URL:
<https://savannah.nongnu.org/patch/?9963>
Summary: UsbAsp 3 MHz patch for UsbAsp-flash firmware
Project: AVR Downloader/UploaDEr
Submitted by: mamuttme
Submitted on: Sat 01 Aug 2020 09:06:42 AM UTC
Category: None
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
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Details:
I have patched the usbasp support for use of 3 MHz SCK as in the UsbAsp-flash
firmware:
https://github.com/nofeletru/UsbAsp-flash
(I am not the author of this firmware, however I have tested it and find it
useful).
My patch tests the capabilities of the firmware using the
USBASP_FUNC_GETCAPABILITIES request, so there should be no influence on the
devices which do not support 3 MHz. I have looked into the firmware's code,
and it would be theoretically possible to increase the SCK speed up to 6 MHz,
but this would be only reasonable when the target's F_CPU would be >18 MHz,
which I think is rare.
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File Attachments:
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Date: Sat 01 Aug 2020 09:06:42 AM UTC Name: usbasp_sck_3mhz.patch Size: 3KiB
By: mamuttme
<http://savannah.nongnu.org/patch/download.php?file_id=49594>
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