Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

06/20/2024

07:57 PM Software Development: RE: RS485 Direction Control on UART1

How long are you looking for?
The kernel documentation mentions getting extended distance for rs232 by using UTP c... Jonathan Cormier

03:43 PM Software Development: RE: RS485 Direction Control on UART1

Hi Jonathan,
thanks for the quick response. I will look into the 8250 driver, it might be useful (if only for my ... Michael Bisbano

06/19/2024

07:09 PM Software Development: RE: RS485 Direction Control on UART1

The serial 8250 driver has an rs485 mode which we extended to allow using a gpio to generate a RS485 TX enable. Howe... Jonathan Cormier

04:36 PM Software Development: RS485 Direction Control on UART1

Hi all,
My application requires installation embedded in a battery power system with long wire. I would like acces... Michael Bisbano

06/10/2024

11:08 AM Software Development: RE: FPGA (FIFO) -> DSP (DMA) transfer problem

There is a cross-bar that sits between EMIFA on the L138 and the DSP / ARM / peripheral masters.
When a read reque... Michael Williamson

07:52 AM Software Development: RE: FPGA (FIFO) -> DSP (DMA) transfer problem

Thank you for answer.
We will conduct the above experiment later.
Currently, we are trying to increase the RD Clk... Kyungguk Bok

06/05/2024

09:05 PM Software Development: RE: FPGA (FIFO) -> DSP (DMA) transfer problem

Hello,
Based on the FPGA code you shared I believe that the primary issue you are having is that your FPGA code r... Gregory Gluszek

12:42 AM Software Development: RE: FPGA (FIFO) -> DSP (DMA) transfer problem

Thank you for answer.
As you suggested, read Cache_and_Memory and
We proceeded by modifying the source as shown bel... Kyungguk Bok

06/03/2024

03:08 PM Software Development: RE: FPGA (FIFO) -> DSP (DMA) transfer problem

The fpga guys can step in if I've missed something but it looks to me like your missing cache invalidate calls. If t... Jonathan Cormier

08:57 AM Software Development: FPGA (FIFO) -> DSP (DMA) transfer problem

hello.
I am posting because I have a question related to DMA.
The last CCS issue was not resolved, so I am loading ... Kyungguk Bok