JAL (compiler)

For other uses of "JAL", see JAL.

JAL (Just Another Language) is a Pascal-like programming language and compiler that generates executable code for PIC microcontrollers. It is a free-format language with a compiler that runs on Linux, MS-Windows and MS-DOS (OSX support). It is configurable and extendable through the use of libraries and can even be combined with PIC assembly language.

History

JAL was originally created by Wouter van Ooijen and released as free software under the GNU General Public License in 2003. In 2006, Stef Mientki initiated the development of a new version, JALV2, which was programmed by Kyle York and beta tested by an international user group.[1]

Sample code

-- JAL 2.3
include 16f877_bert--define the variables
var byte resist--define the pins
pin_a0_direction = input--variable resistor
pin_d7_direction = input--switch
pin_c2_direction = output--pwm led--enable pulse width modulation
PWM_init_frequency (true, true)

forever loop--convert analog on a0 to digital
   resist = ADC_read_low_res(0)

   -- run measurement through flash memory
   program_eeprom_write(2000,resist)
   program_eeprom_read(2000,resist)

   -- run measurement through data memory
   data_eeprom_write(10,resist)
   data_eeprom_read(10,resist)

   -- if the switch is pressed return random value
   if pin_d7 == high then
      resist = random_byte
   end if--send resistance to PC
   serial_sw_write(resist)
   delay_100ms(1)
   -- set actual PWM duty cycle
   PWM_Set_DutyCycle (resist, resist)

end loop

References

  1. ↑ Beta testing by: Bert van Dam, Sunish Isaac, Dave Lagzdin, Javier Martinez, Stef Mientki, Wouter van Ooijen, Michael Reynolds, André Steenveld, Joep Suijs, Vasile Surducan, and Michael Watterson
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