FNIRSI 1013D teardown and mini review – A portable oscilloscope based on Allwinner CPU & Anlogic FGPA


The FNIRSI 1013D is a dual-channel flat-panel oscilloscope with a rich set of features. It is cost-effective and useful to people in the maintenance and R&D industries. Although it has been on the market for a few years, I purchased one, and I decided to introduce it and disassemble it to check out the hardware design. FNIRSI describes its oscilloscope as “small and portable”, so I assume it should include a lithium battery, a TFT LCD screen, a processor to handle the display, and another chip to process the digital signals. Let’s take it apart first to find out. FNIRSI 1013D oscilloscope unboxing FNIRSI 1013D package content: 1x FNIRSI 1013D oscilloscope 2x 100MHz matching probes (1X and 10X) 1x USB cable 1x Charging adapter 1x Instruction manual The FNIRSI 1013D adopts a 7-inch 800 x 480 resolution color TFT LCD with a capacitive touch screen. There are two input channels […]

More Allwinner F1C200s ARM9 boards: MangoPi R3 and CherryPi-F1C200S

CherryPi-F1C200s board

I wrote about the Widora TINY200 board based on Allwinner F1C200s ARM9 processor with 64MB built-in RAM, up to 512MB NAND flash, LCD and camera interfaces in April 2020. I was just informed more similar Allwinner F1C200s boards had recently shown up with Widora MangoPi R3 that’s basically the same as TINY200, and CherryPi-F1C200S with similar dimensions and features, but a different ports arrangement. Let’s have a look at both. MangoPi R3 MangoPi R3 specifications are the same as the ones for Tiny200 board, but they selected the 128MB NAND flash storage option, and changed the USB-TTL chip: SoC – Allwinner F1C200s ARM926EJS processor @ 420 MHz (overclockable to 700 MHz) with 64MB DDR RAM Storage – 128MB NAND flash and MicroSD card slot Display I/F – 40-pin RGB565 display interface and 6-wire touch interface Camera I/F – 24-pin DVP camera interface compatible with OV2640, GC0328, etc. Audio – Onboard […]

Allwinner F1C100s handheld computer should cost $15 to manufacture

minimum viable computer

Brian Benchoff’s “minimum viable computer’” is a Linux handheld computer powered by an Allwinner F1C100s ARM9 processor that could fit into your pocket and should cost about $15 (BoM cost) to manufacture in quantity. The open-source hardware Linux “computer” comes with 32MB or 64MB RAM, a 2.3-inch color display, a 48-key keyboard, a USB port, and is powered by two AAA batteries. Don’t expect a desktop environment, but it can run a terminal to execute scripts, or even run Doom. Minimum viable computer specifications: SoC – Allwinner F1C100s ARM926EJ-S CPU @ 533 MHz with 32 MB DDR built-in (Upgradable to 64 MB with the pin-compatible F1C200s) Storage – 64GB MicroSD card Display – 2.3” IPS TFT display with 320 x 240 resolution (ILI9342 SPI controller) USB – USB 2.0 Type-A port Keyboard – 48-key keyboard with a silicone membrane (just like most TV remote controls) Misc – Power button, 6-pin […]

ARM9 in 2020 – Meet Microchip SAM9X60 SoC & Evaluation Kit

SAM9X60-EK Evaluation Kit

In my first job, I wrote code for a MIPS processor for VoIP phones, then I switched to NEC/Renesas MCUs for CD and DVD players, before going back to Linux and my first experience with an Arm processor: Cirrus Logic EP9307 with a single ARM9  (ARM920T) core clocked at 200 MHz. That was in 2005, and according to Wikipedia various ARM9 cores were released between 1998 to 2006, and now such cores are not recommended for new IC designs with most companies now building their chips around Arm Cortex-A/M/R cores. At the end of last year, we wrote about Banana Pi BPI-F2S SBC based on Sunplus SP7021 “Plus1” quad-core Cortex-A7 processor with ARM9 and 8051 co-processor. Odd enough but at least the ARM9 core is not the main processor, however, while looking at the upcoming Linux 5.6 Linux kernel log I read an entry about a new SAM9X60 ARM926-based SoC […]

AlphaScale ASM9260 ARM9 Processor Details and Development Board

Yesterday, as I wrote a Linux 4.0 Changelog, I noticed a new ARM processor called AlphaScale ASM9260, and I thought it might be interesting to find out more. A Google search would only return results from the Linux kernel mailing list and mirrors, so I checked out the code a bit to find out its an ARM9 processor made by AlphaScale Integrated Circuits Systems, Inc, based in Wuxi, China. The company website alphascale.com does not work, but I found out the processor is sold on Taobao for 38 RMB (~$6), and there’s also a development board (ASM9260DVK) for 498 RMB or about $80, and that’s basically the only two links were I could find any details. AlphaScale ASM9260T is arm ARM926EJS processor clocked at 240 MHz, 16GN I-cache and D-cache, 8KB SRAM, with the following peripherals: 32-bit SDRAM/NOR interface MLC NAND 24-bit ECC 2x USB 2.0 OTG, 2x USB 2.0 […]

ACE CoSy Compiler Framework Outperforms LLVM by up to 25% for ARM9 processors

ACE (Associated Compiler Experts) announced that their 2012 CoSy compiler development system delivers better performance than the latest LLVM 3.0 compiler on ARM9 processors. Using an ARM9 processor as reference, CoSy compiler framework (2012) shows more than 15% performance improvement using Livermore benchmark loops and 25% in MiBench against LLVM 3.0. The CoSy compiler framework is also more than 7% ahead of LLVM on the EEMBC CoreMark benchmark. The company explains this feat by the use of “CoSy’s unique flexible phase ordering of cutting-edge code optimizations and the addition of new CoSy features” such as compile-time code generator feedback injected into optimization algorithms in order to augment realistic and accurate decision making in architecture-independent optimizations. ACE did not publish the benchmark results publicly, and I could not find any reference to “cosy” or “ace” in EEMBC Coremark database, so I could not check those results myself. CoSy Compiler Framework is […]

Ronetix announces Five New Atmel SAM9 CPU Modules

Ronetix announced 5 CPU modules based on Atmel AT91SAM9 series: SAM9G35-CM – populated with AT91SAM9G35 SAM9G25-CM – populated with AT91SAM9G25 SAM9G15-CM – populated with AT91SAM9G15 SAM9X35-CM – populated with AT91SAM9X35 SAM9X25-CM – populated with AT91SAM9X25 Those 5 mew modules correspond to the 5 New Atmel processors and Devkit announced in August 2011. All modules offer 400MHz performance, 128MB to 256MB DDR2 SDRAM, 256MB NAND flash and 4MB to 8MB SPI flash. Here’s a comparison table of the different features available on the 5 modules / processors. Features SAM9G15 SAM9G35 SAM9X35 SAM9G25 SAM9X25 EMAC – RMII RMII MII MII + RMII ADC channels 12 12 12 7 7 CAN – – y – y 5-wires touchscreen y y y – – LCD y y y – – ISI – – – y – additional USART3 – – – y y The modules support the operating supported by SAM9 processors namely Android, […]