[incomplete] work on part 2 architecture

3 files changed, 114 insertions, 43 deletions

diff --git a/project/Core/Src/Project/local_control.c b/project/Core/Src/Project/local_control.c
new file mode 100644
index 0000000..236e555
--- /dev/null
+++ b/project/Core/Src/Project/local_control.c
@@ -0,0 +1,23 @@
+/*
+ * local_control.c
+ *
+ *  Created on: Nov 4, 2025
+ *      Author: sowgro
+ */
+
+void local_control_start() {
+	GPIO_Init();
+	NVIC_Enable_IRQ(XTI15_10_IRQn);
+}
+
+void local_control_loop() {
+
+}
+
+void local_control_stop() {
+
+}
+
+void XTI15_10_IRQHandler() {
+
+}
diff --git a/project/Core/Src/Project/project.c b/project/Core/Src/Project/project.c
index 428dc54..a939879 100644
--- a/project/Core/Src/Project/project.c
+++ b/project/Core/Src/Project/project.c
@@ -13,55 +13,31 @@
 #include "hw4.h"
 #include "player_actions.h"
 
+#define LOCAL_MODE (1)
+#define REMOTE_MODE (2)
+
 void project_run() {
-	char buffer[80];
-	char* cur = buffer;
-	uint8_t state = STOPPED_STATE;
+	int mode = LOCAL_MODE;
+
+	GPIO_Init();
+	NVIC_EnableIRQ(EXTI9_5_IRQn);
 
-	help();
 	for (;;) {
+		switch (mode) {
+		case REMOTE_MODE:
+			remote_control_loop(); break;
+		case LOCAL_MODE:
+			local_control_loop(); break;
+		}
+
 		if (state == PAUSED_STATE)
 			pause_loop();
-		char ch = read_and_print_char_nonblocking();
-		if (!ch)
-			continue;
-		if (ch == '\r') {
-			*cur = 0;
-			handle_input(buffer, &state);
-			cur = buffer;
-			continue;
-		}
-		if (ch == 0x08 || ch == 0x7F) {
-			if (cur <= buffer)
-				continue;
-			cur--;
-			printf("\b \b");
-			continue;
-		}
-		*cur++ = ch;
 	}
 }
 
-void handle_input(char buffer[], uint8_t *state) {
-	if (!strcmp(buffer, "HELP")) {
-		help();
-	}
-	else if (!strcmp(buffer, "NEXT")) {
-		next();
-	}
-	else if (!strcmp(buffer, "PLAY")) {
-		play();
-		*state = PLAYING_STATE;
-	}
-	else if (!strcmp(buffer, "PAUSE")) {
-		pause();
-		*state = PAUSED_STATE;
-	}
-	else if (!strcmp(buffer, "STOP")) {
-		stop();
-		*state = STOPPED_STATE;
-	}
-	else {
-		printf("Unknown command \"%s\"\n\r", buffer);
-	}
+void EXTI9_5_IRQHandler() {
+
 }
+
+
+
diff --git a/project/Core/Src/Project/remote_control.c b/project/Core/Src/Project/remote_control.c
new file mode 100644
index 0000000..905f966
--- /dev/null
+++ b/project/Core/Src/Project/remote_control.c
@@ -0,0 +1,72 @@
+/*
+ * remote_control.c
+ *
+ *  Created on: Nov 4, 2025
+ *      Author: sowgro
+ */
+
+static char buffer[80];
+static char* cur = buffer;
+static uint8_t state = STOPPED_STATE;
+
+void remote_control_start() {
+    NVIC_EnableIRQ (USART2_IRQn);
+    USART2->CR1 |= USART_CR1_RXNEIE; // 1 << 5
+
+	help();
+}
+
+void remote_control_loop() {
+
+}
+
+void remote_control_stop() {
+
+}
+
+static void parse_input(char buffer[], uint8_t *state) {
+	if (!strcmp(buffer, "HELP")) {
+		help();
+	}
+	else if (!strcmp(buffer, "NEXT")) {
+		next();
+	}
+	else if (!strcmp(buffer, "PLAY")) {
+		play();
+		*state = PLAYING_STATE;
+	}
+	else if (!strcmp(buffer, "PAUSE")) {
+		pause();
+		*state = PAUSED_STATE;
+	}
+	else if (!strcmp(buffer, "STOP")) {
+		stop();
+		*state = STOPPED_STATE;
+	}
+	else {
+		printf("Unknown command \"%s\"\n\r", buffer);
+	}
+}
+
+void USART2_IRQHandler() {
+	int ch = USART_Read(USART2);
+	remote_control_parse_input(ch);
+	if (!ch)
+		continue;
+	if (ch == '\r') {
+		*cur = 0;
+		handle_input(buffer, &state);
+		cur = buffer;
+		continue;
+	}
+	if (ch == 0x08 || ch == 0x7F) {
+		if (cur <= buffer)
+			continue;
+		cur--;
+		printf("\b \b");
+		continue;
+	}
+	*cur++ = ch;
+}
+
+