OpenCores
URL https://opencores.org/ocsvn/plasma/plasma/trunk

Subversion Repositories plasma

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  • This comparison shows the changes necessary to convert path 
    /
    from Rev 290 to Rev 291
    ↔ Reverse comparison
  •

Rev 290 → Rev 291

/trunk/tools/bootldr.c
1,4 → 1,14
/* bootldr.c */
/*--------------------------------------------------------------------
* TITLE: Plasma Bootloader
* AUTHOR: Steve Rhoads (rhoadss@yahoo.com)
* DATE CREATED: 12/17/05
* FILENAME: bootldr.c
* PROJECT: Plasma CPU core
* COPYRIGHT: Software placed into the public domain by the author.
* Software 'as is' without warranty. Author liable for nothing.
* DESCRIPTION:
* Plasma bootloader.
*--------------------------------------------------------------------*/
#include "plasma.h"
 
#define MemoryRead(A) (*(volatile unsigned long*)(A))
11,7 → 21,46
extern int DdrInit(void);
 
typedef void (*FuncPtr)(void);
typedef unsigned long uint32;
typedef unsigned short uint16;
 
 
void FlashRead(uint16 *dst, uint32 byteOffset, int bytes)
{
volatile uint32 *ptr=(uint32*)(FLASH_BASE + (byteOffset << 1));
*ptr = 0xff; //read mode
while(bytes > 0)
{
*dst++ = (uint16)*ptr++;
bytes -= 2;
}
}
 
 
void FlashWrite(uint16 *src, uint32 byteOffset, int bytes)
{
volatile uint32 *ptr=(uint32*)(FLASH_BASE + (byteOffset << 1));
while(bytes > 0)
{
*ptr = 0x40; //write mode
*ptr++ = *src++; //write data
while((*ptr & 0x80) == 0) //check status
;
bytes -= 2;
}
}
 
 
void FlashErase(uint32 byteOffset)
{
volatile uint32 *ptr=(uint32*)(FLASH_BASE + (byteOffset << 1));
*ptr = 0x20; //erase block
*ptr = 0xd0; //confirm
while((*ptr & 0x80) == 0) //check status
;
}
 
 
char *xtoa(unsigned long num)
{
static char buf[12];
26,6 → 75,7
return buf;
}
 
 
unsigned long getnum(void)
{
int i;
62,6 → 112,7
return value;
}
 
 
int main(void)
{
int i, j, ch;
76,6 → 127,14
puts(" ");
puts(__TIME__);
puts(":\n");
MemoryWrite(FLASH_BASE, 0xff); //read mode
if((MemoryRead(GPIOA_IN) & 1) && (MemoryRead(FLASH_BASE) & 0xffff) == 0x3c1c)
{
puts("Boot from flash\n");
FlashRead((uint16*)RAM_EXTERNAL_BASE, 0, 1024*128);
funcPtr = (FuncPtr)RAM_EXTERNAL_BASE;
funcPtr();
}
for(;;)
{
puts("\nWaiting for binary image linked at 0x10000000\n");
89,6 → 148,7
puts("7. Raw memory write\n");
puts("8. Checksum\n");
puts("9. Dump\n");
puts("F. Copy 128KB from DDR to flash\n");
puts("> ");
ch = getch();
address = 0;
132,8 → 192,6
case '6':
puts("\nCount in hex> ");
count = getnum();
//puts(xtoa(count));
//puts("\n");
for(i = 0; i < count; ++i)
{
ch = *(unsigned char*)(address + i);
143,8 → 201,6
case '7':
puts("\nCount in hex> ");
count = getnum();
//puts(xtoa(count));
//putchar('\n');
for(i = 0; i < count; ++i)
{
ch = getch();
176,6 → 232,10
}
puts("\r\n");
break;
case 'F':
FlashErase(0);
FlashWrite((uint16*)RAM_EXTERNAL_BASE, 0, 1024*128);
break;
case 0x3c: //raw test.bin file
ptr1 = (unsigned char*)0x10000000;
for(i = 0; i < 1024*1024; ++i)

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