nepozs

Comparison table for ESP8266/ESP32/ESP32-S2/ESP32-S3/ESP32-C3/ESP32-C6

A minimal table to compare the Espressif's MCU families.

	ESP8266	ESP32	ESP32-S2	ESP32-S3	ESP32-C3	ESP32-C6
Announcement Date	2014, August	2016, September	2019, September	2020, December

CC2652 unbricking with Raspberry Pi and OpenOCD

I was a bit quick when flashing my generic CC2652R and ended up dowloading and flashing firmware for CC2652P.. Since it was the wrong firmware, the bootloader also didn't work anymore, making me unable to flash the correct firmware with the integrated USB serial programmer.

Luckily the module has a cJTAG debugging interface, that should make it possible to flash directly onto the chip without the bootloader. But I don't have any serial debuggers, so I have had to come up withj my own from various limited information I could find.

Approach

Using OpenOCD we can use a Raspberry Pi as a JTAG debugger. It does not support cJTAG for debugging, so it will instead send a signal to make the CC2652 switch to normal JTAG. We will then have to connect a few additional cables to the TDO and TDI pins for a full 4-pin JTAG connection.

Google Public NTP [AS15169]:

time.google.com

time1.google.com

time2.google.com

time3.google.com

Główny Urząd Miar [AS50606] [IPv4]

EN: Central Office of Measures

Email: [email protected]

tempus1.gum.gov.pl
- 194.146.251.100
tempus2.gum.gov.pl
- 194.146.251.101

Getting the Raspberry Pi Camera to Work on HASSOS

Enabling the Raspberry Pi camera on HASSOS installations is unfortunately not as simple as connecting the camera and configuring Home Assistant as described at https://www.home-assistant.io/integrations/rpi_camera.

For the camera to work at all, an alternate firmware needs to be loaded when the Raspberry Pi boots. On Raspberry Pi OS (and many others), the alternate firmware is included with the OS installation image, and switching to the alternate firmware is accomplished by running raspi-config and selecting "Enable Camera" from the menu. HASSOS does not include either the alternate firmware or the raspi-config program, so all of the steps need to be done manually.

The steps below attempt to describe the steps that need to be performed. They have worked for me on a Raspberry Pi 3B+ running HASSOS 4.11 through 4.15. If you have a different setup your mileage may vary (but hopefully you'll get enough hints from the below to get it working).

A Home Assista

	//This is a collection of RTTTLs that can be used with any RTTTL player. Foremost it is for the Ulanzi TC001 LED Matrix.
	//Onlineplayer: https://adamonsoon.github.io/rtttl-play/


	Original1:d=4,o=5,b=140:16e,16g,16a,16c

	//ESPHOME - https://esphome.io/components/rtttl.html
	two_short:d=4,o=5,b=100:16e6,16e6
	long:d=1,o=5,b=100:e6
	siren:d=8,o=5,b=100:d,e,d,e,d,e,d,e

	esphome:
	name: $devicename
	platform: ESP8266
	board: d1_mini


	substitutions:
	devicename: ambient-light-sensor
	friendly_name: "Ambient Light Sensor"


	ESPHome camera settings:

	resolution: 640x480 #Not more needed in my usecase
	max_framerate: 10 fps
	idle_framerate: 0.1 fps
	jpeg_quality: 10
	agc_gain_ceiling: 128x
	aec_mode: auto
	aec2: true