record change in .cproject which seems impossible to revert

Current implementation contains full support for:
- transparent switching between direct and framebuffer rendering modes
- writing characters to framebuffers
- loading frame from memory to physical display

As well as partial support for instruction writes including:
- resetting the display (clears memory, sets cursor at 0:0, switches to increment mode)
- switching between increment/decrement modes
- setting cursor position

Core/Inc/24AA02E48.h

@@ -1,6 +1,6 @@
 #ifndef __EEPROM_24AA02E48
 #define __EEPROM_24AA02E48
 
-int EEPROM_24AA02E48_run_test(void);
+void EEPROM_24AA02E48_run_test(void);
 
 #endif

Core/Inc/CS43L22.h

@@ -1,7 +1,7 @@
 #ifndef __CS43L22
 #define __CS43L22
 
-int CS43L22_run_test(void);
+void CS43L22_run_test(void);
 void CS43L22_cleanup(void);
 
 #endif

Core/Inc/DNI.h

@@ -3,7 +3,7 @@
 
 extern ADC_HandleTypeDef hadc1;
 
-int DNI_show_celsius(void);
-int DNI_show_fahrenheit(void);
+void DNI_show_celsius(void);
+void DNI_show_fahrenheit(void);
 
 #endif

Core/Inc/LIS302DL.h

@@ -1,7 +1,7 @@
 #ifndef __LIS302DL
 #define __LIS302DL
 
-int LIS302DL_run_test(void);
-int LIS302DL_run_test_dynamic(void);
+void LIS302DL_run_test(void);
+void LIS302DL_run_test_dynamic(void);
 
 #endif

Core/Inc/LSM9DS1.h

@@ -1,8 +1,8 @@
 #ifndef __LSM9DS1
 #define __LSM9DS1
 
-int LSM9DS1_test_accel(void);
+void LSM9DS1_test_accel(void);
 void LSM9DS1_cleanup_accel(void);
-int LSM9DS1_test_magnet(void);
+void LSM9DS1_test_magnet(void);
 
 #endif

Core/Inc/MP45DT02.h

@@ -1,6 +1,6 @@
 #ifndef __MP45DT02
 #define __MP45DT02
 
-int MP45DT02_run_test(void);
+void MP45DT02_run_test(void);
 
 #endif

Core/Inc/PCA9685.h

@@ -1,7 +1,7 @@
 #ifndef __PCA9685
 #define __PCA9685
 
-int PCA9685_run_test(void);
+void PCA9685_run_test(void);
 void PCA9685_cleanup(void);
 
 #endif

Core/Inc/SST25VF016B.h

@@ -1,6 +1,6 @@
 #ifndef __SST25VF016B
 #define __SST25VF016B
 
-int SST25VF016B_run_test(void);
+void SST25VF016B_run_test(void);
 
 #endif

Core/Src/24AA02E48.c

@@ -4,7 +4,7 @@
 
 extern I2C_HandleTypeDef hi2c1;
 
-int EEPROM_24AA02E48_run_test(void)
+void EEPROM_24AA02E48_run_test(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("24AA02E48 EEPROM");
@@ -13,9 +13,9 @@ int EEPROM_24AA02E48_run_test(void)
 	size_t err_count = 0;
 
 	// write the Address Pointer register
-	uint8_t data_buffer[9];
-	data_buffer[8] = '\0';
-	data_buffer[0] = 0xF8;
+	uint8_t data_buffer[13];
+	data_buffer[12] = '\0';
+	data_buffer[0] = 0xF4;
 
 	for (size_t t = 0; t < 5; t++) {
 		op_result = HAL_I2C_Master_Transmit(&hi2c1, 0xA0, data_buffer, 1, 2000);
@@ -26,7 +26,7 @@ int EEPROM_24AA02E48_run_test(void)
 			DISPLAY_CLEAR;
 			display_write_data_seq("24AA02E48 EEPROM");
 
-			DISPLAY_SET_CURSOR(1, 4);
+			DISPLAY_SET_CURSOR(1, 0);
 			display_write_data_seq("W ");
 			display_write_data_byte('1' + t);
 			display_write_data_seq("/5 ");
@@ -52,7 +52,7 @@ int EEPROM_24AA02E48_run_test(void)
 	}
 
 	for (size_t t = 0; t < 5; t++) {
-		op_result = HAL_I2C_Master_Receive(&hi2c1, 0xA1, data_buffer, 8, 2000);
+		op_result = HAL_I2C_Master_Receive(&hi2c1, 0xA1, data_buffer, 12, 2000);
 
 		if (op_result) {
 			err_count++;
@@ -60,7 +60,7 @@ int EEPROM_24AA02E48_run_test(void)
 			DISPLAY_CLEAR;
 			display_write_data_seq("24AA02E48 EEPROM");
 
-			DISPLAY_SET_CURSOR(1, 4);
+			DISPLAY_SET_CURSOR(1, 0);
 			display_write_data_seq("R ");
 			display_write_data_byte('1' + t);
 			display_write_data_seq("/5 ");
@@ -89,18 +89,14 @@ int EEPROM_24AA02E48_run_test(void)
 	display_write_data_seq("24AA02E48 EEPROM");
 
 	if (err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
-		display_write_data_byte('0' + (err_count / 10) % 10);
+		DISPLAY_SET_CURSOR(1, 0);
+		display_write_data_byte('0' + err_count / 10 % 10);
 		display_write_data_byte('0' + err_count % 10);
 		display_write_data_seq("E ");
 		display_write_data_seq((char *) data_buffer);
-
-		return 1;
 	} else {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK ");
 		display_write_data_seq((char *) data_buffer);
-
-		return 0;
 	}
 }

Core/Src/CS43L22.c

@@ -4,7 +4,7 @@
 
 extern I2C_HandleTypeDef hi2c1;
 
-int CS43L22_run_test(void)
+void CS43L22_run_test(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("CS43L22 Audio");
@@ -54,16 +54,12 @@ int CS43L22_run_test(void)
 	display_write_data_seq("CS43L22 Audio");
 
 	if (err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_byte('0' + err_count % 10);
 		display_write_data_seq(" Errors");
-
-		return 1;
 	} else {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK");
-
-		return 0;
 	}
 }
 

Core/Src/DNI.c

@@ -3,23 +3,25 @@
 #include "lcd.h"
 #include "DNI.h"
 
-static int DNI_read(void)
+static uint32_t DNI_read(void)
 {
 	HAL_ADC_Start(&hadc1);
+	if (HAL_ADC_PollForConversion(&hadc1, 100) != HAL_OK)
+		PANIC(0x4000);
 
-	HAL_StatusTypeDef s = HAL_ADC_PollForConversion(&hadc1, 100);
-
-	if (HAL_OK != s)
-		return -s;
-	else
 	return HAL_ADC_GetValue(&hadc1);
 }
 
-static int DNI_convert_to_celsius(int value)
+static int DNI_convert_to_celsius(uint32_t value)
 {
 	return (2512 - value) << 2;
 }
 
+static int DNI_convert_to_fahrenheit(uint32_t value)
+{
+	return (2953 - value) * 50 / 7;
+}
+
 static void DNI_print(int temperature)
 {
 	int add_sign = temperature < 0;
@@ -48,68 +50,49 @@ static void DNI_print(int temperature)
 	}
 
 	if (add_sign) {
-		DISPLAY_SET_CURSOR(1, 9);
+		DISPLAY_SET_CURSOR(1, 0);
 		display_write_data_byte('-');
 	}
 }
 
 static void DNI_print_celsius(int temperature)
 {
-	DISPLAY_SET_CURSOR(1, 15);
+	DISPLAY_SET_CURSOR(1, 7);
 	DISPLAY_SET_DECREMENT;
 	display_write_data_seq("C ");
 
 	DNI_print(temperature);
 }
 
-static void print_ok(void)
+static void DNI_print_fahrenheit(int temperature)
 {
-	DISPLAY_SET_CURSOR(1, 4);
-	DISPLAY_SET_INCREMENT;
-	display_write_data_seq("OK");
+	DISPLAY_SET_CURSOR(1, 7);
+	DISPLAY_SET_DECREMENT;
+	display_write_data_seq("F ");
+
+	DNI_print(temperature);
 }
 
-static void print_error(int err_code)
-{
-	DISPLAY_SET_CURSOR(1, 4);
-	DISPLAY_SET_INCREMENT;
-
-	switch (err_code) {
-	case HAL_OK:
-		break;
-	case HAL_ERROR:
-		display_write_data_seq("HAL_ERROR");
-		break;
-	case HAL_BUSY:
-		display_write_data_seq("HAL_BUSY");
-		break;
-	case HAL_TIMEOUT:
-		display_write_data_seq("HAL_TIMEOUT");
-		break;
-	default:
-		display_write_data_seq("WRONG ERROR");
-		break;
-	}
-}
-
-int DNI_show_celsius(void)
+void DNI_show_celsius(void)
 {
 	DISPLAY_CLEAR;
 	DISPLAY_SET_INCREMENT;
 
 	display_write_data_seq("DNI Temperature");
 
-	int value = DNI_read();
-
-	if (value < 0) {
-		print_error(-value);
-		return 1;
-	} else {
+	uint32_t value = DNI_read();
 	int temp = DNI_convert_to_celsius(value);
 	DNI_print_celsius(temp);
-
-		print_ok();
-
-		return 0;
 }
+
+void DNI_show_fahrenheit(void)
+{
+	DISPLAY_CLEAR;
+	DISPLAY_SET_INCREMENT;
+
+	display_write_data_seq("DNI Temperature");
+
+	uint32_t value = DNI_read();
+	int temp = DNI_convert_to_fahrenheit(value);
+	DNI_print_fahrenheit(temp);
 }

Core/Src/LIS302DL.c

@@ -33,7 +33,7 @@ static void print_error_message(HAL_StatusTypeDef result, size_t *err_count, siz
 	DISPLAY_CLEAR;
 	display_write_data_seq("LIS302DL Accel ");
 	display_write_data_seq(postfix);
-	DISPLAY_SET_CURSOR(1, 4);
+	DISPLAY_SET_CURSOR(1, 0);
 	display_write_data_seq(prefix);
 	display_write_data_byte(' ');
 
@@ -105,7 +105,7 @@ static void retrieve_data(size_t *err_count, uint8_t *data_xyz, char *postfix)
 	FAILSAFE_POST_OP("RZ");
 }
 
-int LIS302DL_run_test(void)
+void LIS302DL_run_test(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("LIS302DL Accel");
@@ -125,21 +125,17 @@ int LIS302DL_run_test(void)
 
 	// print the execution stats
 	if (err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
-		display_write_data_byte('0' + (err_count / 10) % 10);
+		DISPLAY_SET_CURSOR(1, 0);
+		display_write_data_byte('0' + err_count / 10 % 10);
 		display_write_data_byte('0' + err_count % 10);
 		display_write_data_seq(" errs");
-
-		return 1;
 	} else {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK");
-
-		return 0;
 	}
 }
 
-int LIS302DL_run_test_dynamic(void)
+void LIS302DL_run_test_dynamic(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("LIS302DL Accel D");
@@ -152,23 +148,19 @@ int LIS302DL_run_test_dynamic(void)
 	DISPLAY_CLEAR;
 	display_write_data_seq("LIS302DL Accel D");
 
-	// print the execution stats
-	if (err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
-		display_write_data_byte('0' + err_count / 10 % 10);
-		display_write_data_byte('0' + err_count % 10);
-		display_write_data_seq(" errs");
-
-		return 1;
-	} else {
-		DISPLAY_SET_CURSOR(1, 4);
-		display_write_data_seq("OK");
-
 	// output retrieved values
 	print_at(data_xyz[2], 14);
 	print_at(data_xyz[1], 11);
 	print_at(data_xyz[0], 8);
 
-		return 0;
+	// print the execution stats
+	if (err_count) {
+		DISPLAY_SET_CURSOR(1, 0);
+		display_write_data_byte('0' + err_count / 10 % 10);
+		display_write_data_byte('0' + err_count % 10);
+		display_write_data_seq(" errs");
+	} else {
+		DISPLAY_SET_CURSOR(1, 1);
+		display_write_data_seq("OK");
 	}
 }

Core/Src/LSM9DS1.c

@@ -10,7 +10,7 @@ extern I2C_HandleTypeDef hi2c1;
 
 static void print_error_message(HAL_StatusTypeDef result, size_t *err_count, size_t t, char *prefix)
 {
-	DISPLAY_SET_CURSOR(1, 4);
+	DISPLAY_SET_CURSOR(1, 0);
 	display_write_data_seq(prefix);
 	display_write_data_byte(' ');
 
@@ -52,7 +52,7 @@ static void print_error_magnet(HAL_StatusTypeDef result, size_t *err_count, size
 	print_error_message(result, err_count, t, prefix);
 }
 
-int LSM9DS1_test_accel(void)
+void LSM9DS1_test_accel(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("LSM9DS1 Accel");
@@ -82,17 +82,13 @@ int LSM9DS1_test_accel(void)
 	FAILSAFE_POST_OP_ACCEL("R");
 
 	if (!err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK");
-
-		return 0;
 	} else {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 0);
 		display_write_data_byte('0' + ((err_count / 10) % 10));
 		display_write_data_byte('0' + (err_count % 10));
 		display_write_data_seq(" errors");
-
-		return 1;
 	}
 }
 
@@ -103,7 +99,7 @@ void LSM9DS1_cleanup_accel(void)
 	HAL_I2C_Master_Transmit(&hi2c1, 0xD6, buffer, 2, 1000);
 }
 
-int LSM9DS1_test_magnet(void)
+void LSM9DS1_test_magnet(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("LSM9DS1 Magnet");
@@ -124,16 +120,12 @@ int LSM9DS1_test_magnet(void)
 	FAILSAFE_POST_OP_MAGNET("R");
 
 	if (!err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK");
-
-		return 0;
 	} else {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 0);
 		display_write_data_byte('0' + ((err_count / 10) % 10));
 		display_write_data_byte('0' + (err_count % 10));
 		display_write_data_seq(" errors");
-
-		return 1;
 	}
 }

Core/Src/MP45DT02.c

@@ -6,7 +6,7 @@
 
 extern I2S_HandleTypeDef hi2s2;
 
-int MP45DT02_run_test(void)
+void MP45DT02_run_test(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("MP45DT02 Mic");
@@ -22,24 +22,24 @@ int MP45DT02_run_test(void)
 				display_write_data_seq("MP45DT02 Mic");
 
 				if (!t) {
-					DISPLAY_SET_CURSOR(1, 4);
+					DISPLAY_SET_CURSOR(1, 1);
 					display_write_data_seq("OK");
 				} else {
-					DISPLAY_SET_CURSOR(1, 4);
+					DISPLAY_SET_CURSOR(1, 0);
 					display_write_data_byte('0' + t);
-					display_write_data_seq(" 0 samples");
+					display_write_data_seq(" full 0 samples");
 				}
 
-				return 0;
+				return;
 			}
 
 		// 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_SET_CURSOR(1, 0);
 		display_write_data_byte('1' + t);
-		display_write_data_seq("/5: all zeros");
+		display_write_data_seq("/5: no 1 sampled");
 
 		HAL_Delay(1000);
 	}
@@ -48,8 +48,6 @@ int MP45DT02_run_test(void)
 	DISPLAY_CLEAR;
 	display_write_data_seq("MP45DT02 Mic");
 
-	DISPLAY_SET_CURSOR(1, 4);
-	display_write_data_seq("NO ONES");
-
-	return 1;
+	DISPLAY_SET_CURSOR(1, 0);
+	display_write_data_seq("No good samples!");
 }

Core/Src/PCA9685.c

@@ -4,7 +4,7 @@
 
 extern I2C_HandleTypeDef hi2c1;
 
-int PCA9685_run_test(void)
+void PCA9685_run_test(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("PCA9685 PWM");
@@ -30,7 +30,7 @@ int PCA9685_run_test(void)
 
 				DISPLAY_CLEAR;
 				display_write_data_seq("PCA9685 PWM");
-				DISPLAY_SET_CURSOR(1, 4);
+				DISPLAY_SET_CURSOR(1, 0);
 
 				display_write_data_seq("B");
 				display_write_data_byte('0' + i);
@@ -40,8 +40,6 @@ int PCA9685_run_test(void)
 				display_write_data_seq("/5 ");
 
 				switch (op_result) {
-				case HAL_OK:
-					break;
 				case HAL_ERROR:
 					display_write_data_seq("ERROR");
 					break;
@@ -64,17 +62,13 @@ int PCA9685_run_test(void)
 	display_write_data_seq("PCA9685 PWM");
 
 	if (err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 0);
 		display_write_data_byte('0' + err_count / 10 % 10);
 		display_write_data_byte('0' + err_count % 10);
 		display_write_data_seq(" errors");
-
-		return 1;
 	} else {
-		DISPLAY_SET_CURSOR(1, 4);
-		display_write_data_seq("OK");
-
-		return 0;
+		DISPLAY_SET_CURSOR(1, 1);
+		display_write_data_seq("OK  OUT ENABLED");
 	}
 }
 

Core/Src/SST25VF016B.c

@@ -4,14 +4,13 @@
 
 extern SPI_HandleTypeDef hspi1;
 
-int SST25VF016B_run_test(void)
+void SST25VF016B_run_test(void)
 {
 	DISPLAY_CLEAR;
 	display_write_data_seq("SST25VF016B Flas");
 
 	HAL_StatusTypeDef op_result;
 	size_t err_count = 0;
-	size_t chip_id_fault = 0;
 
 	uint8_t tx_buffer[8] = {0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 	uint8_t rx_buffer[9];
@@ -30,7 +29,7 @@ int SST25VF016B_run_test(void)
 			DISPLAY_CLEAR;
 			display_write_data_seq("SST25VF016B Flas");
 
-			DISPLAY_SET_CURSOR(1, 4);
+			DISPLAY_SET_CURSOR(1, 0);
 			display_write_data_byte('1' + t);
 			display_write_data_seq("/5 ");
 
@@ -47,6 +46,8 @@ int SST25VF016B_run_test(void)
 				display_write_data_seq("TIMEOUT");
 				break;
 			}
+
+			HAL_Delay(2000);
 		} else {
 			break;
 		}
@@ -58,22 +59,17 @@ int SST25VF016B_run_test(void)
 	display_write_data_seq("SST25VF016B Flas");
 
 	if (err_count) {
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_byte('0' + err_count % 10);
 		display_write_data_seq(" Errors");
-
-		return 1;
 	} else {
 		for (size_t i = 0; i < 4; i += 2) {
 			// odd reads MUST result in 0xBF
 			if (rx_buffer[4+i] != 0xBF) {
-				DISPLAY_SET_CURSOR(1, 4);
+				DISPLAY_SET_CURSOR(1, 0);
 				display_write_data_byte('B');
 				display_write_data_byte('1'+i);
 				display_write_data_seq(" WRONG");
-
-				chip_id_fault = 1;
-
 				goto write_retrieved_data;
 			}
 		}
@@ -81,18 +77,15 @@ int SST25VF016B_run_test(void)
 		for (size_t i = 1; i < 4; i += 2) {
 			// even reads MUST result in 0x41
 			if (rx_buffer[4+i] != 0x41) {
-				DISPLAY_SET_CURSOR(1, 4);
+				DISPLAY_SET_CURSOR(1, 0);
 				display_write_data_byte('B');
 				display_write_data_byte('1'+i);
 				display_write_data_seq(" WRONG");
-
-				chip_id_fault = 1;
-
 				goto write_retrieved_data;
 			}
 		}
 
-		DISPLAY_SET_CURSOR(1, 4);
+		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK");
 	}
 
@@ -101,6 +94,4 @@ int SST25VF016B_run_test(void)
 	display_write_data_seq((char *) &(rx_buffer[4]));
 
 	HAL_GPIO_WritePin(GPIOD, GPIO_PIN_7, GPIO_PIN_SET);
-
-	return (err_count || chip_id_fault);
 }

Core/Src/lcd.c

@@ -136,12 +136,6 @@ static void display_write_data_byte_direct(uint8_t code)
 
 static void display_write_data_byte_framebuffer(uint8_t code)
 {
-	if (display_current_frame >= DISPLAY_FRAMES_AVAILABLE)
-		return;
-
-	if (((int) des.cursor_offset >= 32) || ((int) des.cursor_offset < 0))
-		return;
-
 	display_framebuffer[16*2*display_current_frame + des.cursor_offset] = (char) code;
 	des.cursor_offset += des.next ? -1 : 1;
 }

Core/Src/main.c

@@ -46,17 +46,6 @@
 #define WAIT_UNTIL_CB_PRESSED while (!HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) && HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_8))
 #define WAIT_UNTIL_CB_RELEASED while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) || !HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_8))
 
-#define UB (GPIOA->IDR & GPIO_PIN_0)
-#define SWT1 !(GPIOC->IDR & GPIO_PIN_11)
-#define SWT2 !(GPIOA->IDR & GPIO_PIN_15)
-#define SWT3 !(GPIOC->IDR & GPIO_PIN_9)
-#define SWT4 !(GPIOC->IDR & GPIO_PIN_6)
-#define SWT5 !(GPIOC->IDR & GPIO_PIN_8)
-
-#define WAIT_UNTIL_ALL_BUTTONS_RELEASED do {} while ( UB || SWT1 || SWT2 || SWT3 || SWT4 || SWT5 )
-
-#define LEN(x) ( sizeof(x) / sizeof((x)[0]) )
-
 /* USER CODE END PD */
 
 /* Private macro -------------------------------------------------------------*/
@@ -79,19 +68,22 @@ extern size_t display_current_frame;
 
 /* USER CODE BEGIN PV */
 
-static const int ((*executors[])(void)) = {
+void ((*executors[])(void)) = {
 		DNI_show_celsius,
+		DNI_show_fahrenheit,
 		PCA9685_run_test,
 		EEPROM_24AA02E48_run_test,
 		CS43L22_run_test,
 		SST25VF016B_run_test,
 		LIS302DL_run_test,
+		LIS302DL_run_test_dynamic,
 		MP45DT02_run_test,
 		LSM9DS1_test_accel,
 		LSM9DS1_test_magnet
 };
 
-static const void ((*cleanup_functions[])(void)) = {
+void ((*cleanup_functions[])(void)) = {
+		NULL,
 		NULL,
 		PCA9685_cleanup,
 		NULL,
@@ -99,10 +91,29 @@ static const void ((*cleanup_functions[])(void)) = {
 		NULL,
 		NULL,
 		NULL,
+		NULL,
 		LSM9DS1_cleanup_accel,
 		NULL
 };
 
+int delay_between_runs[] = {
+		250,
+		250,
+		-1,
+		-1,
+		-1,
+		-1,
+		-1,
+		200,
+		-1,
+		-1,
+		-1
+		};
+
+size_t current_executor_id = 0;
+
+size_t buttons_interrupt_enabled;
+
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -120,6 +131,132 @@ static void MX_I2S2_Init(void);
 /* Private user code ---------------------------------------------------------*/
 /* USER CODE BEGIN 0 */
 
+void switch_to_next_test(void)
+{
+	current_executor_id += 1;
+	current_executor_id %= 11;
+}
+
+void buttons_switch_to_interrupt(void)
+{
+	// save current executor ID
+	size_t tmp = current_executor_id;
+
+	// configure user button
+	GPIO_InitTypeDef GPIO_InitStruct = {0};
+	GPIO_InitStruct.Pin = GPIO_PIN_0;
+	GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+	HAL_NVIC_SetPriority(EXTI0_IRQn, 0, 0);
+	HAL_NVIC_EnableIRQ(EXTI0_IRQn);
+
+	// configure SW5 (alternative advancing method)
+	GPIO_InitStruct.Pin = GPIO_PIN_8;
+	GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+	HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0);
+	HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
+
+	// restore current executor ID
+	current_executor_id = tmp;
+
+	// set interrupt mode flag
+	buttons_interrupt_enabled = 1;
+}
+
+void buttons_switch_to_input(void)
+{
+	// configure user button
+	GPIO_InitTypeDef GPIO_InitStruct = {0};
+	GPIO_InitStruct.Pin = GPIO_PIN_0;
+	GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+	HAL_NVIC_DisableIRQ(EXTI0_IRQn);
+
+	// configure SW5 (alternative input method)
+	GPIO_InitStruct.Pin = GPIO_PIN_8;
+	GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+	HAL_NVIC_DisableIRQ(EXTI9_5_IRQn);
+
+	// clear interrupt mode flag
+	buttons_interrupt_enabled = 0;
+}
+
+void button_init_and_test(void)
+{
+	// letting the buttons be tested
+	display_write_data_seq("Fill any bar:");
+	DISPLAY_SET_CURSOR(1, 5);
+	display_write_data_seq("[-] [-----]");
+
+	size_t pressed_elements;
+
+	uint32_t sw_button_locations[5][2] = {
+			{GPIOC, GPIO_PIN_11},
+			{GPIOA, GPIO_PIN_15},
+			{GPIOC, GPIO_PIN_9},
+			{GPIOC, GPIO_PIN_6},
+			{GPIOC, GPIO_PIN_8}
+	};
+
+	do {
+		HAL_Delay(100);
+		pressed_elements = 0;
+
+		DISPLAY_SET_CURSOR(1, 6);
+
+		if (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0)) {
+			pressed_elements |= 0x20;
+			display_write_data_byte('*');
+		} else {
+			display_write_data_byte('-');
+		}
+
+		DISPLAY_SET_CURSOR(1, 10);
+
+		for (size_t i = 0; i < 5; i++) {
+			pressed_elements >>= 1;
+
+			size_t input = !HAL_GPIO_ReadPin(sw_button_locations[i][0], sw_button_locations[i][1]);
+
+			if (input) {
+				pressed_elements |= 0x20;
+				display_write_data_byte('*');
+			} else {
+				display_write_data_byte('-');
+			}
+		}
+	} while (!(((pressed_elements & 0x1) == 0x1) || ((pressed_elements & 0x3E) == 0x3E)));
+
+
+	// visual reaction to bar fill
+	DISPLAY_SET_CURSOR(0, 0);
+	display_write_data_seq("Release buttons");
+
+	GPIOD->ODR = 0x1000;
+	HAL_Delay(500);
+	GPIOD->ODR = 0x2000;
+	HAL_Delay(500);
+	GPIOD->ODR = 0x4000;
+	HAL_Delay(500);
+	GPIOD->ODR = 0x8000;
+	HAL_Delay(500);
+
+	// waiting for control buttons to be released
+	WAIT_UNTIL_CB_RELEASED;
+	GPIOD->ODR = 0x0000;
+	HAL_Delay(200);
+}
+
 /* USER CODE END 0 */
 
 /**
@@ -157,112 +294,112 @@ int main(void)
   MX_TIM2_Init();
   MX_I2S2_Init();
   /* USER CODE BEGIN 2 */
+  buttons_interrupt_enabled = 0;
 
-  GPIOD->BSRR = 0x1000;
+  HAL_TIM_Base_Start(&htim2);
+  TIM2->CNT = 0;
+  HAL_TIM_Base_Stop(&htim2);
+
+  GPIOD->ODR = 0x1000;
   display_init();
 
-  GPIOD->BSRR = 0xF000;
+  GPIOD->ODR = 0xF000;
+  button_init_and_test();
 
   // perform all tests
-  size_t successful_tests = 0;
-  size_t failed_tests = 0;
-
-  for (display_current_frame = 1; display_current_frame < LEN(executors)+1; display_current_frame++)
-  {
-	  DISPLAY_CLEAR;
-	  display_write_data_seq("Testing...");
-
-	  DISPLAY_SET_CURSOR(1, 2);
-	  display_write_data_seq("P:");
-	  display_write_data_byte('0' + (successful_tests / 10) % 10);
-	  display_write_data_byte('0' + (successful_tests) % 10);
-
-	  DISPLAY_SET_CURSOR(1, 10);
-	  display_write_data_seq("F:");
-	  display_write_data_byte('0' + (failed_tests / 10) % 10);
-	  display_write_data_byte('0' + (failed_tests) % 10);
-
   display_to_framebuffer();
 
-	  // test
-	  if (executors[display_current_frame-1]())
-		  failed_tests++;
-	  else
-		  successful_tests++;
-
-	  // cleanup (if required)
-	  if (cleanup_functions[display_current_frame-1])
-		  cleanup_functions[display_current_frame-1]();
-
-	  // write test number tag onto this framebuffer
-	  DISPLAY_SET_CURSOR(1, 0);
-	  DISPLAY_SET_INCREMENT;
-	  display_write_data_byte('T');
-	  display_write_data_byte('0' + (display_current_frame / 10) % 10);
-	  display_write_data_byte('0' + display_current_frame % 10);
-
-	  display_to_direct();
+  for (display_current_frame = 0; display_current_frame < 11; display_current_frame++)
+  {
+	  executors[display_current_frame]();
   }
 
-  // render final result to first framebuffer
-  display_to_framebuffer();
-  display_current_frame = 0;
-
-  DISPLAY_CLEAR;
-  if (successful_tests == LEN(executors))
-	  display_write_data_seq("All tests done!");
-  else
-	  display_write_data_seq("Failures found!");
-
-  DISPLAY_SET_CURSOR(1, 2);
-  display_write_data_seq("P:");
-  display_write_data_byte('0' + (successful_tests / 10) % 10);
-  display_write_data_byte('0' + (successful_tests) % 10);
-
-  DISPLAY_SET_CURSOR(1, 10);
-  display_write_data_seq("F:");
-  display_write_data_byte('0' + (failed_tests / 10) % 10);
-  display_write_data_byte('0' + (failed_tests) % 10);
-
   display_to_direct();
 
-  /* USER CODE END 2 */
+  display_current_frame = 0;
+
+  if (buttons_interrupt_enabled)
+	  buttons_switch_to_input();
 
-  /* Infinite loop */
-  /* USER CODE BEGIN WHILE */
   while (1) {
-	  WAIT_UNTIL_ALL_BUTTONS_RELEASED;
+	  // wait until all buttons are released
+	  while (
+			  (GPIOA->IDR & GPIO_PIN_0) ||
+			  !(GPIOC->IDR & GPIO_PIN_11) ||
+			  !(GPIOC->IDR & GPIO_PIN_8) ||
+			  !(GPIOC->IDR & GPIO_PIN_9) ||
+			  !(GPIOC->IDR & GPIO_PIN_6) ||
+			  !(GPIOA->IDR & GPIO_PIN_15)
+	  ) { asm("nop"); }
 
 	  display_load(display_current_frame);
 
 	  while (1) {
 		  // go to next report
-		  if (UB || SWT1 || SWT5) {
+		  if (
+				  (GPIOA->IDR & GPIO_PIN_0) ||
+				  !(GPIOC->IDR & GPIO_PIN_11) ||
+				  !(GPIOC->IDR & GPIO_PIN_8)
+		  ) {
 			  display_current_frame += 1;
-			  display_current_frame %= LEN(executors)+1;
 			  break;
 		  }
 
 		  // go to previous report
-		  else if (SWT3 || SWT4) {
+		  else if (
+				  !(GPIOC->IDR & GPIO_PIN_9) ||
+		  	  	  !(GPIOC->IDR & GPIO_PIN_6)
+	  	  ) {
 			  display_current_frame -= 1;
-
-			  if ((int) display_current_frame == -1)
-				  display_current_frame = LEN(executors);
-
 			  break;
 		  }
 
-		  // return to summary frame
-		  else if (SWT2) {
-			  display_current_frame = 0;
-			  break;
+		  // execute this test live
+		  else if (
+				  !(GPIOA->IDR & GPIO_PIN_15)
+		  ) {
+			  // not implemented
+			  continue;
 		  }
 	  }
+  }
+
+  /* USER CODE END 2 */
+
+  /* Infinite loop */
+  /* USER CODE BEGIN WHILE */
+
+  /*
+  while (1)
+  {
+	if (delay_between_runs[current_executor_id] == -1 && buttons_interrupt_enabled)
+		buttons_switch_to_input();
+	else if (delay_between_runs[current_executor_id] != -1 && !buttons_interrupt_enabled)
+		buttons_switch_to_interrupt();
+
+	executors[current_executor_id]();
+
+	if (delay_between_runs[current_executor_id] == -1) {
+		WAIT_UNTIL_CB_PRESSED;
+		HAL_Delay(150);
+		GPIOD->BSRR = 0x1000;
+
+		WAIT_UNTIL_CB_RELEASED;
+		HAL_Delay(150);
+		GPIOD->BSRR = 0x1000 << 16;
+
+		if (cleanup_functions[current_executor_id])
+			cleanup_functions[current_executor_id]();
+
+		switch_to_next_test();
+	} else {
+		HAL_Delay(delay_between_runs[current_executor_id]);
+	}
+	*/
     /* USER CODE END WHILE */
 
     /* USER CODE BEGIN 3 */
-  }
+  //}
   /* USER CODE END 3 */
 }
 

Core/Src/stm32f4xx_it.c

@@ -204,7 +204,7 @@ void EXTI0_IRQHandler(void)
 {
 	GPIOD->ODR = 0x1000;
 
-	//switch_to_next_test();
+	switch_to_next_test();
 
 	for (int i = 300000; i > 0; i--) asm("nop");
 
@@ -217,7 +217,7 @@ void EXTI9_5_IRQHandler(void)
 {
 	GPIOD->ODR = 0x1000;
 
-	//switch_to_next_test();
+	switch_to_next_test();
 
 	for (int i = 300000; i > 0; i--) asm("nop");