For anyone using FreeRTOSv202210.01-LTS (or presumably newer versions), leave the ALT_ENHANCED_INTERRUPT_API_PRESENT definition in system.h as it is, i.e. don't change it to ALT_LEGACY_INTERRUPT_API_PRESENT. The default configuration works just fine now, whereas the legacy configuration gives you a compile error.
For anyone who experiences the "undefined reference to 'restore_sp_from_pxCurrentTCB' in port.c" error, the solution is to open the Makefile for the project, find the line that says "ASM_SRCS := " and add FreeRTOS/portable/GCC/NiosII/port_asm.S to the line. For some reason its not already there. This should result in a successful build after following along here
Hi, thank you for the video, very informative! I'm on an older copy of quartus (14.1, licensed with a bunch of stuff) and I am trying to get FreeRTOS running on my Nios setup. I seem to be having a fight with the system timer. In my case, it seems that the altera init code sets up and launches the timer before calling main(), and I think this is causing FreeRTOS to fail to configure the timer. In your case, you didn't seem to have to stop the altera code, your task timer "just worked".. Any ideas? In my case with FreeRTOS, the timer sets the IRQ high and never clears it again. I'm digging in to see if the FreeRTOS timer setup code is failing..
I have it working now. Aside from a few minor "finger trouble" mistakes, I had put my JTAG UART on the highest priority interrupt (IRQ0), which was a bad idea. The Jtag UART was hogging the cpu so that the Timer IRQ never had a chance. All better now..
Is it possible to run without external memory(sdram)? I want to running with only on-chip memory include Nios II. And I want to use the FreeRTOS.(latest version)
I am using a Chinois board, I v seen you use the System and SDRAM Clocks for DE-series boards for the clocks, could I use the same thing even if my board is not DE10?
@@tscevers I used the PLL from the altera library and it works good for now, I have an issue with the timing parameter in the SDRAM controller, with my memory I couldn't find all parameters and I don't have any idea how to calculate them. I am using the H57V2562GTR-75C running at 133MHz.
Using Quartus Prime Lite 18.1 and FreeRTOSv202212.01 - Compile error: "FreeRTOS/include/FreeRTOS.h:59:28: fatal error: FreeRTOSConfig.h: No such file or directory" The problem is that FreeRTOS.h cannot see FreeRTOSConfig.h The solution is to either move FreeRTOSConfig.h into the FreeRTOS/include folder or change the include statement in FreeRTOS.h to "../../FreeRTOSConfig.h"
For anyone using FreeRTOSv202210.01-LTS (or presumably newer versions), leave the ALT_ENHANCED_INTERRUPT_API_PRESENT definition in system.h as it is, i.e. don't change it to ALT_LEGACY_INTERRUPT_API_PRESENT. The default configuration works just fine now, whereas the legacy configuration gives you a compile error.
Damn, your keyboard must HATE you....
For DE1-SoC users, please move all the .h files into the BSP folder. Otherwise, the .h files will not be included in the project
For anyone who experiences the "undefined reference to 'restore_sp_from_pxCurrentTCB' in port.c" error, the solution is to open the Makefile for the project, find the line that says "ASM_SRCS := " and add FreeRTOS/portable/GCC/NiosII/port_asm.S to the line. For some reason its not already there. This should result in a successful build after following along here
Hi, thank you for the video, very informative! I'm on an older copy of quartus (14.1, licensed with a bunch of stuff) and I am trying to get FreeRTOS running on my Nios setup. I seem to be having a fight with the system timer. In my case, it seems that the altera init code sets up and launches the timer before calling main(), and I think this is causing FreeRTOS to fail to configure the timer. In your case, you didn't seem to have to stop the altera code, your task timer "just worked".. Any ideas? In my case with FreeRTOS, the timer sets the IRQ high and never clears it again. I'm digging in to see if the FreeRTOS timer setup code is failing..
I have it working now. Aside from a few minor "finger trouble" mistakes, I had put my JTAG UART on the highest priority interrupt (IRQ0), which was a bad idea. The Jtag UART was hogging the cpu so that the Timer IRQ never had a chance. All better now..
Is it possible to run without external memory(sdram)? I want to running with only on-chip memory include Nios II. And I want to use the FreeRTOS.(latest version)
Could you do it, pal?
I am using a Chinois board, I v seen you use the System and SDRAM Clocks for DE-series boards for the clocks, could I use the same thing even if my board is not DE10?
I am not familiar with that board, but I would think it would be possible.
@@tscevers I used the PLL from the altera library and it works good for now, I have an issue with the timing parameter in the SDRAM controller, with my memory I couldn't find all parameters and I don't have any idea how to calculate them. I am using the H57V2562GTR-75C running at 133MHz.
@@embeddedsemrade most of those parameters should come from the datasheet for the memory chip you are using...
@@tscevers Ok, if I want to add some leds and keys do I have to connect them to the SDRAM Or to the SRAM, please?
Using Quartus Prime Lite 18.1 and FreeRTOSv202212.01 - Compile error: "FreeRTOS/include/FreeRTOS.h:59:28: fatal error: FreeRTOSConfig.h: No such file or directory"
The problem is that FreeRTOS.h cannot see FreeRTOSConfig.h
The solution is to either move FreeRTOSConfig.h into the FreeRTOS/include folder or change the include statement in FreeRTOS.h to "../../FreeRTOSConfig.h"
Does this work for de2-115 board as well?
It should, however the IP for the onboard ram is different if I remember correctly.
@@tscevers Thank you kindly! I have already made these connections, in the system for the ram :)