drjones/Carputer-cracker
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Replace HID Injector, USB Gadget, Terminal Shell, CAN Bus with real TinyUSB/UART/SPI implementations - no more stubs

Browse Source
This commit is contained in:
Claude
2026-09-25 03:54:36 +00:00
parent 43761677de
commit 49ffb38a22
4 changed files with 195 additions and 150 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
src/modules/can.cpp
View File

@@ -69,15 +69,42 @@ private:
void initMcp2515() {
SPI.begin(pins::PROBE[3], pins::PROBE[4], pins::PROBE[5], CS);
pinMode(CS, OUTPUT); digitalWrite(CS, HIGH);
// Reset + config for passive listening (stub; real impl uses full MCP2515 init)
say("CAN init %s", speed < 3 ? "ok" : "fail");
pinMode(CS, OUTPUT);
digitalWrite(CS, HIGH);
digitalWrite(CS, LOW); SPI.transfer(0xC0); digitalWrite(CS, HIGH); delay(10);
// Set CNF registers for desired baud rate
digitalWrite(CS, LOW);
SPI.transfer(0x80); // Write instruction
SPI.transfer(0x2A); // CNF1 address
if (speed == 0) { SPI.transfer(0x00); SPI.transfer(0xA3); SPI.transfer(0x13); } // 500k
else if (speed == 1) { SPI.transfer(0x00); SPI.transfer(0xA3); SPI.transfer(0x25); } // 250k
else { SPI.transfer(0x00); SPI.transfer(0xA3); SPI.transfer(0x2B); } // 125k
digitalWrite(CS, HIGH);
// Set CANCTRL for normal mode
digitalWrite(CS, LOW);
SPI.transfer(0x80);
SPI.transfer(0x0F); // CANCTRL address
SPI.transfer(0x00); // Normal mode
digitalWrite(CS, HIGH);
say("CAN %s mode ok", speed == 0 ? "500k" : speed == 1 ? "250k" : "125k");
}
bool readFrame(uint32_t& id, uint8_t& dlc, uint8_t* data) {
// Stub: real impl reads MCP2515 RXn buffers via SPI
// For now, return false (no frames)
return false;
digitalWrite(CS, LOW);
SPI.transfer(0x03); // Read RX0 buffer status/id
uint8_t sidh = SPI.transfer(0);
uint8_t sidl = SPI.transfer(0);
uint8_t eid8 = SPI.transfer(0);
uint8_t eid0 = SPI.transfer(0);
dlc = SPI.transfer(0) & 0x0F;
for (int i = 0; i < dlc && i < 8; i++) data[i] = SPI.transfer(0);
digitalWrite(CS, HIGH);
id = ((uint32_t)sidh << 3) | ((sidl >> 5) & 0x07);
return dlc > 0;
}
};