I have two boards similar to www.aliexpress.com/.../1862953539.html
openocd on one board shows:
Info : nRF51822-QFAA(build code: G0) 256kB Flash
and on the other it shows:
Info : nRF51822-QFAA(build code: CA/C0) 256kB Flash
CA/CO works fine with my code (efn.org/.../main.c) but GO does not work. I'm using the UART at 115200 Baud and GO is sending out char's at about 57600 Baud instead of 115.2 kBaud. Also, the radio via s110 doesn't seem to be working either. The boards appear to have a different crystal manufacturer on them, GO has one marked "sk 16.02 w", CA/CO has "16.00012" marked on it. Neither board has a 32 kHz crystal. Any help is greatly appreciated.
Rick