<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">It will be some work to update. I believe what’s in the existing port is from this:<div class="">atmel-software-package-samv7: Legacy software package for samv7, same70 and sams70 product families.</div><div class="">while the newest software that supports the ATSAMA5 is here, with a different directory layout.</div><div class="">atmel-software-package: Atmel Software Package<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Nov 25, 2018, at 14:45 , Christian Mauderer <<a href="mailto:list@c-mauderer.de" class="">list@c-mauderer.de</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hello Peter,<br class=""><br class="">Thomas mentioned already the bug that has been reported to Microchip.<br class="">Please note that I had two more problems with the BSP on another<br class="">customers board:<br class=""><br class="">- The core clock couldn't be set to the maximum frequency from the data<br class="">sheet. Both possible configurations for that frequency didn't work. The<br class="">first one would have set the PLL to the same frequency as the CPU core<br class="">clock. With that the system was not stable. The other setting (a divider<br class="">of two after the PLL) seemed to work better but that forced me to set<br class="">the PLL to a higher frequency than the data sheet specified. I ended up<br class="">with the lower frequency.<br class=""><br class="">- The external SDRAM seemed to introduce some jitter into the core PLL<br class="">too (not only in the USB PLL which was the reason for the USB bug). With<br class="">higher frequency configurations the system sometimes had an odd<br class="">behaviour: A comparison went wrong when it should go well. Again that<br class="">lead to a slightly lower frequency that seemed stable. So the board now<br class="">runs on only about two thirds of the maximum frequency specified by<br class="">Microchip.<br class=""><br class="">If you still want to use the ATSAM chip: Microchip managed to get a<br class="">better community around the libraries that are used in the BSP for that<br class="">chip. There is a newer version of them somewhere on github. If there is<br class="">funding for it, I would suggest to update the ones that are integrated<br class="">in the ATSAM BSP by the newer ones. They contain quite some bug fixes.<br class="">But it will need some work to do that.<br class=""><br class="">With kind regards<br class=""><br class="">Christian Mauderer<br class=""><br class="">Am 25.11.18 um 19:42 schrieb <a href="mailto:dufault@hda.com" class="">dufault@hda.com</a>:<br class=""><blockquote type="cite" class="">Thank you for the advice. I will not need USB, but will need SDRAM and<br class="">don’t need poor support. Microchip? You tried to push RTEMS for this<br class="">platform tied to space applications, are you monitoring this? The<br class="">platform looks like just what I need but not if you’re not supporting it.<br class=""><br class=""><blockquote type="cite" class="">On Nov 25, 2018, at 13:23 , Thomas Dörfler<br class=""><<a href="mailto:thomas.doerfler@embedded-brains.de" class="">thomas.doerfler@embedded-brains.de</a><br class=""><<a href="mailto:thomas.doerfler@embedded-brains.de" class="">mailto:thomas.doerfler@embedded-brains.de</a>>> wrote:<br class=""><br class="">Peter,<br class=""><br class="">just to make you aware: we designed a board with the ATSAMV7 chip and<br class="">hit some nasty and at least one really ugly bug: operating the USB<br class="">interface concurrently with external SDRAM does not work. Half a year<br class="">after reporting this bug, Microchip confirmed it, but did not plan any<br class="">fix for it. BTW: The conbination (USB+SDRAM) was also available on<br class="">Microchip's evaluation board, but obviously was not tested together at<br class="">Microchips labs...<br class=""><br class="">So: I recommend you to tripple check, whether the ATSAMA5 meets all of<br class="">your expectations.<br class=""><br class=""><br class="">Kind regards,<br class=""><br class="">Thomas.<br class=""><br class="">----- Ursprüngliche Mail -----<br class="">Von: "Peter Dufault" <<a href="mailto:dufault@hda.com" class="">dufault@hda.com</a> <<a href="mailto:dufault@hda.com" class="">mailto:dufault@hda.com</a>>><br class="">An: "Development" <<a href="mailto:devel@rtems.org" class="">devel@rtems.org</a> <<a href="mailto:devel@rtems.org" class="">mailto:devel@rtems.org</a>>><br class="">Gesendet: Sonntag, 25. November 2018 18:38:19<br class="">Betreff: BSP for Microchip ATSAMA5D27-SOM1-EK1<br class=""><br class="">I need to evaluate this for a multi-chip application.<br class=""><br class="">This part is a result of Microchip’s take-over of ATMEL. I’m<br class="">double-checking that to create a BSP based on this I should start with<br class="">the existing ATSAMV7 BSP, I think the peripherals (e.g. network chip<br class="">and so on) are the same as the existing ATSAMV7 port.<br class=""><br class="">Peter<br class="">-----------------<br class="">Peter Dufault<br class="">HD Associates, Inc. Software and System Engineering<br class=""><br class="">This email is delivered through the public internet using protocols<br class="">subject to interception and tampering.<br class=""><br class="">_______________________________________________<br class="">devel mailing list<br class=""><a href="mailto:devel@rtems.org" class="">devel@rtems.org</a> <<a href="mailto:devel@rtems.org" class="">mailto:devel@rtems.org</a>><br class=""><a href="http://lists.rtems.org/mailman/listinfo/devel" class="">http://lists.rtems.org/mailman/listinfo/devel</a><br class="">-- <br class="">-- <br class="">--------------------------------------------<br class="">embedded brains GmbH<br class="">Thomas Doerfler<br class="">Dornierstr. 4<br class="">D-82178 Puchheim<br class="">Germany<br class="">email: Thomas.Doerfler@embedded-brains.de<br class="">Phone: +49-89-18 94 741-12<br class="">Fax: +49-89-18 94 741-09<br class="">PGP: Public key available on request.<br class=""><br class="">Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.<br class=""></blockquote><br class="">Peter<br class="">-----------------<br class="">Peter Dufault<br class="">HD Associates, Inc. Software and System Engineering<br class=""><br class="">This email is delivered through the public internet using protocols<br class="">subject to interception and tampering.<br class=""><br class=""><br class="">_______________________________________________<br class="">devel mailing list<br class=""><a href="mailto:devel@rtems.org" class="">devel@rtems.org</a><br class="">http://lists.rtems.org/mailman/listinfo/devel<br class=""><br class=""></blockquote><br class=""></div></div></blockquote></div><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; border-spacing: 0px; -webkit-text-decorations-in-effect: none;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;">Peter<br class="">-----------------<br class="">Peter Dufault<br class="">HD Associates, Inc. Software and System Engineering</span></font></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px;"><br class=""></span></font></div>This email is delivered through the public internet using protocols subject to interception and tampering.</span></div></span></div></div></div></div></div></div></div></div></div>
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