JAL (compiler)
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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.
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[edit] 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]
[edit] 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
[edit] References
- ^ 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
