Mity CPU Platforms » MitySOM-335x (ARM Cortex-A8 Based Products)

04/24/2014

08:19 AM Software Development: RE: How to access ADC inputs from Linux kernel/application

The way the git cherry-pick command works is by taking a commit and applying it to your branch. It can be a handy to... Jonathan Cormier

04/23/2014

05:54 PM Software Development: RE: High Latency for GPIO Interrupts in 3.2 Kernel

Thanks. I'll make the change and let you know in a day or two how this works for me. Michael Karasoff

03:36 PM Software Development: RE: High Latency for GPIO Interrupts in 3.2 Kernel

Okay thanks for the feedback. I'm planning on committing the following patch which should have the same effect.
P... Jonathan Cormier

03:28 PM Software Development: RE: High Latency for GPIO Interrupts in 3.2 Kernel

Yes that is it.
I've been running the kernel with this change for quite a while, and haven't seen any issues. Michael Karasoff

02:32 PM Software Development: RE: High Latency for GPIO Interrupts in 3.2 Kernel

Okay found the register in the 335x TRM:
>6.5.1.42 INTC_PENDING_IRQ3 Register (offset = F8h) Jonathan Cormier

02:01 PM Software Development: RE: High Latency for GPIO Interrupts in 3.2 Kernel

Hi Michael,
I'm trying to understand what your patch effects. Do you know what the 0xf8 register refers to? I've ... Jonathan Cormier

05:18 PM Software Development: RE: How to access ADC inputs from Linux kernel/application

Not sure I see how this is a cherry pick. I don't think I've changed any history.
I appreciate that Critical Li... Michael Karasoff

03:39 PM Software Development: RE: How to access ADC inputs from Linux kernel/application

Ahh interesting. You've effectively done a manual cherry-pick. That's okay whatever gets the job done. You probabl... Jonathan Cormier

03:33 PM Software Development: RE: How to access ADC inputs from Linux kernel/application

Actually, I didn't run a "git merge". I'm forked, and my origin is my own repo. I set up a seperate remote for the ... Michael Karasoff

01:28 PM Software Development: RE: How to access ADC inputs from Linux kernel/application

I asked to clarify and to hopefully learn something. My current understanding of what you did was to merge the mitya... Jonathan Cormier

01:03 PM Software Development: RE: How to access ADC inputs from Linux kernel/application

Jonathan,
Can one not merge selected changes between two commits? Git is a powerful tool, but it hasn't redefined... Michael Karasoff

08:27 AM Software Development: RE: How to access ADC inputs from Linux kernel/application

I'm a little confused by your merging. cl_v3.2_AM335XPSP_04.06.00.07 is a tag and not a branch and is a on the mitya... Jonathan Cormier

12:51 AM Software Development: RE: How to access ADC inputs from Linux kernel/application

Nevermind. The problem was on my end - merge error. :)
So I have the ADC driver loaded, and I have /sys/devices/... Michael Karasoff

12:21 AM Software Development: RE: How to access ADC inputs from Linux kernel/application

Correction, I merged the ADC changes into cl_v3.2_AM335XPSP_04.06.00.07, not AM335XPSP_04.06.00.02.
Still the same... Michael Karasoff

12:18 AM Software Development: RE: How to access ADC inputs from Linux kernel/application

I found the updated ADC driver code in the mityarm-linux-v3.2 branch. I merged in the ADC changes into AM335XPSP_04.... Michael Karasoff

04/22/2014

07:47 PM Software Development: RE: How to access ADC inputs from Linux kernel/application

Any updates on this? Any idea how to access the ADC from kernel version 3.2? Michael Karasoff

04/21/2014

03:19 PM Software Development: RE: Booting from Nand

Bindu,
The datasheet says the part is 4Gb which divided by 8 is 512MB. We don't have any parts that carry a nand ... Jonathan Cormier

02:50 PM Software Development: RE: Booting from Nand

Jonathan, thank you for all the information. We put his task on the back burner for a while -- but it works perfectly... Bindu Jagannatha