alivejae.blogg.se - Microchip pic serial bootloader

#MICROCHIP PIC SERIAL BOOTLOADER VERIFICATION#
#MICROCHIP PIC SERIAL BOOTLOADER CODE#
#MICROCHIP PIC SERIAL BOOTLOADER PC#
#MICROCHIP PIC SERIAL BOOTLOADER DOWNLOAD#

An advanced “write planner” that eliminates unnecessary erase/write transactions.

#MICROCHIP PIC SERIAL BOOTLOADER VERIFICATION#

A 16-bit CRC packet and Flash memory verification for quick verification of successful programming, even at low baud rates.

Baud rate flexibility, from 1,200 bps to 3 Mbps for extremely fast programming.

Automatic baud rate synchronization to the host.

#MICROCHIP PIC SERIAL BOOTLOADER CODE#

Small firmware code size (less than 450 instruction words on most devices).

AN1310 Bootloader Features The key features of the AN1310, “High-Speed Serial Bootloader for PIC16 and PIC18 Devices” include: Once the application firmware is programmed, the bootloader cedes control, allowing normal application execution until the bootloader is called.

#MICROCHIP PIC SERIAL BOOTLOADER PC#

When the bootloader firmware is activated, a host PC can use a serial protocol to read, write and verify updates to the microcontroller's application firmware. The kernel uses a small portion of pro- gram memory not normally used by the firmware’s main application. This is done by a “boot- loader” providing a firmware kernel, residing in the microcontroller. DS01310A-page 1 INTRODUCTION Microchip’s enhanced Flash microcontrollers enable firmware to program itself. Just ensure that the BOOT0 pin is set to 0 again (On Maple/Olimexino you don't need to worry) and press Reset.2010 Microchip Technology Inc. The instructions are detailed more fully here: īeaglebone Black (or other embedded Linux) If so, just try running it again without resetting your board.

Note: The flasher may give you an error message such as Chip replied with a NACK.

If you only have one USB-Serial device plugged in, it's almost certainly /dev/ttyUSB0 On Linux, MySerialPort will probably look a lot like /dev/ttyUSB# where # is a number.You can use the 'Tab' key to autocomplete once you have typed /dev/tty.usbserial On Mac OS, MySerialPort will probably look a lot like /dev/tty.usbserial# where # is a number.For Espruino Boards add -k to the command-line.Run python stm32loader.py -p MySerialPort -evw espruino_for_your_device.bin Make sure you have Python installed (type python -help and see if anything happens)ĭownload the stm32loader.py Python script from

#MICROCHIP PIC SERIAL BOOTLOADER DOWNLOAD#

Just download the tool and follow their instructions. ST provide an application called the ' ST Flash Loader Demonstrator' that allows you to easily flash your device. On STM32DISCOVERY boards you'll have to connect the pins up manually. On Maple/Olimexino, the button is wired up to BOOT0. Just set them up and press the Reset Button. BOOT1 is on pin B2 and needs connecting to GND. On Espruino boards, BOOT0 is labelled on a pin in the middle just below the top edge of the board and it'll need to be connected to 3.3v. To get into the bootloader, you need to reset the device with the BOOT0 pin set to 1, and BOOT1 set to 0:

'HY' board, you don't have to do much at all - they have a USB-TTL converter onboard, and it is connected to USART1.

Maple/Olimexino board, you'll have to use a USB-TTL converter and connect to either the pins marked TX1 and RX1, or D7(TX) and D8(RX) on the Olimexino.

STM32DISCOVERY board, you'll have to use a USB-TTL converter and connect directly to the pins.

Espruino board, you'll have to use a USB-TTL converter and connect directly to the pins.

USART1 is usually on pins PA9 (TX) and PA10 (RX) of the chip itself, and it is 3.3v TTL level. Do not follow these instructions unless you want to overwrite the bootloader. Note: Espruino boards have a USB implementation of the STM32 bootloader protocol built in. All STM32 ARM chips contain a hard-coded bootloader that allows them to be programmed via USART1.