All Questions
9
questions
1
vote
1
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2k
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What are the output logic levels of this STM32?
I am struggling getting my head around the input and output logic levels, mostly the output levels of this STM32 (STM32F446xC/E).
This table shows the output logic levels as dependent on if it is a ...
- 161
1
vote
1
answer
4k
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Can I use a ST-LINK V2 as a universal JTAG or TTL serial interface?
I have a ST Link V2 as pictured below. I would like to use it as a general purpose JTAG and or Serial TTL USB interface for communicating with a wide variety of devices. The documentation claims it ...
- 2,397
-1
votes
2
answers
240
views
How to connect STM32F103C8t6 to computer when using USART? [closed]
I'm an electrical engineering student and I've just started to learn microcontrollers.I want to know is there any way to connect my board(I uploaded its picture)to computer when I'm using USART ...
0
votes
1
answer
1k
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Why cannot I use the USB port directly to communicate via PC with STM32F4-DISC
I will keep it short and clean, if it won't be enough please let me know and add more details.
When using an Arduino UNO, a serial communication can be achieved by the same USB connection which is ...
- 2,106
0
votes
1
answer
2k
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STM32F407 CMOS or TTL or HC
I wonder which logic technology is STM32F407 MCU based on.. CMOS or TTL or HC or LVT etc? Although its mentioned in the datasheet that the GPIO's are CMOS and TTL compliant. I am concerned about this ...
- 907
1
vote
3
answers
2k
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Interfacing GPIO 3.3V to 74HC04 5V
Will it be safe if I connect STM32F407 GPIO outputs (Vdd=3.3V) to 74HC04 hex Inverter inputs (Vdd=5V)? What is the best recommended method to add an inverter at the output of STM32F407 MCU?
edit:
...
- 907
2
votes
0
answers
624
views
L298 distorts signal
I connected STM32 F334R8 microcontroller to L298 H-bridge. I made some measurements. The problem is output signal on L298 has quite slow slopes and is not as sharp as input signal. I do not understand ...
- 136
3
votes
2
answers
11k
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Should I connect unused STM32 pins to ground?
I'm designing some circuit using STM32L152RBT6 microcontroller. I'm using STM32L-DISCOVERY scheme as a reference of good STM32 practices. I've noticed that free pins of programmer's MCU aren't ...
- 133
9
votes
4
answers
19k
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Is it possible to program an STM32 with an Arduino?
I have one of these:
http://www.ebay.com/itm/111297094334?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I know an USB-TLL dongle is usually used to program it, but I don't have one and I ...
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