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Hello,
I need to parse a raw data that I receive UART3 interface. Then, I will send to a PC to show results in serial monitor. Before implementing in the microcontroller, I tested my approach in a C compiler. A sample raw data in the buffer array and here is C code to do this job:
#include...
After fixing the GND connection, I saw the USB-UART bridge IC name. Then I successfully downloaded it. Now I will try to upload the firmware.
1712952702
The battery voltage is 3.7V (represents with Bat+)
Thank you @KlausST ! I fixed the GND connection with a jumper wire. Are the power supply capacitors critical?
Why are the both two LEDs keeping the lights ON?
Hello,
On my custom designed PCB, there is a USB port for battery charging and programming ESP32 microcontroller. When I plug in to the PC, I get "USB Not recognized" message. In addition, the two LEDs are light up. In the datasheet of the charger IC (STBC08), it says there is "not enough...
Hello,
On my custom design PCB, I record analog data through emStat pico module. The controller on my board is STM32F4. Current problem is that the sensor keeps reading data whenever I run again the system. Based on the C application manual of the sensor...
Thank you @Aussie Susan and @KlausST
Here is my updated code to try reading CHIPID, but I am not sure that reading registers show correct result.
write_buf[0] = SPICMD_READREG;
write_buf[1] = 0x04; // myAddrH // Write CHIPID register
write_buf[2] = 0x04; // myAddrL // Write CHIPID...
Sorry for that, I updated the code with adding explanation. My target is that reading data from the register. Now I got certain values which were 0x1 in read_buf[0] but I am not sure whether this value is correct or not.
uint8_t addr = 0x6D; // Specifies read transaction. SPICMD_READREG...
Now, I tested third step in the datasheet of AD5940, then I get this results:
...
int main(){
uint8_t addr = 0x6D;
uint8_t dummy = 0xCD;
HAL_GPIO_WritePin(SPI3_CS_GPIO_Port, SPI3_CS_Pin, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi3, (uint8_t *)&addr, 1, 100);
HAL_SPI_Transmit(&hspi3...
I modified a little more with declaring myAddrH with random values,
...
/* USER CODE BEGIN PV */
const uint8_t SPICMD_SETADDR = 0x20;
const uint8_t SPICMD_READREG = 0x6D;
const uint8_t SPICMD_WRITEREG = 0x2D;
/* USER CODE END PV */
...
int main(void)
{
/* USER CODE BEGIN 1 */
char...
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