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[MP45DT02] move away from I2S module in need to free up ETH hardware

This commit is contained in:
ІО-23 Шмуляр Олег 2025-05-10 12:23:15 +03:00
parent cae7fe1ed2
commit 6b38f3945e
3 changed files with 61 additions and 48 deletions
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86
Core/Src/MP45DT02.c
View File

@ -4,7 +4,10 @@
#define SAMPLE_AMOUNT 256
//extern I2S_HandleTypeDef hi2s2;
struct TestResult {
unsigned int lo_present:1;
unsigned int hi_present:1;
};
int MP45DT02_run_test(void)
{
@ -14,66 +17,67 @@ int MP45DT02_run_test(void)
uint16_t sample_buffer[SAMPLE_AMOUNT];
for (size_t t = 0; t < 5; t++) {
//HAL_I2S_Receive(&hi2s2, sample_buffer, SAMPLE_AMOUNT, 1000);
// gather samples
register unsigned int reset_value = (GPIO_PIN_10 << 16);
for (size_t i = 0; i < SAMPLE_AMOUNT; i++) {
sample_buffer[i] = 0;
for (size_t j = 0; j < 16; j++) {
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET);
for (int k = 0; k < 16; k++) {
GPIOB->BSRR = reset_value;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
GPIOB->BSRR = GPIO_PIN_10;
}
sample_buffer[i] <<= 1;
sample_buffer[i] |= HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_3);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_RESET);
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
sample_buffer[i] |= (GPIOC->IDR & (1 << 3)) >> 3;
}
}
struct TestResult res = {};
// look for zeros
for (size_t i = 0; i < SAMPLE_AMOUNT / 2; i++)
if (~((uint32_t *) sample_buffer)[i]) {
res.lo_present = 1;
break;
}
// look for ones
for (size_t i = 0; i < SAMPLE_AMOUNT / 2; i++)
if (((uint32_t *) sample_buffer)[i]) {
res.hi_present = 1;
break;
}
DISPLAY_CLEAR;
display_write_data_seq("MP45DT02 Mic");
if (!t) {
if (t) {
DISPLAY_SET_CURSOR(1, 14);
display_write_data_byte('T');
display_write_data_byte('0' + t + 1);
}
DISPLAY_SET_CURSOR(1, 4);
if (res.lo_present & res.hi_present) {
display_write_data_seq("OK");
} else {
DISPLAY_SET_CURSOR(1, 4);
display_write_data_byte('0' + t);
display_write_data_seq(" 0 samples");
}
return 0;
} else if (res.lo_present) {
display_write_data_seq("ALWAYS LO");
} else if (res.hi_present) {
display_write_data_seq("ALWAYS HI");
}
// if ended up here, then no samples equaled to 1; that is not a good sign
DISPLAY_CLEAR;
display_write_data_seq("MP45DT02 Mic");
DISPLAY_SET_CURSOR(1, 4);
display_write_data_byte('1' + t);
display_write_data_seq("/5: all zeros");
HAL_Delay(1000);
}
// t = 5, not a single 1 was recorded; microphone might be broken
DISPLAY_CLEAR;
display_write_data_seq("MP45DT02 Mic");
DISPLAY_SET_CURSOR(1, 4);
display_write_data_seq("NO ONES");
return 1;
}

13
Core/Src/main.c
View File

@ -598,11 +598,11 @@ static void MX_GPIO_Init(void)
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : PB10 PB7 */
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_7;
/*Configure GPIO pin : PB10 */
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : PD11 */
@ -621,6 +621,13 @@ static void MX_GPIO_Init(void)
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pin : PB7 */
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}

2
test1.ioc
View File

@ -99,6 +99,8 @@ PA7.Mode=RMII
PA7.Signal=ETH_CRS_DV
PB1.Locked=true
PB1.Signal=ADCx_IN9
PB10.GPIOParameters=GPIO_Speed
PB10.GPIO_Speed=GPIO_SPEED_FREQ_HIGH
PB10.Locked=true
PB10.Signal=GPIO_Output
PB11.Mode=RMII