Re: PIC18F4550 - SPI - MCP2515 baud rate
☼ Best Answerby danbakana 2019/07/23 10:29:05
Fosc is the CPU clock, whether from external, internal, PLL, whatever.
At 48MHz (max Fosc), Fosc/4 is 12MHz for SPI clock. It might be difficult to sustain 12Mbps because there are only 8 instruction cycles (Instruction clock is fixed at Fosc/4) per byte at that rate, but certainly more than 1Mbps.
I've not looked closely at the MCP2515 datasheet, but the SPI and CAN bit rates are surely independent.