diff eeproms/jtagbuf @ 167:8ffcd88d40c3

eeproms: fc-jtag gives way to jtagbuf
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 31 Jul 2023 00:34:38 +0000
parents eeproms/fc-jtag@60b8cf977c3f
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eeproms/jtagbuf	Mon Jul 31 00:34:38 2023 +0000
@@ -0,0 +1,21 @@
+# There exists a tentative plan in FreeCalypso queendom to produce a buffered
+# JTAG adapter design, tentatively named FreeCalypso JTAGbuf.  It is envisioned
+# as being an FT2232H-based adapter (the previous plan was FT2232D, but that
+# chip is now NRND, and the Calypso chip's maximum JTAG TCK frequency of 10 MHz
+# can be achieved only with FT2232H) with LVC buffers between the FTDI chip's
+# fickle I/O pins and the JTAG target connection interface.
+#
+# The present EEPROM configuration is intended for this planned future
+# FreeCalypso JTAGbuf adapter; it is vaporware, but the present config source
+# file takes the place of much older (also vaporware) fc-jtag config that went
+# back to the beginning of freecalypso-hwlab Hg repository.
+
+vid 0x0403	# FTDI
+pid 0x7151	# Allocated by FTDI to Falconia Partners LLC
+manuf FreeCalypso
+product Buffered JTAG Adapter
+
+# Try to be nice to Weendoze lusers (or should it be Losedows?)
+
+byte00	0x00	# Channel A driver: D2XX
+byte01	0x08	# Channel B driver: VCP