What's your question?

volt.tech Latest Questions

ashishgawade
  • 0
ashishgawade
Asked: September 19, 2022In:
  • 0

We’re using the L6920 to drive a 1-watt LED. We’re trying to apply the under voltage cut-off ( lockout) too. We chose the values of the voltage ground connected to the LBI pin similar that the value that comes to say ...Read more

circuitdriveICl6920ledsoptoelectronics
  1. Alex thomas

    Hi Ashish, However, you would notice that LBI input is connected to LBO output and that's the only purpose of this input, If you look into the block diagram of L6920 in its datasheet. LBI input doesn't shut down the output! Still, you need to use LBO output to shut down accordingly, If you require tRead more

    Hi Ashish,

    However, you would notice that LBI input is connected to LBO output and that’s the only purpose of this input, If you look into the block diagram of L6920 in its datasheet. LBI input doesn’t shut down the output!
    Still, you need to use LBO output to shut down accordingly, If you require to shut down the output.

    See less
    • 0
nidhi singh
  • 0
nidhi singh
Asked: September 16, 2022In:
  • 0

I defined a design with secure zone and non secure zone for RA6M5. I active ethernet driver in non secure zone with DHCP enable. Whent theR_ETHER_Write is called andp_reg_edmac-> EDTRR = ETHER_EDMAC_EDTRR_TRANSMIT_REQUEST; edmac started a malformed packet is send see ...Read more

ethernetra6m5renesasRenesas Microcontroller
  1. vikas Nagpal

    How's this issue now? Were you suitable to fix it already? If not yet, maybe you'd like to share your design then so that the members in this forum can see what is causing the issue. Also, there is a question in Wireshark about Malformed Packet BOOTP/ DHCP too, and the issue disappeared when he updaRead more

    How’s this issue now? Were you suitable to fix it already? If not yet, maybe you’d like to share your design then so that the members in this forum can see what is causing the issue. Also, there is a question in Wireshark about Malformed Packet BOOTP/ DHCP too, and the issue disappeared when he updated to a newer version of Wireshark. It might help.

    See less
    • 0
vikas Nagpal
  • 0
vikas Nagpal
Asked: September 15, 2022In:
  • 0

Looking at the ESP32- S3 datasheet section 3.5.2 Serial supplemental Interface( SPI), in the SPI2 General­purpose SPI( GP­SPI) mode part it’s mentioned that SPI2 can do DDR at 40Mhz while in half duplex mode. In the design i’ve a SPI slave chip that does DDR on the MISO line, as in MISO line needs to be sampled at both edges of the SCLK line. It’s not ...Read more

ddrESP-IDFesp32esp32-s3spi2
  1. nidhi singh

    It does have a DDR feature, but I do not think this point is in the driver yet. Can you share what chip you are trying to communicate with? I can tell the driver team what to focus on if I file an issue to apply this.

    It does have a DDR feature, but I do not think this point is in the driver yet. Can you share what chip you are trying to communicate with? I can tell the driver team what to focus on if I file an issue to apply this.

    See less
    • 0
Alex thomas
  • 0
Alex thomas
Asked: September 14, 2022In:
  • 0

Which wireless remote controls are FCC pre-certified?

controlsfccremotewireless
  1. ashishgawade

    The keyfob transmitters and the handheld transmitters all have FCC and Industry Canada transmitter certifications. The 433 MHz versions have also been tested and found to conform to the ETSI RED directive.

    The keyfob transmitters and the handheld transmitters all have FCC and Industry Canada transmitter certifications. The 433 MHz versions have also been tested and found to conform to the ETSI RED directive.

    See less
    • 0
nidhi singh
  • 0
nidhi singh
Asked: September 14, 2022In:
  • 0

Hello, I’m using RA2L1 and E2 Studio. I want to use UART without interrupt. How can i read and transmit datas?

e2 studiointerruptra2l1renesasuart
  1. ashishgawade

    It's possible, but you won't be suitable to use the Read and Write API as handed. You'll have to produce your own which will poll the flags of the SCI SSR( Serial Communications Interface Serial Status Register) You would have to pend on the RDRF for data reception, and TDRE( & potentially TEND)Read more

    It’s possible, but you won’t be suitable to use the Read and Write API as handed. You’ll have to produce your own which will poll the flags of the SCI SSR( Serial Communications Interface Serial Status Register)

    You would have to pend on the RDRF for data reception, and TDRE( & potentially TEND) for data transmission.

    See less
    • 0