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avrdude
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Merge pull request #1093 from stefanrueger/gemmaBoot 

Create two bootloader programmers for gemmaBoot boards
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Stefan Rueger 2022-09-24 13:21:44 +01:00 committed by GitHub
parent fe991b8214 a5f3885b50
commit 3b8ac76246
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 39 additions and 1 deletions
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32
src/avrdude.conf.in
View File

@ -1458,6 +1458,38 @@ programmer
usbpid = 0x0c9f;
;
#------------------------------------------------------------
# arduino_gemma
#------------------------------------------------------------
# https://github.com/arduino/ArduinoCore-avr/tree/master/bootloaders/gemma
programmer
id = "arduino_gemma";
desc = "Arduino Gemma bootloader disguised as USBtiny";
type = "usbtiny";
prog_modes = PM_SPM;
connection_type = usb;
usbvid = 0x2341;
usbpid = 0x0c9f;
;
#------------------------------------------------------------
# adafruit_gemma
#------------------------------------------------------------
# https://github.com/adafruit/Adafruit-Trinket-Gemma-Bootloader
programmer
id = "adafruit_gemma";
desc = "Adafruit Trinket Gemma bootloader disguised as USBtiny";
type = "usbtiny";
prog_modes = PM_SPM;
connection_type = usb;
usbvid = 0x1781;
usbpid = 0x0c9f;
;
#------------------------------------------------------------
# arduinoisp
#------------------------------------------------------------

8
src/usbtiny.c
View File

@ -618,7 +618,13 @@ static int usbtiny_chip_erase(const PROGRAMMER *pgm, const AVRPART *p) {
if (! usbtiny_avr_op( pgm, p, AVR_OP_CHIP_ERASE, res )) {
return -1;
}
usleep( p->chip_erase_delay );
if(pgm->prog_modes & PM_SPM) { // Talking to bootloader directly
AVRMEM *fl = avr_locate_mem(p, "flash");
// Estimated time it takes to erase all pages in bootloader
usleep(p->chip_erase_delay * (fl? fl->num_pages: 999));
} else
usleep(p->chip_erase_delay);
// prepare for further instruction
pgm->initialize(pgm, p);