Others: hardware and software

HI, We are storing some values to Emulated EEPROM using on-chip Flash memory. It was working fine for few months suddenly its reading nothing from the memory. Then we downloaded the same firmware again and its started to work. Why its happened?

Why STM8 Discovery stops if Interrupts are enabled e.g. TIM4_IER is set and rim() is used?

//STM8 Discovery freezes if TIM4_IER is set or rim() is used//please help, I'm using free mode Cosmic Compiler on STVD #include "iostm8s105.h"void init_port(void){ PD_ODR = 0x00;    PD_DDR = 0xff; //output   PD_CR1 = 0xff; //pushpull    }@interrupt t...

VNQ5E160AK 1) current sense limits 2) internal power limitation

Hi, I'm using some VNQ5E160AK with current monitoring. According to datasheet Iout/Isense ratio is in the range of 465 for 'high' current, means it should be 6.5mA for 3A and 21.5mA for 10A. As my ADC range is 5V, I load sense pin with a 200 Ohm resi...

STM8 SPI slave device data read

Hi,I want to read more than one byte of data from slave device. I am using STM8AF family micrcontroller in master mode and pressure sensor SMP580 is a slave device. Master will send command which is of 1-byte to read 16 bit data from slave device. An...

ADC request DMA transfer

Hello,we are using STR73x device. Our application needs to get 1 ADC sample every 5 ms and uses DMA to transfer that to memory.to do this, we setup a TB1 timer to trigger every 5 ms.On TB1 interrupt, we start a single shot ADC conversion.This works ...

How protect GPIOs from ISO7637-3 Pulses?

Hi,I would like to protect my GPIOs from ISO7637-3 pulses with a rail to rail diode solution. But I have seen that the GPIOs already have a intern rail to rail protection with a forward voltage Vf_int = 0.6V (Datasheet Fig. 43). To protect my GPIOs w...

I am using MC peripheral part# ZPSD301B-90JI in one of my applications. This part is obsolete and no longer supported by ST. I want to know if I can get any information on how to program a fresh MC. Can I do it with PSDsoft? What hardware is needed

I have BK Precision 864 universal programmer. Can I use it to flash this MC? Or please let me know what hardware (cables, prorammer hardware etc) is needed if I use PSDSoft software.

Using SPI Read more than one byte of data from slave device

Hi,I want to read more than one byte of data from slave device. I am using STM8AF family micrcontroller in master mode and pressure sensor is a slave device. Master will send command which is of 1-byte to read data from slave device. And slave will ...

SPWF01SC UART not responding

We have used Wifi Module “SPWF01SC�? in one of our projects. Now recently we are getting more issue in wifi module.Most of the modules are not responding to AT commands. Can you please suggest possible troubleshoot steps to resolve this issue.

wifi who wants not connected

Hello,I want to connect esp8266 wifi using stm32f4 to an access point, I find that the module is not stable; sometimes it connects and sometimes no, I didn't understand why. can someone gone through that please help me?here is my code and thanks in a...