FreeRTOS porting for Renesas U2A16 RH850 R7F702300BFABA-C microcontroller

Kernel
1

I am using Renesas RH850 R7F702300BFABA-C microcontroller and CS+ IDE and CC-RH toolchain I need to port FreeRTOS in that, How can i find portable file for my MCU Specific series ?

2

@keyur_khatri

You can find the portable file for Renesas RH850 series here: FreeRTOS-Kernel-Community-Supported-Ports/CCRH/RH850_F1KM_S4 at main · FreeRTOS/FreeRTOS-Kernel-Community-Supported-Ports · GitHub

The above linked repository is submoduled in the FreeRTOS-Kernel, in this path: portable/ThirdParty

3

Can i Use this port.c , portasm.s , and postmacro.h file directly for my MCU ?

4

You should be able to use that. Here is an example demo for RH850 F1KM-S4 and F1KH-D8 that uses this port files.

The above linked demo repository is submoduled in the FreeRTOS, in this path:
Demo/ThirdParty

5

I have included these portable files in my project but in build i am getting error regarding the ticktimer interuppt in Renesas CS+ IDE

Can you please help me in these?

6

Can you please post the details of the error in the thread?

7

This source code is ported from provided F1KM and F1KH ports.
Hope it’s useful for you,

Demo project: GitHub - renesas/FreeRTOS-Partner-Supported-Demos at u2x_port

1 Like
8

I have port the FreeRTOS and I am able to compile code successfully and able to create a task
but when i use the timers functions like xTimerCreate getting error , check this below error
E0562310:Undefined external symbol “_xTimerCreate” referenced in “DefaultBuild\r_cg_main.obj”

Can you please guide me how can i resolve this error?

9

Are you compiling timers.c in your project. Did you set configUSE_TIMERS to 1in your FreeRTOSConfig.h?

10

Yes I have Set define this in freeRTOSconfig.h file
#define configUSE_TIMERS 1
#define configTIMER_TASK_PRIORITY 2
#define configTIMER_QUEUE_LENGTH 10
#define configTIMER_TASK_STACK_DEPTH 128

and i have include timers.h in build

11

Have you enabled configSUPPORT_DYNAMIC_ALLOCATION? Its required to use xTimerCreate.

If you prefer not to enable it, then you should use xTimerCreateStatic instead. [provided you have set configSUPPORT_STATIC_ALLOCATION]

12

Yes in FreeRTOS.h file it is define like this
#ifndef configSUPPORT_DYNAMIC_ALLOCATION
** /* Defaults to 1 for backward compatibility. /*
** #define configSUPPORT_DYNAMIC_ALLOCATION 1**
#endif

and I have define this same in FreeRTOSconfig.h file like this
#define configSUPPORT_DYNAMIC_ALLOCATION 1

13

I have done porting using this github link Renesas_FreeRTOS/RH850/freeRTOS/V10.4.1/CS+ with inline asm at main · dinguluer/Renesas_FreeRTOS · GitHub

Is there anything wrong in FreeRTOSConfig.h or timers.h file ?

14

You need to compile timers.c file not the .h file.

15

thank you for your response , I have already done this changes and i am not getting any error now

16

Glad that you figured.