From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Tue, 23 Jun 2020 15:20:12 +0000 (+0200)
Subject: litex_term: keep and reduce inter-frame delay to 1e-5.
X-Git-Tag: 24jan2021_ls180~153
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=309eda42466a473a3d2562e31cfdfcbd1a9057af;p=litex.git

litex_term: keep and reduce inter-frame delay to 1e-5.

Removing it completely would require revisiting the gateware/firmware code of the
UART. Since this is use for test purpose only and already allow > 600KB/s upload
speed, keeping it is acceptable.
---

diff --git a/litex/tools/litex_term.py b/litex/tools/litex_term.py
index 0ae2990d..136dceba 100755
--- a/litex/tools/litex_term.py
+++ b/litex/tools/litex_term.py
@@ -224,7 +224,7 @@ class LiteXTerm:
             current_address += len(frame_data)
             position += len(frame_data)
             remaining -= len(frame_data)
-            time.sleep(1e-4) # FIXME: small delay needed with FT245 FIFO ("usb_fifo"), understand why.
+            time.sleep(1e-5) # Inter-frame delay for fast UARTs (ex: FT245).
         end = time.time()
         elapsed = end - start
         f.close()