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Recent content by doraemon

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    [General] step-by-step method for C2000 Ti microcontroller?

    Hello! Ti has usually evaluation boards and sample source code. Did you try on TI's website? There are many application notes, I'm sure they have what you want. Dora.
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    Confused in Choosing MCU having higher sampling rate!!

    Hello! But we don't know if the sensor is analog or digital. If it's analog, yes, it's fast with the ADC and DMA, then you get an interrupt every half buffer which allows some continuity. If it's digital and with a significantly long frame, for instance in SPI, then it takes time. Example: 10...
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    [PIC] PIC16F1789 and ST95020 communication

    Hello! I will try to show you a bit more specifically what is missing in your code. - It's completely fuzzy, everything is mixed, you don't explain what is what. Example: do you expect everybody to know what T6963 is? NB: I have checked, and it's a LCD dot matrix. Why do I have to check the...
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    Logic or sample code to detect the zero crossing Also how detect the positive or negative cycles

    Hello! It looks good (essentially), although I haven't run it to verify if it works. But why do you use 2 definitions, POSITIVE and POSITIVE_HALF_CYCLE. It looks more or less the same thing. And the 2 variables you use change exactly under the same conditions, which makes me think that...
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    Logic or sample code to detect the zero crossing Also how detect the positive or negative cycles

    Hello! Sorry to have to repeat, but NO, IT DOES NOT INDICATE A 0 CROSSING!!! The only thing it indicates is that your signal is within the range 1450 - 1500. Suppose your 0 is at 1475 and you keep a + / - 25 for noise fluctuations. Suppose that your signal is slow, going 1500, 1498, 1496...
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    Logic or sample code to detect the zero crossing Also how detect the positive or negative cycles

    Hello! This will not detect a zero crossing. It will only detect if the value is in a given area. The simple case: the last sample was less or equal to a value and the current sample is more, then you have crossed that value. BUT: if you have noise it might cross a few times. So you have to...
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    Stm32 and NRF24L01

    Hello! It would also be nice to have an accurate description of what you want to doe. So you have some kind of transceiver NRF401 and STM32. Does it mean a chain like this: (the _S and _R mean send and receive) [KEYPAD] - [STM32_S] - [NRF401_S] ---------- RADIO WAVES --------- [NRF401_R] -...
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    [ARM] First question in this forum of mine:stm32f103C8T6 - Controlling a stepper motor via DM422C (Digital Stepping Drive)

    Hello! Here again. We don't know whom you are replying to. We don't even know what was (1) and (2) because there were no numbers in Klaus' mail and in mine either. The 3rd indicates it might be a reply to me, so you may explain why you are laughing. The oscilloscope is the 1st equipment you...
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    [ARM] First question in this forum of mine:stm32f103C8T6 - Controlling a stepper motor via DM422C (Digital Stepping Drive)

    Hello! You know, it's a real pain to have to pit every sentence you write. Again, Ok, you want to open something. Maybe put GPIOC to output mode? Now that's fine. But: - What are you expecting to observe by writing the code? - What do you actually observe? I know that setting a GPIO to...
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    [ARM] First question in this forum of mine:stm32f103C8T6 - Controlling a stepper motor via DM422C (Digital Stepping Drive)

    Hello! Check and do what? And first, what's the problem? If I check this: -> ORR R1,GPIOCEN What is it supposed to do, and what does it NOT do? I will suppose that "official" here means documentation published by the chip maker. Official documentation is usually not meant to teach you how...
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    Duty cyle register updating in accordance with the adc feedback Voltage

    Hello! The drawing you give us doesn't correspond to your questions. Why not giving us the picture of your cat or dog? Your questions are related to PWM, ADC, etc, which hints to a microcontroller-based system of some kind. Here you show us a simple amp. Where is the PWM unit? Where is the ADC...
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    Duty cyle register updating in accordance with the adc feedback Voltage

    Hello! For this very reason I would agree with Klaus. If you don't feel confident about your english, why not make a drawing, a block diagram of your system? There is no "best way" to update a PWM. There is just a way to do it, which is processor-dependent. You don't explain the background, I...
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    SPI with 16 bit registers and not 8 bit.

    Hello! Just thinking you might have long questions in the future scares me. Be careful with what you see on a random video on the net, be it technical, news or whatever else. What was the context? "Usually"? How frequently? I would say that usually if you design silicium, you don't setup...
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    Build succesfull in MPLABX but its displaying the Character in GLCD

    Hello! No hurt intended, but.... you have been on this for more than 2 weeks, and there is not much happening in your source code. And your LCD might be incompletely initialized. From what I found by searching for some source code for AMPIRE12864, your initilaization is not complete. That said...
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    How to convert 3 byte information to 2 byte

    Hello! You can certainly find a way to convert a 3 byte ID into 2 bytes. But you have to loose something. Now what you are saying is not clear. In your example {B2, B1, B0}. If B2 is not 0 you don't do the conversion. Fine. Now what can you do with these IDs? Nothing. For instance, if you want...
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