//
//-----------------------------------------------------------------------------
// The confidential and proprietary information contained in this file may
// only be used by a person authorised under and to the extent permitted
// by a subsisting licensing agreement from Arm Limited or its affiliates.
//
// (C) COPYRIGHT 2010-2013 Arm Limited or its affiliates.
// ALL RIGHTS RESERVED
//
// This entire notice must be reproduced on all copies of this file
// and copies of this file may only be made by a person if such person is
// permitted to do so under the terms of a subsisting license agreement
// from Arm Limited or its affiliates.
//
// SVN Information
//
// Checked In : $Date: 2017-10-10 15:55:38 +0100 (Tue, 10 Oct 2017) $
//
// Revision : $Revision: 371321 $
//
// Release Information : Cortex-M System Design Kit-r1p1-00rel0
//-----------------------------------------------------------------------------
//
// A simple test to check the functionalities of the APB UART
#ifdef CORTEX_M0
#include "CMSDK_CM0.h"
#endif
#ifdef CORTEX_M0PLUS
#include "CMSDK_CM0plus.h"
#endif
#ifdef CORTEX_M3
#include "CMSDK_CM3.h"
#endif
#ifdef CORTEX_M4
#include "CMSDK_CM4.h"
#endif
#include <stdio.h>
#include <string.h>
#include "uart_stdout.h"
#define UART_STATE_TXFULL CMSDK_UART_STATE_TXBF_Msk
#define UART_STATE_RXFULL CMSDK_UART_STATE_RXBF_Msk
#define UART_STATE_TXOVR CMSDK_UART_STATE_TXOR_Msk
#define UART_STATE_RXOVR CMSDK_UART_STATE_RXOR_Msk
#define UART_CTRL_TXEN CMSDK_UART_CTRL_TXEN_Msk
#define UART_CTRL_RXEN CMSDK_UART_CTRL_RXEN_Msk
#define UART_CTRL_TXIRQEN CMSDK_UART_CTRL_TXIRQEN_Msk
#define UART_CTRL_RXIRQEN CMSDK_UART_CTRL_RXIRQEN_Msk
#define UART_CTRL_TXOVRIRQEN CMSDK_UART_CTRL_TXORIRQEN_Msk
#define UART_CTRL_RXOVRIRQEN CMSDK_UART_CTRL_RXORIRQEN_Msk
#define UART_CTRL_HIGHSPEEDTX CMSDK_UART_CTRL_HSTM_Msk
#define UART_INTSTATE_TX 1
#define UART_INTSTATE_RX 2
#define UART_INTSTATE_TXOVR 4
#define UART_INTSTATE_RXOVR 8
#define BAUDDIV_MASK 0x000FFFFF
#define DISPLAY 1
#define NO_DISPLAY 0
/* peripheral and component ID values */
#define APB_UART_PID4 0x04
#define APB_UART_PID5 0x00
#define APB_UART_PID6 0x00
#define APB_UART_PID7 0x00
#define APB_UART_PID0 0x21
#define APB_UART_PID1 0xB8
#define APB_UART_PID2 0x1B
#define APB_UART_PID3 0x00
#define APB_UART_CID0 0x0D
#define APB_UART_CID1 0xF0
#define APB_UART_CID2 0x05
#define APB_UART_CID3 0xB1
#define HW32_REG(ADDRESS) (*((volatile unsigned long *)(ADDRESS)))
/* Global variables */
volatile int uart0_irq_occurred;
volatile int uart1_irq_occurred;
volatile int uart2_irq_occurred;
volatile int uart0_irq_expected;
volatile int uart1_irq_expected;
volatile int uart2_irq_expected;
/* Function definitions */
void UartIOConfig(void);
int uart_initial_value_check(CMSDK_UART_TypeDef *CMSDK_UART);
int simple_uart_test(CMSDK_UART_TypeDef *CMSDK_UART, unsigned int bauddiv, int verbose);
int simple_uart_baud_test(void);
int simple_uart_baud_test_single(CMSDK_UART_TypeDef *CMSDK_UART,
unsigned int tx_bauddiv,unsigned int rx_bauddiv,int verbose);
int uart_enable_ctrl_test(CMSDK_UART_TypeDef *CMSDK_UART);
int uart_tx_rx_irq_test(CMSDK_UART_TypeDef *CMSDK_UART);
int uart_tx_rx_overflow_test(CMSDK_UART_TypeDef *CMSDK_UART);
void delay_for_character(void);
int uart2_interrupt_test(void);
int uart0_id_check(void); /* Detect UART 0 present */
int uart1_id_check(void); /* Detect UART 1 present */
int gpio1_id_check(void); /* Detect GPIO 1 present */
int main (void)
{
int result=0;
// UART init
UartStdOutInit();
// Test banner message and revision number
puts("\nCortex Microcontroller System Design Kit - UART Test - revision $Revision: 371321 $\n");
if ((uart0_id_check()!=0)||(uart1_id_check()!=0)||(gpio1_id_check()!=0)) {
puts("** TEST SKIPPED ** UART 0 / UART 1 / GPIO 1 not available");
UartEndSimulation();
return 0;}
uart0_irq_occurred = 0;
uart1_irq_occurred = 0;
uart0_irq_expected = 0;
uart1_irq_expected = 0;
uart2_irq_occurred = 0;
uart2_irq_expected = 0;
UartIOConfig();
result += uart_initial_value_check(CMSDK_UART0);
result += uart_initial_value_check(CMSDK_UART1);
puts("\nUART 0 for transmit, UART 1 for receive\n");
result += simple_uart_test(CMSDK_UART0, 32, DISPLAY);
result += simple_uart_baud_test();
result += uart_enable_ctrl_test(CMSDK_UART0);
result += uart_tx_rx_irq_test(CMSDK_UART0);
result += uart_tx_rx_overflow_test(CMSDK_UART0);
puts("\nUART 1 for transmit, UART 0 for receive\n");
result += simple_uart_test(CMSDK_UART1, 16, DISPLAY);
result += uart_enable_ctrl_test(CMSDK_UART1);
result += uart_tx_rx_irq_test(CMSDK_UART1);
result += uart_tx_rx_overflow_test(CMSDK_UART1);
puts("\nUART 2 interrupt connectivity test\n");
result += uart2_interrupt_test();
if (result==0) {
printf ("\n** TEST PASSED **\n");
} else {
printf ("\n** TEST FAILED ** , Error code = (0x%x)\n", result);
}
UartEndSimulation();
return 0;
}
void UartIOConfig(void)
{ /* UART0 and UART1 are arranged in cross over configuration. */
/* Enable UART TXD functions for these pins */
CMSDK_GPIO1->ALTFUNCSET = (1<<1) | (1<<3);
return;
}
/* --------------------------------------------------------------- */
/* UART initial value tests */
/* --------------------------------------------------------------- */
int uart_initial_value_check(CMSDK_UART_TypeDef *CMSDK_UART){
int return_val=0;
int err_code=0;
unsigned int uart_base;
unsigned int i;
puts("- check initial values");
if (CMSDK_UART->DATA !=0) {err_code += (1<<0);}
if (CMSDK_UART->STATE !=0) {err_code += (1<<1);}
if (CMSDK_UART->CTRL !=0) {err_code += (1<<2);}
if (CMSDK_UART->INTSTATUS!=0) {err_code += (1<<3);}
if (CMSDK_UART->BAUDDIV !=0) {err_code += (1<<4);}
uart_base = CMSDK_UART0_BASE;
if (CMSDK_UART==CMSDK_UART1) {uart_base = CMSDK_UART1_BASE;}
if (CMSDK_UART==CMSDK_UART2) {uart_base = CMSDK_UART2_BASE;}
if (HW32_REG(uart_base + 0xFD0) != APB_UART_PID4) {err_code += (1<<5); }
if (HW32_REG(uart_base + 0xFD4) != APB_UART_PID5) {err_code += (1<<6); }
if (HW32_REG(uart_base + 0xFD8) != APB_UART_PID6) {err_code += (1<<7); }
if (HW32_REG(uart_base + 0xFDC) != APB_UART_PID7) {err_code += (1<<8); }
if (HW32_REG(uart_base + 0xFE0) != APB_UART_PID0) {err_code += (1<<9); }
if (HW32_REG(uart_base + 0xFE4) != APB_UART_PID1) {err_code += (1<<10); }
if (HW32_REG(uart_base + 0xFE8) != APB_UART_PID2) {err_code += (1<<11); }
if (HW32_REG(uart_base + 0xFEC) != APB_UART_PID3) {err_code += (1<<12); }
if (HW32_REG(uart_base + 0xFF0) != APB_UART_CID0) {err_code += (1<<13); }
if (HW32_REG(uart_base + 0xFF4) != APB_UART_CID1) {err_code += (1<<14); }
if (HW32_REG(uart_base + 0xFF8) != APB_UART_CID2) {err_code += (1<<15); }
if (HW32_REG(uart_base + 0xFFC) != APB_UART_CID3) {err_code += (1<<16); }
/* test write to PIDs and CIDs - should be ignored */
for (i=0; i <12; i++) {
HW32_REG(uart_base + 0xFD0 + (i<<2)) = ~HW32_REG(uart_base + 0xFD0 + (i<<2));
}
/* Check read back values again, should not be changed */
if (HW32_REG(uart_base + 0xFD0) != APB_UART_PID4) {err_code |= (1<<5); }
if (HW32_REG(uart_base + 0xFD4) != APB_UART_PID5) {err_code |= (1<<6); }
if (HW32_REG(uart_base + 0xFD8) != APB_UART_PID6) {err_code |= (1<<7); }
if (HW32_REG(uart_base + 0xFDC) != APB_UART_PID7) {err_code |= (1<<8); }
if (HW32_REG(uart_base + 0xFE0) != APB_UART_PID0) {err_code |= (1<<9); }
if (HW32_REG(uart_base + 0xFE4) != APB_UART_PID1) {err_code |= (1<<10); }
if (HW32_REG(uart_base + 0xFE8) != APB_UART_PID2) {err_code |= (1<<11); }
if (HW32_REG(uart_base + 0xFEC) != APB_UART_PID3) {err_code |= (1<<12); }
if (HW32_REG(uart_base + 0xFF0) != APB_UART_CID0) {err_code |= (1<<13); }
if (HW32_REG(uart_base + 0xFF4) != APB_UART_CID1) {err_code |= (1<<14); }
if (HW32_REG(uart_base + 0xFF8) != APB_UART_CID2) {err_code |= (1<<15); }
if (HW32_REG(uart_base + 0xFFC) != APB_UART_CID3) {err_code |= (1<<16); }
if (err_code != 0) {
printf ("ERROR : initial value failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* UART simple operation test */
/* --------------------------------------------------------------- */
int simple_uart_test(CMSDK_UART_TypeDef *CMSDK_UART, unsigned int bauddiv, int verbose)
{
int return_val=0;
int err_code=0;
CMSDK_UART_TypeDef *TX_UART;
CMSDK_UART_TypeDef *RX_UART;
char received_text[20];
const char transmit_text[20] = "Hello world\n";
unsigned int tx_count;
unsigned int rx_count;
unsigned int str_size;
puts("Simple test");
UartPutc('-');
UartPutc(' ');
/* Determine which UART is the sender, and which UART is receiver */
if (CMSDK_UART==CMSDK_UART0){
TX_UART = CMSDK_UART0;
RX_UART = CMSDK_UART1;
}
else if (CMSDK_UART==CMSDK_UART1){
TX_UART = CMSDK_UART1;
RX_UART = CMSDK_UART0;
}
else {
puts ("ERROR: Input parameter invalid in function 'simple_uart_test'.");
return 1;
}
/* Both UART are programmed with the same baud rate */
TX_UART->BAUDDIV = bauddiv;
if (TX_UART->BAUDDIV != bauddiv) { err_code += (1<<0);}
RX_UART->BAUDDIV = bauddiv;
if (RX_UART->BAUDDIV != bauddiv) { err_code += (1<<1);}
TX_UART->CTRL = TX_UART->CTRL | UART_CTRL_TXEN; /* Set TX enable */
if ((TX_UART->CTRL & UART_CTRL_TXEN)==0) { err_code += (1<<2);}
RX_UART->CTRL = RX_UART->CTRL | UART_CTRL_RXEN; /* Set RX enable */
if ((RX_UART->CTRL & UART_CTRL_RXEN)==0) { err_code += (1<<3);}
tx_count = 0;
rx_count = 0;
str_size = strlen(transmit_text);
do { /* test loop for both tx and rx process */
/* tx process */
if (((TX_UART->STATE & UART_STATE_TXFULL)==0)&&(tx_count<str_size)) {
TX_UART->DATA = transmit_text[tx_count];
tx_count++;
}
/* rx process */
if ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
received_text[rx_count] = RX_UART->DATA;
if (verbose) UartPutc((char) received_text[rx_count]);
rx_count++;
}
} while ( rx_count <str_size);
received_text[rx_count]=0; /* add NULL termination */
/* Added 3 additional null chars to overcome X-termination in test
when reads back X's beyond null char since a load 32-bit word
happens rather than a byte access. */
received_text[rx_count+1]=0; /* add NULL termination */
received_text[rx_count+2]=0; /* add NULL termination */
received_text[rx_count+3]=0; /* add NULL termination */
if (strcmp(transmit_text, received_text)!=0){ err_code += (1<<4);}
TX_UART->CTRL = 0; /* Clear TX enable */
RX_UART->CTRL = 0; /* Clear RX enable */
if (err_code != 0) {
printf ("ERROR : simple test failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* UART baud rate operation test */
/* --------------------------------------------------------------- */
int simple_uart_baud_test(void)
{
int return_val=0;
int err_code=0;
int i;
short int tx_bauddiv[10] = {
63, 64, 35, 38, 40, 46, 85, 49, 51, 37};
short int rx_bauddiv[10] = {
63, 64, 35, 38, 40, 46, 85, 49, 51, 37};
puts("Data transfer test\n");
for (i=0; i<10; i++) {
/* Test TX and RX at same speed */
if (simple_uart_baud_test_single(CMSDK_UART0,
tx_bauddiv[i], rx_bauddiv[i] , NO_DISPLAY)!=0) {err_code |= 0x1;};
/* Test RX slower than TX */
if (simple_uart_baud_test_single(CMSDK_UART0,
tx_bauddiv[i], (rx_bauddiv[i]+1), NO_DISPLAY)!=0) {err_code |= 0x2;};
/* Test RX faster than TX */
if (simple_uart_baud_test_single(CMSDK_UART0,
tx_bauddiv[i], (rx_bauddiv[i]-1), NO_DISPLAY)!=0) {err_code |= 0x4;};
if (err_code != 0) {
printf ("ERROR : Baud rate test failed (0x%x) at loop %d\n", err_code, i);
return_val = 1;
err_code = 0;
}
else {
printf ("- bauddiv = %d done\n", tx_bauddiv[i]);
}
}
CMSDK_UART0->CTRL = 0;
CMSDK_UART1->CTRL = 0;
CMSDK_UART0->BAUDDIV = 0xFFFFFFFF;
if (CMSDK_UART0->BAUDDIV != (0xFFFFFFFF & BAUDDIV_MASK)) {err_code |= (1<<0);};
CMSDK_UART0->BAUDDIV = 0xFF55AAC3;
if (CMSDK_UART0->BAUDDIV != (0xFF55AAC3 & BAUDDIV_MASK)) {err_code |= (1<<1);};
CMSDK_UART0->BAUDDIV = 0x00000000;
if (CMSDK_UART0->BAUDDIV != (0x00000000 & BAUDDIV_MASK)) {err_code |= (1<<2);};
CMSDK_UART1->BAUDDIV = 0xFFFFFFFF;
if (CMSDK_UART1->BAUDDIV != (0xFFFFFFFF & BAUDDIV_MASK)) {err_code |= (1<<3);};
CMSDK_UART1->BAUDDIV = 0xAAFF6699;
if (CMSDK_UART1->BAUDDIV != (0xAAFF6699 & BAUDDIV_MASK)) {err_code |= (1<<4);};
CMSDK_UART1->BAUDDIV = 0x00000000;
if (CMSDK_UART1->BAUDDIV != (0x00000000 & BAUDDIV_MASK)) {err_code |= (1<<5);};
if (err_code != 0) {
printf ("ERROR : Baud rate r/w failed (0x%x)\n", err_code);
return_val = 1;
err_code = 0;
}
return(return_val);
}
/* --------------------- */
int simple_uart_baud_test_single(CMSDK_UART_TypeDef *CMSDK_UART,
unsigned int tx_bauddiv,
unsigned int rx_bauddiv,
int verbose)
{
int return_val=0;
int err_code=0;
CMSDK_UART_TypeDef *TX_UART;
CMSDK_UART_TypeDef *RX_UART;
char received_text[20];
const char transmit_text[20] = "Hello world\n";
unsigned int tx_count;
unsigned int rx_count;
unsigned int str_size;
/* Determine which UART is the sender, and which UART is receiver */
if (CMSDK_UART==CMSDK_UART0){
TX_UART = CMSDK_UART0;
RX_UART = CMSDK_UART1;
}
else if (CMSDK_UART==CMSDK_UART1){
TX_UART = CMSDK_UART1;
RX_UART = CMSDK_UART0;
}
else {
puts ("ERROR: Input parameter invalid in function 'simple_uart_baud_test_single'.");
return 1;
}
/* UART can be programmed with different baud rate */
TX_UART->BAUDDIV = tx_bauddiv;
if (TX_UART->BAUDDIV != tx_bauddiv) { err_code += (1<<0);}
RX_UART->BAUDDIV = rx_bauddiv;
if (RX_UART->BAUDDIV != rx_bauddiv) { err_code += (1<<1);}
TX_UART->CTRL = TX_UART->CTRL | UART_CTRL_TXEN; /* Set TX enable */
if ((TX_UART->CTRL & UART_CTRL_TXEN)==0) { err_code += (1<<2);}
RX_UART->CTRL = RX_UART->CTRL | UART_CTRL_RXEN; /* Set RX enable */
if ((RX_UART->CTRL & UART_CTRL_RXEN)==0) { err_code += (1<<3);}
tx_count = 0;
rx_count = 0;
str_size = strlen(transmit_text);
do { /* test loop for both tx and rx process */
/* tx process */
if (((TX_UART->STATE & UART_STATE_TXFULL)==0)&&(tx_count<str_size)) {
TX_UART->DATA = transmit_text[tx_count];
tx_count++;
}
/* rx process */
if ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
received_text[rx_count] = RX_UART->DATA;
if (verbose) UartPutc((char) received_text[rx_count]);
rx_count++;
}
} while ( rx_count <str_size);
received_text[rx_count]=0; /* add NULL termination */
/* Added 3 additional null chars to overcome X-termination in test
when reads back X's beyond null char since a load 32-bit word
happens rather than a byte access. */
received_text[rx_count+1]=0; /* add NULL termination */
received_text[rx_count+2]=0; /* add NULL termination */
received_text[rx_count+3]=0; /* add NULL termination */
if (strcmp(transmit_text, received_text)!=0){ err_code += (1<<4);}
TX_UART->CTRL = 0; /* Clear TX enable */
RX_UART->CTRL = 0; /* Clear RX enable */
if (err_code != 0) {
printf ("ERROR : baud test failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* UART enable control test */
/* --------------------------------------------------------------- */
int uart_enable_ctrl_test(CMSDK_UART_TypeDef *CMSDK_UART)
{
int return_val=0;
int err_code=0;
CMSDK_UART_TypeDef *TX_UART;
CMSDK_UART_TypeDef *RX_UART;
char ctmp;
/* Determine which UART is the sender, and which UART is receiver */
if (CMSDK_UART==CMSDK_UART0){
TX_UART = CMSDK_UART0;
RX_UART = CMSDK_UART1;
}
else if (CMSDK_UART==CMSDK_UART1){
TX_UART = CMSDK_UART1;
RX_UART = CMSDK_UART0;
}
else {
puts ("ERROR: Input parameter invalid in function 'uart_enable_ctrl_test'.");
return 1;
}
puts ("UART enable test");
/* UART programmed with same baud rate */
TX_UART->BAUDDIV = 32;
if (TX_UART->BAUDDIV != 32) { err_code += (1<<0);}
RX_UART->BAUDDIV = 32;
if (RX_UART->BAUDDIV != 32) { err_code += (1<<1);}
puts ("- both TX and RX are enabled");
TX_UART->CTRL = TX_UART->CTRL | UART_CTRL_TXEN; /* Set TX enable */
if ((TX_UART->CTRL & UART_CTRL_TXEN)==0) { err_code += (1<<2);}
RX_UART->CTRL = RX_UART->CTRL | UART_CTRL_RXEN; /* Set RX enable */
if ((RX_UART->CTRL & UART_CTRL_RXEN)==0) { err_code += (1<<3);}
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* Starting state incorrect */
err_code += (1<<4);}
TX_UART->DATA = 'A'; /* transmit a character */
delay_for_character();
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)==0)) {
/* complete state incorrect */
err_code += (1<<5);}
ctmp = RX_UART->DATA; /* Read received data */
if ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
/* receive buffer should be empty now */
err_code += (1<<6);}
if ( ctmp != 'A') { /* received data incorrect */
err_code += (1<<7);}
puts ("- TX disabled");
TX_UART->CTRL = TX_UART->CTRL & ~UART_CTRL_TXEN; /* Clear TX enable */
if ((TX_UART->CTRL & UART_CTRL_TXEN)!=0) { err_code += (1<<8);}
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* Starting state incorrect */
err_code += (1<<9);}
TX_UART->DATA = 'B'; /* transmit a character */
/* When TX enable is low and a data is written to transmit buffer, the
data would be lost */
delay_for_character();
if ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
/* RX buffer should still be empty*/
err_code += (1<<10);}
TX_UART->CTRL = TX_UART->CTRL | UART_CTRL_TXEN; /* Set TX enable */
delay_for_character();
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* complete state incorrect */
err_code += (1<<11);}
puts ("- RX disabled");
RX_UART->CTRL = RX_UART->CTRL & ~UART_CTRL_RXEN; /* Clear RX enable */
if ((RX_UART->CTRL & UART_CTRL_RXEN)!=0) { err_code += (1<<12);}
TX_UART->DATA = 'C'; /* transmit a character */
delay_for_character();
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* No data should be received. complete state incorrect */
err_code += (1<<13);}
RX_UART->CTRL = RX_UART->CTRL | UART_CTRL_RXEN; /* Set RX enable */
delay_for_character();
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* No data should be received. complete state incorrect */
err_code += (1<<14);}
TX_UART->CTRL = 0;
RX_UART->CTRL = 0;
while ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
ctmp=RX_UART->DATA;
}
if (err_code != 0) {
printf ("ERROR : uart enable failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* UART tx & rx interrupt test */
/* --------------------------------------------------------------- */
int uart_tx_rx_irq_test(CMSDK_UART_TypeDef *CMSDK_UART)
{
int return_val=0;
unsigned int err_code=0;
CMSDK_UART_TypeDef *TX_UART;
CMSDK_UART_TypeDef *RX_UART;
char ctmp;
/* Determine which UART is the sender, and which UART is receiver */
if (CMSDK_UART==CMSDK_UART0){
TX_UART = CMSDK_UART0;
RX_UART = CMSDK_UART1;
}
else if (CMSDK_UART==CMSDK_UART1){
TX_UART = CMSDK_UART1;
RX_UART = CMSDK_UART0;
}
else {
puts ("ERROR: Input parameter invalid in function 'uart_tx_rx_irq_test'.");
return 1;
}
puts ("UART TX & RX IRQ test");
/* UART programmed with same baud rate */
TX_UART->BAUDDIV = 33;
if (TX_UART->BAUDDIV != 33) { err_code += (1<<0);}
RX_UART->BAUDDIV = 33;
if (RX_UART->BAUDDIV != 33) { err_code += (1<<1);}
puts ("- TX irq enable");
if (CMSDK_UART==CMSDK_UART0){
uart0_irq_expected=1;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXP1_IRQn);
}
if (CMSDK_UART==CMSDK_UART1){
uart0_irq_expected=0;
uart1_irq_expected=1;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXP3_IRQn);
}
TX_UART->CTRL = UART_CTRL_TXEN | UART_CTRL_TXIRQEN;
RX_UART->CTRL = UART_CTRL_RXEN;
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) |
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* Starting state incorrect */
err_code += (1<<2);}
TX_UART->DATA = 'A'; /* transmit a character */
delay_for_character();
if (CMSDK_UART==CMSDK_UART0){
if (uart0_irq_occurred==0){ err_code += (1<<3);}
if (uart1_irq_occurred!=0){ err_code += (1<<4);}
}
if (CMSDK_UART==CMSDK_UART1){
if (uart1_irq_occurred==0){ err_code += (1<<3);}
if (uart0_irq_occurred!=0){ err_code += (1<<4);}
}
/* Interrupt status should have been cleared */
if (TX_UART->INTSTATUS != 0) { err_code += (1<<5);}
if (RX_UART->INTSTATUS != 0) { err_code += (1<<6);}
/* Receive buffer should have been full */
if ((RX_UART->STATE & UART_STATE_RXFULL) == 0) { err_code += (1<<7);}
ctmp = RX_UART->DATA;
if (ctmp!='A') { err_code += (1<<8);}
if ((RX_UART->STATE & UART_STATE_RXFULL) != 0) { err_code += (1<<9);}
puts ("- TX irq disable");
if (CMSDK_UART==CMSDK_UART0){
uart0_irq_expected=0;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXP1_IRQn);
}
if (CMSDK_UART==CMSDK_UART1){
uart0_irq_expected=0;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXP3_IRQn);
}
TX_UART->CTRL = UART_CTRL_TXEN; /* No interrupt generation */
RX_UART->CTRL = UART_CTRL_RXEN; /* No interrupt generation */
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* Starting state incorrect */
err_code += (1<<10);}
TX_UART->DATA = 'B'; /* transmit a character */
delay_for_character();
if (uart0_irq_occurred!=0){ err_code += (1<<11);}
if (uart1_irq_occurred!=0){ err_code += (1<<12);}
/* Receive buffer should have been full */
if ((RX_UART->STATE & UART_STATE_RXFULL) == 0) { err_code += (1<<13);}
ctmp = RX_UART->DATA;
if (ctmp!='B') { err_code += (1<<14);}
if ((RX_UART->STATE & UART_STATE_RXFULL) != 0) { err_code += (1<<15);}
/* Interrupt status should have been cleared */
if (TX_UART->INTSTATUS != 0) { err_code += (1<<16);}
if (RX_UART->INTSTATUS != 0) { err_code += (1<<17);}
puts ("- RX irq enable");
if (CMSDK_UART==CMSDK_UART0){
uart0_irq_expected=0;
uart1_irq_expected=1;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXP3_IRQn);
}
if (CMSDK_UART==CMSDK_UART1){
uart0_irq_expected=1;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXP0_IRQn);
}
TX_UART->CTRL = UART_CTRL_TXEN ; /* No interrupt generation */
RX_UART->CTRL = UART_CTRL_RXEN | UART_CTRL_RXIRQEN;
TX_UART->DATA = 'C'; /* transmit a character */
delay_for_character();
if (CMSDK_UART==CMSDK_UART0){
if (uart0_irq_occurred!=0){ err_code += (1<<18);}
if (uart1_irq_occurred==0){ err_code += (1<<19);}
}
if (CMSDK_UART==CMSDK_UART1){
if (uart1_irq_occurred!=0){ err_code += (1<<18);}
if (uart0_irq_occurred==0){ err_code += (1<<19);}
}
/* Interrupt status should have been cleared */
if (TX_UART->INTSTATUS != 0) { err_code += (1<<20);}
if (RX_UART->INTSTATUS != 0) { err_code += (1<<21);}
/* Receive buffer should have been full */
if ((RX_UART->STATE & UART_STATE_RXFULL) == 0) { err_code += (1<<22);}
ctmp = RX_UART->DATA;
if (ctmp!='C') { err_code += (1<<23);}
if ((RX_UART->STATE & UART_STATE_RXFULL) != 0) { err_code += (1<<24);}
puts ("- RX irq disable");
uart0_irq_expected=0;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
TX_UART->CTRL = UART_CTRL_TXEN; /* No interrupt generation */
RX_UART->CTRL = UART_CTRL_RXEN; /* No interrupt generation */
if (((TX_UART->STATE & UART_STATE_TXFULL)!=0) ||
((RX_UART->STATE & UART_STATE_RXFULL)!=0)) {
/* Starting state incorrect */
err_code += (1<<25);}
TX_UART->DATA = 'D'; /* transmit a character */
delay_for_character();
if (uart0_irq_occurred!=0){ err_code += (1<<26);}
if (uart1_irq_occurred!=0){ err_code += (1<<27);}
/* Receive buffer should have been full */
if ((RX_UART->STATE & UART_STATE_RXFULL) == 0) { err_code += (1<<28);}
ctmp = RX_UART->DATA;
if (ctmp!='D') { err_code += (1<<29);}
if ((RX_UART->STATE & UART_STATE_RXFULL) != 0) { err_code += (1<<30);}
/* Interrupt status should have been cleared */
if ((TX_UART->INTSTATUS != 0)||(RX_UART->INTSTATUS != 0)) { err_code |= 0x80000000UL;}
/* clean up */
TX_UART->CTRL = 0;
RX_UART->CTRL = 0;
while ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
ctmp=RX_UART->DATA;
}
NVIC_DisableIRQ(EXP0_IRQn);
NVIC_DisableIRQ(EXP3_IRQn);
NVIC_DisableIRQ(EXP1_IRQn);
NVIC_DisableIRQ(EXP3_IRQn);
if (err_code != 0) {
printf ("ERROR : uart interrupt enable failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* UART tx & rx overflow test */
/* --------------------------------------------------------------- */
int uart_tx_rx_overflow_test(CMSDK_UART_TypeDef *CMSDK_UART)
{
int return_val=0;
int err_code=0;
CMSDK_UART_TypeDef *TX_UART;
CMSDK_UART_TypeDef *RX_UART;
char ctmp;
int i;
/* Determine which UART is the sender, and which UART is receiver */
if (CMSDK_UART==CMSDK_UART0){
TX_UART = CMSDK_UART0;
RX_UART = CMSDK_UART1;
}
else if (CMSDK_UART==CMSDK_UART1){
TX_UART = CMSDK_UART1;
RX_UART = CMSDK_UART0;
}
else {
puts ("ERROR: Input parameter invalid in function 'uart_tx_rx_overflow_test'.");
return 1;
}
puts ("UART TX & RX overflow test");
/* UART programmed with same baud rate */
TX_UART->BAUDDIV = 34;
if (TX_UART->BAUDDIV != 34) { err_code += (1<<0);}
RX_UART->BAUDDIV = 34;
if (RX_UART->BAUDDIV != 34) { err_code += (1<<1);}
puts ("- TX without overflow");
uart0_irq_expected=0;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
TX_UART->CTRL = UART_CTRL_TXEN ; /* No interrupt generation */
RX_UART->CTRL = UART_CTRL_RXEN ; /* No interrupt generation */
TX_UART->DATA = 'A';
TX_UART->DATA = 'B';
if ((TX_UART->STATE & UART_STATE_TXOVR)!=0) { err_code += (1<<2);}
for (i=0; i<2;i++) {
while ((RX_UART->STATE & UART_STATE_RXFULL)==0); /* wait for data */
ctmp= RX_UART->DATA;
if (i==0) {
if (ctmp!='A') { err_code += (1<<3);}
}
if (i==1) {
if (ctmp!='B') { err_code += (1<<4);}
}
}
if ((RX_UART->STATE != 0)||(TX_UART->STATE != 0)) { err_code += (1<<5);}
puts ("- TX with overflow");
TX_UART->DATA = 'A';
TX_UART->DATA = 'B';
TX_UART->DATA = 'C';
if ((TX_UART->STATE & UART_STATE_TXOVR)==0) { err_code += (1<<6);}
for (i=0; i<2;i++) {
while ((RX_UART->STATE & UART_STATE_RXFULL)==0); /* wait for data */
ctmp= RX_UART->DATA;
if (i==0) {
if (ctmp!='A') { err_code += (1<<7);}
}
/* if i=1, data unpredictable */
}
/* Overrun state should stay high */
if ((TX_UART->STATE & UART_STATE_TXOVR)==0) { err_code += (1<<8);}
/* Overrun interrupt status should be low because TX overrun interrupt is not set */
if ((TX_UART->INTSTATUS & UART_INTSTATE_TXOVR)!=0) { err_code += (1<<9);}
TX_UART->CTRL = UART_CTRL_TXEN | UART_CTRL_TXOVRIRQEN; /* Enable overflow interrupt generation */
/* Overrun interrupt status should be high now */
if ((TX_UART->INTSTATUS & UART_INTSTATE_TXOVR)==0) { err_code += (1<<10);}
/* enable the overflow interrupt in NVIC to trigger the overflow interrupt */
if (CMSDK_UART==CMSDK_UART0){
uart0_irq_expected=1;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXPC_IRQn);
}
if (CMSDK_UART==CMSDK_UART1){
uart0_irq_expected=0;
uart1_irq_expected=1;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXPD_IRQn);
}
__DSB();
__ISB();
/* The interrupt should be taken */
/* Overrun state should be cleared by interrupt handler */
if ((TX_UART->STATE & UART_STATE_TXOVR)!=0) { err_code += (1<<11);}
/* interrupt handler should be executed once */
if ((CMSDK_UART==CMSDK_UART0)&&(uart0_irq_occurred==0)) { err_code += (1<<12);}
if ((CMSDK_UART==CMSDK_UART1)&&(uart1_irq_occurred==0)) { err_code += (1<<12);}
TX_UART->CTRL = UART_CTRL_TXEN ; /* No interrupt generation */
RX_UART->CTRL = UART_CTRL_RXEN ; /* No interrupt generation */
NVIC_DisableIRQ(EXPC_IRQn);
NVIC_DisableIRQ(EXPD_IRQn);
uart0_irq_expected = 0;
uart1_irq_expected = 0;
puts ("- RX overflow");
TX_UART->DATA = 'A';
TX_UART->DATA = 'B';
/* TX overflow should not occur */
if ((TX_UART->STATE & UART_STATE_TXOVR)!=0) { err_code += (1<<13);}
/* wait until RX buffer full */
while ((RX_UART->STATE & UART_STATE_RXFULL)==0);
/* Should not overflow yet */
if ((RX_UART->STATE & UART_STATE_RXOVR)!=0) { err_code += (1<<14);}
/* wait until RX overflow */
while ((RX_UART->STATE & UART_STATE_RXOVR)==0);
/* RX overflow interrupt should be low because RX overflow interrupt enable is not set */
if ((RX_UART->INTSTATUS & UART_INTSTATE_RXOVR)!=0) { err_code += (1<<15);}
RX_UART->CTRL = UART_CTRL_RXEN | UART_CTRL_RXOVRIRQEN; /* Enable overflow interrupt generation */
/* Overrun interrupt status should be high now */
if ((RX_UART->INTSTATUS & UART_INTSTATE_RXOVR)==0) { err_code += (1<<16);}
/* enable the overflow interrupt in NVIC to trigger the overflow interrupt */
if (CMSDK_UART==CMSDK_UART0){
uart0_irq_expected=0;
uart1_irq_expected=1;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXPD_IRQn);
}
if (CMSDK_UART==CMSDK_UART1){
uart0_irq_expected=1;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
NVIC_EnableIRQ(EXPC_IRQn);
}
__DSB();
__ISB();
/* The interrupt should be taken */
/* Overrun state should be cleared by interrupt handler */
if ((RX_UART->STATE & UART_STATE_RXOVR)!=0) { err_code += (1<<17);}
/* interrupt handler should be executed once */
if ((CMSDK_UART==CMSDK_UART0)&&(uart1_irq_occurred==0)) { err_code += (1<<18);}
if ((CMSDK_UART==CMSDK_UART1)&&(uart0_irq_occurred==0)) { err_code += (1<<18);}
/* clean up */
uart0_irq_expected=0;
uart1_irq_expected=0;
uart0_irq_occurred=0;
uart1_irq_occurred=0;
TX_UART->CTRL = 0;
RX_UART->CTRL = 0;
while ((RX_UART->STATE & UART_STATE_RXFULL)!=0) {
ctmp=RX_UART->DATA;
}
NVIC_DisableIRQ(EXPC_IRQn);
NVIC_DisableIRQ(EXPD_IRQn);
if (err_code != 0) {
printf ("ERROR : uart overflow test failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* UART 2 interrupt connectivity test */
/* --------------------------------------------------------------- */
int uart2_interrupt_test(void){
int return_val=0;
int err_code=0;
int i;
char volatile ctmp; /* dummy variable for overflow test (data can be corrupted so it is not checked) */
puts ("UART 2 interrupt connectivity test");
puts ("- UART 2 TX IRQ");
CMSDK_UART2->CTRL = UART_CTRL_TXEN | UART_CTRL_TXIRQEN | UART_CTRL_HIGHSPEEDTX;
NVIC_EnableIRQ(UARTTX2_IRQn);
uart2_irq_expected = 1;
UartPutc('.');
for (i=0; i<3;i++){ __ISB(); } /* small delay */
CMSDK_UART2->CTRL = UART_CTRL_TXEN | UART_CTRL_HIGHSPEEDTX;
if (uart2_irq_occurred==0) { err_code += (1<<0);}
uart2_irq_occurred = 0;
NVIC_DisableIRQ(UARTTX2_IRQn);
puts ("\n- UART 2 TX overflow IRQ");
NVIC_EnableIRQ(UARTOVF2_IRQn);
CMSDK_UART2->CTRL = UART_CTRL_TXEN | UART_CTRL_TXOVRIRQEN | UART_CTRL_HIGHSPEEDTX;
CMSDK_UART2->DATA = '.';
CMSDK_UART2->DATA = '.';
CMSDK_UART2->DATA = '.';
for (i=0; i<3;i++){ __ISB(); } /* small delay */
if (uart2_irq_occurred==0) { err_code += (1<<1);}
uart2_irq_occurred = 0;
NVIC_DisableIRQ(UARTOVF2_IRQn);
puts ("\n- UART 2 RX IRQ");
/* UART 2 RXD is shared with GPIO1[4] */
CMSDK_GPIO1->OUTENABLESET = (1<<4);
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT | (1<<4);
NVIC_EnableIRQ(UARTRX2_IRQn);
CMSDK_UART2->CTRL = UART_CTRL_TXEN | UART_CTRL_RXEN | UART_CTRL_RXIRQEN | UART_CTRL_HIGHSPEEDTX;
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT & ~(1<<4);
for (i=0; i<2;i++){ __ISB(); } /* small delay to create start bit */
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT | (1<<4);
delay_for_character();
if (uart2_irq_occurred==0) { err_code += (1<<2);}
if ((CMSDK_UART2->STATE & UART_STATE_RXFULL)==0) { err_code += (1<<3);}
ctmp=CMSDK_UART2->DATA;
/*printf ("Receive data = 0x%x\n", ctmp);*/
uart2_irq_occurred = 0;
NVIC_DisableIRQ(UARTRX2_IRQn);
puts ("\n- UART 2 RX overflow IRQ");
NVIC_EnableIRQ(UARTOVF2_IRQn);
CMSDK_UART2->CTRL = UART_CTRL_TXEN | UART_CTRL_RXEN | UART_CTRL_RXOVRIRQEN | UART_CTRL_HIGHSPEEDTX;
/* First character */
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT & ~(1<<4);
for (i=0; i<2;i++){ __ISB(); } /* small delay to create start bit */
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT | (1<<4);
delay_for_character();
/* Second character */
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT & ~(1<<4);
for (i=0; i<2;i++){ __ISB(); } /* small delay to create start bit */
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT | (1<<4);
delay_for_character();
if (uart2_irq_occurred==0) { err_code += (1<<4);}
/* Remove receive data in buffer */
while ((CMSDK_UART2->STATE & UART_STATE_RXFULL)!=0) {
ctmp=CMSDK_UART2->DATA;
}
/* clear up */
uart2_irq_occurred = 0;
NVIC_DisableIRQ(UARTOVF2_IRQn);
CMSDK_UART2->CTRL = UART_CTRL_TXEN | UART_CTRL_HIGHSPEEDTX;
CMSDK_GPIO1->OUTENABLECLR = (1<<4);
CMSDK_GPIO1->DATAOUT = CMSDK_GPIO1->DATAOUT & ~(1<<4);
uart2_irq_expected = 0;
if (err_code != 0) {
printf ("ERROR : uart overflow test failed (0x%x)\n", err_code);
return_val =1;
err_code = 0;
}
return(return_val);
}
/* --------------------------------------------------------------- */
/* delay function to provide delay for one character */
/* --------------------------------------------------------------- */
void delay_for_character(void)
{
int i;
for (i=0; i<120;i++){
__ISB();
}
return;
}
/* --------------------------------------------------------------- */
/* Peripheral ID detection to check if device is present */
/* --------------------------------------------------------------- */
int uart0_id_check(void)
{
if ((HW32_REG(CMSDK_UART0_BASE + 0xFE0) != 0x21) ||
(HW32_REG(CMSDK_UART0_BASE + 0xFE4) != 0xB8))
return 1; /* part ID does not match */
else
return 0;
}
int uart1_id_check(void)
{
if ((HW32_REG(CMSDK_UART1_BASE + 0xFE0) != 0x21) ||
(HW32_REG(CMSDK_UART1_BASE + 0xFE4) != 0xB8))
return 1; /* part ID does not match */
else
return 0;
}
int gpio1_id_check(void)
{
if ((HW32_REG(CMSDK_GPIO1_BASE + 0xFE0) != 0x20) ||
(HW32_REG(CMSDK_GPIO1_BASE + 0xFE4) != 0xB8))
return 1; /* part ID does not match */
else
return 0;
}
/* --------------------------------------------------------------- */
/* UART interrupt handlers */
/* --------------------------------------------------------------- */
void UARTRX0_Handler(void)
{
int err_code = 0;
if (uart0_irq_expected==0) {err_code += (1<<0);}
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_RX)==0) {err_code += (1<<1);}
CMSDK_UART0->INTCLEAR = UART_INTSTATE_RX; /* Clear interrupt status */
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_RX)!=0) {err_code += (1<<2);}
uart0_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 0 RX handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTTX0_Handler(void)
{
int err_code = 0;
if (uart0_irq_expected==0) {err_code += (1<<0);}
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_TX)==0) {err_code += (1<<1);}
CMSDK_UART0->INTCLEAR = UART_INTSTATE_TX; /* Clear interrupt status */
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_TX)!=0) {err_code += (1<<2);}
uart0_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 0 TX handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTRX1_Handler(void)
{
int err_code = 0;
if (uart1_irq_expected==0) {err_code += (1<<0);}
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_RX)==0) {err_code += (1<<1);}
CMSDK_UART1->INTCLEAR = UART_INTSTATE_RX; /* Clear interrupt status */
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_RX)!=0) {err_code += (1<<2);}
uart1_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 1 RX handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTTX1_Handler(void)
{
int err_code = 0;
if (uart1_irq_expected==0) {err_code += (1<<0);}
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_TX)==0) {err_code += (1<<1);}
CMSDK_UART1->INTCLEAR = UART_INTSTATE_TX; /* Clear interrupt status */
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_TX)!=0) {err_code += (1<<2);}
uart1_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 1 TX handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTOVF0_Handler(void)
{
int err_code = 0;
if (uart0_irq_expected==0) {err_code += (1<<0);}
if (((CMSDK_UART0->INTSTATUS & UART_INTSTATE_TXOVR)==0) &
((CMSDK_UART0->INTSTATUS & UART_INTSTATE_RXOVR)==0)) {err_code += (1<<1);}
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_TXOVR)!=0){
CMSDK_UART0->STATE = UART_STATE_TXOVR; /* Clear TX overrun status */
}
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_RXOVR)!=0){
CMSDK_UART0->STATE = UART_STATE_RXOVR; /* Clear RX overrun status */
}
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_TXOVR)!=0) {err_code += (1<<2);}
if ((CMSDK_UART0->INTSTATUS & UART_INTSTATE_RXOVR)!=0) {err_code += (1<<3);}
uart0_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 0 overrun handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
} return;
}
void UARTOVF1_Handler(void)
{
int err_code = 0;
if (uart1_irq_expected==0) {err_code += (1<<0);}
if (((CMSDK_UART1->INTSTATUS & UART_INTSTATE_TXOVR)==0) &
((CMSDK_UART1->INTSTATUS & UART_INTSTATE_RXOVR)==0)) {err_code += (1<<1);}
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_TXOVR)!=0){
CMSDK_UART1->STATE = UART_STATE_TXOVR; /* Clear TX overrun status */
}
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_RXOVR)!=0){
CMSDK_UART1->STATE = UART_STATE_RXOVR; /* Clear RX overrun status */
}
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_TXOVR)!=0) {err_code += (1<<2);}
if ((CMSDK_UART1->INTSTATUS & UART_INTSTATE_RXOVR)!=0) {err_code += (1<<3);}
uart1_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 1 overrun handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTRX2_Handler(void)
{
int err_code = 0;
if (uart2_irq_expected==0) {err_code += (1<<0);}
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_RX)==0) {err_code += (1<<1);}
CMSDK_UART2->INTCLEAR = UART_INTSTATE_RX; /* Clear interrupt status */
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_RX)!=0) {err_code += (1<<2);}
uart2_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 2 RX handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTTX2_Handler(void)
{
int err_code = 0;
if (uart2_irq_expected==0) {err_code += (1<<0);}
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_TX)==0) {err_code += (1<<1);}
CMSDK_UART2->INTCLEAR = UART_INTSTATE_TX; /* Clear interrupt status */
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_TX)!=0) {err_code += (1<<2);}
uart2_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 2 TX handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}
void UARTOVF2_Handler(void)
{
int err_code = 0;
if (uart2_irq_expected==0) {err_code += (1<<0);}
if (((CMSDK_UART2->INTSTATUS & UART_INTSTATE_TXOVR)==0) &
((CMSDK_UART2->INTSTATUS & UART_INTSTATE_RXOVR)==0)) {err_code += (1<<1);}
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_TXOVR)!=0){
CMSDK_UART2->STATE = UART_STATE_TXOVR; /* Clear TX overrun status */
}
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_RXOVR)!=0){
CMSDK_UART2->STATE = UART_STATE_RXOVR; /* Clear RX overrun status */
}
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_TXOVR)!=0) {err_code += (1<<2);}
if ((CMSDK_UART2->INTSTATUS & UART_INTSTATE_RXOVR)!=0) {err_code += (1<<3);}
uart2_irq_occurred++;
if (err_code != 0) {
printf ("ERROR : UART 2 overrun handler failed (0x%x)\n", err_code);
UartEndSimulation();
while(1);
}
return;
}