Hello guys,
I started to mess around with ESP8266 and PSoC4 pioneer kit (CY8C4245AXI-483), this is my uart set up:
https://i.imgur.com/UrOn4K9.png
https://i.imgur.com/oP5A643.png
I have set up my ESP8266 pins like this:
CE - 3.3 V
3.3 V - 3.3 V
RX - TX P1[1]
TX - RX P1[0]
GND - GND
RST - P2[2]
Everything else is left float.
I send AT command and check for OK response from ESP like this:
<code>
UART_PutString("AT\r\n");
if (!WaitText("OK", 100))
UART_1_UartPutString("UART does not work\r\n"); // debug text to putty terminal
</code>
I use some code from similar projects, to check for OK response:
<code>
uint16 WaitText(char *target, int time) /******************************************************/
{
uint8 targetLen = strlen(target); // Длина искомого фрагмента
uint8 index = 0; // maximum target string length is 255 bytes
char c; // текущий символ
while(UART_GetRxBufferSize())
//do
{ // читаем UART
c = UART_ReadRxData(); // это элемент[index] искомой строки?
if( c == target[index]){ if(++index >= targetLen){return 1; }} // return true если все элементы строки найдены if all chars in the target match
else index = 0; //.......................... // не тот фрагмент - обнуляемся
if( !UART_GetRxBufferSize()){CyDelay(1); time--;} // при проверке с==0 - вычитывает несколько раз, поэтому ReadRxData и GetRxBufferSize
} //while(time);
return 0; // буфер данных пуст
}
</code>
The problem is, that I find no OK response. I thought that UART_PutString() function, does'nt put CR and LF chars at the end, so I put them myself, but I might be wrong, so I tried playing with combinations (no CR, but LF, no LF, but CR, no CR and no LF), but it still does'nt work, could it be that I configured my UART incorrectly? I know that the baud rate is correct, because I tested the esp on arduino board, and everything worked just fine. So at this point I am stumped, any ideas how to solve this?
