Closed DREAM669 closed 8 months ago
We also encountered another issue, when the battery voltage is below 3.8V, pressing the button will reboot the system. Please help take a look.
We also encountered another issue, when the battery voltage is below 3.8V, pressing the button will reboot the system. Please help take a look.
The watch is working until ~3.6 V. I guess you hit the lower voltage limit and this leads to a PoR. Please charge the battery and try it again.
Hi, @jakkra @Kampi Our board voltage is incorrect, and we suspect that the MCU is broken. Then, we replaced the MCU in the NORA-B10 module with a new one and used it in VS code to download the program. We found that the MCU could not be recognized and the code could not be burned. We executed nrfjprog - f NRF53-- recover and received the following error message.
Are you sure that the MCU is soldered correctly?
We also encountered another issue, when the battery voltage is below 3.8V, pressing the button will reboot the system. Please help take a look.
This is expected if you are running old FW, it's the vibration motor turning on and causing the battery voltage to drop and battery supervisor will cut power.
I fixed this like a month ago to not vibrate when low battery voltage.
We also encountered another issue, when the battery voltage is below 3.8V, pressing the button will reboot the system. Please help take a look.
This is expected if you are running old FW, it's the vibration motor turning on and causing the battery voltage to drop and battery supervisor will cut power.
I fixed this like a month ago to not vibrate when low battery voltage.
OK! Thank you!
There is another issue. I saw in your schematic that the program was downloaded with a Vbus pin, but I need to connect the+1V8 pin to the VCC pin of Jlink to download it instead of VBUS. @jakkra @Kampi
There is another issue. I saw in your schematic that the program was downloaded with a Vbus pin, but I need to connect the+1V8 pin to the VCC pin of Jlink to download it instead of VBUS. @jakkra @Kampi
What do you mean? Sure you have to connect the IO voltage of the programming interface to the J-Link for it´s internal level converter. The dock connector is using a 5 V voltage as system voltage, but SWD is running on 3.3 V. So you have to connect 3.3 V to VTarget at your J-Link.
There is another issue. I saw in your schematic that the program was downloaded with a Vbus pin, but I need to connect the+1V8 pin to the VCC pin of Jlink to download it instead of VBUS. @jakkra @Kampi
What do you mean? Sure you have to connect the IO voltage of the programming interface to the J-Link for it´s internal level converter. The dock connector is using a 5 V voltage as system voltage, but SWD is running on 3.3 V. So you have to connect 3.3 V to VTarget at your J-Link.
Hmm, I think this may be the issue. Vref should be 1v8 here not 3v3
Hi, @jakkra @Kampi Our board voltage is incorrect, and we suspect that the MCU is broken. Then, we replaced the MCU in the NORA-B10 module with a new one and used it in VS code to download the program. We found that the MCU could not be recognized and the code could not be burned. We executed nrfjprog - f NRF53-- recover and received the following error message.
Are you sure that the MCU is soldered correctly?
I am not sure. Is there a quick and simple way to determine whether an MCU is soldered correctly?
Hi, @jakkra @Kampi Our board voltage is incorrect, and we suspect that the MCU is broken. Then, we replaced the MCU in the NORA-B10 module with a new one and used it in VS code to download the program. We found that the MCU could not be recognized and the code could not be burned. We executed nrfjprog - f NRF53-- recover and received the following error message.
Are you sure that the MCU is soldered correctly?
I am not sure. Is there a quick and simple way to determine whether an MCU is soldered correctly?
You can talk with it using the debugger :) Did your wrong voltage leves get fixed by replacing MCU?
@DREAM669 you use the dock with an external J-Link? The dock has two use cases:
Debug connector
is used for programming the STM32 -> 3.3 V is correctDebug connector
is connected with Interface
. Then you need 1.8 V. Here we have an issue for sure.I will handle this issue in the next dock release. I´m sorry for this issue. We haven´t thought about it 👎
Hi, @jakkra @Kampi Our board voltage is incorrect, and we suspect that the MCU is broken. Then, we replaced the MCU in the NORA-B10 module with a new one and used it in VS code to download the program. We found that the MCU could not be recognized and the code could not be burned. We executed nrfjprog - f NRF53-- recover and received the following error message.
Are you sure that the MCU is soldered correctly?
I am not sure. Is there a quick and simple way to determine whether an MCU is soldered correctly?
You can talk with it using the debugger :) Did your wrong voltage leves get fixed by replacing MCU?
Yes,the wrong voltage leves get fixed.
@DREAM669 you use the dock with an external J-Link? The dock has two use cases:
- Using internal J-Link:
Debug connector
is used for programming the STM32 -> 3.3 V is correct- Using external J-Link:
Debug connector
is connected withInterface
. Then you need 1.8 V. Here we have an issue for sure.I will handle this issue in the next dock release. I´m sorry for this issue. We haven´t thought about it 👎
Issue: jakkra/ZSWatch-Dock#11
I did not use a dock. I just use a external J-Link.
@DREAM669 you use the dock with an external J-Link? The dock has two use cases:
- Using internal J-Link:
Debug connector
is used for programming the STM32 -> 3.3 V is correct- Using external J-Link:
Debug connector
is connected withInterface
. Then you need 1.8 V. Here we have an issue for sure.I will handle this issue in the next dock release. I´m sorry for this issue. We haven´t thought about it 👎 Issue: jakkra/ZSWatch-Dock#11
I did not use a dock. I just use a external J-Link.
Ah! Okay so you don´t run into the mentioned issue. Glad to hear it 👍
@jakkra @Kampi Can the MCU in the NORA-B10 module be directly replaced with the new nRF5340? We welded and replaced the MCU in the NORA-B10 module on two boards, but we couldn't detect the MCU using Jlink. Executing nrfjprog - f NRF53-- recover -- log would result in an error.
Hi @DREAM669
yes you can attach any nRF5340 dev kit or similar to the pins of the footprint of the NORA module.
@jakkra @Kampi Can the MCU in the NORA-B10 module be directly replaced with the new nRF5340? We welded and replaced the MCU in the NORA-B10 module on two boards, but we couldn't detect the MCU using Jlink. Executing nrfjprog - f NRF53-- recover -- log would result in an error.
But it would be safer to just replace the whole module, or easier at least.
Hi, @jakkra @Kampi Our board voltage is incorrect, and we suspect that the MCU is broken. Then, we replaced the MCU in the NORA-B10 module with a new one and used it in VS code to download the program. We found that the MCU could not be recognized and the code could not be burned. We executed nrfjprog - f NRF53-- recover and received the following error message.