Can CCLoader run on esp32?

[Tolomaj]

Is CCloader runing properly on esp32?

Sketch uploads to esp32 jist fine.

But can here be any problem with this setup ?

[Tolomaj]

For others i tried and yes and it works on esp32

[EntryGoon]

I'm trying using ESP32 instead of ESP8266, for flashing CC2530 with CCloader. can you please let me know on which pins of the ESP32 I should connect ? it should be GPIO4, GPIO5 and GPIO12 for ESP8266, but I assume used GPIO are not the same for ESP32...

[Tolomaj]

Sorry.
It was few months since I played with Ccloader, and I don't remember anymore witch pins that was.
But after quick look in fork of original repo for esp8266(link to repo) i find this.

i assume you can set your pins in .ino file.

[EntryGoon]

Yep i saw that and I have to try this. Thanks a lot for your help :-)

[ds2k5]

@EntryGoon

Hi could you be so kind and help me out....
Did not get FW flashed to CC2530...

[Tolomaj]

As i write above, I dont remember exactly how flash the chip. But..

In my case i flash cc254x chip (actually HM-10 but chip should be same).
Because the datasheet is same for CC254x and CC2530 i think flashing should work the same.

I asked Google and found some thinks i remeber on site: https://www.hangar42.nl/ccloader.
Like pins used for flashing. (I know this is arduino but on CC side it doesn't matter).

And I assume the esp32 pins is this:

 

Also, I remember having some problem with BT (probably some my fault).
But when i try flash some blink code it works.

Unfortunately I can't help more than that.

[ds2k5]

@Tolomaj thanks

had no luck with the ESP32

my colleage rent my his: Chipcon AS SmartRF04DD
so I could flash the hex file with the TI-Software on a Windows Box

[JonRobert]

I've had good luck using a NodeMCU v2 using pins:
// define pins for NodeMCU
int DD = 14; // data
int DC = 4; // Clock
int RESET = 5;
int led = 2

However now I'm trying to use a SEEED XIAO ESP32 C3 (because they are small and I have a couple of extra ones.
I'm using Pins:
// define pins for XIAO esp32-c3
int RESET = 7; //D5; // i2c SCL
int DC = 6; //D4; // i2c SDA
int DD = 8; //D8; // SPI SCLK
// int LED = ;

The results seems to "hang" after (or trying to ) write the 1st block.
Any thoughts'

Waiting for respond from Arduino...

Uploading firmware...

1

[hacst]

Can verify the hang with a ESP32 C3 SuperMini. Worked without any problems on a ESP32 S3 DevKit though.

[JonRobert]

Yes, but it will take some time, I’m in between mother boards. John From: Stefan Hacker ***@***.***> Sent: Friday, September 19, 2025 6:23 PM To: RedBearLab/CCLoader ***@***.***> Cc: JonRobert ***@***.***>; Comment ***@***.***> Subject: Re: [RedBearLab/CCLoader] Can CCLoader run on esp32? (Issue #37) <https://avatars.githubusercontent.com/u/237537?s=20&v=4> hacst left a comment (RedBearLab/CCLoader#37) <#37 (comment)> Can verify the hang with a ESP32 C3 SuperMini. Worked without any problems on a ESP32 S3 DevKit though. — Reply to this email directly, view it on GitHub <#37 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADXP3JJZWF6Y72SHYYL7GOT3TR62TAVCNFSM6AAAAACHAIIEAKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTGMJUGAYTGOJVGI> . You are receiving this because you commented. <https://github.com/notifications/beacon/ADXP3JIMCMGBYJB3JS57PBD3TR62TA5CNFSM6AAAAACHAIIEAKWGG33NNVSW45C7OR4XAZNMJFZXG5LFINXW23LFNZ2KUY3PNVWWK3TUL5UWJTWFQ7LQA.gif> Message ID: ***@***.*** ***@***.***> >