X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=pkernel%2Fmain.c;h=3676387a43694582dcf5e33e73b4d59a5a15f63e;hb=53f7a41d712ea632f433699ad64900fd23d42a89;hp=89fc2c85f0a415eb04839d99c4a7a0b86e154905;hpb=ccf858667cbb6492aeb2f8ec5d6c05492e926ec3;p=pyfrprog.git

diff --git a/pkernel/main.c b/pkernel/main.c
index 89fc2c8..3676387 100644
--- a/pkernel/main.c
+++ b/pkernel/main.c
@@ -3,89 +3,136 @@
 
 #pragma section CODE=IRAM,attr=CODE
 
-void increaseled(void)
+#define BUFSIZE 0x20
+#define cleardata() memset(data,0,BUFSIZE)
+
+static void increaseled(void)
 {
-	PDR14 = (PDR14+1)%256;
+	PDR14 = ~(((~PDR14)+1)%256);
 	HWWD_CL = 0;
 }
 
+static unsigned char recvbyte(void)
+{
+	return Getch4();
+}
+
+static unsigned short recvword(void)
+{
+	static unsigned char b1, b2;
+	static unsigned int ret;
+	b1 = recvbyte();
+	b2 = recvbyte();
+	ret = (b2 << 8) | b1;
+	return ret;
+}
+
+static unsigned int recvdword(void)
+{
+	static unsigned char b1, b2, b3, b4;
+	static unsigned int ret;
+	b1 = recvbyte();
+	b2 = recvbyte();
+	b3 = recvbyte();
+	b4 = recvbyte();
+	ret = (b4 << 24) | (b3 << 16) | (b2 << 8) | b1;
+	return ret;
+}
+
+static void halt(void)
+{
+	while(1) {
+		HWWD_CL = 0;
+	}
+}
+
+static void panic(void)
+{
+	PDR14 = 0xff;
+	PDR14 = 0x22;
+	halt();
+}
+
 void main(void)
 {
-	unsigned char error = 0;
-	unsigned char global_error = 0;	
-	unsigned int i, baseaddr;
-	unsigned int toflash[] = {0x9b00,
-								0x0d4e,
-								0xcff1,
-								0x1601,
-								0x9b05,
-								0x04c7,
-								0xc106,
-								0x1656,
-								0xe0fb}; //len = 9
+	unsigned int address;
+	unsigned short i, size;
+	unsigned char running = 1, data[BUFSIZE] = {0};
 	
-	PORTEN = 0x3;		/* enable I/O Ports */
-				/* This feature is not supported by MB91V460A */
-                               /* For all other devices the I/O Ports must be enabled*/
+	PORTEN = 0x3; /* enable I/O Ports */
 
-	/*	Enable LEDs	*/
+	/*Enable LEDs*/
 	DDR14 = 0xFF;
 	PDR14 = 0xff;
 
-	/*	Initialize UART4	*/
+	/*Initialize UART4*/
 	InitUart4();
 
-	/*	Output Welcome Message	*/
-	Puts4(" \n\n");
- 	Puts4("\n\n********** Welcome to FUJITSU FLASH Programming Demo **********\n");
+	while(running) {
+		cleardata();
+		increaseled();
+		switch(recvbyte()) {
+			case 0x13: //receive
+				Putch4(0x37);
+				increaseled();
 
-#if 1
-	i = 0;
-	baseaddr = 0xf4000;
-	for (; i <0x30; i+=4) {
-		error = FLASH_SectorErase(baseaddr + i);
-		Puts4("\nerased: ");
-		Puts4(error == 1 ? "[success] " : "[failed] ");
-		Puthex4(baseaddr + i, 6);
-	}
-#endif
-	i=0;
-	Puts4("\nCurrent Content of FLASH at 0xf4000 ... 0xf401F:\n");
-	while(i < 0x20)
-	{
-		Puts4("0x"); Puthex4( *(unsigned char *)(0xf4000 + i), 2); Puts4(" ");
-		i++;
-		if( (i % 0x10) == 0 ) Puts4("\n");
+				address = recvdword();
+				increaseled();
+
+				size = recvword();
+				increaseled();
+
+				Putch4(0x04); //Received Metadata.
+				PDR14 = 0xff;
+				for(i=0; i<size; i++) { /* get data */
+					increaseled();
+					data[i] = recvbyte();
+				}
+				Putch4(0x08); //Received Data.
+
+				PDR14 = 0xff;
+				for(i=0; i<size; i+=4) { /* erase */
+					if(FLASH_SectorErase(address + i) != 1) {
+						panic();
+					}
+					increaseled();
+				}
+
+				Putch4(0x18); //Erasing done.
+				for(i=0; i<size; i++) { /* flash the data */
+					increaseled();
+					if(FLASH_WriteHalfWord(address + (2*i), data[i]) != 1) {
+						panic();
+					}
+				}
+				Putch4(0x28); //Flashing done.
+				break;
+
+			case 0x99: /* exit */
+				running = 0;
+				break;
+			default: break;
+		}
 	}
-	Puts4("\n");
 
+	PDR14 = 0x55; //signal that we finished now!
+	halt();
 
+#if 0
 	i = 0;
 	baseaddr = 0xf4000;
-	for(; i<9; i++) {
-		Puts4("\nwrite: ");
-		error = FLASH_WriteHalfWord(baseaddr + (2*i), toflash[i]);
-		Puts4(error == 1 ? "[sucess] " : "[failed] ");
-		Puts4("0x");
-		Puthex4(toflash[i], 4);
-		Puts4(" @0x");
-		Puthex4(baseaddr + (2*i), 6);
+	for (; i <0x10; i+=4) {
+		(void) FLASH_SectorErase(baseaddr + i);
+		increaseled();
 	}
 
-	/*	Output Ready Meassage	*/
-	if( global_error != 0 )
- 	{
-	 	Puts4("\n********* FLASH Programming Demo failed **********\n");
-	}
-	else
-	{
-		Puts4("\n********* FLASH Programming Demo done **********\n");
+	i = 0;
+	baseaddr = 0xf4000;
+	for(; i<9; i++) {
+		increaseled();
+		(void) FLASH_WriteHalfWord(baseaddr + (2*i), toflash[i]);
 	}
 
-    while(1)
-    {    
-         
-       HWWD_CL = 0;   
-    }   
+#endif
 }