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Home/jtag

volt.tech Latest Questions

Alex thomas
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Alex thomas
Asked: March 29, 2023In: Wireless Connectivity

ESP32- S3 uploading firmware via internal serial/ JTAG without EN and Boot controllers?

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Hello, I am designing a PCB that’s using the built-in serial/JTAG controller and OTG peripheral of the ESP32-S3. It can not hold a physical boot or reset buttons. It has a USB-C container with the D/D- lines connected to GPIO20 and ...Read more

Hello,

I am designing a PCB that’s using the built-in serial/JTAG controller and OTG peripheral of the ESP32-S3. It can not hold a physical boot or reset buttons. It has a USB-C container with the D/D- lines connected to GPIO20 and GPIO19, respectively.

Are there any ways of going without buttons for reset or is an external USB to UART IC needed?

For boot mode choosing I exactly hold a jumper that when shorted pulls GPIO0 to GND, is there a better way to do that without a button?

Any help is appreciated.

Thank You

Read less
bootcontrollersesp32firmwaregpio19GPIO20internaljtagpcbserial
  1. ashishgawade
    Added an answer on March 30, 2023 at 11:00 am

    Hello, The USB-serial-JTAG port can usually reset/put the chip into boot mode without any external components. It's still advised to have some way to pull IO0 low for initial programming and during development, if you make a mistake where e.g. your program disables the USB function. A jumper will peRead more

    Hello,

    The USB-serial-JTAG port can usually reset/put the chip into boot mode without any external components. It’s still advised to have some way to pull IO0 low for initial programming and during development, if you make a mistake where e.g. your program disables the USB function. A jumper will perform that function just fine.

    Thank You

    Ashish

     

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  • 1 Answer
Answer
nidhi singh
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nidhi singh
Asked: December 19, 2022In: Wireless Connectivity

ESP32- C3 Mini Devkit Configure for Built in USB JTAG?

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Hello and thanks in advance for the help. I recently entered my ESP32- C3 mini development kit. I’m sure it’s configured to use the CP2102 USB interface, so R1 and R4 are installed. I want to use the internal USB JTAG ...Read more

Hello and thanks in advance for the help.

I recently entered my ESP32- C3 mini development kit. I’m sure it’s configured to use the CP2102 USB interface, so R1 and R4 are installed. I want to use the internal USB JTAG interface which I understand requires the removal of R1 and R4 and the installation of R2 and R3( though I’m not sure this is the case). This would also free up RXD and TXD, which I need to use.

I haven’t been suitable to find documentation on how to use the Devkits with the USB JTAG, nor have I been suitable to determine the position of R1, R2, R3, and R4. I’ve tried” beeping out” the circuit but would prefer not to ruin my board.

Is there any guidance as to where those components are and/ or how to use a USB JTAG?

Read less
c3minidevkitesp32jtagusb
  1. Alex thomas
    Added an answer on December 20, 2022 at 11:49 am

    The PCB layout of that dev board can be found then. As far as I can see, you need to rotate those resistors 90 degrees to move them from the red to the green position in this image: You probably also want to disconnect the RxD/TxD pins from the CP2104 to the ESP32C3 if you want to use those pins. YoRead more

    The PCB layout of that dev board can be found then. As far as I can see, you need to rotate those resistors 90 degrees to move them from the red to the green position in this image:

    You probably also want to disconnect the RxD/TxD pins from the CP2104 to the ESP32C3 if you want to use those pins. You can do that by removing R21/R22, I marked those in blue.

    The built-in USB thing should more or less work as an extra UART inside the ESP32C3 and as a general CDC- ACM serial port(=no drivers needed) on the PC side. You do need to use the latest master of ESP-IDF to get full support for it, and if you specifically want to select the device as your press output UART in menuconfig, else, your debug messages will go to UART0.

    On the JTAG side, just useesp_usb_jtag. cfg as your JTAG adapter, config file in OpenOCD and you should be good.
    Still, feel free to post it here, If you need any further help. Support for the built-in USB-to-JTAG thing on the C3 is enough new, so I’d be interested in seeing how you fare with it.

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vikas Nagpal
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vikas Nagpal
Asked: September 10, 2022In: Power Management

Lyra-T and JTAG Debugging

  • 0

Maybe here in the ADF forum are some Lyra- T users. I’ve a Lyra- T( using WROVER- B) and I’m trying to get JTAG debugging working on Windows. I’ve tried both VSCODE ane decline. Both detect the chip via JTAG, but ...Read more

Maybe here in the ADF forum are some Lyra- T users.

I’ve a Lyra- T( using WROVER- B) and I’m trying to get JTAG debugging working on Windows. I’ve tried both VSCODE ane decline. Both detect the chip via JTAG, but I do not get any step further.
Anyone here having more success, or even can confirm it must be possible with the Lyra- T?

Read less
esp32espressifjtaglyra-t
  1. nidhi singh
    Added an answer on September 15, 2022 at 12:42 pm

    The JTAG debugging issues I was having when using VSCode, ESP-IDF Extension, and ESP-PROG *may* have been caused by the ESP-OpenOCD v0.11.0-esp32-20220411. When I replaced it with ESP-OpenOCD v0.11.0-esp32-20220706, I was able to flash via JTAG and Start/Stop debug session without seeing any errors.

    The JTAG debugging issues I was having when using VSCode, ESP-IDF Extension, and ESP-PROG *may* have been caused by the ESP-OpenOCD v0.11.0-esp32-20220411. When I replaced it with ESP-OpenOCD v0.11.0-esp32-20220706, I was able to flash via JTAG and Start/Stop debug session without seeing any errors.
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Answer
Anonymous
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Anonymous
Asked: August 11, 2022In: Wireless Connectivity

ESP32-Wrover support Jtag

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Does ESP32-Wrover Support jtag

Does ESP32-Wrover Support jtag

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esp32jtagwrover
  1. nakhtar
    Added an answer on August 11, 2022 at 9:48 am

    Yes, ESP32-Wrover support Jtag and EPROG can be used.

    Yes, ESP32-Wrover support Jtag and EPROG can be used.

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Answer
dev krishnan
  • 0
dev krishnan
Asked: June 13, 2022In: Microcontroller

Renesas R7FA6E10F2CFP programming issues

  • 0

While using Renesas R7FA6E10F2CFP with an E2/E2-lite programmer and JTAG programming interface. I am programming through E2 studio. As it stands I can not establish communication with the MCU. Every time I try to program the device I get the ...Read more

While using Renesas R7FA6E10F2CFP with an E2/E2-lite programmer and JTAG programming interface. I am programming through E2 studio. As it stands I can not establish communication with the MCU. Every time I try to program the device I get the following errors:
Error 0x0003080A: The specified emulator has already been used.

Error 0x0003080E: External power is supplied to the user system.

I have verified connectivity from the MCU and the programming connector pins.

Read less
connector pinse2 programmere2 studiojtagmcurenesas r7fa6e10f2cfp
  1. pallavi sharma
    Added an answer on July 13, 2022 at 4:51 pm

    Are you using a Renesas reference design, or is this custom hardware?  Have you checked your connection with the document E2 Emulator, E2 Emulator Lite Additional Document for User's Manual (Notes on Connection of RA Devices)? Which tool are you using - E2 or E2-lite?  This matters, because the E2 sRead more

    Are you using a Renesas reference design, or is this custom hardware?  Have you checked your connection with the document E2 Emulator, E2 Emulator Lite Additional Document for User’s Manual (Notes on Connection of RA Devices)?

    Which tool are you using – E2 or E2-lite?  This matters, because the E2 supports both JTAG & SWD while E2-Lite only supports SWD.  From On-chip Debuggers Performance Property:

       

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  • ashishgawade
    ashishgawade added an answer Hello, The USB-serial-JTAG port can usually reset/put the chip into… March 30, 2023 at 11:00 am
  • ashishgawade
    ashishgawade added an answer Hi Nidhi, Thanks for reaching out to Volt.Tech Engineering Community.… March 28, 2023 at 10:13 am
  • ashishgawade
    ashishgawade added an answer Hello@vikas, It's always recommended to use a bleeder of 100 ohms. Vout of the part has an offset… March 24, 2023 at 9:55 am
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    vikas Nagpal added an answer Hello, The SMPS reduces the power loss when VDD is… March 22, 2023 at 10:30 am
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    nidhi singh added an answer Hello Ashish, No, sorry, that kind of setup is physically… March 20, 2023 at 10:45 am

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