Minimig Board v1.0 mcu firmware

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
directory[] filled with filenames from the SD/MMC flashcard.

PIC Hardware init. SD-Card init. Check for FAT16 card present. Configure FPGA. Load kickstart. Continously check for FPGA commands and run them.
 * main

User interface. Controlled via up, down, select, menu commands received from OsdGetCtrl
 * User

Insert floppy image pointed to to by global into
 * InsertFloppy( drive )

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