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Home/microcontroller

Tag: microcontroller

An MCU is like a small computer consisting of a central processing unit (CPU), memory and multiple programmable Input Output peripherals such as UART, ADC, DAC, I/O, I2C, etc.

volt.tech Latest Questions

Julian White
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Julian White
Asked: April 24, 2023In: MEMS & Sensors

LSM6DSOX INT1/ INT2 both are Interrupt?

  • 0

Hello, I am setting up the two interrupts on the LSM6DSOX, INT1, and INT2 to indicate Single and Double Tap events, independently. I am suitable to make both events spark their separate interruptions but I would want them to be fully separate. I ...Read more

Hello,

I am setting up the two interrupts on the LSM6DSOX, INT1, and INT2 to indicate Single and Double Tap events, independently.

I am suitable to make both events spark their separate interruptions but I would want them to be fully separate.

I suppose I need to apply a delay on the Single Tap, to insure it does not operate under double tap condition- it presently works twice for a double tap!

Is there a way I can do this inside the LSM6DSO, or must I separate the interrupts in my microcontroller?

Thank You

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int1int2interruptlsm6dsolsm6dsoxmicrocontroller
  1. Alex thomas
    Added an answer on April 25, 2023 at 10:50 am

    Hi,@Julian White (Customer), Unfortunately, it isn't possible to do this inside LSM6DSOX, so I suggest you separate the interrupts in your microcontroller. If my reply answered your question please click on Select as Best at the bottom of this post, This will help other users with the same issue toRead more

    Hi,Julian White (Customer),

    Unfortunately, it isn’t possible to do this inside LSM6DSOX, so I suggest you separate the interrupts in your microcontroller.

    If my reply answered your question please click on Select as Best at the bottom of this post, This will help other users with the same issue to find the answer quickly. 🙂

    Thank You

    Alex Thomas

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Answer
Alex thomas
  • -1
Alex thomas
Asked: April 20, 2023In: Wireless Connectivity

ESP32 LoRa SX1276 5V VIN pin?

  • -1

Hey, I am creating a smash barrier controller with ESP32 SX1276 LoRa microcontroller, and I require a 5V external power force, but I can not find anywhere which pin of 5V is the VIN one, I do not want to ...Read more

Hey, I am creating a smash barrier controller with ESP32 SX1276 LoRa microcontroller, and I require a 5V external power force, but I can not find anywhere which pin of 5V is the VIN one, I do not want to ruin my module, so does anyone know this particular module and which of the 5V pins is the VIN one? I have uploaded the board setup for reference purposes. If you want any extra information please let me know.

Thank You

Alex Thomas

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esp32espressifloramicrocontrollermodulepinsx1276vin
  1. nidhi singh
    Added an answer on April 21, 2023 at 10:04 am
    This answer was edited.

    Hello, They are likely both connected to the Vin signal; check with a multimeter if there is continuance between the two pins if you want to make sure. Thank You Nidhi Singh

    Hello,

    They are likely both connected to the Vin signal; check with a multimeter if there is continuance between the two pins if you want to make sure.

    Thank You

    Nidhi Singh

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nidhi singh
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nidhi singh
Asked: April 13, 2023In: Microcontroller

Doubt on how to interface a 5V circuit to a 3V microcontroller (STM32)- Input Pins?

  • 0

Hello, The input 1 and input 2 signals will be boarded from an STM32 but the problem is the signal transferred from STM32 is 3.3 V but the input to the IC is 5V. How do I convert the same? Please ...Read more

Hello,

The input 1 and input 2 signals will be boarded from an STM32 but the problem is the signal transferred from STM32 is 3.3 V but the input to the IC is 5V. How do I convert the same? Please help.

Thank You

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circuitinterfacemicrocontrollerPinssignalsstm32
  1. ashishgawade
    Added an answer on April 14, 2023 at 9:58 am

    Well, that good olde L293D. This is a no-brainer because even a 3.3 V supplied GPIO affair generates 5V TTL compatible signal situations. See the datasheet of your chip. Application note AN4899" STM32 microcontroller GPIO hardware settings." is worth reading.

    Well, that good olde L293D.

    This is a no-brainer because even a 3.3 V supplied GPIO affair generates 5V TTL compatible signal situations.

    See the datasheet of your chip.

    Application note AN4899” STM32 microcontroller GPIO hardware settings.” is worth reading.

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nidhi singh
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nidhi singh
Asked: February 15, 2023In: Microcontroller

How RASC- Adding FPU for RA2E1?

  • 0

Hi everyone! I want to use float variables as I transfer data through UART. But I do not know where should I add FPU in CMake files. I do not apply to e2studio, just created the Cmake project from RASC. Could you help ...Read more

Hi everyone!

I want to use float variables as I transfer data through UART.

But I do not know where should I add FPU in CMake files. I do not apply to e2studio, just created the Cmake project from RASC.

Could you help me with how can i solve this situation?

Regards.

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fpumcumicrocontrollerRA2E1rascrenesas
  1. Alex thomas
    Added an answer on February 16, 2023 at 10:28 am

    Hi Nidhi, Thanks for posting your question online. In setup to perform floating point operations with library calls, you should add-mfloat-abi = soft. Please refer to-mfloat-abi = name on https//gcc.gnu.org/onlinedocs/gcc-4.4.7/gcc/ARM-Options.html In setup to apply functions printf and scanf functiRead more

    Hi Nidhi,

    Thanks for posting your question online.

    In setup to perform floating point operations with library calls, you should add-mfloat-abi = soft. Please refer to-mfloat-abi = name on https//gcc.gnu.org/onlinedocs/gcc-4.4.7/gcc/ARM-Options.html

    In setup to apply functions printf and scanf functions, you should add these 2 linker options

    Hope it helps

    Regards

    Alex Thomas

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Answer
vikas Nagpal
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vikas Nagpal
Asked: February 10, 2023In: Microcontroller

DFlash Wear leveling

  • 0

Hello, I’m trying to come up with a system to perform wear leveling in the Dflash EEPROM (AURIX TC265). After going through the user manual, example code, and a few other posts in this forum, the correct way of writing to Dflash ...Read more

Hello,

I’m trying to come up with a system to perform wear leveling in the Dflash EEPROM (AURIX TC265).

After going through the user manual, example code, and a few other posts in this forum, the correct way of writing to Dflash is (Please correct this if it’s wrong)

1. Erase entire sector( 8KB)

2. Enter Page mode with the page address

3. Load data to be written

4. Write page/ write burst.

Repeat steps 3 and 4 until the needed amount of data is written to DFlash.

The data that I want to write to Dflash isn’t further than 32 bytes in total. So, I was looking for a technique to spread out these 32 bytes written in the logical sector( 8192 bytes) itself every time I need to store a new dataset. Is this possible? Or am I limited to spreading out my writes across sectors and not on the page level, as erase command works only on the sector level and not on the page level?

Thanks

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dflashInfineonmicrocontroller
  1. nidhi singh
    Added an answer on February 13, 2023 at 11:15 am

    Hi Vikas. Yes, that is a common issue. You do not need to fill the whole sector at once; you can incrementally write pages until the industry is full. The tricky part is avoiding the erase disturb effect and dealing with the possibility of word line failures, as described in 10.8.3.1 Robust EEPROM ERead more

    Hi Vikas.

    Yes, that is a common issue. You do not need to fill the whole sector at once; you can incrementally write pages until the industry is full.

    The tricky part is avoiding the erase disturb effect and dealing with the possibility of word line failures, as described in 10.8.3.1 Robust EEPROM Emulation on page 1000 of tc26xB_um_v1.3.pdf. For example, it’s impossible to have one set of static manufacturing data written once in DF0, and one set of dynamic data; all data must be periodically rewritten to avoid erasing disturbs.

    Thank You

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vikas Nagpal
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vikas Nagpal
Asked: January 11, 2023In: Microcontroller

How RA2A1 24 Bit Single end input measure negative signal?

  • 0

Hello, I am thinking to use RA2A1 MCU to measure a very small AC (50Hz) signal, perhaps millivolt range or lower, but it’s sin wave that has negative amplitude, is RA2A1 MCU single-end input can handle negative signal? Thank You

Hello,

I am thinking to use RA2A1 MCU to measure a very small AC (50Hz) signal, perhaps millivolt range or lower, but it’s sin wave that has negative amplitude, is RA2A1 MCU single-end input can handle negative signal?

Thank You

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mcumicrocontrollerra mcura2a1renesasRenesas Microcontrollersignal
  1. Alex thomas
    Added an answer on January 18, 2023 at 11:50 am

    Hi, You can find the input voltage range in differential input mode in Table 33.7: Thank You

    Hi,

    You can find the input voltage range in differential input mode in Table 33.7:

    Thank You

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motobuys
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motobuys
Asked: December 29, 2022In: Microcontroller

How Activate Micro Inspector License?

  • 0

I’ve installed Micro Inspector Pro on my PC and it shows “ unregistered ”. May I’ve the license to activate my Micro Inspector Pro? Thank you.

I’ve installed Micro Inspector Pro on my PC and it shows “ unregistered ”. May I’ve the license to activate my Micro Inspector Pro? Thank you.

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InspectorLicensemcuMicromicrocontroller
  1. ashishgawade
    Added an answer on January 3, 2023 at 9:45 am

    Hello, We've uploaded your request and apply for a license. It may need some time. And the APP can work well although it shows" unrecorded", so you can use it first, and I'll reply to you when the license is OK. Thanks for your understanding. Regards,

    Hello,

    We’ve uploaded your request and apply for a license. It may need some time. And the APP can work well although it shows” unrecorded”, so you can use it first, and I’ll reply to you when the license is OK. Thanks for your understanding.

    Regards,

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Answer
Alex thomas
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Alex thomas
Asked: December 27, 2022In: Microcontroller

CAN interrupt not happening on RA4M1?

  • 0

Hii, It’s getting as far as setting NEWDATA in MCTL_RX (also sets MGSLOST, presumably when the coming message arrives). It also sets NDST in STR. An acknowledged pulse is transmitted on CTX. So, I presume the filters are set correctly. STR isn’t ...Read more

Hii, It’s getting as far as setting NEWDATA in MCTL_RX (also sets MGSLOST, presumably when the coming message arrives). It also sets NDST in STR.

An acknowledged pulse is transmitted on CTX. So, I presume the filters are set correctly.

STR isn’t in HALT or RESET. The relevant bit is set in MIER.

is set to 0x4D, but bit 16 (IR) remains clear. The interrupt handler routine is never invoked. ISER0 bit 0 is set.

Other interrupts are working (RTC). Is there some other global interrupt enabled within the CAN module that I’ve overlooked?

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CANmcumicrocontrollerra4m1renesas
  1. vikas Nagpal
    Added an answer on December 28, 2022 at 9:59 am

    Hi Alex, Thanks for reaching out to Volt Engineering Community. Have you checked the ORIE bit in Error Interrupt Enable Register( EIER)? Please let us know if it answers your question. Regards, Vikas

    Hi Alex,

    Thanks for reaching out to Volt Engineering Community.
    Have you checked the ORIE bit in Error Interrupt Enable Register( EIER)?


    Please let us know if it answers your question.

    Regards,

    Vikas

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vikas Nagpal
  • 0
vikas Nagpal
Asked: December 16, 2022In: Microcontroller

RA2L1 AES- 256 Encryption, Decryption Problem?

  • 0

Hi Sir, I found” R11AN0496EU0130“, and” R11AN0449EU0120“, but didn’t find any documentation on AES engine operation about RA2L1. PC TOOL” Security Key Management Tool” does not support RA2L1 I also watch fsp document, but it does not help me important with following app ...Read more

Hi Sir,

I found” R11AN0496EU0130“, and” R11AN0449EU0120“, but didn’t find any documentation on AES engine operation about RA2L1.

PC TOOL” Security Key Management Tool” does not support RA2L1

I also watch fsp document, but it does not help me important with following app confirmation.

FSP DOCUMENT : https//renesas.github.io/ fsp/ group,r_m,p_s_a,c_r_y_p_t_o. html

Application:

PC (AES 256- bit encryption)-> RA2L1 (AES 256- bit decryption)-> device

Please give me the RA2L1 PC tool or some AES document (RA2L1) for our exhibition, thanks.

Read less
mcumicrocontrollerr11an0449eu0120r11an0496eu0130ra2l1renesas
  1. Best Answer
    nidhi singh
    Added an answer on December 19, 2022 at 10:10 am

    Hi, The FSP documentation includes examples of using AES encryption and decryption. For a PC- based tool, I would suggest putting something together using Python. The Security Key Management Tool is used for installing/ wrapping keys and so isn't the device you need for the application you describe.Read more

    Hi,

    The FSP documentation includes examples of using AES encryption and decryption. For a PC- based tool, I would suggest putting something together using Python. The Security Key Management Tool is used for installing/ wrapping keys and so isn’t the device you need for the application you describe.

    Thank You

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vikas Nagpal
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vikas Nagpal
Asked: December 5, 2022In: Microcontroller

GPIO Edge Detection When ISR is Raised?

  • 0

Hi, Configured IRQ Control Register (IRQCRi) rising and falling edge discovery (IRQMD{10}). When the interrupt of the edge discovery is raised, where to find out which edge falling or rising is detected, I need to know what’s the pin position of ...Read more

Hi,

Configured IRQ Control Register (IRQCRi) rising and falling edge discovery (IRQMD{10}).
When the interrupt of the edge discovery is raised, where to find out which edge falling or rising is detected, I need to know what’s the pin position of the GPIO input pin when an edge is detected.

The used CPU is RA2E1.

Read less
cpugpioirqcriirqmdisrmcumicrocontrollerRA2E1renesas
  1. Alex thomas
    Added an answer on December 7, 2022 at 10:33 am
    This answer was edited.

    Thanks for posting your question! You could check your IRQ- pin's level when entering your interrupt message function in order to check if a rising or falling edge is detected. In case your pin's level was initially low and when entering your message function it became high then a rising edge was deRead more

    Thanks for posting your question!

    You could check your IRQ- pin’s level when entering your interrupt message function in order to check if a rising or falling edge is detected. In case your pin’s level was initially low and when entering your message function it became high then a rising edge was detected. If your pin was initially high and also became low then a falling edge was detected. You could read your pin level by accessing the register shown in the picture below.

    For example, if your IRQ pin is P110, you could check its level in the interrupt message function like this:
    R_PORT1->PIDR_b. PIDR10 and check if it’s 1 (HIGH) or 0 (LOW).

    Another way is by using the already given API
    1.fsp_err_tR_IOPORT_PinRead(ioport_ctrl_t * constp_ctrl,bsp_io_port_pin_t pin,bsp_io_level_t *p_pin_value);

    Kind Regards,
    Alex

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