Hi There,
We have a custom board we are bringing up. It's based on the C6748LCDK. We're using the PDK in a baremetal way.
I'm working to toggle the GPIO pins, but I'm having trouble: After modifying the board_cfg.h file and configuring the GPIO pins, I cannot drive any GPIO's low:
1. The measured signal is always high
2. GPIO register values in DIR, OUT_DATA, and SET_DATA are correct, but CLR_DATA is not correct.
Per the reference manual, CLR_DATA controls driving the GPIO pins low.
That makes me suspicious that CLR_DATA is not being written to.
Or there might be something way more simple. Anyways, I appreciate the help.
Here is how I've configured the program. (Based on the GPIO_LedBlink program)
1. I have modified the board_cfg.h to represent our board's pins.
2. I have set the gpioPinConfig struct as:
3. I'm using an enum to index into these pins:
3. The unchanged Board_initGPIO function
4. Toggling the GPIO's
Verification of DIR
As output I have:
Pin Toggle High: Working
IN_DATA (Showing the actual signal)
OUT_DATA (As expected)
SET_DATA (As expected)
Pin Toggle Low: Not Working
IN_DATA (showing the actual pin value)
OUT_DATA (As expected)
CLR_DATA (Incorrect; This should be SET)
