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authorBrian Cully <bjc@kublai.com>2022-08-03 19:05:54 -0400
committerBrian Cully <bjc@kublai.com>2022-08-03 19:05:54 -0400
commitd04d8f629ccd1d80b1dae4f3588b397dcebd1bd4 (patch)
tree918b537b77af457c6d808ec7c2e1f6e0189d38dc /README.org
parent5062ac0818f07bfe07714039c46018172a79ee76 (diff)
downloadluchie-d04d8f629ccd1d80b1dae4f3588b397dcebd1bd4.tar.gz
luchie-d04d8f629ccd1d80b1dae4f3588b397dcebd1bd4.zip
Get rid of nightly features by using ‘global_asm’.
Now compiles and runs on stable.
Diffstat (limited to 'README.org')
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1 files changed, 5 insertions, 1 deletions
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@@ -1,4 +1,4 @@
-looks like the start board is a gd32vf103cbt from the tiny print silk-screened on the chip.
+looks like the start board is a gd32vf103cbt from the tiny print silk-screened on the chip. [[https://www.tme.com/us/en-us/details/gd32vf103c-start/development-kits-others/gigadevice/][TME]] says it's a gd32vf103d6t6
which means it has 128k flash and 32k sram and 37(!) gpio pins
@@ -13,3 +13,7 @@ interrupt vector table is 4096 words starting from the start of flash (~mtvt~ re
according to the user manual (pg 51), at least when waking up, the system boots from ~0x0000_0000~ (which is an alias to the start of the main flash, iirc)
usb is 2.0 full-speed (12Mbps)
+
+* USART
+On [[https://github.com/tyustli/rt-thread/tree/master/bsp/gd32vf103v-eval][github]] it says that ~uart0~ tx/rx is gpio 9/10 — but that's for the eval board.
+See the [[https://github.com/riscv-mcu/GD32VF103_Firmware_Library/tree/master/Examples/USART/Printf][risc-v repository]] for a printf example.