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fixed some errors; renew readme

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Edward Emelianov
2026-10-01 16:23:50 +03:00
parent 8200366090
commit a2cb827a76
12 changed files with 472 additions and 296 deletions
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20
F1:F103/FX3U/can.c
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@@ -100,6 +100,9 @@ MASK: FBMx=0 (CAN1->FM1R), two filters (n in FR1 and n+1 in FR2)
LIST: FBMx=1, four filters (n&n+1 in FR1, n+2&n+3 in FR2)
IDn: CAN1->sFilterRegister[x].FRn[0..15]
IDn+1: CAN1->sFilterRegister[x].FRn[16..31]
IDE == 0 for 11 bit ID, 1 for 29 bit ID
RTR == 1 for remote transmission request ("remote frame", I don't support them)
*/
/*
@@ -133,7 +136,7 @@ void CAN_setup(uint32_t speed){
/* (5) Leave init mode */
/* (6) Wait the init mode leaving */
/* (7) Enter filter init mode, (16-bit + mask, bank 0 for FIFO 0) */
/* (8) Acivate filter 0 for two IDs */
/* (8) Acivate filters 0 and 1 */
/* (9) Identifier mode for bank#0, mask mode for #1 */
/* (10) Set the Id list */
/* (12) Leave filter init */
@@ -156,17 +159,17 @@ void CAN_setup(uint32_t speed){
IWDG->KR = IWDG_REFRESH;
if(--tmout == 0) break;
}
// accept depending of monitor flag
// accept depending of monitor flag (CAN_FS1R after reset is 0, as we need for 2 16-bit filters in one reg)
CAN1->FMR = CAN_FMR_FINIT; /* (7) */
CAN1->FA1R = CAN_FA1R_FACT0; /* (8) */
CAN1->FA1R = CAN_FA1R_FACT0 | CAN_FA1R_FACT1; /* (8) */
CAN1->FM1R = CAN_FM1R_FBM0;
// filter 0 for FIFO0
CAN1->sFilterRegister[0].FR1 = the_conf.CANIDin << 5; // (10) CANIDin and 0
if(flags.can_monitor){ /* (11) */
CAN1->FA1R |= CAN_FA1R_FACT1; // activate filter1
CAN1->sFilterRegister[1].FR1 = 0; // all packets
CAN1->FFA1R = 2; // filter 1 for FIFO1
CAN1->sFilterRegister[0].FR1 = the_conf.CANIDin << 5; // (10) CANIDin + 0 (broadcast)
CAN1->sFilterRegister[1].FR1 = 0; // all packets
if(!flags.can_monitor){ /* (11) */
CAN1->FM1R = CAN_FM1R_FBM0 | CAN_FM1R_FBM1; // both in ID mode
}
CAN1->FFA1R = 2; // filter 1 for FIFO1
CAN1->FMR &= ~CAN_FMR_FINIT; /* (12) */
CAN1->IER |= CAN_IER_ERRIE | CAN_IER_FOVIE0 | CAN_IER_FOVIE1 | CAN_IER_BOFIE; /* (13) */
@@ -249,6 +252,7 @@ CAN_status CAN_send(CAN_message *message){
IWDG->KR = IWDG_REFRESH;
uint8_t *msg = message->data;
uint8_t len = message->length;
if(len > 8) len = 8;
uint16_t target_id = message->ID;
uint8_t mailbox = 0xff;
uint32_t Tstart = Tms;