|
|
Line 43: |
Line 43: |
| [[Media:lcd-2x16-datasheet.pdf|LCD 2x16 chars]] | | [[Media:lcd-2x16-datasheet.pdf|LCD 2x16 chars]] |
| | | |
− | || | + | | |
| [[Media:18F97J94.pdf|CPU PIC18F97J94 datasheet]] | | [[Media:18F97J94.pdf|CPU PIC18F97J94 datasheet]] |
| | | |
Revision as of 12:16, 12 March 2021
Welcome to the PICEBS3 wiki
PICEBS3 is the name of a small embedded computer board targeted at teaching embedded systems programming based on the Mikroe EasyPicPro v8 board.
As its name suggests, it is the third iteration of a successful family of Microchip PIC board.
The Mikroe board has been just modified for our laboratories usage.
Please note that, as a student, you can loan a board for free during your studies to work at home ;-) Just ask the laboratory responsible Pascal Sartoretti (sap) for the procedure to follow.
We, the PICEBS3 team, provide a comprehensive solution for
- Practical work for HEI course Information systems given in second year.
- All kind of project featuring a small-sized micro-controller.
What can be done with the PICEBS3?
The board is powerful enough to run applications with:
- LCD and touch screen interface
- Serial port usage (UART)
- CAN interface
- ...
To program this board, you do not require an external programming probe, as it already includes a "Microchip Snap"system for programming and debugging. All you need is an USB port and the free MPLAB-X IDE. Caution, the USB câble has to be an USB-A cable.
Hardware
Schematic |
Documentation pdf
|
PICEBS 3 - EasyPICPro v8 schematic
CPU board 18F97J94
Mikrobus CAN MCP2518FD
LCD capacitive 800x480
LCD 2x16 chars
|
CPU PIC18F97J94 datasheet
LCD controller SSD1963 datasheet
CAN FD controller MCP2518FD datasheet
|
}
Here is a list of the main PICEBS3's characteristics:
- CPU PIC18F97J94
- High range PIC18 family with 128kB Flash & 4kB RAM, Lite PPS
- 12 bits ADC
- 9 timers
- 4 UART, 2 SPI, 2 I2C
- USB
- ...
- Onboard SNAP debugger (not on EasyPicPro v8 standard)
- Compatible with MPLABX (uage of USB-A cable is mandatory)
- I/O ports
- 10 ports with optional led
- each of them with a button (pull-up or pull-down selectable)
- Capacitive multi points touch screen
- LCD Display
- 800x480
- Backlight
- Capacitive multi points touch screen
- Networking and communication
- CAN bus
- RS232 (throuth USB FTDI)
- USB interface (device, low or full speed)
- Ethernet interface(not with the CPU module PIC18F97J94)
- Development
- Almost all CPU pins are available on connectors
- CPU current measure available on a 1 ohm resistor (not on EasyPicPro v8 standard)
Software
To access these files on hevs gitlab, choose the user: "hevslabs" with the password: "hevslabs" !
- Source files for assembler laboratories
- Source files for C laboratories
- Tools
Tips & tricks
// to work at maximum CPU speed (64MHz) insert following code at start.
OSCCON3 = 0; // for 64MHz cpu clock (default is 32MHz)
...
#include <xc.inc>
main:
movlw 0x00 ; move literal value 0x00 to W
movwf TRISH,a ; move the content of W to TRISH, (access bank)
movlb 0x01 ; select bank
movwf 0x125,b ; move W to memory position 0x125 (banked)
loop:
goto loop
end main
// to change one bit on a port, use LATx and not PORTx
LATH2 = 1; // turn led on for example
...
- Interrupt implementation with compiler 2.0 or above
void __interrupt(high_priority) AnyISR(void)
{
if(INT0IF == 1)
{
...
}
}
Bugs, issues, questions and comments
Feel free to contact the PICEBS3 team if you encounter a problem. Do not forget to have a look at the Tips & tricks section.