?? stm32f10x_gpio.txt
字號:
00000c ea421200 ORR r2,r2,r0,LSL #4
;;;472 tmpreg |= GPIO_PinSource;
000010 430a ORRS r2,r2,r1
;;;473 AFIO->EVCR = tmpreg;
000012 4b01 LDR r3,|L6.24|
000014 601a STR r2,[r3,#0]
;;;474 }
000016 4770 BX lr
;;;475
ENDP
|L6.24|
DCD 0x40010000
AREA ||i.GPIO_Init||, CODE, READONLY, ALIGN=1
GPIO_Init PROC
;;;171 */
;;;172 void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
000000 b5f0 PUSH {r4-r7,lr}
;;;173 {
;;;174 uint32_t currentmode = 0x00, currentpin = 0x00, pinpos = 0x00, pos = 0x00;
000002 2200 MOVS r2,#0
000004 2300 MOVS r3,#0
000006 2400 MOVS r4,#0
000008 2500 MOVS r5,#0
;;;175 uint32_t tmpreg = 0x00, pinmask = 0x00;
00000a 2600 MOVS r6,#0
00000c 2700 MOVS r7,#0
;;;176 /* Check the parameters */
;;;177 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
;;;178 assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
;;;179 assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
;;;180
;;;181 /*---------------------------- GPIO Mode Configuration -----------------------*/
;;;182 currentmode = ((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x0F);
00000e f891c003 LDRB r12,[r1,#3]
000012 f00c020f AND r2,r12,#0xf
;;;183 if ((((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x10)) != 0x00)
000016 f891c003 LDRB r12,[r1,#3]
00001a f01c0f10 TST r12,#0x10
00001e d003 BEQ |L7.40|
;;;184 {
;;;185 /* Check the parameters */
;;;186 assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
;;;187 /* Output mode */
;;;188 currentmode |= (uint32_t)GPIO_InitStruct->GPIO_Speed;
000020 f891c002 LDRB r12,[r1,#2]
000024 ea4c0202 ORR r2,r12,r2
|L7.40|
;;;189 }
;;;190 /*---------------------------- GPIO CRL Configuration ------------------------*/
;;;191 /* Configure the eight low port pins */
;;;192 if (((uint32_t)GPIO_InitStruct->GPIO_Pin & ((uint32_t)0x00FF)) != 0x00)
000028 f8b1c000 LDRH r12,[r1,#0]
00002c f01c0fff TST r12,#0xff
000030 d031 BEQ |L7.150|
;;;193 {
;;;194 tmpreg = GPIOx->CRL;
000032 6806 LDR r6,[r0,#0]
;;;195 for (pinpos = 0x00; pinpos < 0x08; pinpos++)
000034 2400 MOVS r4,#0
000036 e02b B |L7.144|
|L7.56|
;;;196 {
;;;197 pos = ((uint32_t)0x01) << pinpos;
000038 f04f0c01 MOV r12,#1
00003c fa0cf504 LSL r5,r12,r4
;;;198 /* Get the port pins position */
;;;199 currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
000040 f8b1c000 LDRH r12,[r1,#0]
000044 ea0c0305 AND r3,r12,r5
;;;200 if (currentpin == pos)
000048 42ab CMP r3,r5
00004a d120 BNE |L7.142|
;;;201 {
;;;202 pos = pinpos << 2;
00004c 00a5 LSLS r5,r4,#2
;;;203 /* Clear the corresponding low control register bits */
;;;204 pinmask = ((uint32_t)0x0F) << pos;
00004e f04f0c0f MOV r12,#0xf
000052 fa0cf705 LSL r7,r12,r5
;;;205 tmpreg &= ~pinmask;
000056 43be BICS r6,r6,r7
;;;206 /* Write the mode configuration in the corresponding bits */
;;;207 tmpreg |= (currentmode << pos);
000058 fa02fc05 LSL r12,r2,r5
00005c ea4c0606 ORR r6,r12,r6
;;;208 /* Reset the corresponding ODR bit */
;;;209 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
000060 f891c003 LDRB r12,[r1,#3]
000064 f1bc0f28 CMP r12,#0x28
000068 d106 BNE |L7.120|
;;;210 {
;;;211 GPIOx->BRR = (((uint32_t)0x01) << pinpos);
00006a f04f0c01 MOV r12,#1
00006e fa0cfc04 LSL r12,r12,r4
000072 f8c0c014 STR r12,[r0,#0x14]
000076 e00a B |L7.142|
|L7.120|
;;;212 }
;;;213 else
;;;214 {
;;;215 /* Set the corresponding ODR bit */
;;;216 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
000078 f891c003 LDRB r12,[r1,#3]
00007c f1bc0f48 CMP r12,#0x48
000080 d105 BNE |L7.142|
;;;217 {
;;;218 GPIOx->BSRR = (((uint32_t)0x01) << pinpos);
000082 f04f0c01 MOV r12,#1
000086 fa0cfc04 LSL r12,r12,r4
00008a f8c0c010 STR r12,[r0,#0x10]
|L7.142|
00008e 1c64 ADDS r4,r4,#1 ;195
|L7.144|
000090 2c08 CMP r4,#8 ;195
000092 d3d1 BCC |L7.56|
;;;219 }
;;;220 }
;;;221 }
;;;222 }
;;;223 GPIOx->CRL = tmpreg;
000094 6006 STR r6,[r0,#0]
|L7.150|
;;;224 }
;;;225 /*---------------------------- GPIO CRH Configuration ------------------------*/
;;;226 /* Configure the eight high port pins */
;;;227 if (GPIO_InitStruct->GPIO_Pin > 0x00FF)
000096 f8b1c000 LDRH r12,[r1,#0]
00009a f1bc0fff CMP r12,#0xff
00009e dd34 BLE |L7.266|
;;;228 {
;;;229 tmpreg = GPIOx->CRH;
0000a0 6846 LDR r6,[r0,#4]
;;;230 for (pinpos = 0x00; pinpos < 0x08; pinpos++)
0000a2 2400 MOVS r4,#0
0000a4 e02e B |L7.260|
|L7.166|
;;;231 {
;;;232 pos = (((uint32_t)0x01) << (pinpos + 0x08));
0000a6 f1040c08 ADD r12,r4,#8
0000aa f04f0e01 MOV lr,#1
0000ae fa0ef50c LSL r5,lr,r12
;;;233 /* Get the port pins position */
;;;234 currentpin = ((GPIO_InitStruct->GPIO_Pin) & pos);
0000b2 f8b1c000 LDRH r12,[r1,#0]
0000b6 ea0c0305 AND r3,r12,r5
;;;235 if (currentpin == pos)
0000ba 42ab CMP r3,r5
0000bc d121 BNE |L7.258|
;;;236 {
;;;237 pos = pinpos << 2;
0000be 00a5 LSLS r5,r4,#2
;;;238 /* Clear the corresponding high control register bits */
;;;239 pinmask = ((uint32_t)0x0F) << pos;
0000c0 f04f0c0f MOV r12,#0xf
0000c4 fa0cf705 LSL r7,r12,r5
;;;240 tmpreg &= ~pinmask;
0000c8 43be BICS r6,r6,r7
;;;241 /* Write the mode configuration in the corresponding bits */
;;;242 tmpreg |= (currentmode << pos);
0000ca fa02fc05 LSL r12,r2,r5
0000ce ea4c0606 ORR r6,r12,r6
;;;243 /* Reset the corresponding ODR bit */
;;;244 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
0000d2 f891c003 LDRB r12,[r1,#3]
0000d6 f1bc0f28 CMP r12,#0x28
0000da d105 BNE |L7.232|
;;;245 {
;;;246 GPIOx->BRR = (((uint32_t)0x01) << (pinpos + 0x08));
0000dc f1040c08 ADD r12,r4,#8
0000e0 fa0efe0c LSL lr,lr,r12
0000e4 f8c0e014 STR lr,[r0,#0x14]
|L7.232|
;;;247 }
;;;248 /* Set the corresponding ODR bit */
;;;249 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
0000e8 f891c003 LDRB r12,[r1,#3]
0000ec f1bc0f48 CMP r12,#0x48
0000f0 d107 BNE |L7.258|
;;;250 {
;;;251 GPIOx->BSRR = (((uint32_t)0x01) << (pinpos + 0x08));
0000f2 f1040c08 ADD r12,r4,#8
0000f6 f04f0e01 MOV lr,#1
0000fa fa0efe0c LSL lr,lr,r12
0000fe f8c0e010 STR lr,[r0,#0x10]
|L7.258|
000102 1c64 ADDS r4,r4,#1 ;230
|L7.260|
000104 2c08 CMP r4,#8 ;230
000106 d3ce BCC |L7.166|
;;;252 }
;;;253 }
;;;254 }
;;;255 GPIOx->CRH = tmpreg;
000108 6046 STR r6,[r0,#4]
|L7.266|
;;;256 }
;;;257 }
00010a bdf0 POP {r4-r7,pc}
;;;258
ENDP
AREA ||i.GPIO_PinLockConfig||, CODE, READONLY, ALIGN=1
GPIO_PinLockConfig PROC
;;;430 */
;;;431 void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
000000 f44f3280 MOV r2,#0x10000
;;;432 {
;;;433 uint32_t tmp = 0x00010000;
;;;434
;;;435 /* Check the parameters */
;;;436 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
;;;437 assert_param(IS_GPIO_PIN(GPIO_Pin));
;;;438
;;;439 tmp |= GPIO_Pin;
000004 430a ORRS r2,r2,r1
;;;440 /* Set LCKK bit */
;;;441 GPIOx->LCKR = tmp;
000006 6182 STR r2,[r0,#0x18]
;;;442 /* Reset LCKK bit */
;;;443 GPIOx->LCKR = GPIO_Pin;
000008 6181 STR r1,[r0,#0x18]
;;;444 /* Set LCKK bit */
;;;445 GPIOx->LCKR = tmp;
00000a 6182 STR r2,[r0,#0x18]
;;;446 /* Read LCKK bit*/
;;;447 tmp = GPIOx->LCKR;
00000c 6982 LDR r2,[r0,#0x18]
;;;448 /* Read LCKK bit*/
;;;449 tmp = GPIOx->LCKR;
00000e 6982 LDR r2,[r0,#0x18]
;;;450 }
000010 4770 BX lr
;;;451
ENDP
AREA ||i.GPIO_PinRemapConfig||, CODE, READONLY, ALIGN=2
GPIO_PinRemapConfig PROC
;;;529 */
;;;530 void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState)
000000 b5f0 PUSH {r4-r7,lr}
;;;531 {
;;;532 uint32_t tmp = 0x00, tmp1 = 0x00, tmpreg = 0x00, tmpmask = 0x00;
000002 2200 MOVS r2,#0
000004 2300 MOVS r3,#0
000006 2500 MOVS r5,#0
000008 2400 MOVS r4,#0
;;;533
;;;534 /* Check the parameters */
;;;535 assert_param(IS_GPIO_REMAP(GPIO_Remap));
;;;536 assert_param(IS_FUNCTIONAL_STATE(NewState));
;;;537
;;;538 tmpreg = AFIO->MAPR;
00000a 4e17 LDR r6,|L9.104|
00000c 6875 LDR r5,[r6,#4]
;;;539
;;;540 tmpmask = (GPIO_Remap & DBGAFR_POSITION_MASK) >> 0x10;
00000e f3c04403 UBFX r4,r0,#16,#4
;;;541 tmp = GPIO_Remap & LSB_MASK;
000012 b282 UXTH r2,r0
;;;542
;;;543 if ((GPIO_Remap & (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK)) == (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK))
000014 f4001640 AND r6,r0,#0x300000
000018 f5b61f40 CMP r6,#0x300000
00001c d108 BNE |L9.48|
;;;544 {
;;;545 tmpreg &= DBGAFR_SWJCFG_MASK;
00001e f0256570 BIC r5,r5,#0xf000000
;;;546 AFIO->MAPR &= DBGAFR_SWJCFG_MASK;
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -