/* sd2snes - SD card based universal cartridge for the SNES Copyright (C) 2009-2010 Maximilian Rehkopf AVR firmware portion Inspired by and based on code from sd2iec, written by Ingo Korb et al. See sdcard.c|h, config.h. FAT file system access based on code by ChaN, Jim Brain, Ingo Korb, see ff.c|h. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License only. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA fpga.h: FPGA (re)configuration */ #ifndef FPGA_H #define FPGA_H #include #include "bits.h" void fpga_set_prog_b(uint8_t val); void fpga_set_cclk(uint8_t val); int fpga_get_initb(void); void fpga_init(void); void fpga_postinit(void); void fpga_pgm(uint8_t* filename); void fpga_rompgm(void); void set_mcu_ovr(uint8_t val); uint8_t SPI_OFFLOAD; #define CCLKREG LPC_GPIO0 #define PROGBREG LPC_GPIO1 #define INITBREG LPC_GPIO2 #define DINREG LPC_GPIO2 #define DONEREG LPC_GPIO0 #define CCLKBIT (11) #define PROGBBIT (10) #define INITBBIT (9) #define DINBIT (8) #define DONEBIT (22) #define FPGA_TEST_TOKEN (0xa5) // some macros for bulk transfers (faster) #define FPGA_SEND_BYTE_SERIAL(data) do {SET_FPGA_DIN(data>>7); CCLK();\ SET_FPGA_DIN(data>>6); CCLK(); SET_FPGA_DIN(data>>5); CCLK();\ SET_FPGA_DIN(data>>4); CCLK(); SET_FPGA_DIN(data>>3); CCLK();\ SET_FPGA_DIN(data>>2); CCLK(); SET_FPGA_DIN(data>>1); CCLK();\ SET_FPGA_DIN(data); CCLK();} while (0) #define SET_CCLK() do {BITBAND(LPC_GPIO0->FIOSET, 11) = 1;} while (0) #define CLR_CCLK() do {BITBAND(LPC_GPIO0->FIOCLR, 11) = 1;} while (0) #define CCLK() do {SET_CCLK(); CLR_CCLK();} while (0) #define SET_MCU_OVR() do {BITBAND(LPC_GPIO2->FIOSET, 8) = 1;} while (0) #define CLR_MCU_OVR() do {BITBAND(LPC_GPIO2->FIOCLR, 8) = 1;} while (0) #define SET_FPGA_DIN(data) do {LPC_GPIO2->FIOPIN1 = data;} while (0) #endif