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

09/16/2014

09:55 AM Software Development: RE: Adding SPI flash

The part works in SPI mode 0 or 3, but I tried all four modes (0 - 3). I also tried setting the fields .c2tdelay and... Mary Frantz

09:45 AM Software Development: RE: Adding SPI flash

Is the SPI mode field correct (polarity and phase, CPOL and CPHA is the part in SPI_MODE_0)?
You also look like y... Michael Williamson

09:06 AM Software Development: RE: Adding SPI flash

I confirmed with a scope that the chip select was not active.
I added DA850_GPIO2_15 to the the array of gpios in ... Mary Frantz

09/12/2014

09:19 AM Software Development: RE: Adding SPI flash

It would not apply (different driver, different logic handling platform arguments). Michael Williamson

09:17 AM Software Development: RE: Adding SPI flash

Note that if you want to use the hardware designated chip select for that spibus instead of a gpio then the SPI_INTER... Jonathan Cormier

09/11/2014

06:18 PM Software Development: RE: Adding SPI flash

Hi Mary,
Have you configured the pin-mux for the DA850_GPIO2_15, which would correspond to the chip select you are... Michael Williamson

01:20 PM Software Development: Adding SPI flash

We have a SPI serial flash device on our board, an M25PE80. It is connected to SPI1 with SPI1_CS1.
I created a ba... Mary Frantz

09/10/2014

01:46 PM Software Development: RE: DSP HelloWorld Message Queue Buffer Length

Thanks for the clarification on the message handler code, and the message structure recommendation.
It definitely w... Doug Browning

11:01 AM Software Development: RE: DSP HelloWorld Message Queue Buffer Length

Doug,
As far as I understand the anLength is really the length of the buffer passed between the DSP and ARM and is... Jonathan Cormier

10:01 AM Software Development: DSP HelloWorld Message Queue Buffer Length

I'm modifying the DSP HelloWorld example code from the Wiki site to transfer data types other than strings (see SW Fo... Doug Browning

09/02/2014

08:33 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

Have you made any progress with this problem? Jonathan Cormier

08/19/2014

11:31 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

yes,
echo "146" > /sys/class/gpio/export --> sh: write error: Invalid argument
it may be that fpga_gpio... HYUNG KI KIM

08:50 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

Did you mean ... Jonathan Cormier

08:26 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

HYUNG KI KIM wrote:
> I'm tryint to control FPGA of GPIO on the linux driver side with MityL138-DSP(L138-FI-236-RL)... HYUNG KI KIM

08:24 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

HYUNG KI KIM wrote:
> I'm tryint to control FPGA of GPIO on the linux driver side with MityL138-DSP(L138-FI-236-RL)... HYUNG KI KIM

08:23 AM Software Development: How to probe the fpga_ctrl & fpga_gpio.ko module

I'm tryint to control FPGA of GPIO on the linux driver side with MityL138-DSP(L138-FI-236-RL) mdule.
and, loading t... HYUNG KI KIM