嵌入式物联网项目实战-STM32F103实现CAN通讯polling方式

; generated by Component: ARM Compiler 5.06 update 7 (build 960) Tool: ArmCC [4d365d] ; commandline ArmCC [--list --debug -c --asm --interleave -o.\stm32f10x_can.o --asm_dir=.\ --list_dir=.\ --depend=.\stm32f10x_can.d --cpu=Cortex-M3 --apcs=interwork -O0 --diag_suppress=9931 -I.\lib\inc -IC:\Keil_v5\ARM\RV31\INC -IC:\Keil_v5\ARM\CMSIS\Include -IC:\Keil_v5\ARM\INC\ST\STM32F10x -D__UVISION_VERSION=533 -DVECT_TAB_RAM --omf_browse=.\stm32f10x_can.crf lib\src\stm32f10x_can.c] THUMB AREA ||.text||, CODE, READONLY, ALIGN=2 CAN_DeInit PROC ;;;89 *******************************************************************************/ ;;;90 void CAN_DeInit(void) 000000 b510 PUSH {r4,lr} ;;;91 { ;;;92 /* Enable CAN reset state */ ;;;93 RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN, ENABLE); 000002 2101 MOVS r1,#1 000004 0648 LSLS r0,r1,#25 000006 f7fffffe BL RCC_APB1PeriphResetCmd ;;;94 /* Release CAN from reset state */ ;;;95 RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN, DISABLE); 00000a 2100 MOVS r1,#0 00000c f04f7000 MOV r0,#0x2000000 000010 f7fffffe BL RCC_APB1PeriphResetCmd ;;;96 } 000014 bd10 POP {r4,pc} ;;;97 ENDP CAN_Init PROC ;;;107 *******************************************************************************/ ;;;108 u8 CAN_Init(CAN_InitTypeDef* CAN_InitStruct) 000016 b510 PUSH {r4,lr} ;;;109 { 000018 4601 MOV r1,r0 ;;;110 u8 InitStatus = 0; 00001a 2000 MOVS r0,#0 ;;;111 u16 WaitAck; ;;;112 ;;;113 /* Check the parameters */ ;;;114 assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_TTCM)); ;;;115 assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_ABOM)); ;;;116 assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_AWUM)); ;;;117 assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_NART)); ;;;118 assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_RFLM)); ;;;119 assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_TXFP)); ;;;120 assert_param(IS_CAN_MODE(CAN_InitStruct->CAN_Mode)); ;;;121 assert_param(IS_CAN_SJW(CAN_InitStruct->CAN_SJW)); ;;;122 assert_param(IS_CAN_BS1(CAN_InitStruct->CAN_BS1)); ;;;123 assert_param(IS_CAN_BS2(CAN_InitStruct->CAN_BS2)); ;;;124 assert_param(IS_CAN_PRESCALER(CAN_InitStruct->CAN_Prescaler)); ;;;125 ;;;126 /* Request initialisation */ ;;;127 CAN->MCR = CAN_MCR_INRQ; 00001c 2301 MOVS r3,#1 00001e 4cfa LDR r4,|L1.1032| 000020 6023 STR r3,[r4,#0] ;;;128 ;;;129 /* ...and check acknowledged */ ;;;130 if ((CAN->MSR & CAN_MSR_INAK) == 0) 000022 1d23 ADDS r3,r4,#4 000024 681b LDR r3,[r3,#0] 000026 f0030301 AND r3,r3,#1 00002a b903 CBNZ r3,|L1.46| ;;;131 { ;;;132 InitStatus = CANINITFAILED; 00002c e084 B |L1.312| |L1.46| ;;;133 } ;;;134 else ;;;135 { ;;;136 /* Set the time triggered communication mode */ ;;;137 if (CAN_InitStruct->CAN_TTCM == ENABLE) 00002e 780b LDRB r3,[r1,#0] 000030 2b01 CMP r3,#1 000032 d106 BNE |L1.66| ;;;138 { ;;;139 CAN->MCR |= CAN_MCR_TTCM; 000034 4bf4 LDR r3,|L1.1032| 000036 681b LDR r3,[r3,#0] 000038 f0430380 ORR r3,r3,#0x80 00003c 4cf2 LDR r4,|L1.1032| 00003e 6023 STR r3,[r4,#0] 000040 e005 B |L1.78| |L1.66| ;;;140 } ;;;141 else ;;;142 { ;;;143 CAN->MCR &= ~CAN_MCR_TTCM; 000042 4bf1 LDR r3,|L1.1032| 000044 681b LDR r3,[r3,#0] 000046 f0230380 BIC r3,r3,#0x80 00004a 4cef LDR r4,|L1.1032| 00004c 6023 STR r3,[r4,#0] |L1.78| ;;;144 } ;;;145 ;;;146 /* Set the automatic bus-off management */ ;;;147 if (CAN_InitStruct->CAN_ABOM == ENABLE) 00004e 784b LDRB r3,[r1,#1] 000050 2b01 CMP r3,#1 000052 d106 BNE |L1.98| ;;;148 { ;;;149 CAN->MCR |= CAN_MCR_ABOM; 000054 4bec LDR r3,|L1.1032| 000056 681b LDR r3,[r3,#0] 000058 f0430340 ORR r3,r3,#0x40 00005c 4cea LDR r4,|L1.1032| 00005e 6023 STR r3,[r4,#0] 000060 e005 B |L1.110| |L1.98| ;;;150 } ;;;151 else ;;;152 { ;;;153 CAN->MCR &= ~CAN_MCR_ABOM; 000062 4be9 LDR r3,|L1.1032| 000064 681b LDR r3,[r3,#0] 000066 f0230340 BIC r3,r3,#0x40 00006a 4ce7 LDR r4,|L1.1032| 00006c 6023 STR r3,[r4,#0] |L1.110| ;;;154 } ;;;155 ;;;156 /* Set the automatic wake-up mode */ ;;;157 if (CAN_InitStruct->CAN_AWUM == ENABLE) 00006e 788b LDRB r3,[r1,#2] 000070 2b01 CMP r3,#1 000072 d106 BNE |L1.130| ;;;158 { ;;;159 CAN->MCR |= CAN_MCR_AWUM; 000074 4be4 LDR r3,|L1.1032| 000076 681b LDR r3,[r3,#0] 000078 f0430320 ORR r3,r3,#0x20 00007c 4ce2 LDR r4,|L1.1032| 00007e 6023 STR r3,[r4,#0] 000080 e005 B |L1.142| |L1.130| ;;;160 } ;;;161 else ;;;162 { ;;;163 CAN->MCR &= ~CAN_MCR_AWUM; 000082 4be1 LDR r3,|L1.1032| 000084 681b LDR r3,[r3,#0] 000086 f0230320 BIC r3,r3,#0x20 00008a 4cdf LDR r4,|L1.1032| 00008c 6023 STR r3,[r4,#0] |L1.142| ;;;164 } ;;;165 ;;;166 /* Set the no automatic retransmission */ ;;;167 if (CAN_InitStruct->CAN_NART == ENABLE) 00008e 78cb LDRB r3,[r1,#3] 000090 2b01 CMP r3,#1 000092 d106 BNE |L1.162| ;;;168 { ;;;169 CAN->MCR |= CAN_MCR_NART; 000094 4bdc LDR r3,|L1.1032| 000096 681b LDR r3,[r3,#0] 000098 f0430310 ORR r3,r3,#0x10 00009c 4cda LDR r4,|L1.1032| 00009e 6023 STR r3,[r4,#0] 0000a0 e005 B |L1.174| |L1.162| ;;;170 } ;;;171 else ;;;172 { ;;;173 CAN->MCR &= ~CAN_MCR_NART; 0000a2 4bd9 LDR r3,|L1.1032| 0000a4 681b LDR r3,[r3,#0] 0000a6 f0230310 BIC r3,r3,#0x10 0000aa 4cd7 LDR r4,|L1.1032| 0000ac 6023 STR r3,[r4,#0] |L1.174| ;;;174 } ;;;175 ;;;176 /* Set the receive FIFO locked mode */ ;;;177 if (CAN_InitStruct->CAN_RFLM == ENABLE) 0000ae 790b LDRB r3,[r1,#4] 0000b0 2b01 CMP r3,#1 0000b2 d106 BNE |L1.194| ;;;178 { ;;;179 CAN->MCR |= CAN_MCR_RFLM; 0000b4 4bd4 LDR r3,|L1.1032| 0000b6 681b LDR r3,[r3,#0] 0000b8 f0430308 ORR r3,r3,#8 0000bc 4cd2 LDR r4,|L1.1032| 0000be 6023 STR r3,[r4,#0] 0000c0 e005 B |L1.206| |L1.194| ;;;180