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ringbuffer and device detection to USB-CAN-relay

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This commit is contained in:
Edward Emelianov
2024-08-02 11:58:40 +03:00
parent 9470b22c88
commit 0cb9b5f3c8
30 changed files with 1440 additions and 733 deletions
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40
F0:F030,F042,F072/usbcan_relay/can.c
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@@ -20,6 +20,7 @@
#include "canproto.h"
#include "hardware.h"
#include "proto.h"
#include "usb.h"
#include <string.h> // memcpy
@@ -107,6 +108,7 @@ void CAN_setup(uint16_t speed){
else if(speed > 3000) speed = 3000;
oldspeed = speed;
uint32_t tmout = 16000000;
DBG("Start CAN ini");
// Configure GPIO: PB8 - CAN_Rx, PB9 - CAN_Tx
/* (1) Select AF mode (10) on PB8 and PB9 */
/* (2) AF4 for CAN signals */
@@ -129,8 +131,12 @@ void CAN_setup(uint16_t speed){
tmout = 16000000;
while((CAN->MSR & CAN_MSR_INAK) == CAN_MSR_INAK){ // Wait the init mode leaving
IWDG->KR = IWDG_REFRESH;
if(--tmout == 0) break;
if(--tmout == 0){
DBG("Can't enter CAN INIT mode");
break;
}
}
DBG("CAN initing");
// accept self ID at filter 0, ALL other at filters 1 and 2
CAN->FMR = CAN_FMR_FINIT;
CAN->FA1R = CAN_FA1R_FACT0 | CAN_FA1R_FACT1 | CAN_FA1R_FACT2;
@@ -147,14 +153,15 @@ void CAN_setup(uint16_t speed){
NVIC_SetPriority(CEC_CAN_IRQn, 0);
NVIC_EnableIRQ(CEC_CAN_IRQn);
can_status = CAN_READY;
DBG("CAN ready");
}
void can_proc(){
#ifdef EBUG
if(last_err_code){
MSG("Error, ESR=");
USB_sendstr("Error, ESR=");
printu(last_err_code);
NL();
newline();
last_err_code = 0;
}
#endif
@@ -167,12 +174,12 @@ void can_proc(){
}
IWDG->KR = IWDG_REFRESH;
if(CAN->ESR & (CAN_ESR_BOFF | CAN_ESR_EPVF | CAN_ESR_EWGF)){ // much errors - restart CAN BUS
SEND("\nToo much errors, restarting CAN!\n");
SEND("Receive error counter: ");
USND("\nToo much errors, restarting CAN!");
USB_sendstr("Receive error counter: ");
printu((CAN->ESR & CAN_ESR_REC)>>24);
SEND("\nTransmit error counter: ");
USB_sendstr("\nTransmit error counter: ");
printu((CAN->ESR & CAN_ESR_TEC)>>16);
SEND("\nLast error code: ");
USB_sendstr("\nLast error code: ");
int lec = (CAN->ESR & CAN_ESR_LEC) >> 4;
const char *errmsg = "No";
switch(lec){
@@ -184,11 +191,10 @@ void can_proc(){
case 6: errmsg = "CRC"; break;
case 7: errmsg = "(set by software)"; break;
}
SEND(errmsg); SEND(" error\n");
if(CAN->ESR & CAN_ESR_BOFF) SEND("Bus off");
if(CAN->ESR & CAN_ESR_EPVF) SEND("Passive error limit");
if(CAN->ESR & CAN_ESR_EWGF) SEND("Error counter limit");
NL();
USB_sendstr(errmsg); USND(" error\n");
if(CAN->ESR & CAN_ESR_BOFF) USND("Bus off");
if(CAN->ESR & CAN_ESR_EPVF) USND("Passive error limit");
if(CAN->ESR & CAN_ESR_EWGF) USND("Error counter limit");
IWDG->KR = IWDG_REFRESH;
// request abort for all mailboxes
CAN->TSR |= CAN_TSR_ABRQ0 | CAN_TSR_ABRQ1 | CAN_TSR_ABRQ2;
@@ -214,13 +220,13 @@ CAN_status can_send(uint8_t *msg, uint8_t len, uint16_t target_id){
return CAN_BUSY;
}
#ifdef EBUG
MSG("Send data. Len="); printu(len);
SEND(", tagid="); printuhex(target_id);
SEND(", data=");
USB_sendstr("Send data. Len="); printu(len);
USB_sendstr(", tagid="); printuhex(target_id);
USB_sendstr(", data=");
for(int i = 0; i < len; ++i){
SEND(" "); printuhex(msg[i]);
USB_sendstr(" "); printuhex(msg[i]);
}
NL();
newline();
#endif
CAN_TxMailBox_TypeDef *box = &CAN->sTxMailBox[mailbox];
uint32_t lb = 0, hb = 0;