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| Teensy 4.0 - 600MHz ARM Cortex M7 dev-board http://anycpu.org/forum/viewtopic.php?f=3&t=621 |
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| Author: | monsonite [ Fri Aug 16, 2019 4:59 pm ] |
| Post subject: | Teensy 4.0 - 600MHz ARM Cortex M7 dev-board |
Hi All, It's never been easier to get hold of a fast microcontroller in a breadboard friendly package. The Teensy 4.0 was announced about a week ago and comes in a 24 pin DIP module. It's based on the NXP 600MHz Cortex M7 and sells for $19.95. With 2MB of flash and 1MB of RAM it's a useful board for proving ideas, or possibly emulating your favorite retrocomputer. Bit-banging VGA should be a breeze for a processor of this spec. More details here: https://www.pjrc.com/store/teensy40.html Brief Spec. ARM Cortex-M7 at 600 MHz 1024K RAM (512K is tightly coupled) 2048K Flash (64K reserved for recovery & EEPROM emulation) 2 USB ports, both 480 MBit/sec 3 CAN Bus (1 with CAN FD) 2 I2S Digital Audio 1 S/PDIF Digital Audio 1 SDIO (4 bit) native SD 3 SPI, all with 16 word FIFO 3 I2C, all with 4 byte FIFO 7 Serial, all with 4 byte FIFO 32 general purpose DMA channels 31 PWM pins 40 digital pins, all interrupt capable 14 analog pins, 2 ADCs on chip Cryptographic Acceleration Random Number Generator RTC for date/time Programmable FlexIO Pixel Processing Pipeline Peripheral cross triggering Power On/Off management |
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| Author: | BigEd [ Fri Aug 16, 2019 6:05 pm ] |
| Post subject: | Re: Teensy 4.0 - 600MHz ARM Cortex M7 dev-board |
Oh, that's quite the step up in performance! And with the tightly coupled RAM, even more so. Should be easily fast enough to emulate a RAM/ROM expansion of one sort or another, or any other interesting 8-bit peripheral. Or, as you suggest, a whole system. But - as expected these days - not 5V tolerant. |
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| Author: | monsonite [ Wed Sep 09, 2020 3:22 pm ] |
| Post subject: | Re: Teensy 4.0 - 600MHz ARM Cortex M7 dev-board |
Hi Ed, Teensy 4.0 and 4.1 are now available in the UK from CoolComponents, Pimoroni, PiHut and HobbyTronics. Check the PJRC site for a full list of their Worldwide Distributors. Priced at between £18 and £29 they offer a small breadboard friendly form factor and at 600MHz at least 150% of the performance of the STM32H7xx devices. With use of a suitable heatsink on the SoC they can be pushed to just over 1 GHz. Needless to say I have ordered a small handful to continue with my cpu simulation explorations. I opted for CoolComponents https://coolcomponents.co.uk/products/t ... ment-board but PiMoroni is almost the same cost - and they also offer the PSRAM chipped needed to expand the RAM on the Teensy 4.1 to either 8Mbyte or 16Mbyte https://shop.pimoroni.com/products/8mb- ... teensy-4-1 As mentioned earlier on this forum the spec and features on these boards is awesome, and if you wish you can get as close to the metal as you wish. PS - it's not a Raspberry Pi - so please don't offer any comparisons - they are chalk and cheese. regards Ken |
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