DAPLink

DAPLink (CMSIS-DAP) porting to Artery AT32F425, WCH CH32V203 and WCH CH32V305.

DAPLink-AT32F425

DAPLink (CMSIS-DAP) based on Artery AT32F425 (support crystal-less USB), supports SWD, JTAG and CDC.

On C/C++ page of Keil Option Window:

• Define DAP_FW_V1: generate CMSIS-DAP V1 firmware, using HID transport protocol.
• Do not define DAP_FW_V1: generate CMSIS-DAP V2 firmware, using WINUSB transfer protocol.

Pin map

| FUNC | Pin | | :---- | :---- | | SWD_CLK | PA.1 | | SWD_DIO | PA.0 | | SWD_RST | PA.4 | | CDC_TXD | PA.2 | | CDC_RXD | PA.3 | | JTAG_TDI | PA.7 | | JTAG_TDO | PA.6 |

Sch & PCB: https://oshwhub.com/xivn1987/daplink

DAPLink-CH32V203

DAPLink (CMSIS-DAP) based on WCH CH32V203 (support crystal-less USB), supports SWD, JTAG and CDC.

On Properties for DAPLink -> C/C++ Build -> Settings -> C Compiler -> Preprocessor page:

• Define DAP_FW_V1: generate CMSIS-DAP V1 firmware, using HID transport protocol.
• Do not define DAP_FW_V1: generate CMSIS-DAP V2 firmware, using WINUSB transfer protocol.

Pin map

| FUNC | Pin | | :---- | :---- | | SWD_CLK | PA.1 | | SWD_DIO | PA.0 | | SWD_RST | PA.4 | | CDC_TXD | PA.2 | | CDC_RXD | PA.3 | | JTAG_TDI | PA.7 | | JTAG_TDO | PA.6 |

Sch & PCB: https://oshwhub.com/xivn1987/daplink

DAPLink-CH32V305

DAPLink (CMSIS-DAP) based on WCH CH32V305 (High Speed USB with on-chip PHY), supports SWD, JTAG and CDC.

On Properties for DAPLink -> C/C++ Build -> Settings -> C Compiler -> Preprocessor page:

• Define DAP_FW_V1: generate CMSIS-DAP V1 firmware, using HID transport protocol.
• Do not define DAP_FW_V1: generate CMSIS-DAP V2 firmware, using WINUSB transfer protocol.

Pin map

| FUNC | Pin | | :---- | :---- | | SWD_CLK | PB.13 | | SWD_DIO | PB.12 | | SWD_RST | PC.8 | | CDC_TXD | PB.10 | | CDC_RXD | PB.11 | | JTAG_TDI | PB.15 | | JTAG_TDO | PB.14 |

Sch & PCB: https://oshwhub.com/xivn1987/DAPLink-HS

Speed Test

test command

pyocd erase -t stm32f411ce -f 5mhz --chip
pyocd flash -t stm32f411ce -f 5mhz random_512k.bin

test result | probe | pyocd print | | ---- | ---- | | AT32F425 HID | Erased 524288 bytes (8 sectors), programmed 524288 bytes (512 pages), skipped 0 bytes (0 pages) at 17.24 kB/s | | AT32F425 WINUSB | Erased 524288 bytes (8 sectors), programmed 524288 bytes (512 pages), skipped 0 bytes (0 pages) at 38.34 kB/s | | CH32V203 HID | Erased 524288 bytes (8 sectors), programmed 524288 bytes (512 pages), skipped 0 bytes (0 pages) at 17.26 kB/s | | CH32V203 WINUSB | Erased 524288 bytes (8 sectors), programmed 524288 bytes (512 pages), skipped 0 bytes (0 pages) at 38.16 kB/s | | CH32V305 HID | Erased 524288 bytes (8 sectors), programmed 524288 bytes (512 pages), skipped 0 bytes (0 pages) at 35.44 kB/s | | CH32V305 WINUSB | Erased 524288 bytes (8 sectors), programmed 524288 bytes (512 pages), skipped 0 bytes (0 pages) at 39.40 kB/s |