About roseanne qiu

roseanne qiu · 2019-07-10

Dear Sir/Madam:I try to use write and erase a sector with interrupt enable.writing interrupt work , but erase interrupt does not work and cause the system reset after hunging for a whilethe reason I use interrupt, is to avoid the erase holding system...

roseanne qiu · 2018-07-31

Dear Sir/Madam:I use three uart of stm32f4 : uart1, uart2 and uart6I have some problems . when uart1 has overrun error,all system get stuck there. I read some websites about this.they mention that in the hal lib, clear ORE does not work, they said, o...

roseanne qiu · 2018-07-30

Dear Sir/Madam:I have a problem and would need your help. when I write a watchdog like the following:void init(){.. SystemClock_Config(); /*######## Configure watchdog timer ############################*/ // Watchdog clock is LSI, runs at 32kHz. The ...

roseanne qiu · 2018-06-19

Posted on June 19, 2018 at 16:39 Dear Sir/Madam: I am using STM32F4x nucleo HAL lib, and try to set timer interrupt. It does not work. Here are the settings for timer interrupt: ..... // Timer is configured to be triggered every .05 secs. ...

roseanne qiu · 2018-05-24

Posted on May 24, 2018 at 22:20Dear Sir/Madam:I am using nucleo -f401RE with STM32 . I found the program keeps reset even with almost empty main loopthere is no way to do seftreset from the codes. only settings for hardware are system clock and some...

roseanne qiu · 2019-07-10

Dear Sir/Madam:I read through nucleo Hal source codes, my setting for erase is the same as theirs. I do not know why it does not work. any tests and tries should I use?thanksrsoe

roseanne qiu · 2019-07-10

Dear Sir/Madam:I read through the doc : for erase:check busy bit from FLASH_SRSET ser bit and snb bitset strt bit wait for bsy bit to be cleared.I follow the exactly steps. in interrupt mode, i just wait for interrupt oper done(set two bits:.EOPIE an...

roseanne qiu · 2019-07-10

Dear Clive:I found I lost my reply to you .erasing sector 11 also does not work: system reset.I check the "erased " sector part, the sector data is not erased. no matter enabling flash interrupt or not, erase does not work.I also check all the erased...

roseanne qiu · 2019-07-10

Dear Clive:more.only one task control to access the flash. This design is to protect flash reading and write at the same time.I guess that erase setting registers may be wrong?thanksrosean

roseanne qiu · 2019-07-10

Dear Clive:thanks for your answer. about writing error, I find , yes, you are correct,flash write interrupt work and no error bit it should be set for PG and then write.to erase, I just want to set start erase, and then switch to other tasks until t...

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erasing a sector with/without flash interrupt cause the system hung.

when uart over run happens by using stm32 hal lib, the system hang

how to find the reason when watchdog reset happens

stm32 HAL timer interrupt settings do not work on nucleo stmF4x

reset on nucleo -f401RE with even very simple main loop

Re: erasing a sector with/without flash interrupt cause the system hung.

Re: erasing a sector with/without flash interrupt cause the system hung.

Re: erasing a sector with/without flash interrupt cause the system hung.

Re: erasing a sector with/without flash interrupt cause the system hung.

Re: erasing a sector with/without flash interrupt cause the system hung.