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enable AVR write in shared mode; disable smc_id in db creation (speedup)

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This commit is contained in:
ikari 2009-12-25 05:19:03 +01:00
parent 1b65c4fd88
commit a312640506
4 changed files with 37 additions and 27 deletions
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14
src/filetypes.c
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@ -163,13 +163,13 @@ uint16_t scan_dir(char* path, char mkdb, uint32_t this_dir_tgt) {
uint16_t pathlen = strlen(path);
switch(type) {
case TYPE_SMC:
file_open_by_filinfo(&fno);
if(file_res){
dprintf("ZOMG NOOOO %d\n", file_res);
_delay_ms(30);
}
smc_id(&romprops);
file_close();
// XXX file_open_by_filinfo(&fno);
// XXX if(file_res){
// XXX dprintf("ZOMG NOOOO %d\n", file_res);
// XXX _delay_ms(30);
// XXX }
// XXX smc_id(&romprops);
// XXX file_close();
// _delay_ms(30);
// write element pointer to current dir structure
// dprintf("d=%d Saving %lX to Address %lX [file]\n", depth, db_tgt, dir_tgt);

3
src/main.c
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@ -278,6 +278,8 @@ restart:
uart_puts_P(PSTR("SNES GO!\r\n"));
snes_reset(0);
uint8_t cmd = 0;
while(!sram_reliable());
@ -316,6 +318,7 @@ restart:
cmd=0;
uint8_t snes_reset_prev=0, snes_reset_now=0, snes_reset_state=0;
uint16_t reset_count=0;
// /* XXX */ writetest();
while(fpga_test() == FPGA_TEST_TOKEN) {
snes_reset_now=get_snes_reset();
if(snes_reset_now) {

2
verilog/sd2snes/avr_cmd.v
View File

@ -140,7 +140,7 @@ end
// r/w pulse
always @(posedge clk) begin
if ((spi_bit_cnt == 3'h1) & (cmd_data[7:4] == 4'h9) & (spi_byte_cnt > 32'h1))
if ((spi_bit_cnt == 3'h1 || spi_bit_cnt == 3'h2 || spi_bit_cnt == 3'h3) & (cmd_data[7:4] == 4'h9) & (spi_byte_cnt > 32'h1))
AVR_WRITE_BUF <= 1'b0;
else
AVR_WRITE_BUF <= 1'b1;

45
verilog/sd2snes/main.v
View File

@ -319,31 +319,35 @@ initial begin
SNES_WRITE_CYCLE = 1'b1;
AVR_READ_CYCLE = 1'b1;
AVR_WRITE_CYCLE = 1'b1;
MODE_ARRAY = 13'b0000000111111;
MODE_ARRAY = 13'b0_000000_111111;
SRAM_WE_ARRAY[2'b00] = 13'b1000000000000;
SRAM_WE_ARRAY[2'b01] = 13'b1000000111111;
SRAM_WE_ARRAY[2'b10] = 13'b1111111000000;
SRAM_WE_ARRAY[2'b11] = 13'b1111111111111;
SRAM_WE_ARRAY[2'b00] = 13'b1_000000_000000;
SRAM_WE_ARRAY[2'b01] = 13'b1_000000_111111;
SRAM_WE_ARRAY[2'b10] = 13'b1_111111_000000;
SRAM_WE_ARRAY[2'b11] = 13'b1_111111_111111;
SRAM_OE_ARRAY[2'b00] = 13'b1111111111111;
SRAM_OE_ARRAY[2'b01] = 13'b1111111000000;
SRAM_OE_ARRAY[2'b10] = 13'b0000000111111;
SRAM_OE_ARRAY[2'b11] = 13'b0000000000000;
SRAM_OE_ARRAY[2'b00] = 13'b1_111111_111111;
SRAM_OE_ARRAY[2'b01] = 13'b1_111111_000000;
SRAM_OE_ARRAY[2'b10] = 13'b0_000000_111111;
SRAM_OE_ARRAY[2'b11] = 13'b0_000000_000000;
SNES_DATA_TO_MEM_ARRAY[1'b0] = 13'b0001000000000; // SNES write
SNES_DATA_TO_MEM_ARRAY[1'b0] = 13'b0_001000_000000; // SNES write
/* 13'b0001000000000 */
SNES_DATA_TO_MEM_ARRAY[1'b1] = 13'b0000000000000; // SNES read
SNES_DATA_TO_MEM_ARRAY[1'b1] = 13'b0_000000_000000; // SNES read
AVR_DATA_TO_MEM_ARRAY[1'b0] = 13'b0000000001000; // AVR write
AVR_DATA_TO_MEM_ARRAY[1'b1] = 13'b0000000000000; // AVR read
AVR_DATA_TO_MEM_ARRAY[1'b0] = 13'b1_111111_111111; // AVR write
// AVR_DATA_TO_MEM_ARRAY[1'b0] = 13'b0000000001000; // AVR write
AVR_DATA_TO_MEM_ARRAY[1'b1] = 13'b0_000000_000000; // AVR read
SRAM_DATA_TO_SNES_MEM_ARRAY[1'b0] = 13'b0000000000000; // SNES write
SRAM_DATA_TO_SNES_MEM_ARRAY[1'b1] = 13'b0000100000000; // SNES read
SRAM_DATA_TO_SNES_MEM_ARRAY[1'b0] = 13'b0_000000_000000; // SNES write
SRAM_DATA_TO_SNES_MEM_ARRAY[1'b1] = 13'b0_000010_000000; // SNES read
/* 13'b0000100000000; */
SRAM_DATA_TO_AVR_MEM_ARRAY[1'b0] = 13'b0000000000000; // AVR write
SRAM_DATA_TO_AVR_MEM_ARRAY[1'b1] = 13'b0000000000001; // AVR read
SRAM_DATA_TO_AVR_MEM_ARRAY[1'b0] = 13'b0_000000_000000; // AVR write
SRAM_DATA_TO_AVR_MEM_ARRAY[1'b1] = 13'b0_000000_000001; // AVR read
// SRAM_DATA_TO_AVR_MEM_ARRAY[1'b1] = 13'b0000000000001; // AVR read
end
// falling edge of SNES /RD or /WR marks the beginning of a new cycle
@ -357,11 +361,11 @@ always @(posedge CLK2) begin
end
always @(posedge CLK2) begin
AVR_READ_CYCLE <= AVR_READ;
AVR_WRITE_CYCLE <= AVR_WRITE;
if (SNES_RW_start) begin
SNES_READ_CYCLE <= SNES_READ;
SNES_WRITE_CYCLE <= SNES_WRITE;
AVR_READ_CYCLE <= AVR_READ;
AVR_WRITE_CYCLE <= AVR_WRITE;
STATE <= STATE_0;
STATEIDX <= 11;
end else begin
@ -472,6 +476,9 @@ assign SRAM_OE = !AVR_ENA ? AVR_READ
assign SRAM_BHE = !SRAM_WE ? SRAM_ADDR0 : 1'b0;
assign SRAM_BLE = !SRAM_WE ? !SRAM_ADDR0 : 1'b0;
//assign SRAM_BHE = SRAM_ADDR0;
//assign SRAM_BLE = ~SRAM_ADDR0;
// dumb version
//assign SRAM_OE = !AVR_ENA ? AVR_READ : SNES_READs;
//assign SRAM_WE = !AVR_ENA ? AVR_WRITE : 1'b1;