пиши
bin_hex(u8 *rx_buf,u16 len)
{
u8 hex[1];
u16 len_hex;
eat_uart_write(eat_uart_app, "\r\n",strlen("\r\n"));
for(len_hex=0;len_hex<len;len_hex++)
{
hex[0]=(rx_buf[len_hex] >> 4) & 0x0F;
if (hex[0]<10) hex[0]=hex[0] + 48;
else hex[0]=hex[0] + 55;
eat_uart_write(eat_uart_app, hex, 1);
hex[0]=rx_buf[len_hex] & 0x0F;
if (hex[0]<10) hex[0]=hex[0] + 48;
else hex[0]=hex[0] + 55;
eat_uart_write(eat_uart_app, hex, 1);
eat_uart_write(eat_uart_app, " ", strlen(" "));
}
eat_uart_write(eat_uart_app, "\r\n",strlen("\r\n"));
}