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@@ -1,292 +0,0 @@
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/*
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* Copyright (C) 2009 Antoine Drouin <poinix@gmail.com>
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*
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* This file is part of paparazzi.
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*
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* paparazzi is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* paparazzi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with paparazzi; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* lisa/L lisa/M
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* ACC_DRDY PD2 PB2
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* ACC_SS PB12 PB12
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*
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*/
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#include <libopencm3/stm32/f1/gpio.h>
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#include <libopencm3/stm32/exti.h>
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#include <libopencm3/stm32/spi.h>
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#include BOARD_CONFIG
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#include "mcu.h"
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#include "mcu_periph/sys_time.h"
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#include "subsystems/datalink/downlink.h"
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#include "peripherals/adxl345.h"
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#include "my_debug_servo.h"
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#include "led.h"
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static inline void main_init( void );
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static inline void main_periodic_task( void );
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static inline void main_event_task( void );
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static inline void main_init_hw(void);
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int main(void) {
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main_init();
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while(1) {
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if (sys_time_check_and_ack_timer(0))
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main_periodic_task();
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main_event_task();
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}
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return 0;
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}
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static inline void main_init( void ) {
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mcu_init();
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sys_time_register_timer((1./PERIODIC_FREQUENCY), NULL);
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main_init_hw();
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}
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static void write_to_reg(uint8_t addr, uint8_t val);
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static uint8_t read_fom_reg(uint8_t addr);
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#define CONFIGURED 6
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static uint8_t acc_status=0;
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static volatile uint8_t acc_ready_for_read = FALSE;
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static uint8_t values[6];
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#define AccUnselect() GPIOB->BSRR = GPIO_Pin_12
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#define AccSelect() GPIOB->BRR = GPIO_Pin_12
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#define AccToggleSelect() GPIOB->ODR ^= GPIO_Pin_12
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static void write_to_reg(uint8_t addr, uint8_t val) {
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#warning "Needs porting to libopencm3 or use the real driver!"
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#if 0
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AccSelect();
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SPI_I2S_SendData(SPI2, addr);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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SPI_I2S_SendData(SPI2, val);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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AccUnselect();
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#endif
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}
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static uint8_t read_fom_reg(uint8_t addr) {
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#warning "Needs porting to libopencm3 or use the real driver!"
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#if 0
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AccSelect();
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SPI_I2S_SendData(SPI2, (1<<7|addr));
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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uint8_t ret = SPI_I2S_ReceiveData(SPI2);
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AccUnselect();
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#endif
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return ret;
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}
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static void read_data(void) {
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#warning "Needs porting to libopencm3 or use the real driver!"
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#if 0
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AccSelect();
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SPI_I2S_SendData(SPI2, (1<<7|1<<6|ADXL345_REG_DATA_X0));
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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uint8_t __attribute__ ((unused)) foo = SPI_I2S_ReceiveData(SPI2);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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values[0] = SPI_I2S_ReceiveData(SPI2);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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values[1] = SPI_I2S_ReceiveData(SPI2);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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values[2] = SPI_I2S_ReceiveData(SPI2);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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values[3] = SPI_I2S_ReceiveData(SPI2);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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values[4] = SPI_I2S_ReceiveData(SPI2);
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SPI_I2S_SendData(SPI2, 0x00);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
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while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
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values[5] = SPI_I2S_ReceiveData(SPI2);
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AccUnselect();
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#endif
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}
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static inline void main_periodic_task( void ) {
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RunOnceEvery(10,
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{
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DOWNLINK_SEND_ALIVE(DefaultChannel, DefaultDevice, 16, MD5SUM);
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LED_PERIODIC();
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});
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switch (acc_status) {
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case 1:
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{
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/* read data rate */
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// uint8_t bar = read_fom_reg(ADXL345_REG_BW_RATE);
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}
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/* set data rate to 800Hz */
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write_to_reg(ADXL345_REG_BW_RATE, 0x0D);
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break;
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case 2:
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/* switch to measurememnt mode */
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write_to_reg(ADXL345_REG_POWER_CTL, 1<<3);
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break;
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case 3:
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/* enable data ready interrupt */
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write_to_reg(ADXL345_REG_INT_ENABLE, 1<<7);
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break;
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case 4:
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/* Enable full res and interrupt active low */
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write_to_reg(ADXL345_REG_DATA_FORMAT, 1<<3|1<<5);
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break;
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case 5:
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/* reads data once to bring interrupt line up */
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read_data();
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break;
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case CONFIGURED:
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// read_data();
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break;
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default:
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break;
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}
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if (acc_status < CONFIGURED) acc_status++;
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}
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static inline void main_event_task( void ) {
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if (acc_status >= CONFIGURED && acc_ready_for_read) {
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read_data();
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acc_ready_for_read = FALSE;
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int32_t iax = *((int16_t*)&values[0]);
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int32_t iay = *((int16_t*)&values[2]);
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int32_t iaz = *((int16_t*)&values[4]);
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RunOnceEvery(10, {DOWNLINK_SEND_IMU_ACCEL_RAW(DefaultChannel, DefaultDevice, &iax, &iay, &iaz);});
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}
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}
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static inline void main_init_hw( void ) {
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#warning "Needs porting to libopencm3 or use the real driver!"
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#if 0
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/* configure acc slave select */
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/* set acc slave select as output and assert it ( on PB12) */
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AccUnselect();
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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/* configure external interrupt exti2 on P(B/D)2( accel int ) */
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RCC_APB2PeriphClockCmd(IMU_ACC_DRDY_RCC_GPIO | RCC_APB2Periph_AFIO, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(IMU_ACC_DRDY_GPIO, &GPIO_InitStructure);
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EXTI_InitTypeDef EXTI_InitStructure;
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GPIO_EXTILineConfig(IMU_ACC_DRDY_GPIO_PORTSOURCE, GPIO_PinSource2);
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EXTI_InitStructure.EXTI_Line = EXTI_Line2;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_Init(&EXTI_InitStructure);
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NVIC_InitTypeDef NVIC_InitStructure;
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NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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/* Enable SPI2 Periph clock -------------------------------------------------*/
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
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/* Configure GPIOs: SCK, MISO and MOSI --------------------------------*/
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO , ENABLE);
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SPI_Cmd(SPI2, ENABLE);
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/* configure SPI */
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SPI_InitTypeDef SPI_InitStructure;
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SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
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SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
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SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
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SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
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SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
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SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
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SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_32;
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SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
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SPI_InitStructure.SPI_CRCPolynomial = 7;
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SPI_Init(SPI2, &SPI_InitStructure);
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DEBUG_SERVO2_INIT();
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#endif
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}
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void exti2_irq_handler(void) {
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/* clear EXTI */
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exti_reset_request(EXTI2);
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//DEBUG_S4_TOGGLE();
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acc_ready_for_read = TRUE;
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}
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