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The STM32 is the third ARM family by STMicroelectronics. It follows their earlier STR9 family based on the ARM9E core, and STR7 family based on the ARM7TDMI core. The STM32 is based on the ARM Cortex-M family of cores.

3
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\ TIM8_ETR. From the reference manual, I know that TIM2_CH1_ETR and USART2_CTS can be remapped. What about other functions? What if I want to use TIM5_CH1 and TIM8_ETR at the same time? How can the STM32 know whether I want to consider PA0 as TIM5_CH1 or TIM8_ETR? 1: datasheet, reference manual …
asked May 2 '13 by oilpig
1
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0answers
guys. I am using J-link with SWD interface to debug my STM32F103VCT6 in IAR. I can enter download and debug mode but I can not use "step over" or "stop" function. Once I use one of them I will get com …
asked May 3 '13 by oilpig
1
vote
1answer
On page 207 of stm32 reference manual, it says that VSSA(power supply of ADC, negative) must be tied to VREF-(analog reference, negative). But when I refer to reference design of STM32(Evaluation …
asked Jul 1 '13 by oilpig
-4
votes
3answers
I have defined a global array in main.c: __IO uint8_t data[3]={0,0,0}; then, I extern and assign vlues to this array in another c file: extern __IO uint8_t *data; INTERRUPT_HANDLER(EXTI_PORTB_IRQH …
asked May 14 '13 by oilpig
2
votes
1answer
I am using FSMC(Flexible static memory controller) function of STM32:reference manual.On page 494 of referencec manual, the data bus should be bidirectional. It is reasonable but i have no idea how … to realise it in STM32 because it has only two modes: input and output mode(on page 166). After refering to examples from ST, i know that the data port should be considered as ouput push-pull mode as …
asked Jun 11 '13 by oilpig
1
vote
1answer
by the source of LM317 and LM337. so my circuit of MAX7634A is shown below: I connect 'SUPERVISOR_RESET' to RST pin of STM32 and 'SUPERVISOR_WDO' 'SUPERVISOR_WDI' to IO of STM32. I jusr wonder … whether this design is realy meaningful since STM32 has its own watchdog and brown-out check. Suppose that there is somthing wrong with VCC_-3V3, MAX7634A can only reset STM32! It is realy ridiculous. And …
asked Jun 2 '13 by oilpig
0
votes
1answer
I want to get values of a global array in a c file. the print screen of code is shown below: 'data' is the global array and 'slave_buffer_rx' is another global array defined in this file to get valu …
asked May 12 '13 by oilpig
1
vote
1answer
I used DMA to transfer I2C data, but I always lose the last data. hardware configuration is shown below: DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)I2C1_DR_Address; DMA_InitStructure.DM …
asked Jan 10 '14 by oilpig
2
votes
1answer
I am using a voltage supervisor from MAXIAM (MAX6734A).I am confused about design notes in page 11. so,what is logic contention? the uP that I want to monitor is STM32F103ZET6.I read its datasheet:ST …
asked May 28 '13 by oilpig