About sirpak

sirpak · 2024-03-12

Dear Sirs,I want to edit a string, but the system goes to hard fault (bus fault Imprecise error).Here below the code:typedef struct CC_PACKED{...const char *name;...} _objd;static const char acName2005_19[] = "Cycle 0 delta stop";const _objd SDO2005[...

sirpak · 2019-05-13

At the end of NVIC_SCBDeInit I see these instructions:[...]SCB->CFSR = 0xFFFFFFFF;SCB->HFSR = 0xFFFFFFFF;SCB->DFSR = 0xFFFFFFFF;The first one is a status register. Why writing it?For the second one the manual states:"This register is read, write to c...

sirpak · 2018-02-23

Posted on February 23, 2018 at 18:10Dear All,I use SPI as a master with 2 lines full duplex with DMA on STM32F303RE with 8-bit data size.Frames are made of variable number of Bytes. Normally SPI clocks out 3 Bytes of command on MOSI line + 4 Bytes o...

sirpak · 2017-09-14

Posted on September 14, 2017 at 17:16Good morning,which development board can I use for STM32F303RC?Thanks and regards,Marco S.#stm32f303rc

sirpak · 2017-09-11

Posted on September 11, 2017 at 17:39Dear All,I need to use TIM1 to generate 4 PWM signals, hence I want to use CH1, CH2, CH3, CH4.I also need to use USB for firmware upgrade.Since on PA11 there are both TIM1 CH4 and USB-DM, I don't know how to rema...

sirpak · 2024-03-14

Dear All,thank you for your help.I removed the malloc and I used an array of char with fixed size and all is working fine.I use 4 kB of heap and 4 kB of stack.Total SRAM memory is 64 kB.Maybe I have some problem with memory allocation and it does not...

sirpak · 2024-03-12

Still not working :thinking_face:..I removed the free() at the end of the function, and it seemed to work.It worked only once, the second time I test the code, it crashes. Maybe because the heap gets full?!

sirpak · 2024-03-12

u8 name_length = strlen(objd->name) + 1; // the result is 17{ s = (char*)malloc(name_length + 1); // s is 0x20003534 if(s != NULL) { p = (u8*)(objd->name); // p is 0x08020C74 // I tried all these four methods, but they do not w...

sirpak · 2024-03-12

I have it already:FLASH->ACR = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY_1; FLASH_ACR_LATENCY_1 is the second bit Bits 2:0 LATENCY[2:0]: LatencyThese bits represent the ratio of the HCLK period to the Flash access time.000: Zero wait state, if 0 < HCLK ≤ ...

sirpak · 2024-03-12

please do not consider nsub. the code is a little bit more complex. there is an array of struct and using nsub, i move inside the array.For simplicity, please do not consider it.I tried this and it didn't work:name_length = strlen(objd->name) + 1;mem...

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Bus fault Imprecise error

NVIC_SCBDeInit is in contraddiction with Cortex manual (??)

SPI RX buffer shifted

STM32F303RC

STM32F302xC PA11

Re: Bus fault Imprecise error

Re: Bus fault Imprecise error

Re: Bus fault Imprecise error

Re: Bus fault Imprecise error

Re: Bus fault Imprecise error