increase cap factor

rahulk29 · Oct 15, 2024 · 5ba3a38 · 5ba3a38
1 parent bd31929
commit 5ba3a38
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/blocks/decoder/mod.rs b/src/blocks/decoder/mod.rs
@@ -68,7 +68,7 @@ struct PlanTreeNode {
 impl DecoderTree {
     pub fn new(bits: usize, cload: f64) -> Self {
         let plan = plan_decoder(bits, true, false);
-        let stages = (cload / INV_MODEL.cin * plan.le_b()).log(3.).ceil() as usize;
+        let stages = (cload / INV_MODEL.cin * plan.le_b()).log(4.).ceil() as usize;
         let depth = plan.min_depth();
         println!("target num stages = {stages}, current min num stages = {depth}");
         let plan = if stages > depth {

diff --git a/src/blocks/sram/mod.rs b/src/blocks/sram/mod.rs
@@ -215,7 +215,7 @@ impl Script for SramPhysicalDesignScript {
         params: &Self::Params,
         ctx: &substrate::data::SubstrateCtx,
     ) -> substrate::error::Result<Self::Output> {
-        let wl_cap = (params.cols() + 4) as f64 * WORDLINE_CAP_PER_CELL * 1.5; // Safety factor.
+        let wl_cap = (params.cols() + 4) as f64 * WORDLINE_CAP_PER_CELL * 2.; // Safety factor.
         let col_params = params.col_params();
         let cols = ctx.instantiate_layout::<ColPeripherals>(&col_params)?;
         let rbl_rows = ((params.rows() / 12) + 1) * 2;