--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,159 @@
+#include <ctype.h>
+#include <stdio.h>
+#include <stdint.h>
+#include "stm32f10x.h"
+#include "main.h"
+#include "comm.h"
+
+USART_InitTypeDef USART_InitStructure;
+
+void Setup_HW(void);
+void NVIC_Configuration(void);
+
+/* Called every millisecond */
+RAMFUNC void
+SysTick_Handler(void) {
+    static uint32_t	tick;
+   
+    tick++;
+}
+
+RAMFUNC void
+USART1_IRQHandler(void) {
+    
+}
+
+typedef volatile struct {
+    char	buf[40];
+    uint8_t	state;
+    uint8_t	len;
+} consbuf_t;
+
+int
+main(void) {
+    consbuf_t	cmd;
+    char	c;
+    int		idx;
+
+    cmd.state = cmd.len = 0;
+    
+    /* Setup USART etc */
+    Setup_HW();
+
+    /* NVIC configuration */
+    NVIC_Configuration();
+
+    /* Setup SysTick Timer for 1 millisecond interrupts, also enables Systick and Systick-Interrupt */
+    if (SysTick_Config(SystemCoreClock / 1000)) {
+	/* Capture error */
+	comm_puts("Can't setup SysTick\r\n");
+	while (1)
+	    ;
+    }
+
+    /* Say hello */
+    comm_puts("\r\nHello world\r\n");
+    idx = 0;
+    
+    while (1) {
+	comm_puts("> ");
+	while (1) {
+	    c = comm_get();
+	
+	    /* End of line? */
+	    if (c == '\n' || c == '\r') {
+		cmd.buf[cmd.state] = '\0';
+		printf("\r\n");
+		cmd.len = cmd.state;
+		cmd.state = 255;
+		break;
+	    }
+	
+	    /* Backspace/delete */
+	    if (c == 0x08 || c == 0x7f) {
+		if (cmd.state > 0) {
+		    cmd.state--;
+		    printf("\177\040\177");
+		}
+		continue;
+	    }
+	
+	    /* Anything unprintable just ignore it */
+	    if (!isprint(c))
+		continue;
+	    cmd.buf[cmd.state] = tolower(c);
+
+	    /* Echo back to the user */
+	    comm_put(cmd.buf[cmd.state]);
+	
+	    cmd.state++;
+	    /* Over flow? */
+	    if (cmd.state == ((sizeof(cmd.buf) / sizeof(cmd.buf[0])) - 1)) {
+		printf("\r\nLine too long");
+		cmd.state = 0;
+		continue;
+	    }
+	}
+	if (cmd.len > 0)
+	    printf("Got command '%s'\r\n", cmd.buf);
+	cmd.state = 0;
+    }
+}
+
+/* Setup hardware (USART etc) */
+void
+Setup_HW(void) {
+    GPIO_InitTypeDef GPIO_InitStructure;
+
+    /* Enable USART1, GPIOA, GPIOD and AFIO clocks */
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOD
+			   | RCC_APB2Periph_AFIO, ENABLE);
+    /* Enable USART2 clock */
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
+
+    /* DMA1 clock enable */
+    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+
+    /* Configure USART1 TX (PA.09) as alternate function push-pull */
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    /* Configure USART1 RX (PA.10) as input floating */
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    /* Init UART1 - 115200 8n1, no flow control TX & RX enabled */
+    USART_InitStructure.USART_BaudRate = 115200;
+    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+    USART_InitStructure.USART_StopBits = USART_StopBits_1;
+    USART_InitStructure.USART_Parity = USART_Parity_No;
+    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+
+    /* Configure USART1 */
+    USART_Init(USART1, &USART_InitStructure);
+
+    /* Enable the USART1 */
+    USART_Cmd(USART1, ENABLE);
+}
+
+/* Configure interrupt controller */
+#ifdef VECT_TAB_RAM
+/* vector-offset (TBLOFF) from bottom of SRAM. defined in linker script */
+extern uint32_t _isr_vectorsram_offs;
+void
+NVIC_Configuration(void) {
+    /* Set the Vector Table base location at 0x20000000+_isr_vectorsram_offs */
+    NVIC_SetVectorTable(NVIC_VectTab_RAM, (uint32_t)&_isr_vectorsram_offs);
+}
+#else
+extern uint32_t _isr_vectorsflash_offs;
+void
+NVIC_Configuration(void) {
+    /* Set the Vector Table base location at 0x08000000+_isr_vectorsflash_offs */
+    NVIC_SetVectorTable(NVIC_VectTab_FLASH, (uint32_t)&_isr_vectorsflash_offs);
+}
+#endif /* VECT_TAB_RAM */