$10 O-Scope revisited

PIGOL.JPG

FINALLY got my screen after two months and uploaded a working version of the oscilloscope. Hooooooowever if I try to change the settings (over the Arduino serial monitor) nothing happens. Could it perhaps be that I’m usb to TTL to upload and read from the STM32STM32Микроконтроллеры и процессоры…Map magic glue code, ethernet compiles, just WARNING: library LwIP claims to run on [ stm32 ] architecture(s) and may be incompatible with your current board which runs on [STM32]…[STM32GENERIC] F429i Discovery ↗? (I’m using one that looks like this http://www.ebay.com/itm/Replace-Pl2303- … SwHaBWi4TV )

I have it hooked up to PA9 and PA10 to upload the data (and later read it), with normal sketches at least. With the oscilloskope sketch, I get nothing on the Serial monitor, but the oscilloscope itself (aka display) seems to be working properly.

I’ve only tried the original version without the rotary switches.

Does anyone know how to solve my problem? Also…should I just buy some rotary switches and hook it up that way? How’s the speed on that version (and also bugs?)

I make a ne version, changing functions with two switches (interrupt) and parameters with one rotary encoder.

I have at the moment realized it for function timeBase (=1) and yPosition(02).

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I have changed the code a liitle bit, I think there was to much code in the isr-functions.
Now the isr and the encoder-functions are smaller, I moved the tft-code on the start of the loop().

And changed the tft.text-size to 2.
And have some more functions realized !

If there are some errors, perhaps it is because of the short night (from 3 to 8)

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textsize(2) for update-fields:

STM32STM32Микроконтроллеры и процессоры…Map magic glue code, ethernet compiles, just WARNING: library LwIP claims to run on [ stm32 ] architecture(s) and may be incompatible with your current board which runs on [STM32]…[STM32GENERIC] F429i Discovery ↗_O_Scope_func_par_txt(2).JPG

STM32STM32Микроконтроллеры и процессоры…Map magic glue code, ethernet compiles, just WARNING: library LwIP claims to run on [ stm32 ] architecture(s) and may be incompatible with your current board which runs on [STM32]…[STM32GENERIC] F429i Discovery ↗_O_Scope_func_par_txt(2).JPG (117.72 KiB) Viewed 1379 times

Happy New Year greetings to Wuppertal, I stood there in early October, only for a few hours.

I think the switches are old, but can be mounted easily.

I have a SW-debounce in the program too, but I think in the isr it’s not so good to wait long…

Image

I’m trying the interrupt approach. Added one interrupt to each falling edge of each pin.
The issue is that I get false triggers on the noise from the rising edges.
And due to the fast refresh speeds I get lots of pulses from this noise…

Any ideas?

I might try mausi_mick’s encoder code (haven’t done it yet… ) to see if there’s any improvement.

Also working on a new layout pictures latter on

I have only 10 nF ceramic directly on the encoder-pins, on the switches/buttons I have a RC-combination:

On the Input-Pin ST32F103 a 100nF (and a 1 µF (only for test)) and a 4.99 kOhm between STM32F103STM32F103Микроконтроллеры и процессоры…19.html . ag123 Sat Apr 28, 2018 5:54 pm come to think of it blue pill / maple mini ( stm32f103 ) is an *ideal* keyboard controller, the scanning can be done with assistance of sh…[SOLVED] generic blue pill clone as USB keyboard ↗ Pins and the switches.

But for the encoder I have changed the code a little bit :

void encCnt() {

if (s_enc == 1) return;
if (digitalRead(encA_16) && !digitalRead(encB_17)) {

if (encoderpos <  maxp[actFunc]) {

encoderpos++;

actPos = encoderpos;

s_enc = 1;

}

}

if (digitalRead(encA_16) && digitalRead(encB_17))  {  // subtract 1 from count for CCW
if (encoderpos > minp[actFunc]) {

encoderpos--;

actPos = encoderpos;

s_enc = 1;

}

}
if (s_enc == 1) setValue(actPos);

}

//#######################################################################################

// functions:

//

//=========== functions ===============================

// 6 - Triggertype:  ---------------------------------6

// 5 - Triggervalue/position ----------------------5  |

// 4 - xZoomfactor ----------------------------4   |  |

// 3 - yZoomfactor ------------------------3   |   |  |

// 2 - yPosition -----------------------2  |   |   |  |

// 1 - timeBase----------------------1  |  |   |   |  |

//                                   |  |  |   |   |  |

//                                   V  V  V   V   V  V

volatile int16_t fold[8] =       {0, 1, 2, 3,  4,  5, 6, 0}; // old values

volatile int8_t const maxp[8] =  {0,19,13, 2, 19, 15, 2, 0}; // max. switch positions

volatile int8_t const minp[8] =  {0, 0, 1, 0,  0,  0, 0, 0}; // minimal switch position

volatile int8_t const stpw[8] =  {0, 1, 1, 1,  1,  0, 0, 0}; // step-width (not used)

volatile int8_t curp[8] =        {0, 1, 6, 1,  0,  6, 0, 0}; // current switch position

volatile uint32_t const  t_time[20] = {100,200,300,400,500,600,700,800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,2000};

volatile int16_t  const  t_ypos[13] = {-240,-200,-160,-120,-80,-40,0,40,80,120,160,200,240};

volatile uint32_t const  t_triv[16] = {256,512,768,1024,1280,1536,1792,2048,2304,2560,2816,3072,3328,3584,3840,4096};

volatile int16_t  const  t_trty[3]  = {0,1,2};

volatile int16_t  const  t_yzfa[3]  = {100,200,300};

volatile int16_t  const  t_xzfa[20] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};  // ???

volatile uint8_t s_but_18=0; // 0=function fixed, 1=decrement function
volatile uint8_t s_but_19=0; // 0=function fixed, 1=increment function
volatile uint8_t s_enc = 1;

//############################################################################################################