Open JJGR93 opened 3 years ago
Hi, first of all thank you for your work!
I've been researching and trying to make both Sd and MCP2515 work fine. The issue is that I must call function sd.begin everytime before reading from CAN, or CAN won't work.
Using SHARED_SPI.
Simplified code:
#include "mcp_can.h" #include "SdFat.h" ExFile file; SdExFat sd; MCP_CAN CAN(10); void setup() { Serial.begin(115200); initSD(); initCANBUS(); } void loop() { readCANBUS(); saveSD(); initSD(); //THIS MUST BE CALLED OR NEXT readCANBUS() wont work. } void initSD() { sd.begin(53, SD_SCK_MHZ(16)); } void saveSD() { file = sd.open("test", FILE_WRITE); if (file) { file.print("test"); file.close(); } } void initCANBUS() { while (CAN_OK != CAN.begin(MCP_ANY, CAN_250KBPS, MCP_8MHZ)) { delay(100); } CAN.setMode(MCP_NORMAL); } void readCANBUS() { //... }
Hi, first of all thank you for your work!
I've been researching and trying to make both Sd and MCP2515 work fine. The issue is that I must call function sd.begin everytime before reading from CAN, or CAN won't work.
Using SHARED_SPI.
Simplified code: