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Resolve the busheavy issue when the ESP32 chip revision >=2 #48

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Resolve the busheavy issue when the ESP32 chip revision >=2 #48

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9 changes: 9 additions & 0 deletions src/CAN.c
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
*
*/

#include "esp_system.h"
#include "CAN.h"

#include "freertos/FreeRTOS.h"
Expand Down Expand Up @@ -228,6 +229,14 @@ int CAN_init() {
// enable all interrupts
MODULE_CAN->IER.U = 0xff;

esp_chip_info_t chip_info;
esp_chip_info(&chip_info);
if(chip_info.revision >=2){
// disable wake-up interrupt
// refer to https://github.com/sandeepmistry/arduino-CAN/issues/75 for the original information
MODULE_CAN->IER.B.WUIE = 0x0;
}

// Set acceptance filter
MODULE_CAN->MOD.B.AFM = __filter.FM;
MODULE_CAN->MBX_CTRL.ACC.CODE[0] = __filter.ACR0;
Expand Down