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Reduce the value of the LPTMR CMR by one.

This commit is contained in:
Jonathan Naylor 2016-12-14 13:24:08 +00:00 committed by GitHub
parent 2747e2979d
commit dca6dd35dc
1 changed files with 1 additions and 1 deletions
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2
IOTeensy.cpp
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@ -131,7 +131,7 @@ void CIO::startInt()
SIM_SCGC5 |= SIM_SCGC5_LPTIMER; // Enable Low Power Timer Access SIM_SCGC5 |= SIM_SCGC5_LPTIMER; // Enable Low Power Timer Access
LPTMR0_CSR = 0; // Disable LPTMR0_CSR = 0; // Disable
LPTMR0_PSR = LPTMR_PSR_PBYP; // Bypass prescaler/filter LPTMR0_PSR = LPTMR_PSR_PBYP; // Bypass prescaler/filter
LPTMR0_CMR = EXTERNAL_OSC / 24000; LPTMR0_CMR = (EXTERNAL_OSC / 24000) - 1; // Frequency divided by CMR + 1
LPTMR0_CSR = LPTMR_CSR_TPS(2) | // Pin: 0=CMP0, 1=xtal, 2=pin13 LPTMR0_CSR = LPTMR_CSR_TPS(2) | // Pin: 0=CMP0, 1=xtal, 2=pin13
LPTMR_CSR_TMS; // Mode Select, 0=timer, 1=counter LPTMR_CSR_TMS; // Mode Select, 0=timer, 1=counter
LPTMR0_CSR |= LPTMR_CSR_TEN; // Enable LPTMR0_CSR |= LPTMR_CSR_TEN; // Enable