About Nickjmas

Nickjmas · 2023-06-12

Hello everyone,I'm developing a firmware for an STM32F767 and I have a problem that happens randomly and I can't figure out why. From what I could analyze looking at the stack I think the problem comes when doing a sprintf and I have the hypothesis t...

Nickjmas · 2022-09-08

Hi everyone,I've a strange problem when I write to an external flash memory (S29GL512T) throught a STM32F767 MCU and a custom external loader loaded in the STM32CubeProgrammer.After debugging the external loader several times, I've found that the con...

Nickjmas · 2019-11-14

I'm trying read/write files from Fat FS from usb pendrive throught my custom board using STM32F7 MCU and I have a initialitzation problem in some usb pendrive. I was testing with 2 diferent usb pendrive, one with 2Gb and the other 32Gb. The 2Gb pendr...

Nickjmas · 2019-06-04

I was design a custom board with a MCU STM32F767BI, a LCD with 800x600 pixels and a SDRAM with 64Mb. I'm getting a HardFaultHandler after run some time the aplication and it faults inside the process GUI_Exec() according to the PC register. Analizing...

Nickjmas · 2017-03-29

Posted on March 29, 2017 at 14:23Hellorecenty I bought an STM324x9I_EVAL and I would try to run the STemWin_SampleDemo in the external flash. My toolchain is MDK_ARM an I use Keil 5As I know, I need Add a Programming Algorithm for the external flas...

Nickjmas · 2023-06-13

I agree with you that the problem probably comes when doing a malloc when trying to printf a float value. @Community member link is very interesting, I think it's vitally important to apply the changes he mentions so that the system is consistent.I...

Nickjmas · 2023-06-13

Hi wacakwek.jan,thank you for you comments. The fault fall between Balloc and Bfree functions (see picture)I'm using FreeRTOS with #define configUSE_NEWLIB_REENTRANT 0 because I'm using C standar library (no newlib). Analyzing the Call Stack, what I ...

Nickjmas · 2023-06-13

Hi Bob S,thank you for you suggestions. I wasn't clear in my main question and I forget say that I was using snprintf to avoid overrunt the buffer. Also I add null termination at the end of this buffer.This is the snprintf where the fault is generate...

Nickjmas · 2023-06-12

Hi KnarfBthank you for your suggestions. About buffer used, it is static and has enought size to show the data (100 bytes).About the MPU configuration, you are in true, I have twice MPU_REGION_NUMBER1 and source is wrong. I will fix and I will try ag...

Nickjmas · 2022-09-13

Hi Tesla DeLoren, thank you for your suggestions. I've made a new project in application space with the source (partially) of the external loader. I've had to change some values of FMC configuration to work fine. This application check the initial co...

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Hardfault randomly when I do sprintf

Issue in buffer to write before programming external flash

USB pendrive is not initialized

Getting somtimes Hardfault in GuiExec()

STM324x9I_EVAL and external Flash

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Re: Hardfault randomly when I do sprintf

Re: Hardfault randomly when I do sprintf

Re: Issue in buffer to write before programming external flash