Activity
From 08/20/2014 to 09/18/2014
09/18/2014
- CB 10:07 AM FPGA Development: RE: Mity L138F FPGA -> OMAP interrupt lines
- Thanks Mike,
I have found the pin mapping for INT0 and INT1 I couldn't find the mapping for the Non Maskable Interrupt (NMI) pin in the table. I also couldn't find the IOSTANDARD to use the interrupt pins.
Chris B.
- MW 09:48 AM FPGA Development: RE: Mity L138F FPGA -> OMAP interrupt lines
- Hi Chris,
The information you need is in Table 4 of the "Carrier Board Design Guide":http://www.criticallink.com/wp-content/uploads/2014/01/MityDSP-L138F-Carrier-Board-Design-Guide.pdf.
-Mike
- I was trying to use an FPGA interrrupt which should be serviced by the DSP core in the OMAP.
From the MityL138.ucf I have the following FPGA pins:
09/16/2014
- MF 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 .t2cdelay to 0.
As I mentioned, the data appearing on the bus (SOMI), driven by the M25PE80 is correct (as seen with... - MW 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 you are setting the delay fields (c2tdelay and t2cdelay), required?
- MF 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 my baseboard file.
I also changed the .type entry in the flash_platform_data structure to "m25pe80".
In this case,...
09/12/2014
- MW 09:19 AM Software Development: RE: Adding SPI flash
- It would not apply (different driver, different logic handling platform arguments).
- JC 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_INTERN_CS variable is used. Unsure if this applies to a fpga spibus though.
09/11/2014
- MW 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 selecting for your part?
The way you have configured it is you are having the SPI controller drive that chip select ... - We have a SPI serial flash device on our board, an M25PE80. It is connected to SPI1 with SPI1_CS1.
I created a baseboard file based on baseboard-industrialio.c and using what was done for the SPI flash in board-mityopmanl138 as a gui...
09/10/2014
- DB 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 will help me in crafting the ARM/DSP comms.
Regards,
Doug - JC 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 likely going to be bigger than your actual message. I agree that the description of the parameter is misleading.
Wh... - I'm modifying the DSP HelloWorld example code from the Wiki site to transfer data types other than strings (see SW Forum message "Data Transfer over DSPLink").
While debugging the transfer of an array of ints, I noticed that in the AR...
09/02/2014
- JC 08:33 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module
- Have you made any progress with this problem?