1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
/* Name: bootloaderconfig.h
* Micronucleus configuration file.
* This file (together with some settings in Makefile.inc) configures the boot loader
* according to the hardware.
*
* Controller type: ATtiny 45 - 16.5 MHz
* Configuration: Default configuration
* USB D- : PB3
* USB D+ : PB4
* Entry : Always
* LED : None
* OSCCAL : Stays at 16 MHz
* Note: Uses 16.5 MHz V-USB implementation with PLL
* Last Change: Mar 16,2014
*
* License: GNU GPL v2 (see License.txt
*/
#ifndef __bootloaderconfig_h_included__
#define __bootloaderconfig_h_included__
/* ------------------------------------------------------------------------- */
/* Hardware configuration. */
/* Change this according to your CPU and USB configuration */
/* ------------------------------------------------------------------------- */
#define USB_CFG_IOPORTNAME B
/* This is the port where the USB bus is connected. When you configure it to
* "B", the registers PORTB, PINB and DDRB will be used.
*/
#define USB_CFG_DMINUS_BIT 3
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
* This may be any bit in the port.
*/
#define USB_CFG_DPLUS_BIT 4
/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
* This may be any bit in the port, but must be configured as a pin change interrupt.
*/
#define USB_CFG_CLOCK_KHZ (F_CPU/1000)
/* Clock rate of the AVR in kHz. Legal values are 12000, 12800, 15000, 16000,
* 16500, 18000 and 20000. The 12.8 MHz and 16.5 MHz versions of the code
* require no crystal, they tolerate +/- 1% deviation from the nominal
* frequency. All other rates require a precision of 2000 ppm and thus a
* crystal!
* Since F_CPU should be defined to your actual clock rate anyway, you should
* not need to modify this setting.
*/
/* ------------- Set up interrupt configuration (CPU specific) -------------- */
/* The register names change quite a bit in the ATtiny family. Pay attention */
/* to the manual. Note that the interrupt flag system is still used even though */
/* interrupts are disabled. So this has to be configured correctly. */
// setup interrupt for Pin Change for D+
#define USB_INTR_CFG PCMSK
#define USB_INTR_CFG_SET (1 << USB_CFG_DPLUS_BIT)
#define USB_INTR_CFG_CLR 0
#define USB_INTR_ENABLE GIMSK
#define USB_INTR_ENABLE_BIT PCIE
#define USB_INTR_PENDING GIFR
#define USB_INTR_PENDING_BIT PCIF
#define USB_INTR_VECTOR PCINT0_vect
/* ------------------------------------------------------------------------- */
/* Configuration relevant to the CPU the bootloader is running on */
/* ------------------------------------------------------------------------- */
// how many milliseconds should host wait till it sends another erase or write?
// needs to be above 4.5 (and a whole integer) as avr freezes for 4.5ms
#define MICRONUCLEUS_WRITE_SLEEP 5
/* ---------------------- feature / code size options ---------------------- */
/* Configure the behavior of the bootloader here */
/* ------------------------------------------------------------------------- */
/*
* Define Bootloader entry condition
*
* If the entry condition is not met, the bootloader will not be activated and the user program
* is executed directly after a reset. If no user program has been loaded, the bootloader
* is always active.
*
* ENTRY_ALWAYS Always activate the bootloader after reset. Requires the least
* amount of code.
*
* ENTRY_WATCHDOG Activate the bootloader after a watchdog reset. This can be used
* to enter the bootloader from the user program.
* Adds 22 bytes.
*
* ENTRY_EXT_RESET Activate the bootloader after an external reset was issued by
* pulling the reset pin low. It may be necessary to add an external
* pull-up resistor to the reset pin if this entry method appears to
* behave unreliably.
* Adds 22 bytes.
*
* ENTRY_JUMPER Activate the bootloader when a specific pin is pulled low by an
* external jumper.
* Adds 34 bytes.
*
* JUMPER_PIN Pin the jumper is connected to. (e.g. PB0)
* JUMPER_PORT Port out register for the jumper (e.g. PORTB)
* JUMPER_DDR Port data direction register for the jumper (e.g. DDRB)
* JUMPER_INP Port inout register for the jumper (e.g. PINB)
*
*/
#define ENTRYMODE ENTRY_ALWAYS
#define JUMPER_PIN PB0
#define JUMPER_PORT PORTB
#define JUMPER_DDR DDRB
#define JUMPER_INP PINB
/*
Internal implementation, don't change this unless you want to add an entrymode.
*/
#define ENTRY_ALWAYS 1
#define ENTRY_WATCHDOG 2
#define ENTRY_EXT_RESET 3
#define ENTRY_JUMPER 4
#if ENTRYMODE==ENTRY_ALWAYS
#define bootLoaderInit()
#define bootLoaderExit()
#define bootLoaderStartCondition() 1
#elif ENTRYMODE==ENTRY_WATCHDOG
#define bootLoaderInit()
#define bootLoaderExit()
#define bootLoaderStartCondition() (MCUSR&_BV(WDRF))
#elif ENTRYMODE==ENTRY_EXT_RESET
#define bootLoaderInit()
#define bootLoaderExit()
#define bootLoaderStartCondition() (MCUSR&_BV(EXTRF))
#elif ENTRYMODE==ENTRY_JUMPER
// Enable pull up on jumper pin and delay to stabilize input
#define bootLoaderInit() {JUMPER_DDR&=~_BV(JUMPER_PIN);JUMPER_PORT|=_BV(JUMPER_PIN);_delay_ms(1);}
#define bootLoaderExit() {JUMPER_PORT&=~_BV(JUMPER_PIN);}
#define bootLoaderStartCondition() (!(JUMPER_INP&_BV(JUMPER_PIN)))
#else
#error "No entry mode defined"
#endif
/*
* Define bootloader timeout value.
*
* The bootloader will only time out if a user program was loaded.
*
* AUTO_EXIT_NO_USB_MS The bootloader will exit after this delay if no USB is connected.
* Set to 0 to disable
* Adds ~6 bytes.
* (This will wait for an USB SE0 reset from the host)
*
* AUTO_EXIT_MS The bootloader will exit after this delay if no USB communication
* from the host tool was received.
* Set to 0 to disable
*
* All values are approx. in milliseconds
*/
#define AUTO_EXIT_NO_USB_MS 0
#define AUTO_EXIT_MS 6000
/*
* Defines the setting of the RC-oscillator calibration after quitting the bootloader. (OSCCAL)
*
* OSCCAL_RESTORE_DEFAULT Set this to '1' to revert to OSCCAL factore calibration after bootlaoder exit.
* This is 8 MHz +/-2% on most devices or 16 MHz on the ATtiny 85 with activated PLL.
* Adds ~14 bytes.
*
* OSCCAL_SAVE_CALIB Set this to '1' to save the OSCCAL calibration during program upload.
* This value will be reloaded after reset and will also be used for the user
* program unless "OSCCAL_RESTORE_DEFAULT" is active. This allows calibrate the internal
* RC oscillator to the F_CPU target frequency +/-1% from the USB timing. Please note
* that only true if the ambient temperature does not change.
* Adds ~38 bytes.
*
* OSCCAL_HAVE_XTAL Set this to '1' if you have an external crystal oscillator. In this case no attempt
* will be made to calibrate the oscillator. You should deactivate both options above
* if you use this to avoid redundant code.
*
* If both options are selected, OSCCAL_RESTORE_DEFAULT takes precedence.
*
* If no option is selected, OSCCAL will be left untouched and stays at either factory calibration or F_CPU depending
* on whether the bootloader was activated. This will take the least memory. You can use this if your program
* comes with its own OSCCAL calibration or an external clock source is used.
*/
#define OSCCAL_RESTORE_DEFAULT 0
#define OSCCAL_SAVE_CALIB 1
#define OSCCAL_HAVE_XTAL 0
/*
* Defines handling of an indicator LED while the bootloader is active.
*
* LED_MODE Define behavior of attached LED or suppress LED code.
*
* NONE Do not generate LED code (gains 18 bytes).
* ACTIVE_HIGH LED is on when output pin is high. This will toggle bettwen 1 and 0.
* ACTIVE_LOW LED is on when output pin is low. This will toggle between Z and 0.
*
* LED_DDR,LED_PORT,LED_PIN Where is your LED connected?
*
*/
#define LED_MODE NONE
#define LED_DDR DDRB
#define LED_PORT PORTB
#define LED_PIN PB1
/*
* This is the implementation of the LED code. Change the configuration above unless you want to
* change the led behavior
*
* LED_INIT Called once after bootloader entry
* LED_EXIT Called once during bootloader exit
* LED_MACRO Called in the main loop with the idle counter as parameter.
* Use to define pattern.
*/
#define NONE 0
#define ACTIVE_HIGH 1
#define ACTIVE_LOW 2
#if LED_MODE==ACTIVE_HIGH
#define LED_INIT(x) LED_DDR = _BV(LED_PIN);
#define LED_EXIT(x) {LED_DDR &=~_BV(LED_PIN);LED_PORT &=~_BV(LED_PIN);}
#define LED_MACRO(x) if ( x & 0x4c ) {LED_PORT&=~_BV(LED_PIN);} else {LED_PORT|=_BV(LED_PIN);}
#elif LED_MODE==ACTIVE_LOW
#define LED_INIT(x) LED_PORT &=~_BV(LED_PIN);
#define LED_EXIT(x) LED_DDR &=~_BV(LED_PIN);
#define LED_MACRO(x) if ( x & 0x4c ) {LED_DDR&=~_BV(LED_PIN);} else {LED_DDR|=_BV(LED_PIN);}
#elif LED_MODE==NONE
#define LED_INIT(x)
#define LED_EXIT(x)
#define LED_MACRO(x)
#endif
/* --------------------------------------------------------------------------- */
/* Micronucleus internal configuration. Do not change anything below this line */
/* --------------------------------------------------------------------------- */
// Microcontroller vectortable entries in the flash
#define RESET_VECTOR_OFFSET 0
// number of bytes before the boot loader vectors to store the tiny application vector table
#define TINYVECTOR_RESET_OFFSET 4
#define TINYVECTOR_OSCCAL_OFFSET 6
/* ------------------------------------------------------------------------ */
// postscript are the few bytes at the end of programmable memory which store tinyVectors
#define POSTSCRIPT_SIZE 6
#define PROGMEM_SIZE (BOOTLOADER_ADDRESS - POSTSCRIPT_SIZE) /* max size of user program */
#endif /* __bootloader_h_included__ */
|
