SDK • Re: 'clock_get_hz' was not declared in this scope

Code:

 #define PICO_CLOCK_AJDUST_PERI_CLOCK_WITH_SYS_CLOCK 1  static const uint32_t new_clk=266000; // OC266 does not cause spikes but gives more ringing on PID  uint32_t sys_clk = 0;  sys_clk = OC(new_clk);  setup_uart(); // reset after OC      if (sys_clk) // OC() failed is <=0    printf("# system clock = %d MHz\n",clock_get_hz(clk_sys)/(1000*1000)); // check: report reality  else    printf("# Setting system clock failed. clk_sys = %d kHz \n",clock_get_hz(clk_sys)/1000);     printf("# USB clock = %d MHz\n",clock_get_hz(clk_usb)/(1000*1000) );  printf("# peri clock = %d MHz\n",clock_get_hz(clk_peri)/(1000*1000) );