Presenter’s name
STM8 StartUp
1
14 June 2016
HW and SW tools
HW:
• STM8S-Discovery
SW:
• STM STVP + STVD
• STM8S/A Library
• Cosmic C Compiler
• ST-LINK-v2 (Optional)
LINK
• Useful links are here
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14 June 2016
Installations
Please download and install the following SW
• STM STVP + STVD
• Cosmic C Compiler
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14 June 2016
STM8 Library - 1/2
After download of the STM8S/A Library unzip it, you must
see something like below.
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14 June 2016
STM8 Library - 2/2
stm8s-a_stdperiph_lib_um.chm - is the manual of the library
Libraries - In this folder there are the library (inc & src).
Also there is a manual that detail the library drivers (stm8sa_stdperiph_drivers_um.chm).
Utilities - is a folder there the are some files used on the discovery
and eva boards.
Project - This folder contain other two folder.
STM8S_StdPeriph_Examples - contain a lot of peripheral
examples ready to use.
STM8S_StdPeriph_Template - contain a predefined structure
ready to use with the C Compiler.
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14 June 2016
Concepts regarding the way for develop a new SW
• It is a good idea to use the examples for test all the
peripheral that you need to use in your project.
• I suggest to test one by one the single peripheral and at the
end mix all the peripheral.
• I also suggest to study this manuals.
RM0016: STM8S series and STM8AF series 8-bit microcontrollers
PM0044: STM8 CPU programming manual
AN2860: EMC guidelines for STM8 microcontrollers
AN2867: Oscillator design guide for STM8S, STM8A and STM32 microcontrollers
AN3258: STM8AF and STM8S series HSI oscillator calibration using LIN automatic resynchronization
AN2822: STM8S and STM8A high speed internal oscillator calibration
AN2857: STM8S and STM8A family power management
AN2658: Using the analog to digital converter of the STM8S microcontroller
AN3259: RS232 communications with a terminal using the STM8S-DISCOVERY
See also this tutorials.
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14 June 2016
Start a new project for flashing a led 1/18
We need to flashing a LED on STM8S-Discovery.
As I said, we start using a toggle example that is present
in the STM8S library.
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14 June 2016
Start a new project for flashing a led 2/18
From the STM8S-Discovery manual
the LED is connected to PD0
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14 June 2016
Start a new project for flashing a led 3/18
?
Copy all the file present in the:
GPIO_Toggle
in the:
STM8S_StdPeriph_Template
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14 June 2016
copy
Start a new project for flashing a led 4/18
Run the:
and select:
File -> Open Workspace
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14 June 2016
Start a new project for flashing a led 5/18
Open Workspace:
C:\STM8S_StdPeriph_Lib\Project\STM8S_StdPeriph_Template\STVD\Cosmic\Project.stw
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14 June 2016
Start a new project for flashing a led 6/18
The STM8S-Discovery
is based on:
STM8S105C6T6.
Choose the STM8105
family, see the figure.
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14 June 2016
Start a new project for flashing a led 7/18
Comment the two line:
#define LED_GPIO_PORT (GPIOH)
#define LED_GPIO_PINS (GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_1 | GPIO_PIN_0)
see the red box.
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14 June 2016
Start a new project for flashing a led 8/18
After the sentence:
/* Initialize I/Os in Output Mode */
Modifay the line as below:
GPIO_Init(GPIOD, GPIO_PIN_0, GPIO_MODE_OUT_PP_LOW_FAST);
see the red box.
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14 June 2016
Start a new project for flashing a led 9/18
Compile all
You must see:
stm8s105.elf - 0 error(s), 0 warning(s)
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14 June 2016
Start a new project for flashing a led 10/18
Before to do the debug, please
control the following setup
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14 June 2016
Start a new project for flashing a led 11/18
Now press on the debug button
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14 June 2016
Start a new project for flashing a led 12/18
For run the
program
press on the
RUN button.
See the LED
that must
flashing.
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14 June 2016
Start a new project for flashing a led 13/18
Below the principal debug commands.
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14 June 2016
Start a new project for flashing a led 14/18
Below some debug commands, not used in this example.
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14 June 2016
Start a new project for flashing a led 15/18
Below some debug commands, not used in this example.
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14 June 2016
Start a new project for flashing a led 16/18
Below some debug commands, not used in this example.
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14 June 2016
Start a new project for flashing a led 17/18
For close the debug
press on the:
Stop Debug icon
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14 June 2016
Start a new project for flashing a led 18/18
More info are available on the
Cosmic documentations.
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14 June 2016
Some consideration concerning the SW 1/6
We did some changes in the toggle example because the examples are ready to
use for the EvaBoard (see here).
It is very important to check the following files:
stm8s.h
stm8s_conf.h
Following you will see a brief explanation of the two files.
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14 June 2016
Some consideration concerning the SW 2/6
The stm8s.h is located here
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14 June 2016
Some consideration concerning the SW 3/6
The file stm8s.h defines the MCU that we want to use in our project.
See the line from 39 to 50.
The SetUp in this file is supersede from the SetUp of the compiler, for this
reason all the lines are commented.
In any case, is a good practice, remove from the comment the MCU that you
need to use.
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14 June 2016
Some consideration concerning the SW 4/6
Again, in the file stm8s.h there are the clock definitions that are very important
for serial communications and timers.
It is a must set correct the lines: 108, 110, 117 and 118.
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14 June 2016
Some consideration concerning the SW 5/6
The stm8s_conf.h is
located here
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14 June 2016
Some consideration concerning the SW 6/6
The file stm8s_conf.h enables or disables all peripheral we want to use.
Peripheral enable should be done removing comment on the interested
peripheral.
For default all peripherals are enabled.
See the file from line n.35
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14 June 2016
More info…
Extra info are available from here.
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14 June 2016
Thank you.
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14 June 2016
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