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allow non-standard digital control pins

This commit is contained in:
morgan 2019-01-29 20:09:42 -08:00
parent 6b05b7754d
commit 7427b426b1
5 changed files with 47 additions and 44 deletions
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7
examples/HandyTalkie/HandyTalkie.ino
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@ -20,6 +20,8 @@
// create object for radio
HamShield radio;
// To use non-standard pins, use the following initialization
//HamShield radio(ncs_pin, clk_pin, dat_pin);
#define LED_PIN 13
#define RSSI_REPORT_RATE_MS 5000
@ -50,9 +52,10 @@ void setup() {
// initialize serial communication
Serial.begin(9600);
Serial.println("press the switch to begin...");
Serial.println("press the switch or send any character to begin...");
while (digitalRead(SWITCH_PIN));
while (digitalRead(SWITCH_PIN) && !Serial.available());
Serial.read(); // flush
// let the AU ot of reset
digitalWrite(RESET_PIN, HIGH);

25
src/HamShield.cpp
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@ -120,40 +120,19 @@ const unsigned char AFSK_space[] PROGMEM = { 140, 228, 250, 166, 53, 0, 53, 166,
volatile int ptt = false;
volatile long bouncer = 0;
/** Default constructor, uses default I2C address.
* @see A1846S_DEFAULT_ADDRESS
*/
HamShield::HamShield() {
devAddr = A1; // devAddr is the chip select pin used by the HamShield
sHamShield = this;
pinMode(devAddr, OUTPUT);
digitalWrite(devAddr, HIGH);
pinMode(CLK, OUTPUT);
digitalWrite(CLK, HIGH);
pinMode(DAT, OUTPUT);
digitalWrite(DAT, HIGH);
}
/** Specific address constructor.
* @param chip select pin for HamShield
* @see A1846S_DEFAULT_ADDRESS
* @see A1846S_ADDRESS_AD0_LOW
* @see A1846S_ADDRESS_AD0_HIGH
*/
HamShield::HamShield(uint8_t cs_pin) {
HamShield::HamShield(uint8_t cs_pin = nSEN, uint8_t clk_pin = CLK, uint8_t dat_pin = DAT) {
devAddr = cs_pin;
pinMode(devAddr, OUTPUT);
digitalWrite(devAddr, HIGH);
pinMode(CLK, OUTPUT);
digitalWrite(CLK, HIGH);
pinMode(DAT, OUTPUT);
digitalWrite(DAT, HIGH);
HSsetPins(cs_pin, clk_pin, dat_pin);
}
/** Power on and prepare for general usage.
*
*/

3
src/HamShield.h
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@ -233,8 +233,7 @@ class HamShield {
// public singleton for ISRs to reference
static HamShield *sHamShield; // HamShield singleton, used for ISRs mostly
HamShield();
HamShield(uint8_t cs_pin);
HamShield(uint8_t cs_pin = nSEN, uint8_t clk_pin = CLK, uint8_t dat_pin = DAT);
void initialize(); // defaults to 12.5kHz
void initialize(bool narrowBand); // select 12.5kHz if true or 25kHz if false

52
src/HamShield_comms.cpp
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@ -4,6 +4,26 @@
#include "HamShield_comms.h"
uint8_t ncs_pin = nSEN;
uint8_t clk_pin = CLK;
uint8_t dat_pin = DAT;
void HSsetPins(uint8_t ncs, uint8_t clk, uint8_t dat) {
ncs_pin = ncs;
clk_pin = clk;
dat_pin = dat;
pinMode(ncs_pin, OUTPUT);
digitalWrite(ncs_pin, HIGH);
pinMode(clk_pin, OUTPUT);
digitalWrite(clk_pin, HIGH);
pinMode(dat_pin, OUTPUT);
digitalWrite(dat_pin, HIGH);
}
int8_t HSreadBitW(uint8_t devAddr, uint8_t regAddr, uint8_t bitNum, uint16_t *data)
{
uint16_t b;
@ -33,22 +53,22 @@ int8_t HSreadWord(uint8_t devAddr, uint8_t regAddr, uint16_t *data)
uint16_t temp_dat;
// bitbang for great justice!
*data = 0;
pinMode(DAT, OUTPUT);
pinMode(dat_pin, OUTPUT);
regAddr = regAddr | (1 << 7);
digitalWrite(devAddr, 0); //PORTC &= ~(1<<1); //devAddr used as chip select
for (int i = 0; i < 8; i++) {
temp = ((regAddr & (0x80 >> i)) != 0);
digitalWrite(CLK, 0); //PORTC &= ~(1<<5); //
digitalWrite(DAT, temp);
digitalWrite(CLK, 1); //PORTC |= (1<<5); //
digitalWrite(clk_pin, 0); //PORTC &= ~(1<<5); //
digitalWrite(dat_pin, temp);
digitalWrite(clk_pin, 1); //PORTC |= (1<<5); //
}
// change direction of DAT
pinMode(DAT, INPUT); // DDRC &= ~(1<<4); //
// change direction of dat_pin
pinMode(dat_pin, INPUT); // DDRC &= ~(1<<4); //
for (int i = 15; i >= 0; i--) {
digitalWrite(CLK, 0); //PORTC &= ~(1<<5); //
digitalWrite(CLK, 1); //PORTC |= (1<<5); //
temp_dat = digitalRead(DAT); //((PINC & (1<<4)) != 0);
digitalWrite(clk_pin, 0); //PORTC &= ~(1<<5); //
digitalWrite(clk_pin, 1); //PORTC |= (1<<5); //
temp_dat = digitalRead(dat_pin); //((PINC & (1<<4)) != 0);
temp_dat = temp_dat << i;
*data |= temp_dat;
}
@ -91,21 +111,21 @@ bool HSwriteWord(uint8_t devAddr, uint8_t regAddr, uint16_t data)
//digitalWrite(13, HIGH);
// bitbang for great justice!
pinMode(DAT, OUTPUT);
pinMode(dat_pin, OUTPUT);
regAddr = regAddr & ~(1 << 7);
digitalWrite(devAddr, 0); // PORTC &= ~(1<<1); //CS
for (int i = 0; i < 8; i++) {
temp_reg = ((regAddr & (0x80 >> i)) != 0);
digitalWrite(CLK, 0); //PORTC &= ~(1<<5); //
digitalWrite(DAT, regAddr & (0x80 >> i));
digitalWrite(CLK, 1); // PORTC |= (1<<5); //
digitalWrite(clk_pin, 0); //PORTC &= ~(1<<5); //
digitalWrite(dat_pin, regAddr & (0x80 >> i));
digitalWrite(clk_pin, 1); // PORTC |= (1<<5); //
}
for (int i = 0; i < 16; i++) {
temp_dat = ((data & (0x8000 >> i)) != 0);
digitalWrite(CLK, 0); //PORTC &= ~(1<<5); //
digitalWrite(DAT, temp_dat);
digitalWrite(CLK, 1); // PORTC |= (1<<5); //
digitalWrite(clk_pin, 0); //PORTC &= ~(1<<5); //
digitalWrite(dat_pin, temp_dat);
digitalWrite(clk_pin, 1); // PORTC |= (1<<5); //
}
digitalWrite(devAddr, 1); //PORTC |= (1<<1); //CS

2
src/HamShield_comms.h
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@ -11,6 +11,8 @@
#define CLK A5
#define DAT A4
void HSsetPins(uint8_t ncs, uint8_t clk, uint8_t dat);
int8_t HSreadBitW(uint8_t devAddr, uint8_t regAddr, uint8_t bitNum, uint16_t *data);
int8_t HSreadBitsW(uint8_t devAddr, uint8_t regAddr, uint8_t bitStart, uint8_t length, uint16_t *data);
int8_t HSreadWord(uint8_t devAddr, uint8_t regAddr, uint16_t *data);