Hi,
I read your project.
First of all, I was surprised that it was working before!
As the MCU is CY8C4245AXI-483,
I tested it with my CY8CKIT-042.
Since I soldered KitProg's UART with P0[4] and P0[5],
I connected an external USB-Serial converter to P4[0] and P4[1].
You may be able to jumper P4[0] and P4[1] to KitProg's P12[7], P12[6].
Anyway, with the modification below, I could get interrupts.
I modified your project as below.
==============
#include <project.h>
volatile char Worbuff[128]={0};
unsigned char RXBytcount;
CY_ISR_PROTO (RXinterrupt);
CY_ISR (RXinterrupt)
{
Worbuff[RXBytcount]=UART_RX_FIFO_RD_REG;
RXBytcount=1;
UART_SpiUartClearRxBuffer();
UART_ClearRxInterruptSource(UART_INTR_RX_NOT_EMPTY);
RXINT_ClearPending();
RXINT_Disable() ; // Stop interrupts till it will be released again
}
int main(void)
{
uint8 temp,temp1;
char num[6]={0};
unsigned int Prevpoint,tempint;
unsigned char temp4,shiftcount[1];
unsigned long temp3;
UART_Start();
// UART_Init(); // (1)
// UART_Enable(); // (1)
RXINT_StartEx(RXinterrupt);
CyGlobalIntEnable; /* Enable global interrupts. */
RXBytcount=0;
while(1)
{
// CyDelay(5);
if(RXBytcount)
{
// RXINT_Stop(); // (2)
UART_UartPutString("12345");
//UART_UartPutChar(Worbuff[0]);
UART_UartPutChar(0x0D);
// UART_SpiUartClearRxBuffer(); // (3)
// UART_ClearRxInterruptSource(UART_INTR_RX_NOT_EMPTY); // (3)
// RXINT_ClearPending(); // (3)
RXBytcount=0;
// RXINT_Start(); // (4)
RXINT_Enable() ;
}
}
}
==============
(1) This is done in UART_Start()
(2) This should be done in ISR and this should be RXINT_Disable()
(3) We don't need this
(4) This should be RXINT_Enable()
It would be nice if you can also refer to my sample of UART usage.
Re: tty_utils a utility sample for CLI type program
moto
