What’s the deal with STM8S Microcontroller EEPROM?
- Let’s dive into the STM8S microcontroller! This cool series packs a bite-sized EEPROM with a usable memory of 640 bytes, which is perfect for a variety of applications.
- So, you’ve got 640 bytes to play with for your storage needs.
- Just a heads up: you’ll need to make sure to include the STM8 flash library in your makefile.
- It might have been added automatically if you followed the steps correctly.
- Don’t forget to add flash components in your main code and set up macro constants, like the EEPROM base address, which helps you find your way around that storage space.
- When you’re configuring, just remember to enter that 640-byte value precisely as the datasheet says..
How to Manage EEPROM Efficiently?
- Managing EEPROM can seem complex, but breaking it down makes it easier! First up, you’ll want to set the flash programming time, which is super crucial for making sure everything gets programmed correctly and efficiently.
- Once that’s sorted, the EEPROM needs to be unlocked so you can access and tweak the stored data.
- It’s a good practice to unlock it before programming and then lock it back up afterwards for added data security.
- Next, erasing the EEPROM is key since you’ll want to wipe existing data to make room for the new stuff.
- Remember, when writing data, you should use 16 bits to maintain accuracy, especially for values like 640, ensuring everything runs smoothly..
How Do You Program Data into EEPROM?
- So, the whole process starts by writing data at the base address , which is really the first step in programming the EEPROM.
- You kick things off by initializing two integer variables— intA gets set to 3 and intB starts at 0.
- This sets the stage for what’s about to happen.
- Next, you take the value of intA and plug it into the base address; this is key for the next operations.
- After that, you need to wait a bit in the flash memtype data area to make sure that initial work is all wrapped up before diving in.
- Finally, you’ll read some data from the flash read-write location, and this information gets stored in intB for later use.
- Easy peasy!.
How to Verify Your EEPROM Setup?
- Alright, let’s dive into the final steps for checking out your EEPROM.
- First off, it’s super important to verify that the EEPROM is working within your overall system—this ensures everything plays nice together.
- For a practical look, there’s a demo using CoolTerm where hitting the reset button reveals that variable A has the value 3, which is actually stored in the EEPROM at the beginning address.
- After commenting out a specific line, running the ‘make flash’ command again helps confirm that everything is properly saved and secure in the memory.
- A quick heads-up: EEPROM addresses kick off at hex address 4000, unlike Arduino, so make sure your part number matches 640 before you move on.
- The session wraps up with a cool demo on controlling the EEPROM through the S108 microcontroller and even invites some audience participation to keep things lively!.