URL https://opencores.org/ocsvn/ha1588/ha1588/trunk

Subversion Repositories ha1588

[/] [ha1588/] [trunk/] [rtl/] [rtc/] [rtc.v] - Diff between revs 19 and 22

Rev 19	Rev 22
Line 24...	Line 24...
`reg [31:0] adj_cnt;`	`reg [31:0] adj_cnt;`
`reg [39:0] time_adj; // 39:32 ns, 31:0 ns_fraction`	`reg [39:0] time_adj; // 39:32 ns, 31:0 ns_fraction`
`// frequency and small time difference adjustment registers`	`// frequency and small time difference adjustment registers`
`always @(posedge rst or posedge clk) begin`	`always @(posedge rst or posedge clk) begin`
`if (rst) begin`	`if (rst) begin`
`period_fix <= 40'd0;`	`period_fix <= period_fix; //40'd0;`
`adj_cnt <= 32'hffffffff;`	`adj_cnt <= 32'hffffffff;`
`time_adj <= 40'd0;`	`time_adj <= time_adj; //40'd0;`
`end`	`end`
`else begin`	`else begin`
`if (period_ld) // load period adjustment`	`if (period_ld) // load period adjustment`
`period_fix <= period_in;`	`period_fix <= period_in;`
`else`	`else`
Line 88...	Line 88...
`else`	`else`
`time_acc_30n_08f <= time_acc_30n_08f + {22'd0, time_adj_08n_08f};`	`time_acc_30n_08f <= time_acc_30n_08f + {22'd0, time_adj_08n_08f};`

`if (time_acc_48s_inc)`	`if (time_acc_48s_inc)`
`time_acc_48s_inc <= 1'b0;`	`time_acc_48s_inc <= 1'b0;`
	`else if (time_acc_modulo == 38'd0)`
	`time_acc_48s_inc <= 1'b0;`
`else if (time_acc_30n_08f + {22'd0, time_adj_08n_08f} + {22'd0, time_adj_08n_08f} >= time_acc_modulo)`	`else if (time_acc_30n_08f + {22'd0, time_adj_08n_08f} + {22'd0, time_adj_08n_08f} >= time_acc_modulo)`
`time_acc_48s_inc <= 1'b1;`	`time_acc_48s_inc <= 1'b1;`
`else`	`else`
`time_acc_48s_inc <= 1'b0;`	`time_acc_48s_inc <= 1'b0;`