Porting the AN00109: Multiple-Firmware-Booting app onto XK-AUDIO-316-MC-AB development kit

[vladimir593]

Hi everyone!

I tried to compile the AN00109 app for the XK-AUDIO-316-MC-AB board.
I went through all the steps in an00109 .pdf instruction, but unfortunately
I am getting the following error(loader.xc):

AN00109_src\src>xflash --factory app_factory_image_button_up/bin/app_factory_image_button_up.xe --upgrade 1 app_factory_image_button_down/bin/app_factory_image_button_down.xe --loader loader.o
xmap: Error: Target core mismatch between "XS3" (from "main.c") and "XS1" (from "loader.xc").
Error: F03010 Failed to compile second stage bootloader

Has anyone experienced this issue?

Then I tried the code described in "Customize flash loader" paragraph in XMOS XTC Tools 15.2 guide
(file.xc)
But with this example I cant produce the loader.o file:

AN00109_src\src>xcc -c file.xc -o loader.o
file.xc:6:1: error: pointer return type must be marked movable, alias or unsafe
extern void * readFlashDataPage(unsigned addr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
file.xc:8:5: error: void * pointer must be declared as unsafe
void* imgAdr;
^~~~~~~~
file.xc:11:7: error: void * pointer must be declared as unsafe
void* ptr = readFlashDataPage(0);
^~~~~
file.xc:20:10: error: assignment to restricted pointer
imgAdr = adr;
~~~~~~~^~~~~
file.xc:24:10: error: incompatible types in return
return imgAdr;
^~~~~~

I assume that the method described in AN00109 app notes doesn't work because of different architectures, but
the example described in XTC Tools 15.2 doesn't work also.
What I am trying to do is actually switch between two apps with a button.
Has anyone had any experience with the custom bootloader? What can be the reason for those issues?

Best regards,
Vladimir

AN00109: https://www.xmos.com/download/AN00109:- ... .1rc1).pdf
Customized flash loader: https://www.xmos.com/documentation/XM-0 ... ash-loader

loader.xc

file.xc

[mmar]

For 216 i create makefile and use make to create o file.

Code: Select all

TARGET = x216_C20A.xn

OBJS	= loader.o
SOURCE	= loader.xc
HEADER	= 
OUT	= 
CC	 = xcc
FLAGS	 = -c -Wall -march=xs2a
LFLAGS	 = 

all: $(OBJS)

loader.o: loader.xc
	$(CC) $(FLAGS) loader.xc 


clean:
	rm -f $(OBJS) $(OUT)
	
XMOS_MAKE_PATH ?= ../..
ifneq ($(wildcard $(XMOS_MAKE_PATH)/xcommon/module_xcommon/build/Makefile.common),)
include $(XMOS_MAKE_PATH)/xcommon/module_xcommon/build/Makefile.common
else
include ../module_xcommon/build/Makefile.common
endif


	

change 216 to 316...

[vladimir593]

Hi mmar,

Many thanks for your answer, it works!
I also changed -march=xs2a to -march=xs3a

Best regards,
Vladimir

[vladimir593]

I rewrote a little bit AN00109 app for the XK-AUDIO-316-MC-AB board.
and now it works as expected.

So, instructions for everyone who is interested:

1) xmake
in the main src folder

2) xmake loader.o
in the loader folder

3) xflash --factory app_factory_image_button_up/bin/app_factory_image_button_up.xe --upgrade 1 app_factory_image_button_down/bin/app_factory_image_button_down.xe --loader loader/loader.o
in the main src folder

The app works as follows:
Powering up without any buttons pressed: LED 1 and 2 are lightning
Powering up with Button 0 or 1 or 2 pressed: LED 0 and 3 are lightning

All files are inside .zip
Best regards,
Vladimir

AN00109_XK-AUDIO-316.zip