nRF5 action!
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For uploading code onto the Ebyte modules I use an ST-Link V2 (2 dollar USB modules).
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Install the USB-Driver using Zadig
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Connect the DIO, CLK VCC, and GND.
For testing purposes, I soldered just the tips of some Dupont cables to the Ebyte module and put the female parts on the ST-link. -
The first time I want to upload code, I first "burn the bootloader" (Tools => burn Bootloader) (https://forum.mysensors.org/topic/6961/nrf5-bluetooth-action/386)
This will give an error.
After that, you should be able to upload sketches.
@omemanti said in nRF5 Bluetooth action!:
- The first time I want to upload code, I first "burn the bootloader" (Tools => burn Bootloader) (https://forum.mysensors.org/topic/6961/nrf5-bluetooth-action/386)
This will give an error.
After that, you should be able to upload sketches.
That's what I suggested earlier but it seems it didn't work. But I don't remember if it was with an stlink.
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@alowhum
maybe a very stupid question, but did you check all the wires and after that if your computer uses the right drivers.I took me quite a while to figure this out myself. Especially the driver part messes things up. Errors everywhere that referred to different problems, but after I used Zadig they all disappeared.
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@alowhum, you seem to need Jlink Commander:
@toyman said in nRF5 Bluetooth action!:
@alowhum I intentionally asked you because I know the problem exists.
You need to erase the chip via Jlink Commander. Neither nrfjprog nor anything alse will work (AFAIK)
Actually, it was @NeverDie who found it in the beginning of his quest with nrf52. "The thing that started it all" (c)Furthermore, It would be nice to have a small step-by-step guide to unlock and then program the ebyte module.
@Omemanti and @NeverDie are using these modules, so should be able to write something up that works for other ppl ;-)(My ebyte modules are still on their way)
@mars-warrior said in nRF5 Bluetooth action!:
@Omemanti and @NeverDie are using these modules, so should be able to write something up that works for other ppl
As I've said many times previoiusly, I use the nRF52 DK to program external modules, and it's what I recommend for noobs because it's relatively hassle free. If you're able to use the $2 st-link v2 programmer then great, my hat's off to you. If not, I recommend the nRF52 DK rather than get frustrated and give up.
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@mars-warrior said in nRF5 Bluetooth action!:
@Omemanti and @NeverDie are using these modules, so should be able to write something up that works for other ppl
As I've said many times previoiusly, I use the nRF52 DK to program external modules, and it's what I recommend for noobs because it's relatively hassle free. If you're able to use the $2 st-link v2 programmer then great, my hat's off to you. If not, I recommend the nRF52 DK rather than get frustrated and give up.
@neverdie said in nRF5 Bluetooth action!:
nRF52 DK
Which hardware programmer do you use with that?
I find many of these software packages, like Segger's JLink stuff, are made for Windows (I'm on a mac).
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@neverdie said in nRF5 Bluetooth action!:
nRF52 DK
Which hardware programmer do you use with that?
I find many of these software packages, like Segger's JLink stuff, are made for Windows (I'm on a mac).
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@neverdie said in nRF5 Bluetooth action!:
nRF52 DK
Which hardware programmer do you use with that?
I find many of these software packages, like Segger's JLink stuff, are made for Windows (I'm on a mac).
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@Omemanti I didn't realise the nRF52-DK was a hardware device. I thought it was a software program.
On the picture you provided (thanks!), are pin 6 and 8 connected to a serial port to read what's going on? Your ground is connected in a different place than mine (I connect it next to the VCC pin). I suspect both those side-pins near the antenna, at the top, where you have soldered something, are ground too, right?
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@Omemanti I didn't realise the nRF52-DK was a hardware device. I thought it was a software program.
On the picture you provided (thanks!), are pin 6 and 8 connected to a serial port to read what's going on? Your ground is connected in a different place than mine (I connect it next to the VCC pin). I suspect both those side-pins near the antenna, at the top, where you have soldered something, are ground too, right?
@alowhum said in nRF5 Bluetooth action!:
@Omemanti I didn't realise the nRF52-DK was a hardware device. I thought it was a software program.
The nrf52 dev kit= > NRF52 Dev kit
To connect the DK to a module :
DK Ebyte module
GND(detect) => GND
SWDIO => SWDIO
SWDCLK => SWCLK
VTG => 3,3V
3,3V => 3,3V
GND =>GNDselect J-link and there you go.
On the picture you provided (thanks!), are pin 6 and 8 connected to a serial port to read what's going on?
I used Pin 6 and 8 to connect to a FTDI to read out the serial. Since you can tell the sketch where to put the RX and TX I just connected them to 6 & 8.
Your ground is connected in a different place than mine (I connect it next to the VCC pin).
the Ebyte module has multiple GND connections, I messed the one next to the VCC up so I connected them next to the antenna. Just because I was easy ;)
I suspect both those side-pins near the antenna, at the top, where you have soldered something, are ground too, right?
Indeed!
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JLinkExe gives me this:
WARNING: RESET (pin 15) high, but should be low. Please check target hardware.
I already had some signs these EByte modules have a reset issue. As it they are constantly being reset. This points to that again. hmm.
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JLinkExe gives me this:
WARNING: RESET (pin 15) high, but should be low. Please check target hardware.
I already had some signs these EByte modules have a reset issue. As it they are constantly being reset. This points to that again. hmm.
Hey, sorry, I'm not familiar with your error messages.
Can you please sum everything up what you did so far and what your setup looks like (pic)
- Drivers
- Libraries
- what software you use
- Number of modules you tested
- etc
just to retrace your steps ( It might be useful to post it in a separate topic to keep this one cleaner ) => https://forum.mysensors.org/category/5/troubleshooting
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For those interested, NRF52840 is already available on AliExpress from HolyIOT, it's the revision 1 of the chip, too bad they put a chip antenna :(
[Edit] They also have the most compact NRF24 compatible gateway ever, for 10$ :o
https://www.aliexpress.com/store/product/Nordic-nRF52832-BLE-4-0-4-2-5-0-USB-UART-BLE-dongle-for-computer/420533_32862480389.html -
Looks as though there is also a new DK for the nRF52840 as well:
https://www.digikey.com/product-detail/en/nordic-semiconductor-asa/NRF52840-DK/1490-1072-ND/8593726
just not in stock.Looks like HolyIOT is ahead of the curve on this chip.
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@alowhum said in nRF5 Bluetooth action!:
@nca78 said in nRF5 Bluetooth action!:
Cool!
If you buy one, buy the "black" version, it's a bit bigger but it's because it has a PCB antenna, range will be better.
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@alowhum said in nRF5 Bluetooth action!:
@nca78 said in nRF5 Bluetooth action!:
Cool!
If you buy one, buy the "black" version, it's a bit bigger but it's because it has a PCB antenna, range will be better.
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@nca78 I don't recognize any LDO on the PCB while it has USB power supply. How is 5V converted to 3.3v?
@toyman said in nRF5 Bluetooth action!:
@nca78 I don't recognize any LDO on the PCB while it has USB power supply. How is 5V converted to 3.3v?
I was wondering the exact same thing!
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small internal dcdc converter
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@toyman said in nRF5 Bluetooth action!:
@nca78 I don't recognize any LDO on the PCB while it has USB power supply. How is 5V converted to 3.3v?
I was wondering the exact same thing!
@alowhum said in nRF5 Bluetooth action!:
@toyman said in nRF5 Bluetooth action!:
@nca78 I don't recognize any LDO on the PCB while it has USB power supply. How is 5V converted to 3.3v?
I was wondering the exact same thing!
Look at bottom of page 6 and top left of "schematic" on page 9 of the CP2104 datasheet. It can supply up to 100mA.
https://www.silabs.com/documents/public/data-sheets/cp2104.pdf -
Can someone please provide a link to the module being discussed? I tried looking on Aliexpress, and I don't see anything which matches.
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Can someone please provide a link to the module being discussed? I tried looking on Aliexpress, and I don't see anything which matches.
@neverdie it's this link, in the description on aliexpress you can see the internal PCB "module"
https://www.aliexpress.com/store/product/Nordic-nRF52832-BLE-4-0-4-2-5-0-USB-UART-BLE-dongle-for-computer/420533_32862480389.html
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