URL https://opencores.org/ocsvn/spacewiresystemc/spacewiresystemc/trunk

Subversion Repositories spacewiresystemc

[/] [spacewiresystemc/] [trunk/] [rtl/] [RTL_VB/] [fifo_rx.v] - Diff between revs 37 and 38

Rev 37	Rev 38
Line 227...	Line 227...
`state_data_write <= next_state_data_write;`	`state_data_write <= next_state_data_write;`

`case(state_data_write)`	`case(state_data_write)`
`2'd0:`	`2'd0:`
`begin`	`begin`
	`if(credit_counter > 6'd55)`
	`begin`
	`overflow_credit_error <= 1'b1;`
	`end`
	`else`
	`overflow_credit_error <= 1'b0;`

`mem[wr_ptr]<=data_in;`	`mem[wr_ptr]<=data_in;`
`end`	`end`
`2'd1:`	`2'd1:`
`begin`	`begin`
	`if(wr_en)`
	`mem[wr_ptr]<=data_in;`
	`else`
`mem[wr_ptr]<=mem[wr_ptr];`	`mem[wr_ptr]<=mem[wr_ptr];`
`end`	`end`
`2'd2:`	`2'd2:`
`begin`	`begin`
`wr_ptr <= wr_ptr + 6'd1;`	`wr_ptr <= wr_ptr + 6'd1;`
Line 244...	Line 254...
`mem[wr_ptr]<=mem[wr_ptr];`	`mem[wr_ptr]<=mem[wr_ptr];`
`wr_ptr <= wr_ptr;`	`wr_ptr <= wr_ptr;`
`end`	`end`
`endcase`	`endcase`

`if(wr_en && credit_counter > 6'd55)`
`begin`
`overflow_credit_error <= 1'b1;`
`end`
`else`
`overflow_credit_error <= overflow_credit_error;`
`end`	`end`
`end`	`end`

`//FULL - EMPTY COUNTER`	`//FULL - EMPTY COUNTER`

Line 364...	Line 368...
`else`	`else`
`begin`	`begin`
`open_slot_fct<= 1'b0;`	`open_slot_fct<= 1'b0;`
`end`	`end`

	`if(rd_en)`
	`begin`
`data_out <= mem[rd_ptr];`	`data_out <= mem[rd_ptr];`
`end`	`end`
	`else`
	`begin`
	`data_out <= data_out;`
	`end`

	`end`
`2'd2:`	`2'd2:`
`begin`	`begin`
`open_slot_fct<= open_slot_fct;`	`open_slot_fct<= open_slot_fct;`
`data_out <= data_out;`	`data_out <= data_out;`
`end`	`end`