raspiezo / Nucleo_L432KC_Quadrature_Decoder_with_ADC_and_DAC

A program to monitor some parameters for a motor

Dependencies:   mbed-dev BufferSerial

Thanks to David Lowe for https://developer.mbed.org/users/gregeric/code/Nucleo_Hello_Encoder/ which I adapted for the use of TIM2 32bit timer as an encoder reader on the Nucleo L432KC board.

Encoder/EncoderInit.cpp@23:5cd74e296f59, 2017-06-22 (annotated)

Committer:
tonnyleonard
Date:
Thu Jun 22 10:41:57 2017 +0000
Revision:
23:5cd74e296f59
Parent:
2:958e9094b198 
Correct adc2 calibration offset and the dac1 calibration factor and offset, remove some junk comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tonnyleonard 0:789510d98ade 1 #include "mbed.h"
tonnyleonard 0:789510d98ade 2
tonnyleonard 0:789510d98ade 3 void EncoderInit(TIM_Encoder_InitTypeDef * encoder, TIM_HandleTypeDef * timer, TIM_TypeDef * TIMx, uint32_t maxcount, uint32_t encmode)
tonnyleonard 0:789510d98ade 4 {
tonnyleonard 0:789510d98ade 5
tonnyleonard 0:789510d98ade 6 timer->Instance = TIMx;
tonnyleonard 0:789510d98ade 7 timer->Init.Period = maxcount;
tonnyleonard 0:789510d98ade 8 timer->Init.CounterMode = TIM_COUNTERMODE_UP;
tonnyleonard 0:789510d98ade 9 timer->Init.Prescaler = 0;
tonnyleonard 0:789510d98ade 10 timer->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
tonnyleonard 0:789510d98ade 11
tonnyleonard 0:789510d98ade 12 encoder->EncoderMode = encmode;
tonnyleonard 0:789510d98ade 13
tonnyleonard 2:958e9094b198 14 encoder->IC1Filter = 0x05;
tonnyleonard 0:789510d98ade 15 encoder->IC1Polarity = TIM_INPUTCHANNELPOLARITY_RISING;
tonnyleonard 0:789510d98ade 16 encoder->IC1Prescaler = TIM_ICPSC_DIV4;
tonnyleonard 0:789510d98ade 17 encoder->IC1Selection = TIM_ICSELECTION_DIRECTTI;
tonnyleonard 0:789510d98ade 18
tonnyleonard 2:958e9094b198 19 encoder->IC2Filter = 0x05;
tonnyleonard 0:789510d98ade 20 encoder->IC2Polarity = TIM_INPUTCHANNELPOLARITY_FALLING;
tonnyleonard 0:789510d98ade 21 encoder->IC2Prescaler = TIM_ICPSC_DIV4;
tonnyleonard 0:789510d98ade 22 encoder->IC2Selection = TIM_ICSELECTION_DIRECTTI;
tonnyleonard 0:789510d98ade 23
tonnyleonard 0:789510d98ade 24
tonnyleonard 0:789510d98ade 25 if (HAL_TIM_Encoder_Init(timer, encoder) != HAL_OK) {
tonnyleonard 0:789510d98ade 26 printf("Couldn't Init Encoder\r\n");
tonnyleonard 0:789510d98ade 27 while (1) {}
tonnyleonard 0:789510d98ade 28 }
tonnyleonard 0:789510d98ade 29
tonnyleonard 0:789510d98ade 30 if(HAL_TIM_Encoder_Start(timer,TIM_CHANNEL_1)!=HAL_OK) {
tonnyleonard 0:789510d98ade 31 printf("Couldn't Start Encoder\r\n");
tonnyleonard 0:789510d98ade 32 while (1) {}
tonnyleonard 0:789510d98ade 33 }
tonnyleonard 0:789510d98ade 34 }
tonnyleonard 0:789510d98ade 35