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;**** **** **** **** ****
;
; BLHeli program for controlling brushless motors in helicopters and multirotors
;
; Copyright 2011, 2012 Steffen Skaug
; This program is distributed under the terms of the GNU General Public License
;
; This file is part of BLHeli.
;
; BLHeli is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
;
; BLHeli is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with BLHeli. If not, see <http://www.gnu.org/licenses/>.
;
;**** **** **** **** ****
;
; BLHeliTxPgm SiLabs
;
; EEPROM is not available in SiLabs MCUs
; Therefore a segment of the flash is used as "EEPROM"
;
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;
; Read all eeprom parameters routine
;
; No assumptions
;
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read_all_eeprom_parameters:
; Check initialized signature
mov DPTR, #Eep_Initialized_L
mov Temp1, #Bit_Access
call read_eeprom_byte
mov A, Bit_Access
IF MODE == 0
cjne A, #0A5h, read_eeprom_store_defaults
ENDIF
IF MODE == 1
cjne A, #05Ah, read_eeprom_store_defaults
ENDIF
IF MODE == 2
cjne A, #055h, read_eeprom_store_defaults
ENDIF
inc DPTR ; Now Eep_Initialized_H
call read_eeprom_byte
mov A, Bit_Access
IF MODE == 0
cjne A, #05Ah, read_eeprom_store_defaults
ENDIF
IF MODE == 1
cjne A, #0A5h, read_eeprom_store_defaults
ENDIF
IF MODE == 2
cjne A, #0AAh, read_eeprom_store_defaults
ENDIF
jmp read_eeprom_read
read_eeprom_store_defaults:
mov Flash_Key_1, #0A5h
mov Flash_Key_2, #0F1h
call set_default_parameters
call erase_and_store_all_in_eeprom
mov Flash_Key_1, #0
mov Flash_Key_2, #0
jmp read_eeprom_exit
read_eeprom_read:
; Read eeprom
IF MODE == 0 OR MODE == 2 ;Main or multi
mov DPTR, #Eep_Pgm_Gov_P_Gain
ENDIF
IF MODE == 1 ; Tail
mov DPTR, #_Eep_Pgm_Gov_P_Gain
ENDIF
mov Temp1, #Pgm_Gov_P_Gain
mov Temp4, #10
read_eeprom_block1:
call read_eeprom_byte
inc DPTR
inc Temp1
djnz Temp4, read_eeprom_block1
mov DPTR, #Eep_Enable_TX_Program
mov Temp1, #Pgm_Enable_TX_Program
mov Temp4, #25 ; 25 parameters
read_eeprom_block2:
call read_eeprom_byte
inc DPTR
inc Temp1
djnz Temp4, read_eeprom_block2
mov DPTR, #Eep_Dummy ; Set pointer to uncritical area
read_eeprom_exit:
ret
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;
; Erase flash and store all parameter value in EEPROM routine
;
; No assumptions
;
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erase_and_store_all_in_eeprom:
clr EA ; Disable interrupts
call read_tags
call erase_flash ; Erase flash
mov DPTR, #Eep_FW_Main_Revision ; Store firmware main revision
mov A, #EEPROM_FW_MAIN_REVISION
call write_eeprom_byte_from_acc
inc DPTR ; Now firmware sub revision
mov A, #EEPROM_FW_SUB_REVISION
call write_eeprom_byte_from_acc
inc DPTR ; Now layout revision
mov A, #EEPROM_LAYOUT_REVISION
call write_eeprom_byte_from_acc
; Write eeprom
IF MODE == 0 OR MODE == 2 ;Main or multi
mov DPTR, #Eep_Pgm_Gov_P_Gain
ENDIF
IF MODE == 1 ; Tail
mov DPTR, #_Eep_Pgm_Gov_P_Gain
ENDIF
mov Temp1, #Pgm_Gov_P_Gain
mov Temp4, #10
write_eeprom_block1:
call write_eeprom_byte
inc DPTR
inc Temp1
djnz Temp4, write_eeprom_block1
mov DPTR, #Eep_Enable_TX_Program
mov Temp1, #Pgm_Enable_TX_Program
mov Temp4, #25 ; 25 parameters
write_eeprom_block2:
call write_eeprom_byte
inc DPTR
inc Temp1
djnz Temp4, write_eeprom_block2
call write_tags
call write_eeprom_signature
mov DPTR, #Eep_Dummy ; Set pointer to uncritical area
ret
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;
; Read eeprom byte routine
;
; Gives data in A and in address given by Temp1. Assumes address in DPTR
; Also assumes address high byte to be zero
;
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read_eeprom_byte:
clr A
movc A, @A+DPTR ; Read from flash
mov @Temp1, A
ret
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; Write eeprom byte routine
;
; Assumes data in address given by Temp1, or in accumulator. Assumes address in DPTR
; Also assumes address high byte to be zero
;
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write_eeprom_byte:
mov A, @Temp1
write_eeprom_byte_from_acc:
orl PSCTL, #01h ; Set the PSWE bit
anl PSCTL, #0FDh ; Clear the PSEE bit
mov Temp8, A
clr C
mov A, DPH ; Check that address is not in bootloader area
subb A, #1Ch
jc ($+3)
ret
mov A, Temp8
mov FLKEY, Flash_Key_1 ; First key code
mov FLKEY, Flash_Key_2 ; Second key code
movx @DPTR, A ; Write to flash
anl PSCTL, #0FEh ; Clear the PSWE bit
ret
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;
; Erase flash routine (erases the flash segment used for "eeprom" variables)
;
; No assumptions
;
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erase_flash:
orl PSCTL, #02h ; Set the PSEE bit
orl PSCTL, #01h ; Set the PSWE bit
mov FLKEY, Flash_Key_1 ; First key code
mov FLKEY, Flash_Key_2 ; Second key code
mov DPTR, #Eep_Initialized_L
movx @DPTR, A
anl PSCTL, #0FCh ; Clear the PSEE and PSWE bits
ret
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;
; Write eeprom signature routine
;
; No assumptions
;
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write_eeprom_signature:
IF MODE == 0
mov DPTR, #Eep_Initialized_L
mov A, #0A5h
call write_eeprom_byte_from_acc
mov DPTR, #Eep_Initialized_H
mov A, #05Ah
call write_eeprom_byte_from_acc
ENDIF
IF MODE == 1
mov DPTR, #Eep_Initialized_L
mov A, #05Ah
call write_eeprom_byte_from_acc
mov DPTR, #Eep_Initialized_H
mov A, #0A5h
call write_eeprom_byte_from_acc
ENDIF
IF MODE == 2
mov DPTR, #Eep_Initialized_L
mov A, #055h
call write_eeprom_byte_from_acc
mov DPTR, #Eep_Initialized_H
mov A, #0AAh
call write_eeprom_byte_from_acc
ENDIF
ret
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;
; Read all tags from flash and store in temporary storage
;
; No assumptions
;
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read_tags:
mov Temp3, #48 ; Number of tags
mov Temp2, #Tag_Temporary_Storage ; Set RAM address
mov Temp1, #Bit_Access
mov DPTR, #Eep_ESC_Layout ; Set flash address
read_tag:
call read_eeprom_byte
mov A, Bit_Access
mov @Temp2, A ; Write to RAM
inc Temp2
inc DPTR
djnz Temp3, read_tag
ret
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;
; Write all tags from temporary storage and store in flash
;
; No assumptions
;
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write_tags:
mov Temp3, #48 ; Number of tags
mov Temp2, #Tag_Temporary_Storage ; Set RAM address
mov DPTR, #Eep_ESC_Layout ; Set flash address
write_tag:
mov A, @Temp2 ; Read from RAM
call write_eeprom_byte_from_acc
inc Temp2
inc DPTR
djnz Temp3, write_tag
ret
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;
; Store new parameter value in ram routine
;
; No assumptions
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store_new_value_in_ram:
mov Temp4, Tx_Pgm_Func_No ; Function no
mov Temp1, Tx_Pgm_Paraval_No ; Parameter value no
IF MODE == 0
store_main_func_1:
cjne Temp4, #1, store_main_func_2
mov Temp2, #Pgm_Gov_P_Gain
store_main_func_2:
cjne Temp4, #2, store_main_func_3
mov Temp2, #Pgm_Gov_I_Gain
store_main_func_3:
cjne Temp4, #3, store_main_func_4
mov Temp2, #Pgm_Gov_Mode
store_main_func_4:
cjne Temp4, #4, store_main_func_5
mov Temp2, #Pgm_Gov_Range
store_main_func_5:
cjne Temp4, #5, store_main_func_6
mov Temp2, #Pgm_Low_Voltage_Lim
store_main_func_6:
cjne Temp4, #6, store_main_func_7
mov Temp2, #Pgm_Startup_Pwr
store_main_func_7:
cjne Temp4, #7, store_main_func_8
mov Temp2, #Pgm_Comm_Timing
store_main_func_8:
cjne Temp4, #8, store_main_func_9
mov Temp2, #Pgm_Pwm_Freq
store_main_func_9:
cjne Temp4, #9, store_main_func_10
mov Temp2, #Pgm_Demag_Comp
store_main_func_10:
cjne Temp4, #10, store_main_func_11
mov Temp2, #Pgm_Direction
store_main_func_11:
cjne Temp4, #11, store_in_ram_exit
mov Temp2, #Pgm_Input_Pol
ENDIF
IF MODE == 1
store_tail_func_1:
cjne Temp4, #1, store_tail_func_2
mov Temp2, #Pgm_Motor_Gain
store_tail_func_2:
cjne Temp4, #2, store_tail_func_3
mov Temp2, #Pgm_Motor_Idle
store_tail_func_3:
cjne Temp4, #3, store_tail_func_4
mov Temp2, #Pgm_Startup_Pwr
store_tail_func_4:
cjne Temp4, #4, store_tail_func_5
mov Temp2, #Pgm_Comm_Timing
store_tail_func_5:
cjne Temp4, #5, store_tail_func_6
mov Temp2, #Pgm_Pwm_Freq
store_tail_func_6:
cjne Temp4, #6, store_tail_func_7
mov Temp2, #Pgm_Pwm_Dither
store_tail_func_7:
cjne Temp4, #7, store_tail_func_8
mov Temp2, #Pgm_Demag_Comp
store_tail_func_8:
cjne Temp4, #8, store_tail_func_9
mov Temp2, #Pgm_Direction
store_tail_func_9:
cjne Temp4, #9, store_in_ram_exit
mov Temp2, #Pgm_Input_Pol
ENDIF
IF MODE == 2
store_multi_func_1:
cjne Temp4, #1, store_multi_func_2
mov Temp2, #Pgm_Gov_P_Gain
store_multi_func_2:
cjne Temp4, #2, store_multi_func_3
mov Temp2, #Pgm_Gov_I_Gain
store_multi_func_3:
cjne Temp4, #3, store_multi_func_4
mov Temp2, #Pgm_Gov_Mode
store_multi_func_4:
cjne Temp4, #4, store_multi_func_5
mov Temp2, #Pgm_Motor_Gain
store_multi_func_5:
cjne Temp4, #5, store_multi_func_6
mov Temp2, #Pgm_Startup_Pwr
store_multi_func_6:
cjne Temp4, #6, store_multi_func_7
mov Temp2, #Pgm_Comm_Timing
store_multi_func_7:
cjne Temp4, #7, store_multi_func_8
mov Temp2, #Pgm_Pwm_Freq
store_multi_func_8:
cjne Temp4, #8, store_multi_func_9
mov Temp2, #Pgm_Pwm_Dither
store_multi_func_9:
cjne Temp4, #9, store_multi_func_10
mov Temp2, #Pgm_Demag_Comp
store_multi_func_10:
cjne Temp4, #10, store_multi_func_11
mov Temp2, #Pgm_Direction
store_multi_func_11:
cjne Temp4, #11, store_in_ram_exit
mov Temp2, #Pgm_Input_Pol
ENDIF
store_in_ram_exit:
mov A, Temp1
mov @Temp2, A
ret
;**;**** **** **** **** **** **** **** **** **** **** **** **** ****
;
; Wait 1 second routine
;
; No assumptions
;
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wait1s:
mov Temp5, #5
wait1s_loop:
call wait200ms
djnz Temp5, wait1s_loop
ret
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;
; Success beep routine
;
; No assumptions
;
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success_beep:
clr EA ; Disable all interrupts
call beep_f1
call beep_f2
call beep_f3
call beep_f4
call wait10ms
call beep_f1
call beep_f2
call beep_f3
call beep_f4
call wait10ms
call beep_f1
call beep_f2
call beep_f3
call beep_f4
setb EA ; Enable all interrupts
ret
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;
; Success beep inverted routine
;
; No assumptions
;
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success_beep_inverted:
clr EA ; Disable all interrupts
call beep_f4
call beep_f3
call beep_f2
call beep_f1
call wait10ms
call beep_f4
call beep_f3
call beep_f2
call beep_f1
call wait10ms
call beep_f4
call beep_f3
call beep_f2
call beep_f1
setb EA ; Enable all interrupts
ret
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;
; Function and parameter value beep routine
;
; No assumptions
;
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function_paraval_beep:
mov Temp7, Tx_Pgm_Func_No ; Function no
mov Temp8, Tx_Pgm_Paraval_No ; Parameter value no
clr EA ; Disable all interrupts
function_beep:
call beep_f1
call beep_f1
call beep_f1
call wait10ms
djnz Temp7, function_beep
paraval_beep:
call beep_f4
call wait10ms
djnz Temp8, paraval_beep
setb EA ; Enable all interrupts
ret
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;
; Program by TX routine
;
; No assumptions
;
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program_by_tx:
; Programming mode entry beeps
call success_beep
call wait1s
call wait1s
; Start at function 1, parameter value 1
mov Tx_Pgm_Func_No, #1
paraval_no_entry:
mov Tx_Pgm_Paraval_No, #1
beep_no_entry:
mov Tx_Pgm_Beep_No, #0
func_paraval:
call function_paraval_beep
mov Temp5, #5 ; Wait is 5x 200ms
func_paraval_wait:
mov Temp6, New_Rcp ; Load RC pulse
call wait200ms
clr C
mov A, Temp6
subb A, New_Rcp ; Is RC pulse stable? (Avoid issues from 3in1 interference)
jnz func_paraval_wait ; No - branch
clr C
mov A, New_Rcp ; Load new RC pulse value
subb A, #RCP_STOP ; Below stop?
jc func_paraval_store ; Yes - branch
clr C
mov A, New_Rcp ; Load new RC pulse value
subb A, #RCP_MAX ; Below max?
jc function_next ; Yes - branch
ljmp func_paraval_cont_wait ; No - branch
func_paraval_store:
call store_new_value_in_ram ; Yes - store new value in RAM
call erase_and_store_all_in_eeprom ; Store all values in EEPROM
call success_beep ; Beep success
clr EA ; Disable all interrupts
IF ONE_S_CAPABLE == 0
mov RSTSRC, #16h ; Generate hardware reset and set missing clock and VDD monitor
ELSE
mov RSTSRC, #14h ; Generate hardware reset and disable VDD monitor
ENDIF
call wait1s
func_paraval_cont_wait:
djnz Temp5, func_paraval_wait
inc Tx_Pgm_Beep_No ; Check number of beeps
clr C
mov A, Tx_Pgm_Beep_No
subb A, #3 ; Three beeps done?
jnc paraval_next ; Yes - Next parameter value
jmp func_paraval ; No - go back
paraval_next:
call wait1s
inc Tx_Pgm_Paraval_No ; Parameter value no
IF MODE == 0
mov A, Tx_Pgm_Func_No ; Decode number of parameters
dec A
mov DPTR, #TX_PGM_PARAMS_MAIN
movc A, @A+DPTR
mov Temp1, A
ENDIF
IF MODE == 1
mov A, Tx_Pgm_Func_No ; Decode number of parameters
dec A
mov DPTR, #TX_PGM_PARAMS_TAIL
movc A, @A+DPTR
mov Temp1, A
ENDIF
IF MODE == 2
mov A, Tx_Pgm_Func_No ; Decode number of parameters
dec A
mov DPTR, #TX_PGM_PARAMS_MULTI
movc A, @A+DPTR
mov Temp1, A
ENDIF
inc Temp1
clr C
mov A, Tx_Pgm_Paraval_No
subb A, Temp1
jnc function_next ; Last parameter value?
jmp beep_no_entry ; No - go back
function_next: ; Yes - Next function value
call wait1s
call wait1s
inc Tx_Pgm_Func_No ; Function value no
IF MODE == 0
clr C
mov A, Tx_Pgm_Func_No
subb A, #12 ; Main has 11 functions
ENDIF
IF MODE == 1
clr C
mov A, Tx_Pgm_Func_No
subb A, #10 ; Tail has 9 functions
ENDIF
IF MODE == 2
clr C
mov A, Tx_Pgm_Func_No
subb A, #12 ; Multi has 11 functions
ENDIF
jnc program_by_tx_exit ; Last function value?
jmp paraval_no_entry ; No - go back
program_by_tx_exit:
call set_default_parameters ; Load all defaults
call erase_and_store_all_in_eeprom ; Erase flash and program
clr EA ; Disable all interrupts
IF ONE_S_CAPABLE == 0
mov RSTSRC, #16h ; Generate hardware reset and set missing clock and VDD monitor
ELSE
mov RSTSRC, #14h ; Generate hardware reset and disable VDD monitor
ENDIF
call wait1s