @@
* SERIAL driver system settings. * SERIAL driver system settings.
*/ */
#define STM32_SERIAL_USE_USART1 FALSE #define STM32_SERIAL_USE_USART1 FALSE
#define STM32_SERIAL_USE_USART2 TRUE #define STM32_SERIAL_USE_USART2 FALSE
#define STM32_SERIAL_USE_LPUART1 FALSE #define STM32_SERIAL_USE_LPUART1 FALSE
/* /*

2
hardware/noisecard.kicad_pcb
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@ -7416,7 +7416,7 @@
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62
hardware/noisecard.kicad_sch
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(property "Reference" "C1" (at 102.87 33.655 0) (property "Reference" "C1" (at 102.87 33.655 0)
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@ -2253,8 +2253,8 @@
(property "Part Number" "APTD1608LSURCK" (at 214.63 121.92 0) (property "Part Number" "APTD1608LSURCK" (at 214.63 121.92 0)
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90
main.cpp
Unescape Escape View File

@ -34,7 +34,7 @@ static constexpr auto MIC_BITS = 18u;
static constexpr auto SAMPLE_RATE = 48000u; static constexpr auto SAMPLE_RATE = 48000u;
static constexpr unsigned I2S_BUFSIZ = 1024; static constexpr unsigned I2S_BUFSIZ = 1024;
static constexpr unsigned I2S_STRIDE = 16; static constexpr unsigned I2S_USESIZ = 16;
// Calculate reference amplitude value at compile time // Calculate reference amplitude value at compile time
static const auto MIC_REF_AMPL = sos_t((1 << (MIC_BITS - 1)) - 1) * static const auto MIC_REF_AMPL = sos_t((1 << (MIC_BITS - 1)) - 1) *
@ -45,6 +45,7 @@ static std::array<uint32_t, I2S_BUFSIZ> i2sBuffer;
static sos_t Leq_sum_sqr (0.f); static sos_t Leq_sum_sqr (0.f);
static unsigned Leq_samples = 0; static unsigned Leq_samples = 0;
static void blinkDb(int db);
static void i2sCallback(I2SDriver *i2s); static void i2sCallback(I2SDriver *i2s);
static constexpr unsigned I2SPRval = 16'000'000 / SAMPLE_RATE / 32 / 2; static constexpr unsigned I2SPRval = 16'000'000 / SAMPLE_RATE / 32 / 2;
@ -64,45 +65,66 @@ int main(void)
{ {
halInit(); halInit();
osalSysEnable(); osalSysEnable();
osalThreadSleepMilliseconds(2000);
palSetPadMode(GPIOB, 7, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOF, 2, PAL_MODE_UNCONNECTED);
palSetLineMode(LINE_I2S_SD, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_I2S_WS, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_I2S_CK, PAL_MODE_ALTERNATE(0));
palSetLineMode(LINE_USART2_TX, PAL_MODE_ALTERNATE(1));
sdStart(&SD2, NULL);
sdWrite(&SD2, (uint8_t *)"Noisemeter\n", 11);
osalThreadSleepMilliseconds(2);
i2sReady.store(true);
i2sStart(&I2SD1, &i2sConfig); i2sStart(&I2SD1, &i2sConfig);
i2sStartExchange(&I2SD1); i2sStartExchange(&I2SD1);
// Microphone warmup time
osalThreadSleepMilliseconds(140);
// Reach filter delay steady state
i2sReady.store(false);
osalThreadSleepMilliseconds(120);
// Discard initial readings
Leq_sum_sqr = 0.f;
Leq_samples = 0;
uint8_t strbuf[7] = { 0, 0, 0, 'd', 'B', '\n', '\0' };
for (;;) { for (;;) {
i2sReady.store(false); i2sReady.store(false);
SCB->SCR |= SCB_SCR_SLEEPONEXIT_Msk; SCB->SCR |= SCB_SCR_SLEEPONEXIT_Msk;
//palClearLine(LINE_TP1);
__WFI(); __WFI();
//palSetLine(LINE_TP1);
palSetPad(GPIOB, 7); const auto sum_sqr = std::exchange(Leq_sum_sqr, sos_t(0.f));
const sos_t Leq_RMS = qfp_fsqrt(Leq_sum_sqr / qfp_uint2float(Leq_samples)); const auto count = std::exchange(Leq_samples, 0);
const sos_t Leq_RMS = qfp_fsqrt(sum_sqr / qfp_uint2float(count));
const sos_t Leq_dB = MIC_OFFSET_DB + MIC_REF_DB + sos_t(20.f) * const sos_t Leq_dB = MIC_OFFSET_DB + MIC_REF_DB + sos_t(20.f) *
qfp_flog10(Leq_RMS / MIC_REF_AMPL); qfp_flog10(Leq_RMS / MIC_REF_AMPL);
Leq_sum_sqr = sos_t(0.f); const auto n = std::clamp(qfp_float2int(Leq_dB), 0, 999);
Leq_samples = 0; blinkDb(n);
auto n = std::clamp(qfp_float2int(Leq_dB), 0, 999);
strbuf[2] = n % 10 + '0'; n /= 10;
strbuf[1] = n % 10 + '0'; n /= 10;
strbuf[0] = n ? n + '0' : ' ';
sdWrite(&SD2, strbuf, sizeof(strbuf));
osalThreadSleepMilliseconds(2);
palClearPad(GPIOB, 7);
} }
} }
void blinkDb(int db)
{
auto line = LINE_LED0;
if (db < 45)
line = LINE_LED0;
else if (db < 55)
line = LINE_LED1;
else if (db < 65)
line = LINE_LED2;
else if (db < 75)
line = LINE_LED3;
else if (db < 82)
line = LINE_LED4;
else if (db < 87)
line = LINE_LED5;
else if (db < 92)
line = LINE_LED6;
else if (db < 97)
line = LINE_LED7;
else if (db < 102)
line = LINE_LED8;
else
line = LINE_LED9;
palClearLine(line);
osalThreadSleepMilliseconds(100);
palSetLine(line);
}
__attribute__((section(".data"))) __attribute__((section(".data")))
int32_t fixsample(uint32_t s) { int32_t fixsample(uint32_t s) {
return (int32_t)(((s & 0xFFFF) << 16) | (s >> 16)) >> (32 - MIC_BITS); return (int32_t)(((s & 0xFFFF) << 16) | (s >> 16)) >> (32 - MIC_BITS);
@ -114,27 +136,29 @@ void i2sCallback(I2SDriver *i2s)
if (i2sReady.load()) if (i2sReady.load())
return; return;
palSetPad(GPIOB, 7); //palSetLine(LINE_TP1);
const auto halfsize = i2sBuffer.size() / 2; const auto halfsize = i2sBuffer.size() / 2;
const auto source = i2sBuffer.data() + (i2sIsBufferComplete(i2s) ? halfsize : 0); const auto source = i2sBuffer.data() + (i2sIsBufferComplete(i2s) ? halfsize : 0);
auto samples = reinterpret_cast<sos_t *>(source); auto samples = reinterpret_cast<sos_t *>(source);
std::ranges::copy( std::ranges::copy(
std::views::counted(source, halfsize / I2S_STRIDE) std::views::counted(source, I2S_USESIZ * 2)
| std::ranges::views::stride(2) | std::ranges::views::stride(2)
| std::views::transform([](uint32_t s) { return sos_t(qfp_int2float_asm(fixsample(s))); }), | std::views::transform([](uint32_t s) { return sos_t(qfp_int2float_asm(fixsample(s))); }),
samples); samples);
auto samps = std::views::counted(samples, halfsize / (2 * I2S_STRIDE)); auto samps = std::views::counted(samples, I2S_USESIZ);
// Accumulate Leq sum // Accumulate Leq sum
MIC_EQUALIZER.filter(samps); MIC_EQUALIZER.filter(samps);
Leq_sum_sqr += WEIGHTING.filter_sum_sqr(samps); Leq_sum_sqr += WEIGHTING.filter_sum_sqr(samps);
Leq_samples += samps.size(); Leq_samples += halfsize / 2;
// Wakeup main thread for dB calculation every second // Wakeup main thread for dB calculation every half second
if (Leq_samples >= SAMPLE_RATE / I2S_STRIDE) { if (Leq_samples >= SAMPLE_RATE / 2) {
i2sReady.store(true); i2sReady.store(true);
SCB->SCR &= ~SCB_SCR_SLEEPONEXIT_Msk; SCB->SCR &= ~SCB_SCR_SLEEPONEXIT_Msk;
} }
palClearPad(GPIOB, 7);
//palClearLine(LINE_TP1);
} }

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