Maxim Integrated
mbed code for MAXREFDES131 Qt GUI demo
Dependencies: OWGridEye OneWire mbed
Diff: maxrefdes131_demo.cpp
- Revision:
- 0:bd523ea97465
- Child:
- 4:7c61c45e12ee
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/maxrefdes131_demo.cpp Thu Jul 21 23:12:13 2016 +0000
@@ -0,0 +1,246 @@
+/**********************************************************************
+* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+* OTHER DEALINGS IN THE SOFTWARE.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+**********************************************************************/
+
+
+#include "maxrefdes131_demo.h"
+
+
+//*********************************************************************
+void print_rom_id(Serial & comms, RomId & romId)
+{
+ //print the rom number
+ for(uint8_t idx = 0; idx < RomId::byteLen; idx++)
+ {
+ comms.printf("0x%2x ", romId[idx]);
+ }
+ comms.printf("\n");
+}
+
+
+//*********************************************************************
+uint8_t init_sensor_state(OneWireMaster & owm, Serial & comms)
+{
+ OneWireMaster::CmdResult ow_result = owm.OWReset();
+ SearchState search_state;
+ MultidropRomIterator selector(owm);
+
+ DS2413 * p_ow_switch;
+
+ uint8_t num_sensors = 0;
+ uint8_t num_sensors_old = 0;
+
+ if(ow_result == OneWireMaster::Success)
+ {
+ /*this loop will run at least twice. Each time a branch is closed
+ OWFirst is called in order to make sure all sensors are found.
+ When num_sensors == num_sensors_old, all sensors should have been found
+ */
+ do
+ {
+ num_sensors_old = num_sensors;
+ num_sensors = 0;
+
+ ow_result = OWFirst(owm, search_state);
+
+ while(ow_result == OneWireMaster::Success)
+ {
+ if(search_state.romId.familyCode() == OWGridEye::DS2413_FAMILY_CODE)
+ {
+ num_sensors++;
+
+ p_ow_switch = new DS2413(selector);
+
+ p_ow_switch->setRomId(search_state.romId);
+
+ p_ow_switch->pioAccessWriteChAB(0);
+
+ delete p_ow_switch;
+ }
+
+ ow_result = OWNext(owm, search_state);
+ }
+ }
+ while(num_sensors > num_sensors_old);
+
+ //Disconnect all branches and GridEYE sensors for proper enumeration
+ if(num_sensors > 0)
+ {
+ //set all sensors to default state
+ uint8_t write_val = 0xFD;
+ uint8_t send_block[] = {0x5A, write_val, ~write_val};
+
+ //ow_result = OWOverdriveSkipRom(owm);
+ ow_result = OWSkipRom(owm);
+ if(ow_result == OneWireMaster::Success)
+ {
+ ow_result = owm.OWWriteBlock(send_block, 3);
+ }
+
+ if(ow_result != OneWireMaster::Success)
+ {
+ comms.printf("MBED: Failed to init sensors\n");
+ }
+ }
+ }
+
+ return num_sensors;
+}
+
+
+//*********************************************************************
+uint8_t enumerate_sensors(Serial & comms, OneWireMaster & owm, RandomAccessRomIterator & selector, OWGridEye * array[])
+{
+ OWGridEye * p_sensor;
+ OWGridEye::CmdResult sensor_result;
+
+ RomId temp_rom;
+
+ uint8_t num_sensors = 0;
+ uint8_t num_sensors_old = 0;
+
+ uint8_t array_idx = 0;
+
+ uint8_t idx;
+
+ bool sensor_exists = false;
+
+ OneWireMaster::CmdResult ow_result = owm.OWReset();
+ SearchState search_state;
+
+ if(ow_result == OneWireMaster::Success)
+ {
+ do
+ {
+ num_sensors_old = num_sensors;
+ num_sensors = 0;
+
+ ow_result = OWFirst(owm, search_state);
+
+ while(ow_result == OneWireMaster::Success)
+ {
+ num_sensors++;
+
+ if(search_state.romId.familyCode() == OWGridEye::DS2413_FAMILY_CODE)
+ {
+ //check if sensor already exists
+ sensor_exists = false;
+ for(idx = 0; idx < array_idx; idx++)
+ {
+ p_sensor = array[idx];
+
+ if(p_sensor->getOWSwitchRomId() == search_state.romId)
+ {
+ sensor_exists = true;
+ }
+ }
+
+ //if sensor doesn't already exist add to array
+ if(!sensor_exists)
+ {
+ p_sensor = new OWGridEye(selector);
+
+ p_sensor->setOWSwitchRomId(search_state.romId);
+
+ sensor_result = p_sensor->connectGridEye();
+ if(sensor_result == OWGridEye::Success)
+ {
+ search_state.findFamily(OWGridEye::DS28E17_FAMILY_CODE);
+ ow_result = OWNext(owm, search_state);
+ if(ow_result == OneWireMaster::Success)
+ {
+ p_sensor->setI2CBridgeRomId(search_state.romId);
+
+ array[array_idx++] = p_sensor;
+
+ comms.printf("MBED: DS2413 romId = ");
+ temp_rom = p_sensor->getOWSwitchRomId();
+ print_rom_id(comms,temp_rom);
+ comms.printf("MBED: DS28E17 romId = ");
+ temp_rom = p_sensor->getI2CBridgeRomId();
+ print_rom_id(comms, temp_rom);
+
+ sensor_result = p_sensor->disconnectGridEye();
+ if(sensor_result == OWGridEye::OpFailure)
+ {
+ comms.printf("MBED: Failed to disconnect sensor\n");
+ mbed_die();
+ }
+
+ sensor_result = p_sensor->connectOWbus();
+ if(sensor_result == OWGridEye::OpFailure)
+ {
+ comms.printf("MBED: Failed to connect ow branch %d\n", array_idx);
+ mbed_die();
+ }
+ }
+ else
+ {
+ comms.printf("MBED: Failed to find DS28E17\n", array_idx);
+ }
+ }
+ else
+ {
+ comms.printf("MBED: Failed to connect GridEye\n", array_idx);
+ }
+ }
+ }
+
+ ow_result = OWNext(owm, search_state);
+ }
+ }
+ while(num_sensors > num_sensors_old);
+ }
+
+
+ return array_idx;
+}
+
+
+//*********************************************************************
+void send_data(Serial & comms, float * data_buffer, float therm_temp)
+{
+ comms.printf("DATA: ");
+ wait_us(1000);
+ for(uint8_t idx = 0; idx < 64; idx++)
+ {
+ comms.printf("%.3f ", data_buffer[idx]);
+ wait_us(1000);
+
+ if(((idx+1) % 8) == 0)
+ {
+ comms.printf("\nDATA: ");
+ wait_us(1000);
+ }
+ }
+ comms.printf("%.3f \n", therm_temp);
+ wait_us(1000);
+}