to gchapman: Are you on some sort of mailing list that you get announcements for all these new documents that you post? Is there some forum or web page at Microchip where they are announced?
(In any case, thank you for reposting them here, attached to relevant threads!)
Posted by gchapman: Fri. Feb 26, 2021 - 02:08 PM(Reply to #253)
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westfw wrote:
Are you on some sort of mailing list that you get announcements for all these new documents that you post?
No
westfw wrote:
Is there some forum or web page at Microchip where they are announced?
web pages
westfw wrote:
(In any case, thank you for reposting them here, attached to relevant threads!)
You're welcome!
P.S.
A foundry's application engineers, by significant effort and work, create application notes and source code that expands on what's in the data sheets (ideally created by design engineers)
Same application engineers may write trade journal articles though these journals aren't like the ones in the past (circa '10)
Same engineers attend conferences that are now virtual (where's the swag?)
(sucking sound from the drain)
Chin up!
How to search for Microchip PCNs (change control board releases data sheets, errata, assemble & test, wafer fab for new die or new fabs)
Updated the GitHub repository links, the References section, and the use cases sections. Added the AVR® DA Family Overview and Revision History sections. Added MCC versions for each use case, running on AVR128DA48. Other minor corrections.
Updated the GitHub repository links, the References section, and the use cases sections. Added the AVR® DA Family Overview and Revision History sections. Added MCC versions for each use case, running on AVR128DA48. Other minor corrections.
Updated the GitHub repository links, the References section, and the use cases sections. Added the AVR® DA Family Overview, Dithering Feature and Revision History sections. Added MCC versions for each use case, running on AVR128DA48. Other minor corrections.
I really don't understand what are DD and DE families for. All of them seem to be practically identical and no significant improvement since ATmega4809. I wish new AVRs have USB working as Virtual COM Port. This would be really nice to get rig o CP2102/FT230... old XMEGA AU serial have USB and this was really useful.
Posted by gchapman: Mon. Mar 15, 2021 - 07:01 PM(Reply to #257)
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Low pin count (growth from tinyAVR 0, 1, and 2-series)
extronic wrote:
... and no significant improvement since ATmega4809.
mega4809 has a single-ended ADC, no high frequency crystal oscillator, etc.; a mega4809 advantage is packaging (PDIP-40 vs PDIP-28)
extronic wrote:
I wish new AVRs have USB working as Virtual COM Port.
Concur; maybe AVR DC.
USB is a mid-complexity peripheral; some difficulty to be complete, precise, and correct with USB and squeeze the USB controller into the limited die space.
Maybe AVR Dx USB access will be by another means (USB megaAVR : dual-port RAM, USB XMEGA AVR : pseudo dual-port RAM and the four RMW instructions)
extronic wrote:
This would be really nice to get rig o CP2102/FT230
Yet there's innovation in USB UART :
crystal-less
very high baud
24MHz clock to the MCU
extronic wrote:
... old XMEGA AU serial have USB and this was really useful.
I looking forward to -DD because of the package size. 4mm QFN vs 5mm makes *a lot* of difference to me. Then I can drop SAMD11 which is too memory-constrained (although it does have USB, if you can afford the memory use).
Updated the GitHub repository links, the References section, and the use cases sections. Added the AVR® DA Family Overview and Revision History sections. Added MCC versions for each use case, running on AVR128DA48. Other minor corrections.
Updated the GitHub repository links, the References section, and the use cases sections. Added the AVR® DA Family Overview and Revision History sections. Added MCC versions for each use case, running on AVR128DA48. Other minor corrections.
Updated the GitHub repository links, the References section, the use cases sections, and the use cases figures. Added the AVR® DA Family Overview, Advanced Examples and Revision History sections. Added MCC versions for each use case, running on AVR128DA48. Other minor corrections.
There are so many monolithic buck converters, some which only require outboard capacitors. Don't see why one would build one oneself. You can control the voltage with a filtered PWM signal to bias the Feedback pin.
Posted by gchapman: Thu. Apr 1, 2021 - 05:26 PM(Reply to #262)
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glewis wrote:
Don't see why one would build one oneself.
voltage
digital control (in primary or secondary)
digital compensation (flexibility in matching load to source as either or both change impedance)
though current BCD processes and designs have transistors with significant drain-source max voltage; there are significant use cases for 40Vdc and greater (power tools, mowers, engine start-stop, hybrid EV, etc)
glewis wrote:
You can control the voltage with a filtered PWM signal to bias the Feedback pin.
or a DAC though DAC are more prevalent in follow-on AVR.
BCD - Bipolar-CMOS-DMOS (low noise analog front-end, control logic, power switches)
The presented solution creates a cost-effective motor driver by using an 8-bit microcontroller when traditionally, only 16-bit microcontrollers or more were used in creating this device.
The motor control board could drive the motor for some water well pumps; Plug-In Module (PIM) for AVR DA and AVR DB are forthcoming.
Posted by Svuppe: Sat. Aug 14, 2021 - 02:55 PM(Reply to #270)
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Coupon codes are nice, but can anyone actually buy anything from them?
I have been trying to buy the DB48 eval kit for the last hour, but I can't get past the checkout. It says there is something wrong with one or more fields in my address, but all is fine when I look. The address is the same as last time I ordered from Microchip Direct, and back then there was no problem.
Overcurrent Protection Using the Integrated Op Amps on AVR® DB (web doc)
AN3860 Overcurrent Protection Using the Integrated Op Amps on AVR DB (PDF)
"Dare to be naïve." - Buckminster Fuller
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Topto gchapman: Are you on some sort of mailing list that you get announcements for all these new documents that you post? Is there some forum or web page at Microchip where they are announced?
(In any case, thank you for reposting them here, attached to relevant threads!)
- Log in or register to post comments
TopP.S.
A foundry's application engineers, by significant effort and work, create application notes and source code that expands on what's in the data sheets (ideally created by design engineers)
Same application engineers may write trade journal articles though these journals aren't like the ones in the past (circa '10)
Same engineers attend conferences that are now virtual (where's the swag?)
(sucking sound from the drain)
Chin up!
How to search for Microchip PCNs (change control board releases data sheets, errata, assemble & test, wafer fab for new die or new fabs)
TechDoc (PDF are the reference)
Online Docs (web docs, subset of TechDoc)
RSS Feeds | Microchip Technology (RSS's typical use case is feeds to journalists)
What's New? - Developer Help
"Dare to be naïve." - Buckminster Fuller
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TopTB3215 Getting Started with SPI (PDF)
TB3214 Getting Started with TCB (PDF)
edit :
"Dare to be naïve." - Buckminster Fuller
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TopAVR® Instruction Set Manual (PDF)
"Dare to be naïve." - Buckminster Fuller
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TopI really don't understand what are DD and DE families for. All of them seem to be practically identical and no significant improvement since ATmega4809. I wish new AVRs have USB working as Virtual COM Port. This would be really nice to get rig o CP2102/FT230... old XMEGA AU serial have USB and this was really useful.
extronic.pl
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TopLow pin count (growth from tinyAVR 0, 1, and 2-series)
USB is a mid-complexity peripheral; some difficulty to be complete, precise, and correct with USB and squeeze the USB controller into the limited die space.
Maybe AVR Dx USB access will be by another means (USB megaAVR : dual-port RAM, USB XMEGA AVR : pseudo dual-port RAM and the four RMW instructions)
Features | ADC | ATmega4808/4809 Data Sheet
NEW! USB to UART G Series Archives | Prolific USA | IC Design & Manufacturing
XR21x14x Universal Async Receiver Transmitters - MaxLinear | Mouser due to CH340G IC vendor..... | AVR Freaks
USBXpress USB Bridges - USB-to-UART bridge controllers - Silicon Labs and Pololu - CP2102N USB-to-Serial Adapter Carrier
"Dare to be naïve." - Buckminster Fuller
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TopI looking forward to -DD because of the package size. 4mm QFN vs 5mm makes *a lot* of difference to me. Then I can drop SAMD11 which is too memory-constrained (although it does have USB, if you can afford the memory use).
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TopGetting Started with Analog-to-Digital Converter (ADC) (PDF)
Getting Started with Digital-to-Analog Converter (DAC) (PDF)
edit :
TB3218 Getting started with CCL
"Dare to be naïve." - Buckminster Fuller
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Top"Dare to be naïve." - Buckminster Fuller
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TopThere are so many monolithic buck converters, some which only require outboard capacitors. Don't see why one would build one oneself. You can control the voltage with a filtered PWM signal to bias the Feedback pin.
- Log in or register to post comments
Topthough current BCD processes and designs have transistors with significant drain-source max voltage; there are significant use cases for 40Vdc and greater (power tools, mowers, engine start-stop, hybrid EV, etc)
BCD - Bipolar-CMOS-DMOS (low noise analog front-end, control logic, power switches)
Hysteretic control though very low price :
84Vdc :
Electric propulsion system for PPG and Ultralights | AVR Freaks
Secondary control, digital control :
MCP1012 - AC/DC - Auxiliary Controllers
Schematic | AVR128DB48 Curiosity Nano Hardware User Guide (second sheet, A2)
"Dare to be naïve." - Buckminster Fuller
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TopOne of the main reasons to switch the power with a micro is to be in sync with the switching noise.
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TopAVR64EA48 - 8-bit Microcontrollers
AVR64EA32 - 8-bit Microcontrollers
AVR64EA28 - 8-bit Microcontrollers
"Dare to be naïve." - Buckminster Fuller
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TopThe motor control board could drive the motor for some water well pumps; Plug-In Module (PIM) for AVR DA and AVR DB are forthcoming.
edit : web doc
Sensorless BLDC Motor Control for AVR® Microcontrollersedit2 : 16 bit
Microchip's dsPIC33CK Low Voltage Motor Control (LVMC) Development Board - YouTube (6m6s)
edit3 :
AN3998 - Sensorless BLDC Motor Control for AVR® Microcontrollers
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Topplaylist :
AVR® DB | Hands-on Training - YouTube
"Dare to be naïve." - Buckminster Fuller
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TopAN3860 Overcurrent Protection Using the Integrated Op Amps on AVR DB (PDF)
"Dare to be naïve." - Buckminster Fuller
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Topon sale this month
Part Number: EV35L43A - AVR128DB48 Curiosity Nano Evaluation kit | Welcome to Microchip Technology | Microchip Technology Inc.
via Dev Tool Deals | Microchip Technology
"Dare to be naïve." - Buckminster Fuller
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TopAugust Development Tools sale
via e-mail
AVR128DB48 CURIOSITY NANO EVALUATION KIT | Microchip Technology
"Dare to be naïve." - Buckminster Fuller
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TopCoupon codes are nice, but can anyone actually buy anything from them?
I have been trying to buy the DB48 eval kit for the last hour, but I can't get past the checkout. It says there is something wrong with one or more fields in my address, but all is fine when I look. The address is the same as last time I ordered from Microchip Direct, and back then there was no problem.
- Log in or register to post comments
TopWeb sites are updated and have several applications that must communicate else fubar.
Try during business hours or try
Contact Us | World's Largest Inventory of Microchip Products
though there's a Denmark office.
FUBAR - Wiktionary
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