hasslesstech
/
ak-kr-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

94
Core/Src/MP45DT02.c
View File

@ -4,7 +4,10 @@
#define SAMPLE_AMOUNT 256 #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) int MP45DT02_run_test(void)
{ {
@ -14,66 +17,67 @@ int MP45DT02_run_test(void)
uint16_t sample_buffer[SAMPLE_AMOUNT]; uint16_t sample_buffer[SAMPLE_AMOUNT];
for (size_t t = 0; t < 5; t++) { 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++) { for (size_t i = 0; i < SAMPLE_AMOUNT; i++) {
sample_buffer[i] = 0; sample_buffer[i] = 0;
for (size_t j = 0; j < 16; j++) { 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++) {
asm("nop"); 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");
asm("nop");
GPIOB->BSRR = GPIO_PIN_10;
}
sample_buffer[i] <<= 1; sample_buffer[i] <<= 1;
sample_buffer[i] |= HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_3); sample_buffer[i] |= (GPIOC->IDR & (1 << 3)) >> 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");
} }
} }
struct TestResult res = {};
// look for zeros
for (size_t i = 0; i < SAMPLE_AMOUNT / 2; i++) for (size_t i = 0; i < SAMPLE_AMOUNT / 2; i++)
if (((uint32_t *) sample_buffer)[i]) { if (~((uint32_t *) sample_buffer)[i]) {
DISPLAY_CLEAR; res.lo_present = 1;
display_write_data_seq("MP45DT02 Mic"); break;
}
if (!t) {
DISPLAY_SET_CURSOR(1, 4); // look for ones
display_write_data_seq("OK"); for (size_t i = 0; i < SAMPLE_AMOUNT / 2; i++)
} else { if (((uint32_t *) sample_buffer)[i]) {
DISPLAY_SET_CURSOR(1, 4); res.hi_present = 1;
display_write_data_byte('0' + t); break;
display_write_data_seq(" 0 samples");
}
return 0;
} }
// if ended up here, then no samples equaled to 1; that is not a good sign
DISPLAY_CLEAR; DISPLAY_CLEAR;
display_write_data_seq("MP45DT02 Mic"); display_write_data_seq("MP45DT02 Mic");
if (t) {
DISPLAY_SET_CURSOR(1, 14);
display_write_data_byte('T');
display_write_data_byte('0' + t + 1);
}
DISPLAY_SET_CURSOR(1, 4); DISPLAY_SET_CURSOR(1, 4);
display_write_data_byte('1' + t); if (res.lo_present & res.hi_present) {
display_write_data_seq("/5: all zeros"); display_write_data_seq("OK");
return 0;
HAL_Delay(1000); } else if (res.lo_present) {
display_write_data_seq("ALWAYS LO");
} else if (res.hi_present) {
display_write_data_seq("ALWAYS HI");
}
} }
// 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; 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; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct); HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : PB10 PB7 */ /*Configure GPIO pin : PB10 */
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_7; GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL; 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); HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : PD11 */ /*Configure GPIO pin : PD11 */
@ -621,6 +621,13 @@ static void MX_GPIO_Init(void)
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct); 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 BEGIN MX_GPIO_Init_2 */
/* USER CODE END 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 PA7.Signal=ETH_CRS_DV
PB1.Locked=true PB1.Locked=true
PB1.Signal=ADCx_IN9 PB1.Signal=ADCx_IN9
PB10.GPIOParameters=GPIO_Speed
PB10.GPIO_Speed=GPIO_SPEED_FREQ_HIGH
PB10.Locked=true PB10.Locked=true
PB10.Signal=GPIO_Output PB10.Signal=GPIO_Output
PB11.Mode=RMII PB11.Mode=RMII