Hello,
I am using UART1 to communicate with sensor. It is working fine. I can receive the data. Now I want to modify this data. When I use strcpy() function, it works properly. But when I use functions like strchr(), there is error. I will paste the code and error as well.
To modify the received data from sensor, I am modifying the UART callback function. So is this the reason for the error and what should I do to overcome this problem?
Code:
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#include <zephyr.h>
#include <misc/printk.h>
#include <uart.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static u8_t uart_buf[1024];
void uart_cb(struct device *x)
{
uart_irq_update(x);
int data_length = 0;
if (uart_irq_rx_ready(x)) {
data_length = uart_fifo_read(x, uart_buf, sizeof(uart_buf));
uart_buf[data_length] = 0;
}
printk("%s", uart_buf);
// k_sleep(1000);
Output:
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UART loopback start!
$Exception occurred in Secure State
***** HARD FAULT *****
Fault escalation (see below)
***** BUS FAULT *****
Precise data bus error
BFAR Address: 0x50008120
***** Hardware exception *****
Current thread ID = 0x200200b0
Faulting instruction address = 0xe608
Fatal fault in ISR! Spinning...
