WiFly not working - solution....

Wireless & IoT
1

Just got a WiFly and was having problems - nothing worked inc the terminal routine. I’d just see this:

WiFly Shield Terminal Routine
Bridge initialized successfully!
?WG????77???@'?7o??w??@77??緟a???G??y?6??@g???Ƕ???0?

Turns out that the xtal has changed from a 12.288MHz to a 14.756MHz on the WiFly’s I have. You need to change the SPI-UART bridge init parameters from:

struct SPI_UART_cfg SPI_Uart_config = {
  0x50,0x00,0x03,0x10};

…to…

struct SPI_UART_cfg SPI_Uart_config = {
  0x60,0x00,0x03,0x10};

…then it’ll all work fine. Hope that helps other people who are scratching their heads… maybe this was documented somewhere but I must have missed it.

2

Thanks for your update, I’ve passed on your solution to the engineer who wrote the tutorial.

I’ll work on making the change available in the WiFly library also.

–Philip;

3

Thanks for this tip. It’s May 2012 (almost 2 years later) and I was going crazy trying to figure this out and found your posted fix. I’m surprised the code hasn’t been updated?