#include "apps.h"
#include "glitch.h"
+#if (platform == tilaunchpad)
+#include <setjmp.h>
+jmp_buf warmstart;
+void coldstart();
+#include "msp430_serial.h"
+#endif
+
#define RESET 0x80 // not a real app -- causes firmware to reset
#define DEBUGAPP 0xFF
-//! Initialize registers and all that jazz.
-void init()
-{
-#ifdef DAC12IR
- int i;
+//! General init function, calls platform-specific one.
+void init(){
+#ifdef MSP430
+ #define INITCHIP msp430_init();
#endif
- WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
-
- //LED out and on.
- PLEDDIR |= PLEDPIN;
- PLEDOUT &= ~PLEDPIN;
-
-
- /* P5.0 out and low; this is chosen for the PIC app (in which P5.0
- is !MCLR) to ensure that an attached PIC chip, if present, is
- immediately driven to reset state. A brief explanation of why this
- is important follows.
-
- At least dsPIC33F and PIC24H --and very likely other 16-bit PIC
- families-- draw a large amount of current when running, especially
- when using a fast clock: from 60 mA up to approx. 90 mA. If the
- PIC target begins to run before the client can request a new ICSP
- session, which requires much less current (e.g., less than 2 mA),
- then the MSP430 chip on the GoodFET will fail to start and the FTDI
- may have trouble communicating with the client. The latter likely
- relates to the FTDI on-chip 3V3 regulator being specified up to
- only 50 mA. */
-
-
- //P5REN &= ~BIT0; //DO NOT UNCOMMENT. Breaks GF1x support.
-
- //This will have to be cut soon. Use pulling resistors instead.
- /*
- P5DIR |= BIT0;
- P5OUT &= ~BIT0;
- */
+#ifdef ARDUINO
+ #define INITCHIP arduino_init();
+#endif
- //Setup clocks, unique to each '430.
- msp430_init_dco();
- msp430_init_uart();
-
-
- //DAC should be at full voltage if it exists.
-#ifdef DAC12IR
- //glitchvoltages(0xfff,0xfff);
- ADC12CTL0 = REF2_5V + REFON; // Internal 2.5V ref on
- //for(i=0;i!=0xFFFF;i++) asm("nop"); //DO NOT UNCOMMENT, break GCC4.
- DAC12_0CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Int ref gain 1
- DAC12_0DAT = 0xFFF; //Max voltage 0xfff
- DAC12_1CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Int ref gain 1
- DAC12_1DAT = 0x000; //Min voltage 0x000
+#ifdef INITCHIP
+INITCHIP
+#else
+#warning "No init() routine for this platform!"
#endif
- /** FIXME
-
- This part is really ugly. GSEL (P5.7) must be high to select
- normal voltage, but a lot of applications like to swing it low
- to be a nuissance. To get around this, we assume that anyone
- with a glitching FET will also have a DAC, then we set that DAC
- to a high voltage.
-
- At some point, each target must be sanitized to show that it
- doesn't clear P5OUT or P5DIR.
- */
- P5DIR|=BIT7; P5OUT=BIT7; //Normal Supply
- //P5DIR&=~BIT7; //Glitch Supply
-
- //Enable Interrupts.
- //eint();
-
-
-
- #ifdef INITPLATFORM
- INITPLATFORM;
- #endif
+#ifdef INITPLATFORM
+ INITPLATFORM
+#endif
}
+
//! Handle a command.
void handle(uint8_t const app,
uint8_t const verb,
uint32_t const len){
int i;
-
+
//debugstr("GoodFET");
- PLEDOUT&=~PLEDPIN;
-
+ led_off();
+
// find the app and call the handle fn
for(i = 0; i < num_apps; i++){
if(apps[i]->app == app){
// call the app's handle fn
(*(apps[i]->handle))(app, verb, len);
-
+
// exit early
return;
}
//! Main loop.
-int main(void){
- volatile unsigned int i;
- unsigned char app, verb;
- unsigned long len;
- // MSP reboot count for reset input & reboot function located at 0xFFFE
- volatile unsigned int reset_count = 0;
- void (*reboot_function)(void) = (void *) 0xFFFE;
-
- init();
-
- txstring(MONITOR,OK,"http://goodfet.sf.net/");
-
- //Command loop. There's no end!
- while(1){
- //Magic 3
- app = serial_rx();
-
- // If the app is the reset byte (0x80) increment and loop
- if (app == RESET){
- reset_count++;
-
- if (reset_count > 4){
- // We could trigger the WDT with either:
- // WDTCTL = 0;
- // or
- // WDTCTL = WDTPW + WDTCNTCL + WDTSSEL + 0x00;
- // but instead we'll jump to our reboot function pointer
- (*reboot_function)();
- }
-
- continue;
- }else{
- reset_count = 0;
- }
-
- verb = serial_rx();
- //len=serial_rx();
- len = rxword();
-
- //Read data, looking for buffer overflow.y
- if(len <= CMDDATALEN){
- for(i = 0; i < len; i++){
- cmddata[i] = serial_rx();
- }
-
- handle(app,verb,len);
- }else{
- //Listen to the blaberring.
- for(i = 0; i < len; i++)
- serial_rx();
-
- //Reply with an error.
- debugstr("Buffer length exceeded.");
- txdata(MONITOR,NOK,0);
- }
- }
+int main(void)
+{
+ volatile unsigned int i;
+ unsigned char app, verb;
+ unsigned long len;
+ // MSP reboot count for reset input & reboot function located at 0xFFFE
+ volatile unsigned int reset_count = 0;
+#if (platform == tilaunchpad)
+ int ret=0;
+
+ //ret = setjmp(warmstart);// needs to be here since context from init() would be gone
+ warmstart:
+ if (ret == 0) {
+ coldstart(); // basic hardware setup, clock to TUSB3410, and enable
+ } else if (ret == 2) {
+ dputs("\nalmost BSL only one RTS change\n");
+ } else if (ret > 2) { // reset released after more than two tst transisitions
+ // We could write a BSL, a nice exercise for a Sunday afternoon.
+ dputs("\nBSL\n");
+ //call_BSL(); // once you are done uncomment ;-)
+ } else { // we come here after DTR high (release reset)
+ dputs("\nWarmstart\n");
+ }
+#else
+ void (*reboot_function)(void) = (void *) 0xFFFE;
+#endif
+ init();
+
+ txstring(MONITOR,OK,"http://goodfet.sf.net/");
+ #ifdef ECHOTEST
+ while(1) serial0_tx(serial0_rx());
+ #endif
+
+ //Command loop. There's no end!
+ while(1)
+ {
+ //Magic 3
+ app = serial_rx();
+
+ // If the app is the reset byte (0x80) increment and loop
+ if (app == RESET)
+ {
+ reset_count++;
+
+ if (reset_count > 4)
+ {
+ // We could trigger the WDT with either:
+ // WDTCTL = 0;
+ // or
+ // WDTCTL = WDTPW + WDTCNTCL + WDTSSEL + 0x00;
+ // but instead we'll jump to our reboot function pointer
+ #ifdef MSP430
+#if (platform == tilaunchpad)
+ // do we really need this, we do not want to reset the TUSB3410
+ dputs("reset_count>4\n");
+
+ //longjmp(warmstart,111);
+ goto warmstart;
+
+#else
+ (*reboot_function)();
+#endif
+ #else
+ debugstr("Rebooting not supported on this platform.");
+ #endif
+ }
+
+ continue;
+ }
+ else
+ {
+ reset_count = 0;
+ }
+
+ verb = serial_rx();
+ len = rxword();
+
+ //Read data, looking for buffer overflow.y
+ if(len <= CMDDATALEN)
+ {
+ for(i = 0; i < len; i++)
+ {
+ cmddata[i] = serial_rx();
+ }
+
+ handle(app,verb,len);
+ }
+ else
+ {
+ //Listen to the blaberring.
+ for(i = 0; i < len; i++)
+ serial_rx();
+
+ //Reply with an error.
+ debugstr("Buffer length exceeded.");
+ txdata(MONITOR,NOK,0);
+ }
+ }
}
projects / goodfet / blobdiff