akkera 102
GameBoy Advance Multiboot & Dumper
Dependencies: SDFileSystem mbed
Revision 0:66a93ef88e4e, committed 2014-11-24
- Comitter:
- akkera102
- Date:
- Mon Nov 24 13:28:15 2014 +0000
- Commit message:
- 1st;
Changed in this revision
diff -r 000000000000 -r 66a93ef88e4e SDFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Mon Nov 24 13:28:15 2014 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/mbed_official/code/SDFileSystem/#7b35d1709458
diff -r 000000000000 -r 66a93ef88e4e crc.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/crc.cpp Mon Nov 24 13:28:15 2014 +0000
@@ -0,0 +1,35 @@
+#include "crc.h"
+
+static uint32_t r;
+
+uint32_t crcU32n(uint32_t d)
+{
+ uint32_t bit;
+
+ for(bit=0; bit<32; bit++)
+ {
+ if((r ^ d) & 0x01)
+ {
+ r = (r >> 1) ^ 0x0000c37b;
+ }
+ else
+ {
+ r = (r >> 1);
+ }
+
+ d = d >> 1;
+ }
+
+ return r;
+}
+
+uint32_t crcU32(uint32_t d)
+{
+ crcReset();
+ return crcU32n(d);
+}
+
+void crcReset(void)
+{
+ r = 0x0000c387;
+}
diff -r 000000000000 -r 66a93ef88e4e crc.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/crc.h Mon Nov 24 13:28:15 2014 +0000 @@ -0,0 +1,11 @@ +#ifndef CRC_H +#define CRC_H + +#include "mbed.h" + +uint32_t crcU32n(uint32_t d); +uint32_t crcU32(uint32_t d); +void crcReset(void); + + +#endif
diff -r 000000000000 -r 66a93ef88e4e main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Nov 24 13:28:15 2014 +0000
@@ -0,0 +1,82 @@
+#include "main.h"
+#include "crc.h"
+#include "multiboot.h"
+#include "SDFileSystem.h"
+
+static SDFileSystem sd(p11, p12, p13, p8, "sd");
+static Serial pc(USBTX, USBRX);
+
+int main(void)
+{
+ int ret = MultiBoot("/local/test.gba");
+ if(ret == EXIT_FAILURE)
+ {
+ SystemError("MultiBoot", ret);
+ }
+
+ WaitSPI32(0x0, 0x1234abcd, "Wait for GBA(Calculate dump size)");
+
+ uint32_t size = WriteSPI32(0x0, "size");
+ uint32_t sizeCRC = WriteSPI32(0x0, "sizeCRC");
+ uint32_t crc = crcU32(size);
+
+ if(crc != sizeCRC)
+ {
+ SystemError("sizeCRC", crc);
+ }
+ pc.printf("sizeCRC OK!\n");
+
+ FILE *fp = fopen("/sd/data.bin", "w");
+ if(fp == NULL)
+ {
+ SystemError("Could not open file for write", 0);
+ }
+
+ uint32_t table[256/4];
+ uint32_t cnt = 0;
+ int i;
+
+ pc.printf("data sending...(NoDebug)\n");
+ crcReset();
+
+ for(i=0; i<size/4; i++)
+ {
+ table[cnt] = WriteSPI32NoDebug(0x0);
+ crc = crcU32n(table[cnt]);
+ cnt++;
+
+ if(cnt >= 256/4)
+ {
+ fwrite(&table, sizeof(uint32_t), 256/4, fp);
+ cnt = 0;
+ }
+
+ wait_us(100); // GBA too slow...
+ }
+ fclose(fp);
+
+ uint32_t dataCRC = WriteSPI32(0x0, "dataCRC");
+ if(crc != dataCRC)
+ {
+ SystemError("dataCRC", crc);
+ }
+ pc.printf("dataCRC OK!\n");
+
+
+ pc.printf("All done\n");
+ for(;;)
+ {
+ wait(1);
+ }
+}
+
+void SystemError(char* str, uint32_t hex)
+{
+ pc.printf("[Err][0x%x] %s\n", hex, str);
+
+ for(;;)
+ {
+ wait(1);
+ }
+}
+
diff -r 000000000000 -r 66a93ef88e4e main.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.h Mon Nov 24 13:28:15 2014 +0000 @@ -0,0 +1,8 @@ +#ifndef MAIN_H +#define MAIN_H + +#include "mbed.h" + +void SystemError(char* str, uint32_t hex); + +#endif \ No newline at end of file
diff -r 000000000000 -r 66a93ef88e4e mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Nov 24 13:28:15 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/031413cf7a89 \ No newline at end of file
diff -r 000000000000 -r 66a93ef88e4e multiboot.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/multiboot.cpp Mon Nov 24 13:28:15 2014 +0000
@@ -0,0 +1,171 @@
+// mbed GBA Loader - Boot up a GameBoy Advance using Multiboot (no cart req.)
+//
+// Ken Kaarvik kkaarvik@yahoo.com Nov 13, 2010
+// akkera102 Nov 08, 2014(modified)
+//
+// mbed(LPC1768) gba serial port(color)
+// p1-0V 6-GND (blue)
+// p5-mosi 3-SI (orange)
+// p6-miso 2-SO (red)
+// p7-sck 5-SC (green)
+//
+// The GBA file that you wish to load into the GBA is stored on the mbed's local file system.
+// Apply power to the mbed (or reset) before turning on the GBA.
+
+#include "multiboot.h"
+
+static LocalFileSystem local("local");
+static Serial pc(USBTX, USBRX);
+static SPI spi(p5, p6, p7);
+
+
+uint32_t WriteSPI32(uint32_t w, char* msg)
+{
+ uint32_t r = WriteSPI32NoDebug(w);
+
+ pc.printf("0x%08x 0x%08x ; %s\n",r , w, msg);
+ return r;
+}
+
+uint32_t WriteSPI32NoDebug(uint32_t w)
+{
+ uint16_t w1 = w >> 16;
+ uint16_t w2 = w & 0xffff;
+
+ uint32_t r;
+ r = spi.write(w1) << 16;
+ r = spi.write(w2) | r;
+
+ return r;
+}
+
+void WaitSPI32(uint32_t w, uint32_t comp, char* msg)
+{
+ pc.printf("%s 0x%08x\n", msg, comp);
+ uint32_t r;
+
+ do
+ {
+ r = WriteSPI32NoDebug(w);
+ wait(0.1);
+
+ } while(r != comp);
+}
+
+int MultiBoot(char* filename)
+{
+ spi.format(16, 3);
+ spi.frequency(100000);
+
+
+ FILE *fp = fopen(filename, "rb");
+ if(fp == NULL)
+ {
+ pc.printf("Err: Can't open file\n");
+ return EXIT_FAILURE;
+ }
+
+ fseek(fp, 0L, SEEK_END);
+ long fsize = (ftell(fp) + 0x0f) & 0xfffffff0;
+
+ if(fsize > 0x40000)
+ {
+ pc.printf("Err: Max file size 256kB\n");
+ return EXIT_FAILURE;
+ }
+
+ fseek(fp, 0L, SEEK_SET);
+ long fcnt = 0;
+
+
+ uint32_t r, w, w2;
+ int i, bit;
+
+ WaitSPI32(0x00006202, 0x72026202, "Looking for GBA");
+
+ r = WriteSPI32(0x00006202, "Found GBA");
+ r = WriteSPI32(0x00006102, "Recognition OK");
+
+ pc.printf("Send Header(NoDebug)\n");
+ for(i=0; i<=0x5f; i++)
+ {
+ w = getc(fp);
+ w = getc(fp) << 8 | w;
+ fcnt += 2;
+
+ r = WriteSPI32NoDebug(w);
+ }
+
+ r = WriteSPI32(0x00006200, "Transfer of header data complete");
+ r = WriteSPI32(0x00006202, "Exchange master/slave info again");
+
+ r = WriteSPI32(0x000063d1, "Send palette data");
+ r = WriteSPI32(0x000063d1, "Send palette data, receive 0x73hh****");
+
+ uint32_t m = ((r & 0x00ff0000) >> 8) + 0xffff00d1;
+ uint32_t h = ((r & 0x00ff0000) >> 16) + 0xf;
+
+ r = WriteSPI32((((r >> 16) + 0xf) & 0xff) | 0x00006400, "Send handshake data");
+ r = WriteSPI32((fsize - 0x190) / 4, "Send length info, receive seed 0x**cc****");
+
+ uint32_t f = (((r & 0x00ff0000) >> 8) + h) | 0xffff0000;
+ uint32_t c = 0x0000c387;
+
+
+ pc.printf("Send encrypted data(NoDebug)\n");
+
+ while(fcnt < fsize)
+ {
+ w = getc(fp);
+ w = getc(fp) << 8 | w;
+ w = getc(fp) << 16 | w;
+ w = getc(fp) << 24 | w;
+
+ w2 = w;
+
+ for(bit=0; bit<32; bit++)
+ {
+ if((c ^ w) & 0x01)
+ {
+ c = (c >> 1) ^ 0x0000c37b;
+ }
+ else
+ {
+ c = c >> 1;
+ }
+
+ w = w >> 1;
+ }
+
+ m = (0x6f646573 * m) + 1;
+ WriteSPI32NoDebug(w2 ^ ((~(0x02000000 + fcnt)) + 1) ^m ^0x43202f2f);
+
+ fcnt = fcnt + 4;
+ }
+ fclose(fp);
+
+
+ for(bit=0; bit<32; bit++)
+ {
+ if((c ^ f) & 0x01)
+ {
+ c =( c >> 1) ^ 0x0000c37b;
+ }
+ else
+ {
+ c = c >> 1;
+ }
+
+ f = f >> 1;
+ }
+
+ WaitSPI32(0x00000065, 0x00750065, "Wait for GBA to respond with CRC");
+
+ r = WriteSPI32(0x00000066, "GBA ready with CRC");
+ r = WriteSPI32(c, "Let's exchange CRC!");
+
+ pc.printf("CRC ...hope they match!\n");
+ pc.printf("MulitBoot done\n");
+
+ return EXIT_SUCCESS;
+}
diff -r 000000000000 -r 66a93ef88e4e multiboot.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/multiboot.h Mon Nov 24 13:28:15 2014 +0000 @@ -0,0 +1,13 @@ +#ifndef MULTIBOOT_H +#define MULTIBOOT_H + +#include "mbed.h" + +uint32_t WriteSPI32(uint32_t w, char* msg); +uint32_t WriteSPI32NoDebug(uint32_t w); +void WaitSPI32(uint32_t w, uint32_t comp, char* msg); + +int MultiBoot(char* filename); + + +#endif
diff -r 000000000000 -r 66a93ef88e4e readme.txt --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readme.txt Mon Nov 24 13:28:15 2014 +0000 @@ -0,0 +1,30 @@ +# MBED --- MicroSD slot + +AE-MICRO-SD-DIP K-05488 +http://akizukidenshi.com/catalog/g/gK-05488/ + +PIN MBED + +1 DAT2 NoUse +2 CD/DAT3 P8 (DigitalOut cs) +3 CMD P11 (SPI mosi) +4 VDD 3.3V +5 CLK P13 (SPI sclk) +6 VSS GND +7 DAT0 P12 (SPI miso) +8 DAT1 NoUse +9 NoUse +10 NoUse + + +# MBED --- MulitBoot Cable + +AGB-005 +http://www.nintendo.co.jp/n08/hardware/syuhen/ + +mbed(LPC1768) gba serial port(color) +p1-0V 6-GND (blue) +p5-mosi 3-SI (orange) +p6-miso 2-SO (red) +p7-sck 5-SC (green) +