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  1. Hello Ciprian thanks a lot for this thorough explanation!! I'll try and see if my elf fit in bram then...
  2. Hi Bianca, Thanks a lot for answering!! and with sdk projects, what file do have to put in the sd card?
  3. hello every one, I've been using qspi on nexys video board for auto configuration. I understand that qspi has limited life cycle of r/w so I thougth about using an external sd card. i googled this but couldn t find any article or tutorial explaining how to do this. i would be grateful for any help! nattib
  4. thanks a lot Jon, I'll go with that!!
  5. thank you for answering Jon, but now, can I connect the timer pin directly to th Pmod connetor pin? should I make it external and then constraint it or do i have to wrap my design first and then connect to the pin ?
  6. Hi again, after having a look at the pmod con3 schematic I wonder what would an IP serves for? it looks like just adding a series resistor between the driver signal and the pmod connectror pin with only configuration to set the source of the power line. now i wonder, since i am generating my pwm control signal from the microblaze timer, can't I just connect the timer output to the corresponding connector pin? apologies for adding new questions without waiting for answers
  7. Hi Jon, Thanks a lot. I ll try and see if i manage to do it...thanksagain is "add a HDL block" the same as "add a module" ? this one give the only possibility of a RTL type module I just have run over the example notarobot but i m still completely in the dark: i can t guess how to do it. in the link you provided i can see a vhdl component for the pmod con3. is this the one i have to use as a added module? or should write my own?
  8. Hi all, I would like to control a servo through a microblaze application. I saw that there is a Pmod for this, here on digilent. I gather its the Pmod CON3. the problem is that I can t find its ip core anywhere in the vivado library (i use vivado 2016.4). can anyone please point me to it? thanx. nattib
  9. hi jon, thank you for answering, now i know at least my code is correct. the tutorial you pointed to uses the hello world example , in which i didnt find any trace of interrupt use, at least explicitly. i ll see with the thread maybe it could lighten me up :). thanx anyway!! nattib
  10. Hi everyone, I only posted this question after i tried everything I could. I am trying to use uartlite with microblaze and interrupt controller (nexysvideo board) to receive some data. I wrote a lot of variations but it doesnt seem to work. my simplest basic code was to turn on a led when a byte is received. building of the project is fine, no errors but nothing happens when runing in hardware. i also tried the provided example (uartlite_intrc_example) which ask for a physical loopback (my understanding is that i have to send back whatever data i receive in the terminal, but i m not sure,
  11. Hi Jon, your project worked. now I will have to redo my own and try to figure out where I failed the last times....thank you again
  12. Hi Jon, Thank you very much!I'll try it and tell you the result
  13. Hi Jon, Actually, sdk doesn't show any error, the programming of the fpga and the qspi as well. I use the 50 MHz clock for ext_spi_clk. the example is just blinking led 0 (on and off for a certain time). in debug mode it works and the change in blinking is relatively long but visible. I tried other simple examples where it never reaches the bootloader as if there was no qspi in the design although it is listed with the ips imported from vivado.
  14. Hi Jon, thank you for answering. any idea of what might be the cause of my project not working in hardware then? the qspi itself is fine because I tried it with a vivado only project, but with sdk sometimes it even never reach the step of creating the bootloader (finish button disabled) or as with this simple project everything looks fine until it reachs the step of running in hardware where it stucks....I will have a look at your project and try to compare mine with it if I manage to find vivado 2017 (I use 2016.4)....thanks a lot again!
  15. Hi everyone.. I 'm trying to figure out how to make my nexys video boot from qspi flash. I tried several offsets I found around the net...the sdk project build successfully as well as the programming of FPGA and flash (following the steps in the digilent tutorial) but...nothing happens after that. i tried the same simple project (the gpio example) without qspi and it works when " run as configuration" mode. Now i suspect the offset used for flash image to be guilty. (my block design is just microblaze with debug module, gpio leds, uart (which i dont use in software), and the qspi with