EV-LM3S811 port at 20MHz instead of 50MHz

nobody wrote on Friday, October 27, 2006:

Got the FreeRTOS port for the EV-LM3S811 working right out of the box! Amazing!  I added a blinking LED task with no troubles, after reading through the excellent docs on the web site.

I noticed that the hardware initialization routine prvSetupHardware() sets the system clock to run at 20MHz by using the SYSCTL_SYSDIV_10 prescaler.  Using SYSCTL_SYSDIV_4 would give 50MHz operation.  I tried it and of course it’s not that simple.  I suspect the timing of the OLED must be adjusted somehow - nothing appears on the display.

Just thought I’d ask.


nobody wrote on Friday, October 27, 2006:

The latest FreeRTOS download includes an updated driver for the display.  Maybe that would help unless you are already using the V4.1.2 download?