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  1. ;**** **** **** **** ****
  2. ;
  3. ; BLHeli program for controlling brushless motors in helicopters and multirotors
  4. ;
  5. ; Copyright 2011, 2012 Steffen Skaug
  6. ; This program is distributed under the terms of the GNU General Public License
  7. ;
  8. ; This file is part of BLHeli.
  9. ;
  10. ; BLHeli is free software: you can redistribute it and/or modify
  11. ; it under the terms of the GNU General Public License as published by
  12. ; the Free Software Foundation, either version 3 of the License, or
  13. ; (at your option) any later version.
  14. ;
  15. ; BLHeli is distributed in the hope that it will be useful,
  16. ; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. ; GNU General Public License for more details.
  19. ;
  20. ; You should have received a copy of the GNU General Public License
  21. ; along with BLHeli. If not, see <http://www.gnu.org/licenses/>.
  22. ;
  23. ;**** **** **** **** ****
  24. ;
  25. ; BlueSeries 30A hardware definition file
  26. ;
  27. ; Notes:
  28. ; - On 2S low voltage limiting does not work fully according to spec, as ADC reference drops with sensed voltage
  29. ; - High side is slow to go on (10s of us) but fast to go off
  30. ;
  31. ;**** **** **** **** ****
  32. ;*********************
  33. ; Device Atmega8A
  34. ;*********************
  35. .INCLUDE "m8Adef.inc"
  36. ;**** **** **** **** ****
  37. ; Fuses must be set to external oscillator = 16Mhz
  38. ;**** **** **** **** ****
  39. ;**** **** **** **** ****
  40. ; Constant definitions
  41. ;**** **** **** **** ****
  42. .ESEG ; EEprom segment
  43. .ORG 0x40
  44. Eep_ESC_Layout: .DB "#BlueSer_30A# " ; ESC layout tag
  45. .ORG 0x50
  46. Eep_ESC_MCU: .DB "#BLHELI#Am8A# " ; Project and MCU tag (16 Bytes)
  47. .EQU HIGH_BEC_VOLTAGE = 0 ; Set to 1 or more if high BEC voltage is supported
  48. .EQU DAMPED_MODE_ENABLE = 1 ; Set to 1 if fully damped mode is supported
  49. .EQU NFETON_DELAY = 7 ; Wait delay from pfets off to nfets on
  50. .EQU PFETON_DELAY = 250 ; Wait delay from nfets off to pfets on
  51. .EQU ADC_LIMIT_L = 116 ; 51k/220k divider. Power supply measurement ADC value for which motor power is limited (low byte)
  52. .EQU ADC_LIMIT_H = 0 ; 51k/220k divider. Power supply measurement ADC value for which motor power is limited (2 MSBs)
  53. .EQU TEMP_LIMIT = 188 ; 1k5/10kNTC. Temperature measurement ADC value for which main motor power is limited
  54. .EQU TEMP_LIMIT_STEP = 14 ; 1k5/10kNTC. Temperature measurement ADC value increment for which main motor power is further limited
  55. ;**** **** **** **** ****
  56. ; ESC specific defaults
  57. ;**** **** **** **** ****
  58. .EQU DEFAULT_PGM_MAIN_SPOOLUP_TIME = 10 ; Main motor spoolup time
  59. .EQU DEFAULT_PGM_MAIN_STARTUP_PWR = 9 ; 1=0.031 2=0.047 3=0.063 4=0.094 5=0.125 6=0.188 7=0.25 8=0.38 9=0.50 10=0.75 11=1.00 12=1.25 13=1.50
  60. .EQU DEFAULT_PGM_TAIL_STARTUP_PWR = 9 ; 1=0.031 2=0.047 3=0.063 4=0.094 5=0.125 6=0.188 7=0.25 8=0.38 9=0.50 10=0.75 11=1.00 12=1.25 13=1.50
  61. .EQU DEFAULT_PGM_MULTI_STARTUP_PWR = 9 ; 1=0.031 2=0.047 3=0.063 4=0.094 5=0.125 6=0.188 7=0.25 8=0.38 9=0.50 10=0.75 11=1.00 12=1.25 13=1.50
  62. ;*********************
  63. ; PORT D definitions *
  64. ;*********************
  65. ;.EQU = 7 ;i
  66. ;.EQU = 6 ;i
  67. .EQU AnFET = 5 ;o
  68. .EQU ApFET = 4 ;o
  69. ;.EQU = 3 ;i
  70. .EQU Rcp_In = 2 ;i
  71. ;.EQU = 1 ;i
  72. ;.EQU = 0 ;i
  73. .equ INIT_PD = (1<<ApFET)
  74. .equ DIR_PD = (1<<AnFET)+(1<<ApFET)
  75. .MACRO Get_Rcp_Capture_Values
  76. in @0, TCNT1L
  77. in @1, TCNT1H
  78. .ENDMACRO
  79. .MACRO Read_Rcp_Int
  80. in @0, PIND
  81. sbrc Flags3, PGM_RCP_PWM_POL ; Is pwm polarity negative?
  82. com @0 ; Yes - invert
  83. .ENDMACRO
  84. .MACRO Get_Rcp_Int_Enable_State
  85. in @0, GICR ; Get int0 enable state (giving 0 is off, anything else is on)
  86. andi @0, (1<<INT0)
  87. .ENDMACRO
  88. .MACRO Rcp_Int_Enable
  89. ldi @0, (1<<INT0) ; Enable int0
  90. out GICR, @0
  91. .ENDMACRO
  92. .MACRO Rcp_Int_Disable
  93. ldi @0, 0 ; Disable int0
  94. out GICR, @0
  95. .ENDMACRO
  96. .MACRO Rcp_Int_First
  97. ldi @0, (1<<ISC01)+(1<<ISC00); Default - set next int0 to rising
  98. sbrc Flags3, PGM_RCP_PWM_POL ; Is pwm polarity negative?
  99. ldi @0, (1<<ISC01) ; Yes - set next int0 to falling
  100. out MCUCR, @0
  101. .ENDMACRO
  102. .MACRO Rcp_Int_Second
  103. ldi @0, (1<<ISC01) ; Default - set next int0 to falling
  104. sbrc Flags3, PGM_RCP_PWM_POL ; Is pwm polarity negative?
  105. ldi @0, (1<<ISC01)+(1<<ISC00); Yes - set next int0 to rising
  106. out MCUCR, @0
  107. .ENDMACRO
  108. .MACRO Rcp_Clear_Int_Flag
  109. clr @0
  110. sbr @0, (1<<INTF0) ; Clear ext0int flag
  111. out GIFR, @0
  112. .ENDMACRO
  113. .MACRO T0_Int_Disable
  114. in @0, TIMSK ; Disable timer0 interrupts
  115. cbr @0, (1<<TOIE0)
  116. out TIMSK, @0
  117. .ENDMACRO
  118. .MACRO T0_Int_Enable
  119. in @0, TIMSK ; Enable timer0 interrupts
  120. sbr @0, (1<<TOIE0)
  121. out TIMSK, @0
  122. .ENDMACRO
  123. .MACRO T1oca_Clear_Int_Flag
  124. ldi @0, (1<<OCF1A) ; Clear oc1a flag
  125. out TIFR, @0
  126. .ENDMACRO
  127. .MACRO T1oca_Int_Disable
  128. in @0, TIMSK ; Disable oc1a interrupts
  129. cbr @0, (1<<OCIE1A)
  130. out TIMSK, @0
  131. .ENDMACRO
  132. .MACRO T1oca_Int_Enable
  133. in @0, TIMSK ; Enable oc1a interrupts
  134. sbr @0, (1<<OCIE1A)
  135. out TIMSK, @0
  136. .ENDMACRO
  137. .MACRO T2_Clear_Int_Flag
  138. clr @0
  139. sbr @0, (1<<TOV2) ; Clear tov2 flag
  140. out TIFR, @0
  141. .ENDMACRO
  142. ;*********************
  143. ; PORT C definitions *
  144. ;*********************
  145. .EQU Mux_B = 7 ; i
  146. .EQU Mux_A = 6 ; i
  147. .EQU BpFET = 5 ; i
  148. .EQU BnFET = 4 ; i
  149. .EQU CpFET = 3 ; i
  150. .EQU Volt_Ip = 2 ; i
  151. .EQU Temp_Ip = 1 ; i
  152. .EQU Mux_C = 0 ; i
  153. .equ INIT_PC = (1<<BpFET)+(1<<CpFET)
  154. .equ DIR_PC = (1<<BnFET)+(1<<BpFET)+(1<<CpFET)
  155. .MACRO AnFET_on
  156. sbi PORTD, AnFET
  157. .ENDMACRO
  158. .MACRO AnFET_off
  159. cbi PORTD, AnFET
  160. .ENDMACRO
  161. .MACRO BnFET_on
  162. sbi PORTC, BnFET
  163. .ENDMACRO
  164. .MACRO BnFET_off
  165. cbi PORTC, BnFET
  166. .ENDMACRO
  167. .MACRO CnFET_on
  168. sbi PORTB, CnFET
  169. .ENDMACRO
  170. .MACRO CnFET_off
  171. cbi PORTB, CnFET
  172. .ENDMACRO
  173. .MACRO All_nFETs_Off
  174. cbi PORTD, AnFET
  175. cbi PORTC, BnFET
  176. cbi PORTB, CnFET
  177. .ENDMACRO
  178. .MACRO ApFET_on
  179. cbi PORTD, ApFET
  180. .ENDMACRO
  181. .MACRO ApFET_off
  182. sbi PORTD, ApFET
  183. .ENDMACRO
  184. .MACRO BpFET_on
  185. cbi PORTC, BpFET
  186. .ENDMACRO
  187. .MACRO BpFET_off
  188. sbi PORTC, BpFET
  189. .ENDMACRO
  190. .MACRO CpFET_on
  191. cbi PORTC, CpFET
  192. .ENDMACRO
  193. .MACRO CpFET_off
  194. sbi PORTC, CpFET
  195. .ENDMACRO
  196. .MACRO All_pFETs_On
  197. cbi PORTD, ApFET
  198. cbi PORTC, BpFET
  199. cbi PORTC, CpFET
  200. .ENDMACRO
  201. .MACRO All_pFETs_Off
  202. sbi PORTD, ApFET
  203. sbi PORTC, BpFET
  204. sbi PORTC, CpFET
  205. .ENDMACRO
  206. .MACRO Damping_FET_On
  207. lds @0, DampingFET
  208. sbrc @0, 0
  209. cbi PORTD, ApFET
  210. sbrc @0, 1
  211. cbi PORTC, BpFET
  212. sbrc @0, 2
  213. cbi PORTC, CpFET
  214. .ENDM
  215. .MACRO Comp_Init
  216. in @0, SFIOR ; Toggle Analog Comparator Multiplexer Enable
  217. cbr @0, (1<<ACME)
  218. out SFIOR, @0
  219. Read_Comp_Out @0
  220. in @0, SFIOR
  221. sbr @0, (1<<ACME)
  222. out SFIOR, @0
  223. .ENDMACRO
  224. .MACRO Set_Comp_Phase_A
  225. ldi @0, Mux_A ; Set comparator multiplexer to phase A
  226. out ADMUX, @0
  227. .ENDMACRO
  228. .MACRO Set_Comp_Phase_B
  229. ldi @0, Mux_B ; Set comparator multiplexer to phase B
  230. out ADMUX, @0
  231. .ENDMACRO
  232. .MACRO Set_Comp_Phase_C
  233. ldi @0, Mux_C ; Set comparator multiplexer to phase C
  234. out ADMUX, @0
  235. .ENDMACRO
  236. .MACRO Read_Comp_Out
  237. in @0, ACSR ; Read comparator output
  238. .ENDMACRO
  239. ;*********************
  240. ; PORT B definitions *
  241. ;*********************
  242. ;.EQU = 7 ; i
  243. ;.EQU = 6 ; i
  244. ;.EQU = 5 ; i
  245. .EQU DebugPin = 4 ; o
  246. ;.EQU = 3 ; i
  247. ;.EQU = 2 ; i
  248. ;.EQU = 1 ; i
  249. .EQU CnFET = 0 ; o
  250. .EQU INIT_PB = 0x00
  251. .EQU DIR_PB = (1<<CnFET)+(1<<DebugPin)
  252. ;**********************
  253. ; MCU specific macros *
  254. ;**********************
  255. .MACRO Interrupt_Table_Definition
  256. rjmp reset
  257. rjmp rcp_int ; ext_int0
  258. nop ; ext_int1
  259. nop ; t2oc_int
  260. rjmp t2_int ; t2ovfl_int
  261. nop ; icp1_int
  262. rjmp t1oca_int ; t1oca_int
  263. nop ; t1ocb_int
  264. nop ; t1ovfl_int
  265. rjmp t0_int ; t0ovfl_int
  266. nop ; spi_int
  267. nop ; urxc
  268. nop ; udre
  269. nop ; utxc
  270. ; nop ; adc_int
  271. ; nop ; eep_int
  272. ; nop ; aci_int
  273. ; nop ; wire2_int
  274. ; nop ; spmc_int
  275. .ENDMACRO
  276. .MACRO Disable_Watchdog
  277. cli ; Disable interrupts
  278. wdr ; Reset watchdog timer
  279. in @0, WDTCR ; Write logical one to WDCE and WDE
  280. ori @0, (1<<WDCE)|(1<<WDE)
  281. out WDTCR, @0
  282. ldi @0, (0<<WDE) ; Turn off WDT
  283. out WDTCR, @0
  284. .ENDMACRO
  285. .MACRO Enable_Watchdog
  286. ldi @0, (1<<WDE) ; Turn on WDT
  287. out WDTCR, @0
  288. .ENDMACRO
  289. .MACRO Initialize_MCU
  290. .ENDMACRO
  291. .MACRO Initialize_Interrupts
  292. ldi @0, (1<<TOIE0)+(1<<OCIE1A)+(1<<TOIE2)
  293. out TIFR, @0 ; Clear interrupts
  294. out TIMSK, @0 ; Enable interrupts
  295. .ENDMACRO
  296. .MACRO Initialize_Adc
  297. in @0, ADCSRA ; Set ADCSRA register (1MHz clock)
  298. sbr @0, (1<<ADPS2)
  299. out ADCSRA, @0
  300. .ENDMACRO
  301. .MACRO Set_Adc_Ip_Volt
  302. cbr Flags1, (1<<ADC_READ_TEMP)
  303. .ENDMACRO
  304. .MACRO Set_Adc_Ip_Temp
  305. sbr Flags1, (1<<ADC_READ_TEMP)
  306. .ENDMACRO
  307. .MACRO Start_Adc
  308. ldi @0, Volt_Ip
  309. sbrc Flags1, ADC_READ_TEMP
  310. ldi @0, Temp_Ip
  311. out ADMUX, @0 ; Set ADMUX register (5V reference, selected input)
  312. in @0, ADCSRA
  313. sbr @0, (1<<ADEN) ; Enable ADC
  314. sbr @0, (1<<ADSC) ; Start ADC conversion
  315. out ADCSRA, @0
  316. .ENDMACRO
  317. .MACRO Get_Adc_Status
  318. in @0, ADCSRA
  319. .ENDMACRO
  320. .MACRO Read_Adc_Result
  321. in @0, ADCL
  322. in @1, ADCH
  323. .ENDMACRO
  324. .MACRO Stop_Adc
  325. in @0, ADCSRA
  326. cbr @0, (1<<ADEN) ; Disable ADC
  327. out ADCSRA, @0
  328. .ENDMACRO
  329. .MACRO Set_Timer0_CS0
  330. out TCCR0, @0
  331. .ENDMACRO
  332. .MACRO Set_Timer1_CS1
  333. out TCCR1B, @0
  334. .ENDMACRO
  335. .MACRO Set_Timer2_CS2
  336. out TCCR2, @0
  337. .ENDMACRO
  338. .MACRO Read_TCNT1L
  339. in @0, TCNT1L
  340. .ENDMACRO
  341. .MACRO Read_TCNT1H
  342. in @0, TCNT1H
  343. .ENDMACRO
  344. .MACRO Set_OCR1AL
  345. out OCR1AL, @0
  346. .ENDMACRO
  347. .MACRO Set_OCR1AH
  348. out OCR1AH, @0
  349. .ENDMACRO
  350. .MACRO Read_TCNT2
  351. in @0, TCNT2
  352. .ENDMACRO
  353. .MACRO Set_TCNT2
  354. out TCNT2, @0
  355. .ENDMACRO
  356. .MACRO Check_Eeprom_Ready
  357. sbic EECR, EEWE
  358. .ENDMACRO
  359. .MACRO Set_Eeprom_Address
  360. out EEARL, @0
  361. out EEARH, @1
  362. .ENDMACRO
  363. .MACRO Start_Eeprom_Write
  364. sbi EECR, EEMWE
  365. sbi EECR, EEWE
  366. .ENDMACRO
  367. .MACRO Prepare_Lock_Or_Fuse_Read
  368. ldi @0, ((1<<BLBSET)+(1<<SPMEN))
  369. out SPMCR, @0
  370. .ENDMACRO
  371. .MACRO xcall
  372. rcall @0
  373. .ENDMACRO
  374. .MACRO Set_RPM_Out
  375. .ENDMACRO
  376. .MACRO Clear_RPM_Out
  377. .ENDMACRO