Activity
From 07/01/2017 to 07/30/2017
07/20/2017
- 06:09 PM Software Development: RE: I2C Slave Communication Hanging
- So I didn't respond right away as you are using verilog and I am more of a VHDL guy, but there is an open drain primi...
- 05:43 PM Software Development: RE: I2C Slave Communication Hanging
- We appear to have finally discovered the root cause of our issue. We actually had a self-inflicted bug where the SCL ...
07/19/2017
- 07:39 PM Software Development: RE: I2C Slave Communication Hanging
- Dan,
I've attached 2 scope shots between the Aardvark as master and the ST1633 as slave:
1. A single byte write w... - 03:42 PM Software Development: RE: I2C Slave Communication Hanging
- Dan,
We'll be conducting investigations this afternoon with both the Linux I2C kernel driver and a bit-bang I2C us... - 03:45 AM Software Development: RE: I2C Slave Communication Hanging
- Jared,
To me it looks like the scope capture you've shown should be correct and as you've said there shouldn't be ...
07/18/2017
- 07:56 PM Software Development: RE: I2C Slave Communication Hanging
- Some additional context / correction:
I2C2 and I2C3 are both configured the same way. If you replace "3" with "2" ... - 07:33 PM Software Development: RE: I2C Slave Communication Hanging
- All,
This is the open drain primitive we are using for the I2C interfaces:
wire w_i2c3_scl_oe, w_i2c3_scl, w_... - 05:09 PM Software Development: RE: I2C Slave Communication Hanging
- Are you using the open drain primitive in the top level of the FPGA project?
-Mike
- 05:00 PM Software Development: RE: I2C Slave Communication Hanging
- I've attached the driver source/header. I'm waiting to hear from the touch controller vendor whether I can share the ...
- 04:50 PM Software Development: RE: I2C Slave Communication Hanging
- We are using I2C2 routed through the FPGA fabric (see image "I2C2_Connector.PNG"). It does have pullups to the best o...
- 04:32 PM Software Development: RE: I2C Slave Communication Hanging
- Also, Can you share a snippet of the user space code you are using to issue the read request?
Thanks.
-Mike
- 04:15 PM Software Development: RE: I2C Slave Communication Hanging
- Which I2C bus are you using? An HPS peripheral connected directly to HPS pins or routed via FPGA fabric?
This alm... - We're experiencing a problem with I2C communications with a slave on address 0x55 on a MitySOM-5CSX, shown in the att...
07/13/2017
- 03:29 PM FPGA Development: RE: I2C Controller
- Thank you, this was resolved, turned out to be a problem with our build scripts.
07/12/2017
- 12:06 PM FPGA Development: RE: I2C Controller
- Harrison
Whenever you change anything to do with HPS pin assignments, you will need to rebuild the preloader and upd...
07/11/2017
- Hello,
Unsure whether to post this under the software or FPGA topic.
We are transitioning from a mostly working...
07/04/2017
- 03:13 PM Software Development: RE: Accessing NOR flash from Linux on 5CSX
- We have a wiki page relating to using the quad spi NOR [primarily centered around booting from NOR]
(https://suppor... - 08:10 AM Software Development: RE: Accessing NOR flash from Linux on 5CSX
- Thanks Tim, that's good news.
Is there any specific doc. for the 5CSZ build? e.g. driver name, build instructio...
07/03/2017
- 05:22 PM Software Development: RE: Accessing NOR flash from Linux on 5CSX
- Bruce
Linux has excellent support for NOR flash devices using the mtd subsytem
http://www.linux-mtd.infradead.org/
... - Our project is currently in the design phase and we are considering using a small amount of NOR flash to read and wri...
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