lx2080a customer board.
Uart1 is my debugging printf serial port。
Uart2 is the serial port through which I communicate with CPLD。
now ，Under the kernel recognizes the uart2 which is ttyAMA1。
root@localhost:~# ls /dev/ttyAMA0 -l
crw------- 1 root tty 204, 64 Dec 26 10:22 /dev/ttyAMA0
root@localhost:~# ls /dev/ttyAMA1 -l
crw-rw---- 1 root dialout 204, 65 Dec 26 10:21 /dev/ttyAMA1
The CPLD cannot receive the data sent by the LX2080, and the CPU cannot receive the data sent by
the CPLD。
below is a simple test case code。There is no data sent or received at present。
int main()
{
char recvbuf[100];
int ret = 0, fd = 0;
char send[2] = {0x55};
if(fd == 0)
fd = open("/dev/ttyAMA1", O_RDWR );
if(ret <0)
{
perror("can not open ttyAMA1 \n");
exit(1);
}
ret = write(fd,send, 1);
if(ret <0)
{
perror("write ttyS1 0x55 err \n");
exit(1);
}
while(1)
{
memset(recvbuf, 0, sizeof(recvbuf));
ret = read(fd, recvbuf, 90);
printf("len: %d, recvbuf %s \n", ret, recvbuf);
}
close(fd);
return 1;
there is no CONFIG_SERIAL_PROBE_ALL in uboot
Do you mean to add new variable "CONFIG_SERIAL_PROBE_ALL" ?
Is an index of an array and replacing it with CONFIG_SERIAL_PROBE_ALL is problematic .
yes
