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ptp: Adjust loop gains in PTP TD leaf clock

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
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Alex Forencich
2026-02-13 21:26:48 -08:00
parent ce8147f174
commit 380e2d521a
1 changed files with 3 additions and 3 deletions
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6
src/ptp/rtl/taxi_ptp_td_leaf.sv
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@@ -422,7 +422,7 @@ always_comb begin
// time integral of error
case (dst_gain_sel_reg && !dst_sync_locked_reg)
1'd0: {dst_ovf, dst_err_int_next} = $signed({1'b0, dst_err_int_reg}) + (PHASE_ACC_W+2)'($signed(sample_acc_sync_reg));
1'd1: {dst_ovf, dst_err_int_next} = $signed({1'b0, dst_err_int_reg}) + (PHASE_ACC_W+2)'($signed(sample_acc_sync_reg) * 2**7);
1'd1: {dst_ovf, dst_err_int_next} = $signed({1'b0, dst_err_int_reg}) + (PHASE_ACC_W+2)'($signed(sample_acc_sync_reg) * 2**5);
endcase
// saturate
@@ -436,8 +436,8 @@ always_comb begin
// compute output
case (dst_gain_sel_reg && !dst_sync_locked_reg)
1'd0: {dst_ovf, dst_phase_inc_next} = $signed({1'b0, dst_err_int_reg}) + ($signed(sample_acc_sync_reg) * 2**4);
1'd1: {dst_ovf, dst_phase_inc_next} = $signed({1'b0, dst_err_int_reg}) + ($signed(sample_acc_sync_reg) * 2**11);
1'd0: {dst_ovf, dst_phase_inc_next} = $signed({1'b0, dst_err_int_reg}) + ($signed(sample_acc_sync_reg) * 2**5);
1'd1: {dst_ovf, dst_phase_inc_next} = $signed({1'b0, dst_err_int_reg}) + ($signed(sample_acc_sync_reg) * 2**9);
endcase
// saturate