Difference between revisions of "Minimig Board v1.0 mcu firmware"

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(MCU firmware overview)
 
(fixup)
Line 2: Line 2:
 
:Read single block (with block-size set by CMD16 to 512 by default)
 
:Read single block (with block-size set by CMD16 to 512 by default)
 
::AtaReadSector( lba, ReadData )
 
::AtaReadSector( lba, ReadData )
:Write: 512 Byte-Mode, this will not work (read MMC and SD-card specs) with any  
+
:Write: 512 Byte-Mode, this will not work (read MMC and SD-card specs) with any other sector/block size then 512
other sector/block size then 512
 
 
::AtaWriteSector( lba, WriteData )
 
::AtaWriteSector( lba, WriteData )
  
Line 42: Line 41:
 
:Open a file
 
:Open a file
 
::Open(name)
 
::Open(name)
:Send sector data to FPGA. Translates into Amiga floppy format sector.
+
:Send sector data to FPGA. Translates into Amiga floppy format sector. No insertion of clock bits.
:No insertion of clock bits.
 
 
::SectorToFpga(sector,track)
 
::SectorToFpga(sector,track)
  

Revision as of 06:07, 24 August 2007

ata18.c

Read single block (with block-size set by CMD16 to 512 by default)
AtaReadSector( lba, ReadData )
Write: 512 Byte-Mode, this will not work (read MMC and SD-card specs) with any other sector/block size then 512
AtaWriteSector( lba, WriteData )

fat1618_2.c

Card present check. If present check valid FAT16 primary partition.
FindDrive2()
Scan directory
FileSearch2(file, mode)
Point to next sector in file
FileNextSector2(file)
Read sector into buffer
FileRead2(file)

hardware.c

Disable A/D, Setup ports, Serial 115200 bps
HardwareInit()
Send SPI?
SPI(byte)
Send byte to FPGA configuration
ShiftFpga(data)

main.c

PIC Hardware init.
SD-Card init.
Check for FAT16 card present.
Configure FPGA.
Load kickstart.
Continously check for FPGA commands and run them.
main()
Commands::Get track status, Read track, Write track
HandleFpgaCmd(c1,c2)
Transfer rom image from MMC to FPGA
ReadRom()
Read track to FPGA.
ReadTrack(drive)
Write track from FPGA.
WriteTrack(drive)
Open a file
Open(name)
Send sector data to FPGA. Translates into Amiga floppy format sector. No insertion of clock bits.
SectorToFpga(sector,track)

osd.c

Write string to OSD
OsdWrite(n,s)
Clear buffer
OsdClear()
Enable OSD
OsdEnable()
Disable OSD
OsdDisable()
Get key
OsdGetCtrl()