void dbg(char *format, ...)
{
char c[256];
va_list args;
va_start(args, format);
vsprintf(c, format, args);
va_end(args);
DBPUTS(c);
}
// Adjust st7565 resistor ratio and "volume"
void contrastSetup()
{
char s[256];
uint8_t tmp8;
DBPUTS("Enter resistor ratio (0..7)...");
DBGETS(s, sizeof(s));
tmp8 = s[0] - '0'; //
if(tmp8 < 8)
{
lcdCmd(cRESISTOR_RATIO | tmp8);
DBPRINTF("Set to %d.\n", tmp8);
}
else
{
DBPUTS("Invalid range.\n");
}
DBPUTS("Enter volume (0..63)...");
DBGETS(s, sizeof(s));
tmp8 = atoi(s); //
if(tmp8 < 64)
{
lcdCmd(cVOLUME);
lcdCmd(tmp8);
DBPRINTF("Set to %d.\n", tmp8);
}
else
{
DBPUTS("Invalid range.\n");
}
// Clear the do-user-input flag
//DoUserUserInputSemaphore = 0;
}
// main() ---------------------------------------------------------------------
//
int main(void)
{
int pbClk; // Peripheral bus clock
// Configure the device for maximum performance, but do not change
// the PBDIV clock divisor. Given the options, this function will
// change the program Flash wait states, RAM wait state and enable
// prefetch cache, but will not change the PBDIV. The PBDIV value
// is already set via the pragma FPBDIV option above.
pbClk = SYSTEMConfig(CPU_HZ, SYS_CFG_WAIT_STATES | SYS_CFG_PCACHE);
// The pic32 has 2 programming i/f's: ICD/ICSP and JTAG. The
// starter kit uses JTAG, whose pins are muxed w/ RA0,1,4 & 5.
// If we wanted to disable JTAG to use those pins, we'd need:
#if defined M4557_DUINOMITE
DDPCONbits.JTAGEN = 0; // Disable the JTAG port.
#endif
// Pins that share ANx functions (analog inputs) will default to
// analog mode (AD1PCFG = 0x0000) on reset. To enable digital I/O
// Set all ones in the ADC Port Config register. (I think it's always
// PORTB that is shared with the ADC inputs). PORT B is NOT 5v tolerant!
// Also, RB6 & 7 are the ICD/ICSP lines.
AD1PCFG = 0xffff; // Port B as digital i/o.
//Initialize the DB_UTILS IO channel
DBINIT();
#if defined ST7565_M4557_PROTOTYPE_STARTERKIT
// Enable pullup resistors for Starter Kit's 3 switches.
//CNPUE = (CN15_PULLUP_ENABLE | CN16_PULLUP_ENABLE | CN19_PULLUP_ENABLE);
mCNOpen(CN_ON, CN15_ENABLE | CN16_ENABLE,
CN15_PULLUP_ENABLE | CN16_PULLUP_ENABLE | CN19_PULLUP_ENABLE);
// Read the port to clear any mismatch on change notice pins
dummy = mPORTDRead();
// Clear change notice interrupt flag
ConfigIntCN(CHANGE_INT_ON | CHANGE_INT_PRI_2);
// Ok now to enable multi-vector interrupts
INTEnableSystemMultiVectoredInt();
// Display the introduction
DBPUTS("SW1:Set contrast; SW2:Halt display\n");
//DBPRINTF("DBPRINTF: The build date and time is (" __DATE__ "," __TIME__ ")\n");
// Init ports for ST7565 parallel prototype setup (using pic32 starter kit
// and i/o expansion board): TODO: This belongs somewhere else!!
//
// PIC32 NHD Display
// RB10 /CS1, /RES, A0, /WR, /RD
// RE0..7 D0..7
LATBSET = 0x7C00; // Set the control bits high (inactive)
TRISBCLR = 0x7C00; // Set the control bits as outputs.
// Init ESI touch-screen controller's (TSC2046) CS line as output
LATFSET = BIT_5; // Set CSn inactive...
TRISFCLR = BIT_5; // and set as output
// Data is on port E. The LCD controller (ST7565) uses its parallel
// mode on port E, RE0..7. The touch screen controller shares port
// shares a serial interface on some of these bits.
TRISECLR = 0x00ff; // Set the cmd/data bits as outputs.
#elif defined M4557_DUINOMITE
// Init ports for the M4557.
//
// Control bits are on port B:
//
// bit M4557 function
// ---- --------------
// 3 /CS1 - LCD Chip sel (ST7565 controller)
// 4 /RES - Reset
// 6 A0 -
// 7 /WR - Write
// 9 /RD - Read
// 10 /TPCS - Touch panel Chip Sel (TSC2046)
//
// Set the control bits low, and enable as outputs.
LATBSET = (BIT_3|BIT_4|BIT_6|BIT_7|BIT_9|BIT_10);
TRISBCLR = (BIT_3|BIT_4|BIT_6|BIT_7|BIT_9|BIT_10);
// Data is on port E. The LCD controller (ST7565) uses its parallel
// mode on port E, RE0..7. The touch screen controller shares port
// shares a serial interface on some of these bits.
TRISECLR = 0x00ff; // Set the cmd/data bits as outputs.
#else
#error Need product defined
#endif
Nop();
lcdInit(5,35); // Init lcd controller
Nop();
// Output Compare (PWM) pins
//
// OCn 64pin 100pin/port SKII-J11- Duinomite
// --- ----- ----------- -------------- ----------
// OC1 46 72/RD0 19 (LED1,Red) SOUND
// OC2 49 76/RD1 20 (LED2,Yel) D13,SD_CLK
// OC3 50 77/RD2 17 (LED3,Grn) D12,SD_MISO
// OC4 51 78/RD3 18 D11,SD_MOSI
// OC5 52 81 15 vga_hsync
//
// Init Timer 2 for use by the OC (PWM) module(s).
// This will set the PWM frequency, f = pbClk/reloadValue.
// Examples (pcClk = 40MHz):
// f = pbClk/100000 = 400Hz
// f = pbClk/10000 = 4kHz
// f = pbClk/2500 = 20kHz
//
//OpenTimer2(T2_ON | T2_32BIT_MODE_ON, 100000); // f = pbClk/100000 = 400Hz
//OpenTimer2(T2_ON | T2_32BIT_MODE_ON, 10000); // f = pbClk/10000 = 4kHz
OpenTimer2(T2_ON | T2_32BIT_MODE_ON, 2500); // f = pbClk/2500 = 16kHz
// I tried the uChip example using "OpenOC2", and as is ofter the
// case, I can't get it to work, the documentation is lacking, and
// it's easier to just read the datasheet and program the bloody
// OCxCON register directly.
//OpenOC2( OC_ON | OC_TIMER_MODE32 | OC_TIMER2_SRC | OC_CONTINUE_PULSE | OC_LOW_HIGH , 40000, 30000 );
SetDCOC2PWM(0);
OC2CON = 0x8026; // OC on; 32bit-mode; PWM mode.
SetDCOC3PWM(0);
OC3CON = 0x8026; // OC on; 32bit-mode; PWM mode.
/*
int testOnly = 1;
uint32_t loadVal = 0;
int i;
while(testOnly)
{
// Try the dimmer's 16 levels (0..15)
for(i=0; i<16; i++)
{
loadVal = pwmTable1[i];
SetDCOC2PWM(loadVal);
delay_ms(300);
}
}
CloseOC2();
*/
// Do ESI M4557 demo application (dimmer-control type demo w/ touchscreen)
esi_M4557();
return 0;
}