DAVE™ Forum Discussions

I am using a the Relax XMC4800 Relax Ethercat kit. I have an example project with Ethercat and some stuff added. Tried to remove as much as possible. Had a PWM App to a LED that I removed since I want PWM to the PWM_BC and thought that might be the problem but did not help.
I try to add PWM_BC but all I get is "DAVE is not able to grant your last hardware resources request".
This is my first experience with XMC and Dave.
Can I get more information somehow? As to why it can´t.Or is there some kind of cleanup I need to do?

I tried doing a fresh project. Same kit. Just added PWM_BC and the newly released HALL_POSIF App. Then it works fine so there most be something blocking it in my other project but I don´t know what.
Picture overview of the project where I can't add the App

Picture of the fresh project where I managed to add it.


Any ideas why I can't add it? Show Less

Hello,
could you help me, I'm trying to write a program that's sending data with UART. With basic function Transmit (XMC4800 DAVE 4), everything works but I need to use function "printf". How can I set it up? I need a function or library.

P.S. I've looked at the rest of the topics, they don't have any working solution. Show Less

Hi there,
I am ujsing relax kit 4500. And my main file is .cpp. when I added the ucprobe and generated the code. then two ucprobe.h hasbeen generated. one in the generated/ucprobe/ucprobe.h and apps/ucprobe/template/ucprobe.h. now when i build it then "conflicting declaration of void ProbeScope_Sampling(void); in C linkage" fault comes. Show Less

Hi,

in my XMC4700 application i want to use hibernate pins as digital input and output.

Use "Hib_IO_0" as output works:
- XMC_SCU_HIB_SetPinMode(XMC_SCU_HIB_IO_0, XMC_SCU_HIB_PIN_MODE_OUTPUT_PUSH_PULL_HIBCTRL);
- XMC_SCU_HIB_SetPinOutputLevel(XMC_SCU_HIB_IO_0, XMC_SCU_HIB_IO_OUTPUT_LEVEL_HIGH);


but how can i use "Hib_IO_1" as input ?

Regards,
Hans Show Less

Today we published new versions of DAVE APPs and Device Descriptions.
You will be notified about the update next time you start DAVE4, giving you the possibility to update your installation.

Download DAVE APPs release notes
Download Device Descriptions release notes


Download the complete library update sites as zip file for DAVE 4.4.2 Show Less

My project is using an XMC4200,

When I try to increase the number of channels inn the ADC_MEASUREMENT_ADV to 7, DAVE indicates that it cannot grant request (and often crashes after)

The max number of channels seems to be 8.

This issue does not exist on a project using an XMC4700 . Show Less

I'm trying to use FATFS with the HTTP_SERVER_RTOS_XMC47 DAVE 4.4.2 example project but when add FATFS it wont link because http_server_buff is declared in both httpd.c (line 412) and fs.c (line 60). Any clues as to how I'm supposed to resolve this problem? Show Less

The ETH_LWIP APP provides the possibility to enable debug messages. It does so using the SEGGER_RTT APP.
As an alternative, instead debug semihosting can be used following the next steps:

1. In project setting, add XMC_DEBUG_ENABLE to preprocessor symbols


2. Also in the project settings, under linker settings add –specs=rdimon.specs


3. In main.c add an extern function declaration to initialise_monitor_handles() and call it in main() function.


4. In file lwipopts.h add the following macro definition to enable debug messages

#define LWIP_DEBUG 1

Now you need to turn on the generation of debug messages from the module you are interested in, i.e. the DHCP module

#define DHCP_DEBUG LWIP_DBG_ON

More details can be found at http://www.nongnu.org/lwip/2_1_x/group__lwip__opts__debug.html

5. In the debug configuration, semihosting need to be enabled. Show Less