GNU ARM汇编--(十)s3c2440的RTC

1. =0x8f888@0x0@0x8f888@~(7|(7<4)|(7<8)|(7<16))//低电平触发中断
2. ldrr1,=0xafaaa@0x0@0x8f888//下降沿触发中断
3. strr1,[r0]
5. ldrr0,=EINTPEND
6. ldrr1,=0xf0@0b10000
7. strr1,[r0]
9. ldrr0,=EINTMASK
10. ldrr1,=0x00@0b00000
11. strr1,[r0]
15. ldrr0,=SRCPND
16. ldrr1,=0x3ff|(1<30)@0x1@0b11111
17. strr1,[r0]
19. ldrr0,=SUBSRCPND
20. ldrr1,=0x1<13
21. strr1,[r0]
23. ldrr0,=INTPND
24. ldrr1,=0x3ff|(1<30)@0x1@0b11111
25. strr1,[r0]
27. ldrr0,=INTSUBMSK
28. ldrr1,=0x0<13
29. strr1,[r0]
31. ldrr0,=INTMSK
32. ldrr1,=0x1ffff000@0b00000
33. strr1,[r0]
35. MRSr1,cpsr
36. BICr1,r1,#0x80
37. MSRcpsr_c,r1
40. blmain
42. irq:
43. sublr,lr,#4
44. stmfdsp!,{r0-r12,lr}
47. blirq_isr
48. ldmfdsp!,{r0-r12,pc}^
51. irq_isr:
53. ldrr2,=GPBDAT
54. ldrr1,=0x0e0
55. strr1,[r2]
57. ldrr3,=0xffffff
59. delay2:
60. subr3,r3,#1
62. cmpr3,#0x0
64. bnedelay2
66. //这上面的延时必须要，否则蜂鸣器的声音有问题
67. ldrr0,=EINTPEND
68. ldrr1,=0xf0
69. strr1,[r0]
71. ldrr0,=SRCPND
72. ldrr1,=0x3ff|(1<30)@0b11111
73. strr1,[r0]
75. ldrr0,=SUBSRCPND
76. ldrr1,=0x1<13
77. strr1,[r0]
79. ldrr0,=INTPND
80. ldrr1,=0x3ff|(1<30)@0b11111
81. strr1,[r0]
85. ldrr2,=GPBCON
86. ldrr1,[r2]
87. ldrr1,[r1]
88. //ldrr1,=0x15400
89. bicr1,r1,#0x3
90. orrr1,r1,#0x2
91. strr1,[r2]
93. ldrr2,=GPBDAT
94. ldrr1,=0x1a0
95. strr1,[r2]
97. ldrr1,=TCFG0
98. ldrr2,=(Prescaler0<0)
99. strr2,[r1]
101. ldrr1,=TCFG1
102. ldrr2,=(DMA_MODE<20)|(MUX0<0)
103. strr2,[r1]
105. //ldrr3,[r0]
106. //strr3,[r2]
110. //movr2,r0
112. ldrr1,=TCNTB0
113. ldrr2,=10
114. strr2,[r1]//r0就是c调用汇编的传递参数
116. //movr0,r0,LSR#2
118. ldrr1,=TCMPB0
119. ldrr2,=2
120. strr2,[r1]
124. ldrr1,=TCON
125. ldrr2,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(man_update<1)|(start<0)
126. strr2,[r1]
128. ldrr1,=TCON
129. ldrr2,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(clear_man_update<1)|(start<0)
130. strr2,[r1]
132. ldrr2,=GPBDAT
133. ldrr1,=0x1a0
134. strr1,[r2]
140. movpc,lr
143. delay:
145. ldrr3,=0xffffff
147. delay1:
148. subr3,r3,#1
150. cmpr3,#0x0
152. bnedelay1
154. movpc,lr
157. clock_setup:
159. ldrr0,=LOCKTIME
160. ldrr1,=0xffffffff
161. strr1,[r0]
163. ldrr0,=CLKdivN
164. ldrr1,=(divN_UPLL<3)|(HdivN<1)|(PdivN<0)
165. strr1,[r0]
167. ldrr0,=UPLLCON
168. ldrr1,=(U_Mdiv<12)|(U_Pdiv<4)|(U_Sdiv<0)@Fin=12MUPLL=48M
169. strr1,[r0]
170. nop
171. nop
172. nop
173. nop
174. nop
175. nop
176. nop
177. ldrr0,=MPLLCON
178. ldrr1,=(M_Mdiv<12)|(M_Pdiv<4)|(M_Sdiv<0)@Fin=12MFCLK=400M
179. strr1,[r0]
183. movpc,lr
186. uart_init:
187. ldrr0,=GPHCON
188. ldrr1,=0x2aaaa@配置GPIO复用规则为串口
189. strr1,[r0]
191. ldrr0,=ULCON0
192. ldrr1,=(IR_MODE<6)|(Parity_Mode<3)|(Num_of_stop_bit<2)|(Word_length<0)@
193. strr1,[r0]
195. ldrr0,=UCON0
196. ldrr1,=(FCLK_Div<12)|(Clk_select<10)|(Tx_Int_Type<9)|(Rx_Int_Type<8)|(Rx_Timeout<7)|(Rx_Error_Stat_Int<6)|(Loopback_Mode<5)|(Break_Sig<4)|(Tx_Mode<2)|(Rx_Mode<0)
197. strr1,[r0]
199. ldrr0,=UFCON0
200. ldrr1,=(Tx_FIFO_Trig_Level<6)|(Rx_FIFO_Trig_Level<4)|(Tx_FIFO_Reset<2)|(Rx_FIFO_Reset<1)|(FIFO_Enable<0)@
201. strr1,[r0]
203. ldrr0,=UBRdiv0
204. ldrr1,=(UBRdiv<0)
205. strr1,[r0]
207. movpc,lr
209. /*
210. Buzzer_Freq_Set:
212. //ldrr0,=GPBCON
213. //ldrr1,=0x15400@这个时候暂不配置GPB0为TOUT0，这时候只是配置GPB0为TOUT0
214. //strr1,[r0]
218. ldrr2,=GPBCON
219. ldrr1,[r2]
220. ldrr1,[r1]
221. //ldrr1,=0x15400
222. bicr1,r1,#0x3
223. orrr1,r1,#0x2
224. strr1,[r2]
226. ldrr2,=GPBDAT
227. ldrr1,=0x1a0
228. strr1,[r2]
230. ldrr1,=TCFG0
231. ldrr2,=(Prescaler0<0)
232. strr2,[r1]
234. ldrr1,=TCFG1
235. ldrr2,=(DMA_MODE<20)|(MUX0<0)
236. strr2,[r1]
238. //ldrr3,[r0]
239. //strr3,[r2]
243. //movr2,r0
245. ldrr1,=TCNTB0
246. ldrr2,=10
247. strr2,[r1]//r0就是c调用汇编的传递参数
249. //movr0,r0,LSR#2
251. ldrr1,=TCMPB0
252. ldrr2,=2
253. strr2,[r1]
257. ldrr1,=TCON
258. ldrr2,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(man_update<1)|(start<0)
259. strr2,[r1]
261. ldrr1,=TCON
262. ldrr2,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(clear_man_update<1)|(start<0)
263. strr2,[r1]
265. ldrr2,=GPBDAT
266. ldrr1,=0x1a0
267. strr1,[r2]
269. movpc,lr
270. */
271. main:
273. ldrr2,=GPBDAT
274. ldrr1,=0x1a0
275. strr1,[r2]
276. bldelay
278. //ldrr1,=TCON
279. //ldrr2,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(man_update<1)|(stop<0)
280. //strr2,[r1]
282. /*
283. ldrr2,=GPBCON
284. ldrr1,[r2]
285. ldrr1,[r1]
286. //ldrr1,=0x15400
287. bicr1,r1,#0x3
288. orrr1,r1,#0x2
289. strr1,[r2]
293. ldrr0,=TCFG0
294. ldrr1,=(Prescaler0<0)
295. strr1,[r0]
297. ldrr0,=TCFG1
298. ldrr1,=(DMA_MODE<20)|(MUX0<0)
299. strr1,[r0]
302. ldrr0,=TCNTB0
303. ldrr1,=10
304. strr1,[r0]
306. ldrr0,=TCMPB0
307. ldrr1,=2
308. strr1,[r0]
312. ldrr0,=TCON
313. ldrr1,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(man_update<1)|(start<0)
314. strr1,[r0]
316. ldrr0,=TCON
317. ldrr1,=(DZ_eable<4)|(auto_reload<3)|(inverter<2)|(clear_man_update<1)|(start<0)
318. strr1,[r0]
320. */
328. ldrlr,=loop
329. //ldrpc,_rtc_uart_test
330. //_rtc_uart_test:.wordrtc_uart_test
331. blrtc_uart_test
333. ldrr2,=GPBDAT
334. ldrr1,=0x1c0
335. strr1,[r2]
336. bldelay
337. loop:
338. ldrr2,=BCDSEC@BCDMIN
339. ldrr1,[r2]
340. cmpr1,#0x06
341. bleqledon
344. bloop@死循环
346. ledon:
347. ldrr2,=GPBDAT
348. ldrr1,=0x160
349. strr1,[r2]
351. ldrr3,=0xffffff
353. delay3:
354. subr3,r3,#1
356. cmpr3,#0x0
358. bnedelay3
359. movpc,lr
363. undefined_instruction:
364. nop
365. software_interrupt:
366. nop
367. prefetch_abort:
368. nop
369. data_abort:
370. nop
371. not_used:
372. nop
373. fiq:
374. nop

[cpp]view plaincopy

1. #include
2. #include
3. #include
4. #include
5. #include
7. #include"rtc_uart_test.h"
8. externvoidBuzzer_Freq_Set(intfreq);
9. //externvoidBuzzer_Freq_Set(void);
10. charuart_GetByte(void)
11. {
12. while(!(rUTRSTAT0&0x1));//WaituntilTHRisempty.
13. returnRdURXH0();
14. }
17. voiduart_GetString(char*pt)
18. {
19. while(*pt)
20. uart_GetByte();
21. }
24. voiduart_SendByte(intdata)
25. {
27. if(data==)
28. {
29. while(!(rUTRSTAT0&0x2));
30. WrUTXH0();
31. }
32. while(!(rUTRSTAT0&0x2));//WaituntilTHRisempty.
33. WrUTXH0(data);
35. }
37. //====================================================================
38. vo