mirror of
https://github.com/eddyem/stm32samples.git
synced 2025-12-06 18:55:13 +03:00
116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
/*
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* This file is part of the adc project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program 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 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stm32f3.h>
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#include <string.h>
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#include "adc.h"
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#include "strfunc.h"
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#include "usb.h"
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#include "version.inc"
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//#define LOCBUFFSZ (32)
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// local buffer for I2C data to send
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//static uint8_t locBuffer[LOCBUFFSZ];
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extern volatile uint32_t Tms;
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volatile uint8_t ADCmon = 0;
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const char *helpstring =
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"https://github.com/eddyem/stm32samples/tree/master/F3:F303/I2C_scan build#" BUILD_NUMBER " @ " BUILD_DATE "\n"
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"A - get ADC values\n"
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"dx - change DAC current value to x\n"
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"m - monitor ADC on/off\n"
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"t - MCU temperature\n"
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"T - print current Tms\n"
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"v - Vdd\n"
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;
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/*
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// read N numbers from buf, @return 0 if wrong or none
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TRUE_INLINE uint16_t readNnumbers(const char *buf){
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uint32_t D;
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const char *nxt;
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uint16_t N = 0;
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while((nxt = getnum(buf, &D)) && nxt != buf && N < LOCBUFFSZ){
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buf = nxt;
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locBuffer[N++] = (uint8_t) D&0xff;
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USND("add byte: "); USND(uhex2str(D&0xff)); USND("\n");
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}
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USND("Send "); USND(u2str(N)); USND(" bytes\n");
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return N;
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}
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*/
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TRUE_INLINE const char *DAC_chval(const char *buf){
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uint32_t D;
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const char *nxt = getnum(buf, &D);
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if(!nxt || nxt == buf || D > 4095) return "Wrong DAC amplitude\n";
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DAC1->DHR12R1 = D;
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return "OK";
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}
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void printADCvals(){
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USB_sendstr("AIN0: "); USB_sendstr(u2str(getADCval(ADC_AIN0)));
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USB_sendstr(" ("); USB_sendstr(float2str(getADCvoltage(ADC_AIN0), 2));
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USB_sendstr(" V)\nAIN1: "); USB_sendstr(u2str(getADCval(ADC_AIN1)));
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USB_sendstr(" ("); USB_sendstr(float2str(getADCvoltage(ADC_AIN1), 2));
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USB_sendstr(" V)\nAIN5: "); USB_sendstr(u2str(getADCval(ADC_AIN5)));
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USB_sendstr(" ("); USB_sendstr(float2str(getADCvoltage(ADC_AIN5), 2));
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USB_sendstr(" V)\nTS: ");
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USB_sendstr(u2str(getADCval(ADC_TS)));
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USB_sendstr("\nVREF: ");
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USB_sendstr(u2str(getADCval(ADC_VREF)));
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newline();
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}
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const char *parse_cmd(const char *buf){
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// "long" commands
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switch(*buf){
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case 'd':
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return DAC_chval(buf + 1);
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break;
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}
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// "short" commands
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if(buf[1]) return buf; // echo wrong data
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switch(*buf){
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case 'A':
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printADCvals();
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break;
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case 'm':
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ADCmon = !ADCmon;
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USB_sendstr("Monitoring is ");
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if(ADCmon) USB_sendstr("on\n");
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else USB_sendstr("off\n");
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break;
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case 't':
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return float2str(getMCUtemp(), 2);
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break;
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case 'T':
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USB_sendstr("T=");
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USB_sendstr(u2str(Tms));
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newline();
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break;
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case 'v':
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return float2str(getVdd(), 2);
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break;
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default: // help
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USB_sendstr(helpstring);
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break;
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}
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return NULL;
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}
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