dani/CommandStation-EX
1
0
Fork 0
mirror of https://github.com/DCC-EX/CommandStation-EX.git synced 2025-07-28 09:53:45 +02:00
Code Releases Activity

variable frequency step #1

Browse Source
This commit is contained in:
Harald Barth
2023-12-30 21:23:44 +01:00
parent bd44184f57
commit adb8b56c92
5 changed files with 115 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
DCCTimerSTM32.cpp
View File

@@ -257,6 +257,19 @@ void DCCTimer::reset() {
while(true) {};
}
void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
if (f >= 16)
DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, f);
else if (f >= 3)
DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 62500);
else if (f == 2)
DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 3400);
else if (f == 1)
DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 480);
else
DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 131);
}
// TODO: rationalise the size of these... could really use sparse arrays etc.
static HardwareTimer * pin_timer[100] = {0};
static uint32_t channel_frequency[100] = {0};
@@ -267,7 +280,7 @@ static uint32_t pin_channel[100] = {0};
// sophisticated about detecting any clash between the timer we'd like to use for PWM and the ones
// currently used for HA so they don't interfere with one another. For now we'll just make PWM
// work well... then work backwards to integrate with HA mode if we can.
void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t frequency)
void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t frequency)
{
if (pin_timer[pin] == NULL) {
// Automatically retrieve TIM instance and channel associated to pin