avr/avrdude
2
0
Fork 0
mirror of https://github.com/mariusgreuel/avrdude.git synced 2025-09-27 22:45:27 +00:00
Code Issues Projects Releases Wiki Activity

patch #9328: ft245r.c: add TPI support (patches 5-7)

Browse Source 
Submitted by David Mosberger-Tang:
* ft245r.c: Remove the reader thread (also removes
patch #9079)

Eliminate separate reader thread by tracking how many bytes are queued
in the FTDI chip's RX FIFO and reading those bytes when it fills up
(since in synchronous bitbang mode, the chip won't send any more bytes
until it has space in the RX FIFO).  This reduces TPI programming time
by another 33%.

Since write data is now queued as much as possible, we need flush this
queued data (a) before reading and (b) before sleeping.  For the
latter case, a new helper function ft245r_usleep() is introduced.




git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1487 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2021-11-25 09:10:30 +00:00
parent 5bf24e4e96
commit 2015a874e0
2 changed files with 136 additions and 115 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
ChangeLog
View File

@@ -1,3 +1,10 @@
2021-11-25 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by David Mosberger-Tang:
patch #9328: ft245r.c: add TPI support (patches 5-7)
* ft245r.c: Remove the reader thread (also removes
patch #9079)
2021-11-24 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by David Mosberger-Tang: