Ho Dave, I use FreeRTOS. I'm going to verify and I let you know Thanks Il ven 3 mag 2024, 19:45 Dave Nadler ha scritto: > Hi Ernesto- If you are not using FreeRTOS ignore this. > If you are: Perhaps you have not got a correct sbrk setup. > Many FreeRTOS demos from NXP and ST have this problem. > See https://nadler.com/embedded/NXP_newlibAndFreeRTOS.html > Hope that helps! > Best Regards, Dave > > On 5/3/2024 1:04 PM, Ernesto Vigano' wrote: > > It's a copy-paste error. > The syntax is the right one > > Il ven 3 mag 2024, 09:22 Christophe Lyon ha > scritto: > >> Hi, >> >> On 5/3/24 08:11, Ernesto Vigano' wrote: >> > I need to use sprintf with floating point numbers (%f format specifier) >> > in a project based on rpmsg_lite_str_echo_rtos on the cortex-M (NXP >> > Processor). >> > I use the recommended >> > arm-gnu-toolchain-12.3.rel1-mingw-w64-i686-arm-none-eabi >> > I see that when I call >> > >> > sprintf(str, "%d" 3); >> > >> > the number 3 is printed to the string str. >> > >> > But if I have a floating point number and I use "%f" format specifier >> > >> > sprintf(str, "%f" 3.5); >> >> Is this a copy/paste error, or did you forget the ',' before the number >> you want to print? >> >> Thanks, >> Christophe >> >> > >> > I get >> > ASSERT ERROR " Balloc succeeded ": file >> > >> "/data/jenkins/workspace/GNU-toolchain/arm-12/src/newlib-cygwin/newlib/libc/stdlib/mprec.c" >> Line "783" function name "" >> > >> > It seems similar to this error >> > forum.pjrc.com/index.php >> > < >> https://forum.pjrc.com/index.php?threads/strange-compiling-problem-assertion-balloc-succeeded-failed-file-data-jenkins-w.72798/ >> > >> > that points to this fix >> > github.com/.../f88aece242178ff0c187d56e34a79645fbc44a23 >> > < >> https://github.com/zephyrproject-rtos/newlib-cygwin/commit/f88aece242178ff0c187d56e34a79645fbc44a23 >> > >> > >> > Is there a way to have sprintf working with floating point numbers? >> > >> > Thanks >> > -- > Dave Nadler, USA East Coast voice (978) 263-0097, drn@nadler.com, Skype > Dave.Nadler1 > >