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flipchip_tester_ESP32_v02.ino
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flipchip_tester_ESP32_v02.ino
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// Flip Chip Tester, port of Stearns Tester code to ESP32 on Arduino
//
//#include <iostream>
/************************************************************************/
/* */
/* tester.c PDP-8 card tester via SPI */
/* */
/* */
/* compile with Microsoft C 1.52 with command line: */
/* cl /W4 /AL tester.c */
/* */
/************************************************************************/
#include "FS.h"
#include "SD.h"
#include "SPI.h"
//#define VERSION_STRING "version 0.91 November 27, 2015"
#define VERSION_STRING "version v02 October 11, 2022"
//#define _CRT_SECURE_NO_WARNINGS 1 /* disable Microsoft 'old library' warnings */
// define MCP chip addresses
#define IC1 1
#define IC2 2
#define IC3 3
#define IC4 4
#define IC5 5
#define IODIR_AB 0
#define GPPUA_AB 0x0c
#define GPIO_AB 0x12
const int onboard_ledPin = 2;
const int SDchipSelectPin = 4;
const int MCPchipSelectIC1 = 21;
const int MCPchipSelectIC2 = 17;
const int MCPchipSelectIC3 = 16;
const int MCPchipSelectIC4 = 15;
const int MCPchipSelectIC5 = 22;
const int MCPnresetPin = 5;
//#define SERIAL_TIMEOUT 600000
#define LOG_FILENAME "tester.log"
char print_buffer[1024];
//char print_buffer[512];
File file_test;
// modification to the original print function
// outputs a char array called "buffer" to the console and to the Log File
//
void print(const char* pbuffer)
{
Serial.print(String(pbuffer));
//appendFile(SD, LOG_FILENAME, buffer);
}
// function to print a char buffer
//void print(const char* buffer)
//{
// printST(string(buffer));
//}
String millis2time() {
String Time = "";
unsigned long ss;
byte mm, hh, dd;
ss = millis() / 1000;
dd = ss / 86400;
hh = (ss - dd * 86400) / 3600;
mm = (ss - dd * 86400 - hh * 3600) / 60;
ss = (ss - dd * 86400 - hh * 3600) - mm * 60;
Time += (String)dd + ":";
if (hh < 10)Time += "0";
Time += (String)hh + ":";
if (mm < 10)Time += "0";
Time += (String)mm + ":";
if (ss < 10)Time += "0";
Time += (String)ss;
return Time;
}
void str_to_upr(char * cbuffer)
{
while(*cbuffer != '\0'){
if((*cbuffer >= 'a') && (*cbuffer <= 'z')) *cbuffer = *cbuffer & 0xdf;
cbuffer++;
}
}
void sd_fgets(char * sdfgbuffer, int sd_buffer_size/*, file_test*/)
{
int sdcharcount = 1;
char *sdbufferpointer;
//Serial.println("sd_fgets called");
sdbufferpointer = sdfgbuffer;
while(file_test.available()){
*sdbufferpointer = file_test.read();
if(*sdbufferpointer == '\n') break;
//if(*sdbufferpointer == '\r') break;
if(*sdbufferpointer == '\0') break;
if(++sdcharcount >= sd_buffer_size) break;
if(*sdbufferpointer != '\r')
++sdbufferpointer;
}
*sdbufferpointer = '\0';
//Serial.println("sd_fgets exit [" + String(sdcharcount) + "]: " + String(sdfgbuffer));
}
void print_timestamp(void)
{
#define TIME_BUFFER_LENGTH 26
//uint32_t now_time32; /* MSVC 1.52 is only 32 bit times. BLOWS UP in 2038 */
char time_buffer[TIME_BUFFER_LENGTH];
char* ptr;
//time(&now_time32);
String time_since_boot = millis2time();
//strcpy(time_buffer, ctime(&now_time32)); /* ctime() returns pointer to static 26 character string */
// copy the time_since_boot String to the time_buffer char array
time_since_boot.toCharArray(time_buffer, TIME_BUFFER_LENGTH);
ptr = strchr(time_buffer, '\n'); // these two lines are from the original code, probably no longer needed
if (ptr != (char*)NULL) *ptr = '\0';
print(time_buffer);
}
// Function to write to the MCP23S17
// parameters are chip address, register address, register data
//
void mcpwrite(uint16_t chipaddr, uint16_t regaddr, uint16_t regdata) {
//MCP23S17 write to IC chipaddr, register pair regaddr, with regdata
switch(chipaddr){ // assert the chip select signal of the specified MCP chip
case IC1:
digitalWrite(MCPchipSelectIC1, LOW);
break;
case IC2:
digitalWrite(MCPchipSelectIC2, LOW);
break;
case IC3:
digitalWrite(MCPchipSelectIC3, LOW);
break;
case IC4:
digitalWrite(MCPchipSelectIC4, LOW);
break;
case IC5:
digitalWrite(MCPchipSelectIC5, LOW);
break;
default:
print("broken sofware, invalid MCP chip address");
}
SPI.transfer16(0x4000 | (chipaddr << 9) | regaddr); //Device Opcode, Chip Address, Write, Reg Addr
//SPI.transfer16(0x4000 | regaddr); //Device Opcode, Write, Reg Addr
SPI.transfer16(regdata); // Register Data
digitalWrite(MCPchipSelectIC1, HIGH);
digitalWrite(MCPchipSelectIC2, HIGH);
digitalWrite(MCPchipSelectIC3, HIGH);
digitalWrite(MCPchipSelectIC4, HIGH);
digitalWrite(MCPchipSelectIC5, HIGH);
}
// Function to read from the MCP23S17
// parameters are chip address, register address
// returns 16-bit value read from the specified chip and register
//
uint16_t mcpread(uint16_t chipaddr, uint16_t regaddr) {
//MCP23S17 read from IC chipaddr, register pair regaddr, with regdata
uint16_t mcp_read_data;
switch(chipaddr){ // assert the chip select signal of the specified MCP chip
case IC1:
digitalWrite(MCPchipSelectIC1, LOW);
break;
case IC2:
digitalWrite(MCPchipSelectIC2, LOW);
break;
case IC3:
digitalWrite(MCPchipSelectIC3, LOW);
break;
case IC4:
digitalWrite(MCPchipSelectIC4, LOW);
break;
case IC5:
digitalWrite(MCPchipSelectIC5, LOW);
break;
default:
print("broken sofware, invalid MCP chip address");
}
SPI.transfer16(0x4100 | (chipaddr << 9) | regaddr); //Device Opcode, Chip Address, Read, Reg Addr
//SPI.transfer16(0x4100 | regaddr); //Device Opcode, Read, Reg Addr
mcp_read_data = SPI.transfer16(0x0000); //sending dummy data to read the port
digitalWrite(MCPchipSelectIC1, HIGH);
digitalWrite(MCPchipSelectIC2, HIGH);
digitalWrite(MCPchipSelectIC3, HIGH);
digitalWrite(MCPchipSelectIC4, HIGH);
digitalWrite(MCPchipSelectIC5, HIGH);
return(mcp_read_data);
}
//unsigned short lpt_base = 0x378; /* LPT1 on Dell D610 */
/*
unsigned char lpt_value_last_data_out;
unsigned char lpt_value_last_control_out;
unsigned char lpt_value_new_data;
unsigned char lpt_value_new_control;
unsigned char lpt_value_status_last_read;
unsigned char lpt_value_data_last_read;
unsigned char lpt_value_control_last_read;
void lpt_input_data(void)
{
//lpt_value_data_last_read = (unsigned char)_inp(lpt_base + 0);
}
void lpt_input_status(void)
{
//lpt_value_status_last_read = (unsigned char)_inp(lpt_base + 1);
}
void lpt_input_control(void)
{
//lpt_value_control_last_read = (unsigned char)_inp(lpt_base + 2);
}
void lpt_output_data(void)
{
lpt_value_last_data_out = lpt_value_new_data;
//_outp(lpt_base + 0, lpt_value_last_data_out);
}
void lpt_output_control(void)
{
lpt_value_last_control_out = lpt_value_new_control;
//_outp(lpt_base + 2, lpt_value_last_control_out);
}
void lpt_init(void)
{
lpt_input_data();
lpt_input_control();
lpt_input_status();
lpt_value_new_data = lpt_value_data_last_read;
lpt_value_new_control = lpt_value_control_last_read;
lpt_output_data();
lpt_output_control();
}
*/
/* routines that stage next output or use last input */
/*
void lpt_set_data_bit(unsigned int bit_number)
{
if (bit_number > 7)
{
print("ERROR: broken software\r\n");
exit(1);
}
lpt_value_new_data |= (1 << bit_number);
}
void lpt_clr_data_bit(unsigned int bit_number)
{
if (bit_number > 7)
{
print("ERROR: broken software\r\n");
exit(1);
}
lpt_value_new_data &= ~(1 << bit_number);
}
void lpt_set_control_bit(unsigned int bit_number)
{
if (bit_number > 7)
{
print("ERROR: broken software\r\n");
exit(1);
}
lpt_value_new_control |= (1 << bit_number);
}
void lpt_clr_control_bit(unsigned int bit_number)
{
if (bit_number > 7)
{
print("ERROR: broken software\r\n");
exit(1);
}
lpt_value_new_control &= ~(1 << bit_number);
}
void lpt_toggle_data_bit(unsigned int bit_number)
{
if (bit_number > 7)
{
print("ERROR: broken software\r\n");
exit(1);
}
lpt_value_new_data ^= (1 << bit_number);
}
void lpt_toggle_control_bit(unsigned int bit_number)
{
if (bit_number > 7)
{
print("ERROR: broken software\r\n");
exit(1);
}
lpt_value_new_control ^= (1 << bit_number);
}
*/
//#define SPI_SPARE_PIN_1_LO (lpt_set_control_bit( 0 )) /* pin 1 C0- -Strobe */
//#define SPI_SPARE_PIN_1_HI (lpt_clr_control_bit( 0 )) /* pin 1 C0- -Strobe */
//#define SPI_RESET_N_PIN_2_LO (lpt_clr_data_bit( 0 )) /* pin 2 D0+ +Data0 */
//#define SPI_RESET_N_PIN_2_HI (lpt_set_data_bit( 0 )) /* pin 2 D0+ +Data0 */
//#define SPI_CS_N_PIN_3_LO (lpt_clr_data_bit( 1 )) /* pin 3 D1+ +Data1 */
//#define SPI_CS_N_PIN_3_HI (lpt_set_data_bit( 1 )) /* pin 3 D1+ +Data1 */
//#define SPI_CLK_PIN_4_LO (lpt_clr_data_bit( 2 )) /* pin 4 D2+ +Data2 */
//#define SPI_CLK_PIN_4_HI (lpt_set_data_bit( 2 )) /* pin 4 D2+ +Data2 */
//#define SPI_SO_A_PIN_5_LO (lpt_clr_data_bit( 3 )) /* pin 5 D3+ +Data3 */
//#define SPI_SO_A_PIN_5_HI (lpt_set_data_bit( 3 )) /* pin 5 D3+ +Data3 */
//#define SPI_SO_B_PIN_6_LO (lpt_clr_data_bit( 4 )) /* pin 6 D4+ +Data4 */
//#define SPI_SO_B_PIN_6_HI (lpt_set_data_bit( 4 )) /* pin 6 D4+ +Data4 */
//#define SPI_SO_C_PIN_7_LO (lpt_clr_data_bit( 5 )) /* pin 7 D5+ +Data5 */
//#define SPI_SO_C_PIN_7_HI (lpt_set_data_bit( 5 )) /* pin 7 D5+ +Data5 */
//#define SPI_SO_D_PIN_8_LO (lpt_clr_data_bit( 6 )) /* pin 8 D6+ +Data6 */
//#define SPI_SO_D_PIN_8_HI (lpt_set_data_bit( 6 )) /* pin 8 D6+ +Data6 */
//#define SPI_SO_E_PIN_9_LO (lpt_clr_data_bit( 7 )) /* pin 9 D7+ +Data7 */
//#define SPI_SO_E_PIN_9_HI (lpt_set_data_bit( 7 )) /* pin 9 D7+ +Data7 */
//#define SPI_SI_D_PIN_10_IN ((lpt_value_status_last_read & (1 << 6)) ? 1 : 0) /* pin 10 S6+ -Ack */
//#define SPI_SI_E_PIN_11_IN ((lpt_value_status_last_read & (1 << 7)) ? 0 : 1) /* pin 11 S7- +Busy */
//#define SPI_SI_C_PIN_12_IN ((lpt_value_status_last_read & (1 << 5)) ? 1 : 0) /* pin 12 S5+ +PaperEnd */
//#define SPI_SI_B_PIN_13_IN ((lpt_value_status_last_read & (1 << 4)) ? 1 : 0) /* pin 13 S4+ +SelectIn */
//#define SPI_SPARE_PIN_14_LO (lpt_set_control_bit( 1 )) /* pin 14 C1- -AutoFd */
//#define SPI_SPARE_PIN_14_HI (lpt_clr_control_bit( 1 )) /* pin 14 C1- -AutoFd */
//#define SPI_SI_A_PIN_15_IN ((lpt_value_status_last_read & (1 << 3)) ? 1 : 0) /* pin 15 S3+ -Error */
//#define SPI_SPARE_PIN_16_LO (lpt_clr_control_bit( 2 )) /* pin 16 C2+ -Init */
//#define SPI_SPARE_PIN_16_HI (lpt_set_control_bit( 2 )) /* pin 16 C2+ -Init */
//#define SPI_SPARE_PIN_17_LO (lpt_set_control_bit( 3 )) /* pin 17 C3- -Select */
//#define SPI_SPARE_PIN_17_HI (lpt_clr_control_bit( 3 )) /* pin 17 C3- -Select */
/* pins 18 thru 25 are ground */
//void spi_output(void)
//{
// lpt_output_data();
//}
//void spi_input(void)
//{
// lpt_input_status();
//}
//void spi_init(void)
//{
// lpt_init();
//
// SPI_SPARE_PIN_1_LO; /* spare lo */
// SPI_RESET_N_PIN_2_HI; /* reset-n hi */
// SPI_CS_N_PIN_3_HI; /* remove chip select */
// SPI_CLK_PIN_4_HI; /* clock hi */
// SPI_SO_A_PIN_5_LO; /* data out lo */
// SPI_SO_B_PIN_6_LO; /* data out lo */
// SPI_SO_C_PIN_7_LO; /* data out lo */
// SPI_SO_D_PIN_8_LO; /* data out lo */
// SPI_SO_E_PIN_9_LO; /* data out lo */
// SPI_SI_D_PIN_10_IN; /* input */
// SPI_SI_E_PIN_11_IN; /* input */
// SPI_SI_C_PIN_12_IN; /* input */
// SPI_SI_B_PIN_13_IN; /* input */
// SPI_SPARE_PIN_14_LO; /* spare lo */
// SPI_SI_A_PIN_15_IN; /* input */
// SPI_SPARE_PIN_16_LO; /* spare lo */
// SPI_SPARE_PIN_17_LO; /* spare lo */
// spi_output();
//}
//void spi_open(void)
//{
// SPI_CS_N_PIN_3_LO; /* apply chip select */
// spi_output();
//}
//void spi_close(void)
//{
// SPI_CS_N_PIN_3_HI; /* remove chip select */
// spi_output();
//}
//void spi_txrx(unsigned char* out_ptr, unsigned char* in_ptr)
//{
// int i;
// unsigned char mask;
//
// for (i = 0; i < 5; i++) in_ptr[i] = 0; /* zero input array */
// mask = 0x80; /* MSB first */
// do
// {
// if (out_ptr[0] & mask) SPI_SO_A_PIN_5_HI; else SPI_SO_A_PIN_5_LO;
// if (out_ptr[1] & mask) SPI_SO_B_PIN_6_HI; else SPI_SO_B_PIN_6_LO;
// if (out_ptr[2] & mask) SPI_SO_C_PIN_7_HI; else SPI_SO_C_PIN_7_LO;
// if (out_ptr[3] & mask) SPI_SO_D_PIN_8_HI; else SPI_SO_D_PIN_8_LO;
// if (out_ptr[4] & mask) SPI_SO_E_PIN_9_HI; else SPI_SO_E_PIN_9_LO;
// SPI_CLK_PIN_4_LO;
// spi_output();
//
// SPI_CLK_PIN_4_HI; /* rising edge */
// spi_output();
// spi_input();
//
// if (SPI_SI_A_PIN_15_IN == 0) in_ptr[0] |= mask;
// if (SPI_SI_B_PIN_13_IN == 0) in_ptr[1] |= mask;
// if (SPI_SI_C_PIN_12_IN == 0) in_ptr[2] |= mask;
// if (SPI_SI_D_PIN_10_IN == 0) in_ptr[3] |= mask;
// if (SPI_SI_E_PIN_11_IN == 0) in_ptr[4] |= mask;
//
// mask >>= 1;
// } while (mask);
//}
// MCP23S17 Register Address definitions for IOCON.BANK = 0
// The A & B registers are in the same bank, not separated into different banks
// This is best for the tester so that A & B can be written and read using a single 16-bit SPI transfer
// These are the original register definitions, not changed for Arduino, just added the header comments.
//
#define REG_IODIR 0x00 /* I/O direction (1=in) */
#define REG_IOPOL 0x02 /* I/O polarity */
#define REG_GPINTEN 0x04 /* interrupt enables */
#define REG_DEFVAL 0x06 /* default values */
#define REG_INTCON 0x08 /* interrupt config */
#define REG_IOCON 0x0A /* I/O config */
#define REG_GPPU 0x0C /* pullup enables */
#define REG_INTF 0x0E /* interrupt flag */
#define REG_INTCAP 0x10 /* interrupt capture */
#define REG_GPIO 0x12 /* input/output */
#define REG_OLAT 0x14 /* output latches */
// Print the name of the MCP23S17 register specified by the "reg" parameter
// the register LSB is removed in this function so the name is not specific to A or B
//
void print_reg_name(unsigned char reg)
{
switch (reg & 0xFE)
{
case REG_IODIR: print("IODIR "); break;
case REG_IOPOL: print("IOPOL "); break;
case REG_GPINTEN: print("GPINTEN"); break;
case REG_DEFVAL: print("DEFVAL "); break;
case REG_INTCON: print("INTCON "); break;
case REG_IOCON: print("IOCON "); break;
case REG_GPPU: print("GPPU "); break;
case REG_INTF: print("INTF "); break;
case REG_INTCAP: print("INTCAP "); break;
case REG_GPIO: print("GPIO "); break;
case REG_OLAT: print("OLAT "); break;
default: print("???????"); break;
}
}
// reg_init() is from the original code.
// It asserts reset for 100 msec and de-asserts reset for an additional 100 msec.
// The MCP23S17 resets when RESET/ is asserted for > 1 usec so use the Arduino delay
// function to delay 2 msec to guarantee the delay is at least 1 msec, far more than 1 usec
//
void reg_init(void) /* initialize GPIO chip registers */
{
digitalWrite(MCPchipSelectIC1, LOW); // drive all five chip selects inactive, not sure if it's necessary
digitalWrite(MCPchipSelectIC2, LOW);
digitalWrite(MCPchipSelectIC3, LOW);
digitalWrite(MCPchipSelectIC4, LOW);
digitalWrite(MCPchipSelectIC5, LOW);
digitalWrite(MCPnresetPin, LOW); // set MCP not-reset to the active (LOW) state
delay(2); //delay 2 msec to hold not-reset LOW
digitalWrite(MCPnresetPin, HIGH); // restore MCP not-reset to the inactive (HIGH) state
digitalWrite(MCPchipSelectIC1, HIGH); //drive all five MCP chip selects inactive
digitalWrite(MCPchipSelectIC2, HIGH);
digitalWrite(MCPchipSelectIC3, HIGH);
digitalWrite(MCPchipSelectIC4, HIGH);
digitalWrite(MCPchipSelectIC5, HIGH);
delay(2); //delay 2 msec to hold not-reset HIGH after reset
MCPinitializeIOCON(); // initializes BANK and HAEN
// unsigned long i;
//
// spi_init(); /* initialize SPI signals */
//
//#define RESET_LOOPS 20000UL /* 20,000 is about 100ms on D610,WinXp,allowio */
// for (i = 0; i < RESET_LOOPS; i++)
// {
// SPI_RESET_N_PIN_2_LO; /* reset active */
// spi_output();
// spi_input();
// }
// for (i = 0; i < RESET_LOOPS; i++)
// {
// SPI_RESET_N_PIN_2_HI; /* reset inactive */
// spi_output();
// spi_input();
// }
}
// function to read from the registers in all 5 MCP23S17 chips
// "reg" specifies the register address, "value" is an array to return the 5 data values
// that were read... one value for each chip. value[0] is from IC1 and value[4] is from IC5.
// The addresses of the MCP chips are numbered 1 through 5, corresponding to the IC numbers.
// This function has been converted to use the Arduino SPI hardware and accesses
// each MCP chip individually.
//
void reg_read(unsigned char reg, unsigned int* value)
{
// "old" code for the PC parallel port is commented out
//unsigned int i;
unsigned int chipaddress;
unsigned int tempreadvalue; // because tester code expects A reg in the low byte and B reg in the high byte
//unsigned char rx_array[5];
//unsigned char tx_array[5];
//spi_open();
//for (i = 0; i < 5; i++) tx_array[i] = 0x4F; /* b0 = 1 read */
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) tx_array[i] = reg;
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) tx_array[i] = 0x5A;
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) value[i] = (unsigned int)rx_array[i];
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) value[i] |= (unsigned int)rx_array[i] << 8;
//spi_close();
for(chipaddress = IC1; chipaddress <= IC5; chipaddress++){
// Exchange the high and low byte of the data value because tester code expects
// the A reg in the low byte of the mapping and the B reg in the high byte of the mapping.
// However, SPI serializes the high byte first to the A register, then the low byte to the B register.
tempreadvalue = mcpread(chipaddress, reg);
value[chipaddress - 1] = ((tempreadvalue << 8) & 0xff00) | ((tempreadvalue >> 8) & 0xff);
}
}
// function to write to the registers in all 5 MCP23S17 chips
// "reg" specifies the register address, "value" is an array of 5 data values
// to be written... one for each chip. value[0] to IC1 and value[4] to IC5.
// The addresses of the MCP chips are numbered 1 through 5, corresponding to the IC numbers.
// This function has been converted to use the Arduino SPI hardware and accesses
// each MCP chip individually.
//
void reg_write(unsigned char reg, unsigned int* value)
{
// "old" code for the PC parallel port is commented out
//unsigned int i;
unsigned int chipaddress;
unsigned int flippedvalue; // because tester code expects A reg in the low byte and B reg in the high byte
//unsigned char rx_array[5];
//unsigned char tx_array[5];
//spi_open();
//for (i = 0; i < 5; i++) tx_array[i] = 0x4E; /* b0 = 0 write */
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) tx_array[i] = reg;
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) tx_array[i] = (unsigned char)(value[i]);
//spi_txrx(tx_array, rx_array);
//for (i = 0; i < 5; i++) tx_array[i] = (unsigned char)(value[i] >> 8);
//spi_txrx(tx_array, rx_array);
//spi_close();
for(chipaddress = IC1; chipaddress <= IC5; chipaddress++){
// Exchange the high and low byte of the data value because the tester code expects
// the A reg in the low byte of the mapping and the B reg in the high byte of the mapping.
// However, SPI serializes the high byte first to the A register, then the low byte to the B register.
flippedvalue = ((value[chipaddress - 1] << 8) & 0xff00) | ((value[chipaddress - 1] >> 8) & 0xff);
mcpwrite(chipaddress, reg, flippedvalue);
}
}
unsigned int reg_init_and_verify(void) /* returns 0 if okay */
{
unsigned int result;
unsigned int i;
unsigned int data_in[5];
unsigned int uTemp;
reg_init();
for (i = 0; i < 5; i++) data_in[i] = 0;
reg_read(REG_IODIR, data_in);
//Serial.println(String("IODIR ")+String(data_in[0],HEX)+String(" ")+String(data_in[1],HEX)+String(" ")+String(data_in[2],HEX)+String(" ")+String(data_in[3],HEX)+String(" ")+String(data_in[4],HEX));
uTemp = 0xFFFF;
for (i = 0; i < 5; i++) uTemp &= data_in[i]; /* s/b FFFFs */
//Serial.println(String("uTemp after IODIR read test: ")+String(uTemp,HEX));
reg_read(REG_OLAT, data_in);
//Serial.println(String("OLAT ")+String(data_in[0],HEX)+String(" ")+String(data_in[1],HEX)+String(" ")+String(data_in[2],HEX)+String(" ")+String(data_in[3],HEX)+String(" ")+String(data_in[4],HEX));
uTemp = (~uTemp); /* s/b 0000 */
for (i = 0; i < 5; i++) uTemp |= data_in[i]; /* s/b 0000s */
//Serial.println(String("uTemp after OLAT read test: ")+String(uTemp,HEX));
//if (uTemp == 0x0000)
if ((uTemp & 0xffff) == 0x0000) // must test only the least significant 16 bits
{
result = 0; /* no error */
}
else
{
result = 1; /* error */
print("\r\n");
print("\r\n");
print("***************************************************************************\r\n");
print("* did not verify registers after initialize (chip reset). *\r\n");
print("* check that the tester is cabled to LPT port and that the power is on. *\r\n");
print("***************************************************************************\r\n");
print("\r\n");
print("\r\n");
}
return (result);
}
const char edge_pins[19] = "ABCDEFHJKLMNPRSTUV";
#define PIN_DRIVERS 80
#define TEST_COLUMNS 72
const struct
{
unsigned int offset;
unsigned int mask;
} mapping[PIN_DRIVERS] = /* 80 pin drivers */
{
{ 0, (1U << 15) }, /* AA1 */ /* PIN 0 */
{ 0, (1U << 14) }, /* AB1 */
{ 0, (1U << 13) }, /* AC1 */
{ 0, (1U << 12) }, /* AD1 */
{ 0, (1U << 11) }, /* AE1 */
{ 0, (1U << 10) }, /* AF1 */ /* PIN 5 */
{ 0, (1U << 9) }, /* AH1 */
{ 0, (1U << 8) }, /* AJ1 */
{ 1, (1U << 15) }, /* AK1 */
{ 1, (1U << 14) }, /* AL1 */
{ 1, (1U << 13) }, /* AM1 */ /* PIN 10 */
{ 1, (1U << 12) }, /* AN1 */
{ 1, (1U << 11) }, /* AP1 */
{ 1, (1U << 10) }, /* AR1 */
{ 1, (1U << 9) }, /* AS1 */
{ 1, (1U << 8) }, /* AT1 */ /* PIN 15 is PIN_GROUND_AT1 */
{ 2, (1U << 15) }, /* AU1 */
{ 2, (1U << 14) }, /* AV1 */
{ 0, (1U << 7) }, /* AA2 */ /* PIN 18 is PIN_POWER_AA2 */
{ 0, (1U << 6) }, /* AB2 */
{ 0, (1U << 5) }, /* AC2 */ /* PIN 20 is PIN_GROUND_AC2 */
{ 0, (1U << 4) }, /* AD2 */
{ 0, (1U << 3) }, /* AE2 */
{ 0, (1U << 2) }, /* AF2 */
{ 0, (1U << 1) }, /* AH2 */
{ 0, (1U << 0) }, /* AJ2 */ /* PIN 25 */
{ 1, (1U << 0) }, /* AK2 */
{ 1, (1U << 1) }, /* AL2 */
{ 1, (1U << 2) }, /* AM2 */
{ 1, (1U << 3) }, /* AN2 */
{ 1, (1U << 4) }, /* AP2 */ /* PIN 30 */
{ 1, (1U << 5) }, /* AR2 */
{ 1, (1U << 6) }, /* AS2 */
{ 1, (1U << 7) }, /* AT2 */
{ 2, (1U << 0) }, /* AU2 */
{ 2, (1U << 1) }, /* AV2 */ /* PIN 35 */
{ 2, (1U << 13) }, /* BA1 */ /* PIN 36 */
{ 2, (1U << 12) }, /* BB1 */
{ 2, (1U << 11) }, /* BC1 */
{ 2, (1U << 10) }, /* BD1 */
{ 2, (1U << 9) }, /* BE1 */ /* PIN 40 */
{ 2, (1U << 8) }, /* BF1 */
{ 3, (1U << 15) }, /* BH1 */
{ 3, (1U << 14) }, /* BJ1 */
{ 3, (1U << 13) }, /* BK1 */
{ 3, (1U << 12) }, /* BL1 */ /* PIN 45 */
{ 3, (1U << 11) }, /* BM1 */
{ 3, (1U << 10) }, /* BN1 */
{ 3, (1U << 9) }, /* BP1 */
{ 3, (1U << 8) }, /* BR1 */
{ 4, (1U << 15) }, /* BS1 */ /* PIN 50 */
{ 4, (1U << 14) }, /* BT1 */ /* PIN 51 is PIN_GROUND_BT1 */
{ 4, (1U << 13) }, /* BU1 */
{ 4, (1U << 12) }, /* BV1 */
{ 2, (1U << 2) }, /* BA2 */ /* PIN 54 is PIN_POWER_BA2_NC (no connection) */
{ 2, (1U << 3) }, /* BB2 */ /* PIN 55 */
{ 2, (1U << 4) }, /* BC2 */ /* PIN 56 is PIN_GROUND_BC2 */
{ 2, (1U << 5) }, /* BD2 */
{ 2, (1U << 6) }, /* BE2 */
{ 2, (1U << 7) }, /* BF2 */
{ 3, (1U << 0) }, /* BH2 */ /* PIN 60 */
{ 3, (1U << 1) }, /* BJ2 */
{ 3, (1U << 2) }, /* BK2 */
{ 3, (1U << 3) }, /* BL2 */
{ 3, (1U << 4) }, /* BM2 */
{ 3, (1U << 5) }, /* BN2 */ /* PIN 65 */
{ 3, (1U << 6) }, /* BP2 */
{ 3, (1U << 7) }, /* BR2 */
{ 4, (1U << 0) }, /* BS2 */
{ 4, (1U << 1) }, /* BT2 */
{ 4, (1U << 2) }, /* BU2 */ /* PIN 70 */
{ 4, (1U << 3) }, /* BV2 */
{ 4, (1U << 4) }, /* PROBE_1 */ /* PIN 72 */
{ 4, (1U << 5) }, /* PROBE_2 */
{ 4, (1U << 6) }, /* PROBE_3 */
{ 4, (1U << 7) }, /* PROBE_4 */ /* PIN 75 */
{ 4, (1U << 8) }, /* GREEN LED */
{ 4, (1U << 9) }, /* RED LED */
{ 4, (1U << 10) }, /* YELLOW LED */
{ 4, (1U << 11) }, /* RED2 LED */
};
#define PIN_GROUND_AT1 15
#define PIN_GROUND_AC2 20
#define PIN_GROUND_BT1 51
#define PIN_GROUND_BC2 56
unsigned int ground_pin[] =
{
PIN_GROUND_AT1,
PIN_GROUND_AC2,
PIN_GROUND_BT1,
PIN_GROUND_BC2,
};
#define NUMBER_GROUND_PINS (sizeof(ground_pin) / sizeof(ground_pin[0]))
#define PIN_POWER_AA2 18
unsigned int power_pin[1] =
{
PIN_POWER_AA2,
};
#define NUMBER_POWER_PINS (sizeof(power_pin) / sizeof(power_pin[0]))
#define PIN_POWER_BA2_NC 54 /* no connect, so just make it an output lo */
#define PIN_LED_GREEN 76
#define PIN_LED_RED 77
#define PIN_LED_YELLOW 78
#define PIN_LED_RED2 79
unsigned tester_output_lo[] =
{
PIN_POWER_BA2_NC,
PIN_LED_GREEN,
PIN_LED_RED,
PIN_LED_YELLOW,
PIN_LED_RED2,
};
#define NUMBER_OUTPUT_LO_PINS (sizeof(tester_output_lo) / sizeof(tester_output_lo[0]))
#define PIN_PROBE_1 72
#define PIN_PROBE_2 73
#define PIN_PROBE_3 74
#define PIN_PROBE_4 75
unsigned int tester_input_w_pullup[] =
{
PIN_PROBE_1,
PIN_PROBE_2,
PIN_PROBE_3,
PIN_PROBE_4,
};
#define NUMBER_INPUT_W_PULLUP (sizeof(tester_input_w_pullup) / sizeof(tester_input_w_pullup[0]))
char get_pin_type_char(unsigned int pin)
{
char result;
unsigned int i;
result = ' ';
for (i = 0; i < NUMBER_GROUND_PINS; i++)
{
if (pin == ground_pin[i]) result = 'G';
}
for (i = 0; i < NUMBER_POWER_PINS; i++)
{
if (pin == power_pin[i]) result = 'P';
}
for (i = 0; i < NUMBER_OUTPUT_LO_PINS; i++)
{
if (pin == tester_output_lo[i]) result = 'T';
}
for (i = 0; i < NUMBER_INPUT_W_PULLUP; i++)
{
if (pin == tester_input_w_pullup[i]) result = 'T';
}
return (result);
}
void set_default_directions(unsigned int* data_out)
{
unsigned int i;
unsigned int pin;
for (i = 0; i < 5; i++)
{
data_out[i] = 0xFFFF; /* all inputs */
}
for (i = 0; i < NUMBER_OUTPUT_LO_PINS; i++)
{
pin = tester_output_lo[i];
data_out[mapping[pin].offset] &= (~mapping[pin].mask);
}
}
void set_default_outputs(unsigned int* data_out)
{
unsigned int i;
for (i = 0; i < 5; i++)
{
data_out[i] = 0; /* all outputs lo */
}
}
void set_default_pullups(unsigned int* data_out)
{
unsigned int i;
unsigned int pin;
for (i = 0; i < 5; i++)
{
data_out[i] = 0; /* all pullups off */
}
for (i = 0; i < NUMBER_INPUT_W_PULLUP; i++)
{
pin = tester_input_w_pullup[i];
data_out[mapping[pin].offset] &= mapping[pin].mask;
}
}
unsigned int verify_power(unsigned int* data_in) /* !=0 if okay */
{
unsigned int result;
unsigned int i;
unsigned int pin;
//Serial.println(String("verify_power 0x")+String(data_in[0],HEX)+String(" 0x")+String(data_in[1],HEX)+String(" 0x")+String(data_in[2],HEX)+String(" 0x")+String(data_in[3],HEX)+String(" 0x")+String(data_in[4],HEX));
result = 1; /* assume okay */
for (i = 0; i < NUMBER_GROUND_PINS; i++)
{
pin = ground_pin[i];
if ((data_in[mapping[pin].offset] & mapping[pin].mask) != 0) result = 0;
//Serial.println(String(" ground pin result: 0x")+String(result,HEX)+String(" index = ")+String(i));
}
//Serial.println(String("verify_power ground pin result: ")+String(result,HEX));
for (i = 0; i < NUMBER_POWER_PINS; i++)
{
pin = power_pin[i];
//Serial.println(String(" pin: ")+String(pin));
//Serial.println(String(" data_in[mapping[pin].offset]: 0x")+String(data_in[mapping[pin].offset],HEX)+String(", mapping[pin].mask: 0x")+String(mapping[pin].mask,HEX));
if ((data_in[mapping[pin].offset] & mapping[pin].mask) == 0) result = 0;
//Serial.println(String(" power pin result: ")+String(result,HEX)+String(" index = ")+String(i));
}
//Serial.println(String("verify_power power pin result: ")+String(result,HEX));
return (result);
}
void set_default_used(unsigned int* used)
{
unsigned int i;
unsigned int pin;
for (i = 0; i < 5; i++) used[i] = 0x0000;
for (i = 0; i < NUMBER_GROUND_PINS; i++)
{
pin = ground_pin[i];
used[mapping[pin].offset] |= mapping[pin].mask;
}
for (i = 0; i < NUMBER_POWER_PINS; i++)
{
pin = power_pin[i];
used[mapping[pin].offset] |= mapping[pin].mask;
}
for (i = 0; i < NUMBER_OUTPUT_LO_PINS; i++)
{
pin = tester_output_lo[i];
used[mapping[pin].offset] |= mapping[pin].mask;
}
for (i = 0; i < NUMBER_INPUT_W_PULLUP; i++)
{
pin = tester_input_w_pullup[i];
used[mapping[pin].offset] |= mapping[pin].mask;
}
}
void stage_pin(unsigned int pin, unsigned int flag, unsigned int* data_out)
{
if (flag)
{
data_out[mapping[pin].offset] |= mapping[pin].mask;
}
else
{
data_out[mapping[pin].offset] &= (~mapping[pin].mask);
}
}
void verify_mapping(void)
{
int i;
unsigned int temp[5];
unsigned int offset;
unsigned int mask;
for (i = 0; i < 5; i++) temp[i] = 0;
for (i = 0; i < PIN_DRIVERS; i++)
{
offset = mapping[i].offset;
if (offset > 4)
{
sprintf(print_buffer, "broken software: mapping[%u].offset is bad\r\n", i);
print(print_buffer);
exit(1);
}
/* expect one and only one bit in the mask */
mask = mapping[i].mask;
mask = mask & (unsigned)(-(signed)mask); /* keeps lowest bit that is set */
if ((mask == 0) || (mask != mapping[i].mask)) /* no bits or more than one bit? */
{
sprintf(print_buffer, "broken software: mapping[%u].mask is bad\r\n", i);
print(print_buffer);
exit(1);
}
if (temp[offset] & mask) /* mask already used? */
{
sprintf(print_buffer, "broken software: mapping[%u] is bad (already used)\r\n", i);
print(print_buffer);
exit(1);
}
temp[offset] |= mask;
}
print("\r\n");
for (i = 0; i < 5; i++)
{
if (temp[i] != 0xFFFF)
{
print("broken software: mapping[] does not define all 80 bits\r\n");
exit(1);
}
}
print("mapping[] is verified\r\n");
}
void print_bin8(unsigned char data)
{
unsigned char mask;
mask = 0x80;
do
{
sprintf(print_buffer, "%1d", data & mask ? 1 : 0);
print(print_buffer);
mask >>= 1;
} while (mask);
}