gniibe at fsij.org
Mon Dec 30 04:22:02 CET 2019
Chopstx 1.18 is released.
Tagger: NIIBE Yutaka <gniibe at fsij.org>
Date: Mon Dec 30 10:51:15 2019 +0900
It has fixes for chopstx_poll with condition variables and GNU/Linux emulation.
This release is from STABLE-BRANCH-1 branch.
In the master branch (for 2.0), I pushed changes for RISC-V port (from
riscv branch). The riscv branch is dead now. I'm currently using
picolibc for RISC-V port.
In "example-lcd" directory of master, we have an example using USB, LCD
(through SPI) and serial for the target board. The LCD screen
resolution is 160x80. It requires 25600-byte of memory to store screen
data from host, while GD32VF103 only has 32KiB. The USB module on
GD32VF103 is different one. It supports modes of Hub and On-the-Go,
too. It appears as same(similar) as STM32F105/107 (not STM32F103).
The target board is Sipeed Longan nano. It is available at Seeed
Studio. Distributors include Digikey, Mouser, and Akiduki.
While I implemented a USB driver for GD32VF103 (and possibly for
STM32F105/107), I wondered availability of free hardware design of USB
module. This month, I found a blog article:
Happy Hacking (and/in) Happy Holidays,
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