Initial Commit

1 files changed, 54 insertions, 0 deletions

diff --git a/VexRiscvSocSoftware/projects/murax/demo/src/main.c b/VexRiscvSocSoftware/projects/murax/demo/src/main.c
new file mode 100755
index 0000000..9f62ab3
--- /dev/null
+++ b/VexRiscvSocSoftware/projects/murax/demo/src/main.c
@@ -0,0 +1,54 @@
+#include <stdint.h>
+
+#include <murax.h>
+
+
+void main() {
+	volatile uint32_t a = 1, b = 2, c = 3;
+	uint32_t result = 0;
+	char msg[] = "Lieber Franz! Wir wünschen Dir eine gute Zeit!";
+	uint32_t msgidx = 0;
+
+	interruptCtrl_init(TIMER_INTERRUPT);
+	prescaler_init(TIMER_PRESCALER);
+	timer_init(TIMER_A);
+
+	TIMER_PRESCALER->LIMIT = 50000-1; //1 ms rate
+
+	TIMER_A->LIMIT = 1000-1;  //1 second rate
+	TIMER_A->CLEARS_TICKS = 0x00010002;
+
+	TIMER_INTERRUPT->PENDINGS = 0xF;
+	TIMER_INTERRUPT->MASKS = 0x1;
+
+	GPIO_A->OUTPUT_ENABLE = 0x000000FF;
+	GPIO_A->OUTPUT = 0x00000000;
+
+	UART->STATUS = 2; //Enable RX interrupts
+	UART->DATA = 'A';
+
+	while(1){
+		result += a;
+		result += b + c;
+		for(uint32_t idx = 0;idx < 200000;idx++) asm volatile("");
+		if (msgidx == sizeof(msg)-1)
+		  msgidx = 0;
+		else
+		  msgidx++;
+		UART->DATA = msg[msgidx];
+		GPIO_A->OUTPUT = (GPIO_A->OUTPUT & ~0x3F) | ((GPIO_A->OUTPUT + 1) & 0x3F);  //Counter on LED[5:0]
+	}
+}
+
+void irqCallback(){
+	if(TIMER_INTERRUPT->PENDINGS & 1){  //Timer A interrupt
+		GPIO_A->OUTPUT ^= 0x80; //Toogle led 7
+		TIMER_INTERRUPT->PENDINGS = 1;
+	}
+	while(UART->STATUS & (1 << 9)){ //UART RX interrupt
+		UART->DATA = (UART->DATA) & 0xFF;
+	}
+}
+
+
+