About maurosmartins

maurosmartins · 2024-02-16

Hello all, I've recently received a dev board for STM32G030F6 microcontroller and I wanted to make a simple USART test before continuing. I've started the project using STM32 CUBE MX initializing serial port and clock, also, I've retargeted printf as...

maurosmartins · 2023-06-26

Dear all, I'm just getting started using a BlueNRG-M2 module and a host STM32.Browsing through the documentation I've seen that chapter 3.2 of bluenrg-m2 datasheet mentions "Host-less mode (application processor): customer application runs on the Blu...

maurosmartins · 2017-09-26

Posted on September 26, 2017 at 23:49Hello all!I'm using stvd and Cosmic (free) C compiler and I'm having issues with a simple statement. I'm using sprintf to conver two uint8_t to string but it always do it wrong. uint8_t u8Hours = 22, u8Minutes = ...

maurosmartins · 2017-02-20

Posted on February 20, 2017 at 22:39Hello all,I'm trying to configure USART on a STM32F101RB micrcontroller with Atollic True Studio.the uC clock is configured as external clock (8Mhz) divided by 2 and pll'ed by 9 to a total 36Mhz.I'm using the HAL ...

maurosmartins · 2016-07-26

Posted on July 26, 2016 at 21:09Hello all, I've recently acquired an STM32 Nucleo-F103RB evalutation board. I've used STM32 cube to generate a sample program for both free versions of atollic true studio and IAR for ARM. When trying to program/Debug...

maurosmartins · 2024-02-16

Hi again, @Andrew Neil wrote:Have you tried a breakpoint in __io_putchar() ?When using \n the program stops at the "__io_putchar" breakpoint for every char. When using \r, the program behaves as described previously, no stop at the breakpoint for som...

maurosmartins · 2024-02-16

Hello again, just checked with the scope. When using just the "\r" there is no data output, as mentioned before, after sometime a burst of data is sent also seen in the Serial2USB converter. I suspect that using the \n forces data to be sent immedia...

maurosmartins · 2024-02-16

Hello Andrew, thank you for your prompt reply.Indeed it made difference, using the "\r\n" or only "\n" worked properly!Does this behavior relate to the printf function? I've been using only "\r" for a long time on the "PIC" microcontroller project th...

maurosmartins · 2017-09-26

Posted on September 27, 2017 at 01:37Hello Clive One, thank you very much for the quick answer,I've tested with the type casts and it worked, thank you so much.unfortunately I don't understand why, is there a short way to explain why it requires the...

maurosmartins · 2017-02-20

Posted on February 20, 2017 at 23:22Hello Clive One, thank you for your reply, I haven't check the registers with the debugger, I assumed they were filled correctly after my initialization.The clock is enabled for PORTA, AFIO, USART2 must I enable t...

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STM32G030 USART and HAL_Delay strange behavior

BlueNRG-M2 Host-less mode

Cosmic STM8 sprintf

USART2 Init STM32F101

Sw or Damaged Board?

Re: STM32G030 USART and HAL_Delay strange behavior

Re: STM32G030 USART and HAL_Delay strange behavior

Re: STM32G030 USART and HAL_Delay strange behavior

Re: Cosmic STM8 sprintf

Re: USART2 Init STM32F101