When debugging RM48L952, we face the problems as below
When using SCI2 in LIN/SCI interface, sending/receiving interrupt can’t be used. What’s the reason and how to fix the problem
How to use multi-function pin(such as MIBSPIi) as a GPIO(how to set up in software.)
Hello Reid,
The SCI/LIN module has two interrupt lines, level 0 and level 1, to the vectored interrupt manager (VIM) module. Two offset registers SCIINTVECT0 and SCIINTVECT1 determine which flag triggered the interrupt according to the respective priority encoders. Each interrupt condition has a bit to
When using SCI2 in LIN/SCI interface, sending/receiving interrupt can’t be used. What’s the reason and how to fix the problem
enable/disable the interrupt in the SCISETINT and SCICLRINT registers respectively.
It is much easier to use HALCoGen to enable those interrupts:
1. Enable SCI TX and RX interrupt, and select Levl 0 or Level 1
2. Enable SCI2/LIN interrupt (VIM channel 13, high level), and select IRQ
3. The HALCoGen will generate the interrupt service routine
4. Enable IRQ in your main() function
_enable_IRQ();
How to use multi-function pin(such as MIBSPIi) as a GPIO(how to set up in software.)
All of the SPI pins may be programmed via the SPIPCx control registers to be either functional or general purpose I/O pins.
SPIPC0: configure the SPI pins as functional pins or GPIO pins
SPIPC1: If used as GPIO pins, this register is used to configure the pins as input or output ----- similar to GIODIR
SPIPC2: If used as GPIO, acts as data in ----- similar to GIODIN
SPIPC2: If used as GPIO, it acts as data out ----- similar to GIODOUT
