stm32f10x_gpio.lst
来自「针对STM32F103的UCOS移植」· LST 代码 · 共 1,009 行 · 第 1/4 页
LST
1,009 行
117 {
\ GPIO_Init:
\ 00000000 2DE9F041 PUSH {R4-R8,LR}
118 u32 currentmode = 0x00, currentpin = 0x00, pinpos = 0x00, pos = 0x00;
119 u32 tmpreg = 0x00, pinmask = 0x00;
120
121 /* Check the parameters */
122 assert(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
123 assert(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
124
125 /*---------------------------- GPIO Mode Configuration -----------------------*/
126 currentmode = ((u32)GPIO_InitStruct->GPIO_Mode) & ((u32)0x0F);
\ 00000004 CA78 LDRB R2,[R1, #+3]
\ 00000006 1207 LSLS R2,R2,#+28
\ 00000008 120F LSRS R2,R2,#+28
127
128 if ((((u32)GPIO_InitStruct->GPIO_Mode) & ((u32)0x10)) != 0x00)
\ 0000000A CB78 LDRB R3,[R1, #+3]
\ 0000000C DB06 LSLS R3,R3,#+27
\ 0000000E 02D5 BPL.N ??GPIO_Init_0
129 {
130 /* Check the parameters */
131 assert(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
132 /* Output mode */
133 currentmode |= (u32)GPIO_InitStruct->GPIO_Speed;
\ 00000010 1300 MOVS R3,R2
\ 00000012 8A78 LDRB R2,[R1, #+2]
\ 00000014 1A43 ORRS R2,R2,R3
134 }
135
136 /*---------------------------- GPIO CRL Configuration ------------------------*/
137 /* Configure the eight low port pins */
138 if (((u32)GPIO_InitStruct->GPIO_Pin & ((u32)0x00FF)) != 0x00)
\ ??GPIO_Init_0:
\ 00000016 0023 MOVS R3,#+0
\ 00000018 9846 MOV R8,R3
\ 0000001A 0B88 LDRH R3,[R1, #+0]
\ 0000001C DBB2 UXTB R3,R3
\ 0000001E 002B CMP R3,#+0
\ 00000020 1DD0 BEQ.N ??GPIO_Init_1
139 {
140 tmpreg = GPIOx->CRL;
\ 00000022 0568 LDR R5,[R0, #+0]
141
142 for (pinpos = 0x00; pinpos < 0x08; pinpos++)
\ 00000024 4346 MOV R3,R8
\ 00000026 17E0 B.N ??GPIO_Init_2
143 {
144 pos = ((u32)0x01) << pinpos;
\ ??GPIO_Init_3:
\ 00000028 0126 MOVS R6,#+1
\ 0000002A 9E40 LSLS R6,R6,R3
\ 0000002C 3400 MOVS R4,R6
145 /* Get the port pins position */
146 currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
147
148 if (currentpin == pos)
\ 0000002E 0F88 LDRH R7,[R1, #+0]
\ 00000030 2740 ANDS R7,R7,R4
\ 00000032 A742 CMP R7,R4
\ 00000034 0FD1 BNE.N ??GPIO_Init_4
149 {
150 pos = pinpos << 2;
\ 00000036 9C00 LSLS R4,R3,#+2
151 /* Clear the corresponding low control register bits */
152 pinmask = ((u32)0x0F) << pos;
153 tmpreg &= ~pinmask;
154
155 /* Write the mode configuration in the corresponding bits */
156 tmpreg |= (currentmode << pos);
\ 00000038 0F27 MOVS R7,#+15
\ 0000003A A740 LSLS R7,R7,R4
\ 0000003C BD43 BICS R5,R5,R7
\ 0000003E 2F00 MOVS R7,R5
\ 00000040 12FA04F5 LSLS R5,R2,R4
\ 00000044 3D43 ORRS R5,R5,R7
157
158 /* Reset the corresponding ODR bit */
159 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
\ 00000046 CC78 LDRB R4,[R1, #+3]
\ 00000048 282C CMP R4,#+40
\ 0000004A 00D1 BNE.N ??GPIO_Init_5
160 {
161 GPIOx->BRR = (((u32)0x01) << pinpos);
\ 0000004C 4661 STR R6,[R0, #+20]
162 }
163 /* Set the corresponding ODR bit */
164 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
\ ??GPIO_Init_5:
\ 0000004E CC78 LDRB R4,[R1, #+3]
\ 00000050 482C CMP R4,#+72
\ 00000052 00D1 BNE.N ??GPIO_Init_4
165 {
166 GPIOx->BSRR = (((u32)0x01) << pinpos);
\ 00000054 0661 STR R6,[R0, #+16]
167 }
168 }
169 }
\ ??GPIO_Init_4:
\ 00000056 5B1C ADDS R3,R3,#+1
\ ??GPIO_Init_2:
\ 00000058 082B CMP R3,#+8
\ 0000005A E5D3 BCC.N ??GPIO_Init_3
170 GPIOx->CRL = tmpreg;
\ 0000005C 0560 STR R5,[R0, #+0]
171 tmpreg = 0;
172 }
173
174 /*---------------------------- GPIO CRH Configuration ------------------------*/
175 /* Configure the eight high port pins */
176 if (GPIO_InitStruct->GPIO_Pin > 0x00FF)
\ ??GPIO_Init_1:
\ 0000005E 0B88 LDRH R3,[R1, #+0]
\ 00000060 5FF48074 MOVS R4,#+256
\ 00000064 A342 CMP R3,R4
\ 00000066 1FD3 BCC.N ??GPIO_Init_6
177 {
178 tmpreg = GPIOx->CRH;
\ 00000068 4568 LDR R5,[R0, #+4]
179 for (pinpos = 0x00; pinpos < 0x08; pinpos++)
\ 0000006A 4346 MOV R3,R8
\ 0000006C 19E0 B.N ??GPIO_Init_7
180 {
181 pos = (((u32)0x01) << (pinpos + 0x08));
\ ??GPIO_Init_8:
\ 0000006E 0126 MOVS R6,#+1
\ 00000070 1C00 MOVS R4,R3
\ 00000072 0834 ADDS R4,R4,#+8
\ 00000074 A640 LSLS R6,R6,R4
\ 00000076 3400 MOVS R4,R6
182 /* Get the port pins position */
183 currentpin = ((GPIO_InitStruct->GPIO_Pin) & pos);
184 if (currentpin == pos)
\ 00000078 0F88 LDRH R7,[R1, #+0]
\ 0000007A 2740 ANDS R7,R7,R4
\ 0000007C A742 CMP R7,R4
\ 0000007E 0FD1 BNE.N ??GPIO_Init_9
185 {
186 pos = pinpos << 2;
\ 00000080 9C00 LSLS R4,R3,#+2
187 /* Clear the corresponding high control register bits */
188 pinmask = ((u32)0x0F) << pos;
189 tmpreg &= ~pinmask;
190
191 /* Write the mode configuration in the corresponding bits */
192 tmpreg |= (currentmode << pos);
\ 00000082 0F27 MOVS R7,#+15
\ 00000084 A740 LSLS R7,R7,R4
\ 00000086 BD43 BICS R5,R5,R7
\ 00000088 2F00 MOVS R7,R5
\ 0000008A 12FA04F5 LSLS R5,R2,R4
\ 0000008E 3D43 ORRS R5,R5,R7
193
194 /* Reset the corresponding ODR bit */
195 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
\ 00000090 CC78 LDRB R4,[R1, #+3]
\ 00000092 282C CMP R4,#+40
\ 00000094 00D1 BNE.N ??GPIO_Init_10
196 {
197 GPIOx->BRR = (((u32)0x01) << (pinpos + 0x08));
\ 00000096 4661 STR R6,[R0, #+20]
198 }
199 /* Set the corresponding ODR bit */
200 if (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
\ ??GPIO_Init_10:
\ 00000098 CC78 LDRB R4,[R1, #+3]
\ 0000009A 482C CMP R4,#+72
\ 0000009C 00D1 BNE.N ??GPIO_Init_9
201 {
202 GPIOx->BSRR = (((u32)0x01) << (pinpos + 0x08));
\ 0000009E 0661 STR R6,[R0, #+16]
203 }
204 }
205 }
\ ??GPIO_Init_9:
\ 000000A0 5B1C ADDS R3,R3,#+1
\ ??GPIO_Init_7:
\ 000000A2 082B CMP R3,#+8
\ 000000A4 E3D3 BCC.N ??GPIO_Init_8
206 GPIOx->CRH = tmpreg;
\ 000000A6 4560 STR R5,[R0, #+4]
207 }
208 }
\ ??GPIO_Init_6:
\ 000000A8 BDE8F081 POP {R4-R8,PC} ;; return
209
210 /*******************************************************************************
211 * Function Name : GPIO_StructInit
212 * Description : Fills each GPIO_InitStruct member with its default value.
213 * Input : - GPIO_InitStruct : pointer to a GPIO_InitTypeDef structure
214 * which will be initialized.
215 * Output : None
216 * Return : None
217 *******************************************************************************/
\ In segment CODE, align 4, keep-with-next
218 void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
219 {
220 /* Reset GPIO init structure parameters values */
221 GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
\ GPIO_StructInit:
\ 00000000 0349 LDR.N R1,??GPIO_StructInit_0 ;; 0xffff
\ 00000002 0180 STRH R1,[R0, #+0]
222 GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
\ 00000004 0221 MOVS R1,#+2
\ 00000006 8170 STRB R1,[R0, #+2]
223 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN_FLOATING;
\ 00000008 0421 MOVS R1,#+4
\ 0000000A C170 STRB R1,[R0, #+3]
224 }
\ 0000000C 7047 BX LR ;; return
\ 0000000E 00BF Nop
\ ??GPIO_StructInit_0:
\ 00000010 FFFF0000 DC32 0xffff
225
226 /*******************************************************************************
227 * Function Name : GPIO_ReadInputDataBit
228 * Description : Reads the specified input port pin.
229 * Input : - GPIOx: where x can be (A..E) to select the GPIO peripheral.
230 * : - GPIO_Pin: specifies the port bit to read.
231 * This parameter can be GPIO_Pin_x where x can be (0..15).
232 * Output : None
233 * Return : The input port pin value.
234 *******************************************************************************/
\ In segment CODE, align 4, keep-with-next
235 u8 GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, u16 GPIO_Pin)
236 {
\ GPIO_ReadInputDataBit:
\ 00000000 00B5 PUSH {LR}
237 u8 bitstatus = 0x00;
238
239 /* Check the parameters */
240 assert(IS_GET_GPIO_PIN(GPIO_Pin));
241
242 if ((GPIOx->IDR & GPIO_Pin) != (u32)Bit_RESET)
\ 00000002 8068 LDR R0,[R0, #+8]
\ 00000004 0842 TST R0,R1
\ 00000006 01D0 BEQ.N ??GPIO_ReadInputDataBit_0
243 {
244 bitstatus = (u8)Bit_SET;
\ 00000008 0120 MOVS R0,#+1
\ 0000000A 00BD POP {PC}
245 }
246 else
247 {
248 bitstatus = (u8)Bit_RESET;
\ ??GPIO_ReadInputDataBit_0:
\ 0000000C 0020 MOVS R0,#+0
249 }
250 return bitstatus;
\ 0000000E 00BD POP {PC} ;; return
251 }
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