diff options
Diffstat (limited to 'arcin/main.cpp')
| -rw-r--r-- | arcin/main.cpp | 60 |
1 files changed, 54 insertions, 6 deletions
diff --git a/arcin/main.cpp b/arcin/main.cpp index 7fc3902..549ea35 100644 --- a/arcin/main.cpp +++ b/arcin/main.cpp @@ -2,6 +2,7 @@ #include <gpio/gpio.h> #include <interrupt/interrupt.h> #include <timer/timer.h> +#include <adc/adc_f3.h> #include <os/time.h> #include <usb/usb.h> #include <usb/descriptor.h> @@ -189,9 +190,50 @@ class QEAxis : public Axis { QEAxis axis_qe1(TIM2); QEAxis axis_qe2(TIM3); +class AnalogAxis : public Axis { + private: + ADC_t& adc; + uint32_t ch; + + public: + AnalogAxis(ADC_t& a, uint32_t c) : adc(a), ch(c) {} + + void enable() { + // Turn on ADC regulator. + adc.CR = 0 << 28; + adc.CR = 1 << 28; + Time::sleep(2); + + // Calibrate ADC. + // TODO + + // Configure continous capture on one channel. + adc.CFGR = (1 << 13) | (1 << 12) | (1 << 5); // CONT, OVRMOD, ALIGN + adc.SQR1 = (ch << 6); + + // Enable ADC. + adc.CR |= 1 << 0; // ADEN + while(!(adc.ISR & (1 << 0))); // ADRDY + adc.ISR = (1 << 0); // ADRDY + + // Start conversion. + adc.CR |= 1 << 2; // ADSTART + } + + virtual uint32_t get() final { + return adc.DR >> 8; + } +}; + +AnalogAxis axis_ana1(ADC1, 2); +AnalogAxis axis_ana2(ADC2, 4); + int main() { rcc_init(); + // Set ADC12PRES to /1. + RCC.CFGR2 |= (0x10 << 4); + // Initialize system timer. STK.LOAD = 72000000 / 8 / 1000; // 1000 Hz. STK.CTRL = 0x03; @@ -228,10 +270,13 @@ int main() { Axis* axis_1; - if(0) { - // TODO: Analog mode. + if(1) { + RCC.enable(RCC.ADC12); + + axis_ana1.enable(); + + axis_1 = &axis_ana1; - //axis_1 = &ana_1; } else { RCC.enable(RCC.TIM2); @@ -247,10 +292,13 @@ int main() { Axis* axis_2; - if(0) { - // TODO: Analog mode. + if(1) { + RCC.enable(RCC.ADC12); + + axis_ana2.enable(); + + axis_2 = &axis_ana2; - //axis_2 = &ana_2; } else { RCC.enable(RCC.TIM3); |