Enable ADC0 pre-trigger via the LPTMR to match the PDB.

2016-12-14 09:12:59 +00:00 · 2016-12-14 09:12:59 +00:00 · 2747e2979d
parent f831b64518
commit 2747e2979d
1 changed files with 1 additions and 0 deletions
--- a/IOTeensy.cpp
+++ b/IOTeensy.cpp
@ -123,6 +123,7 @@ void CIO::startInt()
 #if defined(EXTERNAL_OSC)
  // Set ADC0 to trigger from the LPTMR at 24 kHz
  SIM_SOPT7   = SIM_SOPT7_ADC0ALTTRGEN |                              // Enable ADC0 alternate trigger
+                SIM_SOPT7_ADC0PRETRGSEL |                             // Enable ADC0 pre-trigger
                SIM_SOPT7_ADC0TRGSEL(14);                             // Trigger ADC0 by LPTMR0

  CORE_PIN13_CONFIG = PORT_PCR_MUX(3);