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Diffstat (limited to 'README.org')
| -rw-r--r-- | README.org | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -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. |