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<mattb0ne>
yeah I am trying to implement a filter on the PRU now
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<Cocus>
hi!
<Cocus>
I'm trying to build a yocto image for the old beagleboard (omap3350, with MACHINE="beagleboard" set on my local.conf). I'm using dunfell for yocto's poky and meta-oe branches, but I'm also using meta-ti (which in turn requires meta-arm and meta-arm-toolchain). I've created a wic image with the u-boot, uImage, MLO and the dtbs, which I flashed on my
<Cocus>
sd card. the uboot seems to load fine, although there's no good script to boot the kernel image. I've used fatload, like "fatload mmc 0:1 0x80300000 uImage", which it sorta seems to load, but the kernel never starts. I've tried with zImage + dtb (fatload mmc 0 0x82000000 zImage and fatload mmc 0 0x88000000 omap3-beagle.dtb, and then bootz
<Cocus>
0x82000000 - 0x88000000), but same thing
<Cocus>
what could I be doing wrong? I'm suspecting the defconfig of the kernel is not correct for this platform, and its using the beaglebone am335x instead
<Cocus>
I've used dunfell just because it's the "most recent one" that still had the "beagleboard.conf" machine; it uses the linux 5.10 staging from meta-ti, maybe it's too new?
<Cocus>
btw, I forgot to add logs, but they're pretty boring. for the uImage, I get
<set_>
Anyway, I plugged in and tried to get output/feedback from the ' wake up domain serial port '.
<set_>
Aw.
<set_>
Thank you.
<static_rocket>
information on that is scattered though. bits and pieces of potential use cases other than early device boot are sprinkled around the various ti docs
<set_>
Nice. I will look again and again. So, has anyone or you, for instance, been able to attach a TTL to USB adapter and see output w/ this serial yet?
<set_>
I mean...someone somewhere. I am sure but...
<static_rocket>
I haven't personally tried, not sure about the community
<set_>
Would using the...okay.
<set_>
No issue.
<set_>
I am still finding reasons why I should plug in the XDS110 to the six pin debug header...
<set_>
I broke down and got the adapter from that Plug of Nails company. So, it is just a matter of time.
<set_>
Oh!
<set_>
So, for fast boot sequences, one would set up the AI-64 in a particular manner and then use the the 'wake up domain serial' to get output.
<set_>
I see i2c and uart channels are available in this domain.
<set_>
So, it seems there is a firewall that cannot be used directly w/ r/w but using this serial domain needs a firewall.
<set_>
Hey? What is implied here when people say "System Firmware"?
<set_>
Like that link leads me to a million hits of back and forth readings. But, firewall sticks out and so does System Firmware.
<set_>
Aw!
* set_
says System Firmware is a generic term for a lot of different mechanisms w/in TI's infrastructure of "things" like TIFS, RM, and PM.
<mattb0ne>
what does this mean
<mattb0ne>
"The factory setting of control signal voltage is 24V, must need to set 5V/24V
<mattb0ne>
rotating switch if it is 5V"
<mattb0ne>
what the hell is a rotating switch
<static_rocket>
@mattb0ne:libera.chat: I assume you are talking about the CL86T - Closed Loop Stepper Driver
<static_rocket>
There's a rotating switch, or rotary switch, that selects one of a few predetermined peak current selections. They have a breakdown in the manual.