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ASeyo · 2020-03-10

I'm using stm32f103ze to send some data over the serial peripheral, but it didn't work. The settings are correctly set but when I try to write to the data register it always remains zero. Furthermore, none of the Serial peripherals seem to work. Wh...

ASeyo · 2020-02-08

__set_PRIMASK(1); // No error __set_BASEPRI(3 << 4); // Implicit declarationThis is a snippet of my code from keil uvision5. But, the IDE results in a syntax error; implicit declaration of function ' __set_BASEPRI ' is inval...

ASeyo · 2019-08-24

Hi I'm trying to configure stm32f103 as a master to write data to slave EEPROM chip. The master generates a start condition but slave doesn't acknowledge the address ( the address is mentioned in the datasheet though )#include "stm32f10x.h" ...

ASeyo · 2019-08-22

I'm working on stm32f103 I2C peripheral. I've one stm32f103 master and another stm32f103 slave. The master should send some text to the slave, but start condition never generates. The BUSY flag is set as soon as the peripheral is enable and the progr...

ASeyo · 2019-08-06

I'm trying to send message to sim900A via the serial port. The AT commands work but the GSM replies with some unwanted text (Previously sent text ) then finally OK. The GSM is supposed to reply what I typed with some prompts and finally OK. The pict...

ASeyo · 2020-03-10

I have checked the clock settings and everything is as I expected. The BRR, CR1 settings are set correctly. Even the TXE flag is cleared when I write to the DR(TDR) although no data is written in effect. I used a logic analyzer in USART1 TX (PA9) pin...

ASeyo · 2020-02-08

They are built in CMSIS functions and I have already included CMSIS Core. __set_PRIMASK works fine but __set_BASEPRI doesn't.

ASeyo · 2019-08-14

I got it working. The reason is DMA CNDTR can only be written when thechannel is disabled. If you try writing when enabled it basically treats it as a zero, So no transfer occurs.

ASeyo · 2019-08-03

Thanks buddy. I appreciate your help. I think everything is setup correctly. But I don't know what the problem is:sad_but_relieved_face:

ASeyo · 2019-08-02

Yes, not exactly the same code though.

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USART transmitter failure

__set_BASEPRI -- implicit declaration

ADDR bit is not set in I2C

I2C start condition not generates ( SB flag is never set )

SIM900A GSM module with stm32f1

Re: USART transmitter failure

Re: __set_BASEPRI -- implicit declaration

Re: stm32 uart Tx dma transmission doesn't work

Re: stm32 uart Tx dma transmission doesn't work

Re: stm32 uart Tx dma transmission doesn't work