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Is switching in MCUBoot is Atomic?
Hi Alex, The exchange mode for MCU boot uses the scratch area as an intermediate area in order to complete the exchange of the 2 images. The process of switching is done like below. However, then no information is lost, If a power failure occurs. The scratch area must be large enough to store the laRead more
Hi Alex,
The exchange mode for MCU boot uses the scratch area as an intermediate area in order to complete the exchange of the 2 images. The process of switching is done like below. However, then no information is lost, If a power failure occurs.
The scratch area must be large enough to store the largest sector that’s going to be shifted. For RA2 MCUs, the scratch area should be set up to 0x800 when exchange mode is used.
Regards
Nidhi Singh
See lessWhat’s the SKU for LD2981ABM50TR?
Hello, The labeling looks ok F130 = LD2981ABM30TR F133 = LD2981ABM33TR F150 = LD2981ABM50TR So there's a good chance that the LD2981ABM50TR is similar to these devices in SOT23- 5L package. However, please label this thread as answered by selecting Select as best, as also explained here, If the probRead more
Hello,
The labeling looks ok
F130 = LD2981ABM30TR
F133 = LD2981ABM33TR
F150 = LD2981ABM50TR
So there’s a good chance that the LD2981ABM50TR is similar to these devices in SOT23- 5L package.
However, please label this thread as answered by selecting Select as best, as also explained here, If the problem is answered. This will help other users find that answer faster.
Regards
See lessDFlash Wear leveling
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
See lessSBC TLE9471ESVCAN_UV condition
Hii, Thanks for your query. The voltage at the CAN supply pin is covered in CAN Normal and Receive Only Mode. In the case of VCAN Undervoltage signalization via SPI bit VCAN_UV is touched off and the TLE9471ES disables the transmitter stage. If the CAN supply reaches a higher position than the underRead more
Hii,
Thanks for your query.
The voltage at the CAN supply pin is covered in CAN Normal and Receive Only Mode. In the case of VCAN
Undervoltage signalization via SPI bit VCAN_UV is touched off and the TLE9471ES disables the transmitter stage.
If the CAN supply reaches a higher position than the under-voltage finding threshold (VCAN>VCAN_UV,r), the transceiver is automatically switched back to CAN Normal Mode.
The under-voltage finding is enabled if the mode bit CAN_1 = ‘ 1 ’, i.e., in CAN Normal or CAN Receive Only
Mode. As the Receiver is also powered by the VCAN, in case of insufficient supply, it may not transmit the signals correctly and admit them correctly. PFA for further information.
Regards,
See lessSwitching from Community to RA Processor?
Hi Alex, The FSP and SSP releases are at a different meter and each version released is tested/ qualified against a specific version of e2-studio. The distribution download of the platform installer will ensure that the proper version of e2-studio will be with the FSP/ SSP version. I advise that youRead more
Hi Alex,
The FSP and SSP releases are at a different meter and each version released is tested/ qualified against a specific version of e2-studio. The distribution download of the platform installer will ensure that the proper version of e2-studio will be with the FSP/ SSP version. I advise that you command a different and specific installation for SSP and FSP.
Thanks & Regards
See lessNidhi
Why Facing a Peculiar Problem with L5973D
Hi, out of my one experience in switch mode power supplies there are a couple of key points to follow when doing these designs. 1. Insure all resistors are 1 type, this limits the change over temperature which in turn will limit the output change variations. 2. Insure the track from the switching poRead more
Hi,
out of my one experience in switch mode power supplies there are a couple of key points to follow when doing these designs.
1. Insure all resistors are 1 type, this limits the change over temperature which in turn will limit the output change variations.
2. Insure the track from the switching point is close as possible to the coil and doesn’t add resistance to the coil.
3. Output capacitors require to hold a low ESR type
hope some of this helps.
Thanks & Regards
Nidhi Singh
See lessHow to Test LED2000 Circuit Parameter Measurement?
Hi, If you have a DC-coupled Current inquiry you can cover Inductor Current to check if it isn't working in the saturation region. Still, also you can check the switching pin with a voltage inquiry just to see a perfect waveform and measure the right switching frequency. Let me know. Nidhi Singh
Hi,
If you have a DC-coupled Current inquiry you can cover Inductor Current to check if it isn’t working in the saturation region. Still, also you can check the switching pin with a voltage inquiry just to see a perfect waveform and measure the right switching frequency.
Let me know.
Nidhi Singh
See lessESP32 PCB Antenna Design?
Hi Vikas, you can download the modules' reference designs from www.espressif.com/en/support/download/documents, ESP32- WROOM- 32D and ESP32- WROVER- B have the latest antenna designs. You may also directly use modules unless you have reasons for designing your own layout.
Hi Vikas, you can download the modules’ reference designs from http://www.espressif.com/en/support/download/documents, ESP32- WROOM- 32D and ESP32- WROVER- B have the latest antenna designs. You may also directly use modules unless you have reasons for designing your own layout.
See lessRA2L1 AES- 256 Encryption, Decryption Problem?
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
See lessHow to Power ESP32 Devkitc v4 Module from Regulated 5v?
Hii, From boost converter (u really do not need it but anyway.) to ESP32- wroom 5v pin (from photo bottom left pin) and from charge- to GND (ANY OF THEM). Can connect a USB to the ESP32 WROOM directly (with this connection in place, no need to disconnect) and flash any firmware you want, also disconRead more
Hii, From boost converter (u really do not need it but anyway.) to ESP32- wroom 5v pin (from photo bottom left pin) and from charge- to GND (ANY OF THEM).
Can connect a USB to the ESP32 WROOM directly (with this connection in place, no need to disconnect) and flash any firmware you want, also disconnect the USB, and if the battery is full and it’ll work.
Can also connect a USB to the TP4056 for charging WHILE it feeds the ESP32.
You really do not need the Boost since the TP4056 will output3.7 v and you have a 1000mah (milli amps hour) battery which will allow the ESP32 to work for a good while (depending on what u are doing etc) before recharging. In this configuration just connect the OUT to3.3 v (top left) and OUT- to any GND pin.
But u will need a USB connection to load any firmware and later disconnect it and let the battery feed the ESP32.
Enjoy.
See less