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| author | cpldcpu <cpldcpu@gmail.com> | 2015-07-26 19:40:45 +0200 |
|---|---|---|
| committer | cpldcpu <cpldcpu@gmail.com> | 2015-07-26 19:40:45 +0200 |
| commit | 8fd935fa941ba3844818a3b739de26cdbe5892e4 (patch) | |
| tree | 1cc6cf9b5a7ff32ab25021edb44582ed5c3a7ffd | |
| parent | d59e4e6f23a2bccba9c2a68a315ebf394a17f914 (diff) | |
| download | micronucleus-8fd935fa941ba3844818a3b739de26cdbe5892e4.tar.gz micronucleus-8fd935fa941ba3844818a3b739de26cdbe5892e4.tar.bz2 micronucleus-8fd935fa941ba3844818a3b739de26cdbe5892e4.zip | |
firmware: Fix D+ noise sensitivity issue
| -rw-r--r-- | firmware/main.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/firmware/main.c b/firmware/main.c index fdf22e4..80b5d3a 100644 --- a/firmware/main.c +++ b/firmware/main.c @@ -1,7 +1,7 @@ /* - * Project: Micronucleus - v2.0 + * Project: Micronucleus - v2.1 * - * Micronucleus V2.0 (c) 2014 Tim Bo"scke - cpldcpu@gmail.com + * Micronucleus V2.1 (c) 2015 Tim Bo"scke - cpldcpu@gmail.com * (c) 2014 Shay Green * Original Micronucleus (c) 2012 Jenna Fox * @@ -12,7 +12,7 @@ */ #define MICRONUCLEUS_VERSION_MAJOR 2 -#define MICRONUCLEUS_VERSION_MINOR 0 +#define MICRONUCLEUS_VERSION_MINOR 1 #include <avr/io.h> #include <avr/pgmspace.h> @@ -232,7 +232,7 @@ int main(void) { uint8_t osccal_tmp; bootLoaderInit(); - + /* save default OSCCAL calibration */ #if OSCCAL_RESTORE_DEFAULT osccal_default = OSCCAL; @@ -266,10 +266,10 @@ int main(void) { // adjust fastctr for 5ms timeout uint16_t fastctr=(uint16_t)(F_CPU/(1000.0f*15.0f/5.0f)); - uint8_t resetctr=20; + uint8_t resetctr=100; do { - if ((USBIN & USBMASK) !=0) resetctr=20; + if ((USBIN & USBMASK) !=0) resetctr=100; if (!--resetctr) { // reset encountered usbNewDeviceAddr = 0; // bits from the reset handling of usbpoll() @@ -280,7 +280,8 @@ int main(void) { } if (USB_INTR_PENDING & (1<<USB_INTR_PENDING_BIT)) { - USB_INTR_VECTOR(); // clears INT_PENDING (See se0: in asmcommon.inc) + USB_INTR_VECTOR(); + USB_INTR_PENDING = 1<<USB_INTR_PENDING_BIT; // Clear int pending, in case timeout occured during SYNC idlePolls.b[1]=0; // reset idle polls when we get usb traffic break; } @@ -335,8 +336,8 @@ int main(void) { LED_MACRO( idlePolls.b[0] ); // Test whether another interrupt occurred during the processing of USBpoll and commands. - // If yes, we missed a data packet on the bus. Wait until the bus was idle for 10µs to - // allow synchronising to the next incoming packet. + // If yes, we missed a data packet on the bus. Wait until the bus was idle for 8.8µs to + // allow synchronising to the next incoming packet. if (USB_INTR_PENDING & (1<<USB_INTR_PENDING_BIT)) // Usbpoll() collided with data packet { @@ -345,12 +346,12 @@ int main(void) { // loop takes 5 cycles asm volatile( " ldi %0,%1 \n\t" - "loop%=: sbic %2,%3 \n\t" + "loop%=: sbis %2,%3 \n\t" " ldi %0,%1 \n\t" " subi %0,1 \n\t" " brne loop%= \n\t" : "=&d" (ctr) - : "M" ((uint8_t)(10.0f*(F_CPU/1.0e6f)/5.0f+0.5)), "I" (_SFR_IO_ADDR(USBIN)), "M" (USB_CFG_DPLUS_BIT) + : "M" ((uint8_t)(8.8f*(F_CPU/1.0e6f)/5.0f+0.5)), "I" (_SFR_IO_ADDR(USBIN)), "M" (USB_CFG_DMINUS_BIT) ); USB_INTR_PENDING = 1<<USB_INTR_PENDING_BIT; } |