STM32F4 Nucleo - Keil 5 IDE with CubeMX: Tutorial 38 - Printf UART debugging

[@oscarhu2010]

Thank you very much!
It's complex in MCU world but you give me a easy way to fix my problem.

[@mutexembedded2206]

You're welcome Oscar

[@25RossT]

this is some big send energy with all of these videos. God bless

[@harshit1206]

Thanks @MYaqoobEmbedded , printf eased my life!

[@chim20air]

thank you very much!!!! it was driving me crazy not being able to use printf

[@mutexembedded2206]

Cool

[@astroman5510]

Great Explanation! Can we use fgets() and atoi() or atof() to enter an integer or floating point number from the keyboard to the MCU?
For example, something like this:
char mynum_printf[20];
int mynum = 0;
printf("Please enter an integer:
");
fgets(mynum_printf, sizeof(mynum_printf), stdin);
mynum = atoi(mynum_printf);
printf("Your number is: %d
", mynum);

[@christianchristian9596]

Thank you! It was more useful than other ones!

[@phoraramotale3414]

Your videos are very helpful

[@yerihiturriago9271]

Hey! Nice tutorial. But in my case, I can't print float numbers. I've my printf as "This is a float = %f", but the out is "This is a float = ", why happen this?
I've linker flags configured as you teach in your video and I have the functions. I'm using USB like COM port (CDC_Transmit_FS function).

[@ritulshah92]

Thank you Sir! This tutorial was very useful.

[@MclarenF1rocket]

Awesome - i got things printing on serial but after 35 cycles (no matter what HAL_Delay i put) , my code gets stuck in UART_WaitOnFlagUntilTimeout forever - any ideas on what could be causing t his? I'm using the STM32L476RG Nucleo board.

[@arrshithrg5359]

can either of the methods be used in stm32cube ide for printf ? or which method is suitable for stm32cubeide?

[@mutexembedded2206]

Pretty much same

[@arrshithrg5359]

@@mutexembedded2206 I tried it , works fine for int but not for float. I tried to search for linker flag in mcu gcc linker but not able to find linker flag in stm32cube iDE

[@mutexembedded2206]

@@arrshithrg5359 It is easy, just a checkbox, read this:
community.st.com/s/question/0D50X0000B0AEJb/uprintffloat-where-to-set-for-clinker-in-stm32cubeide

[@jesusAsari]

Hi! do you know to identify the pulses of IR control using STM32F4?

[@emre_iris]

Another informative video :) thanks so much

[@ChristianDAquino]

@MYaqoobEmbedded, I can't get it to work on the Atollic TrueStudio. Any tricks there?

[@mutexembedded2206]

Try to do it manually..
Open syscalls.c
Find _write function
Put your HAL_transmit() there.

[@harshit1206]

Hi Christian, I have observed (by chance), this entire thing only works if the string is terminated by

or
. Please try printing something like printf("Hello World!

); .

[@saurabhjha5401]

Is it necessary to use USB to serial converter , because I'm not getting data on my Serial terminal.

[@Engineer_Valat]

جزاك الله خيرا..

[@sakthiprakash3337]

Its nice tutorial Bro, Please give a tutorial for scanf for usart with dma.

[@isokemisoke]

Can u add How to use printf with DMA_Tx ? It will be great ! Thanks a lot by the way.

[@antojslinjijo4596]

thanks a lot it helps me a lot and u got a new subscriber

[@mutexembedded2206]

Enjoy :)

[@parivicky641]

Thank you so much for sharing.

[@punit_patel]

Loved your tutorials.
BTW Started Working on OTA in stm32 over LoRaWAN (multicast).

[@Graham1904]

Another great video

[@ramzibouzaienne4234]

Hello, please, I need the system workbench tools 46 bits for stm32. Please, send me the tools.

[@anonymoususer313]

Great video!!!

[@hero21number18]

i tried with stm32cubemax but it did not work my board is stm32f407vg, i did every thing same

[@yerihiturriago9271]

me too

[@brijeshkhokhar]

thanks, this is useful hack...!!

[@aboody7k]

Hey Yaqoob !
Thank you so much :)
it was very helpful.
could you pleas make vidoe about ( 4x4 Keypad I2C 8bit IO Expander with stm32f4 discoveryboard )?.
I need that actually for my final project

[@pusatberk4193]

thank you so much

[@romiolover6852]

great tutorial thank you a lot

[@amirparto]

Thanks a lot. It helps :)

[@naasikhendricks1501]

Ramadan Kareem.

[@mutexembedded2206]

Thanks :)
Ramadan Kareem

[@naasikhendricks1501]

Afwaan. I will try to be in contact shortly Insha'Allah. Great tutorial

[@ralekri]

nice

[@vivekanand_dhakane]

Thanks

[@amitchautmal]

Good tutorial. Sir, can u make tutorial on stm32 modus protocol as a slave and master. Thanks.

[@abutaymiyyahlectures]

i now know how i can do it, but i still dont know how it works

[@JAGANNATHSAHOOtheraw]

Thanks