???????????? 3 ???????????ISP (In system programming) ???????о??????????????
???????????? 3 ????
ISP (In system programming) ???????о??????????????
?????????? ISP ( In System Programing ) ????????? Nu-Link2-Pro ????????????????????????????в???????????????????? UART ?????????????????????? NuMaker ?????????????? Nu-Link2-Me ?????????????????????? ISP ??????????????????????? Nu-Link2-Pro ??Nu-Link2-Me ?????????????????п???????????????????????? Host ??????????????????????????? ISP ???????????????е?????????????????????????趨??????????????????÷???? Nu-Link2-Pro ??????????? ISP ???????????
ISP ???????裬????????? ISP Bootloader???? Bootloader ????????о???????????????????????????? ISP ??????????????п?????????????????????????? SPI ???????????????? Nu-Link2-Pro ??? SPI ??????????????? ISP ????????
1. ??? ISP Bootloader
(1) ISP Bootloader ????
BSP ?д????????? ISP Bootloader ???????????????????????????????SPI ?????????????·??? SampleCode/ISP/ISP_SPI??
(2) ???? Bin ?n
?????? IDE ( ??arm KEIL/ IAR/ NuEclipse ) ?????? Bootloader ?????????????? Bin ?n???? SPI ????????????????? ISP_SPI.bin??
2. Bootloader ???
(1) ??????
???? SWD ????Nu-Link2-Pro ??????????о? ( ?? )??Nu-Link2-Pro ?????????????? USB ?????
????Nu-Link2-Pro ???SWD ???????о?
(2) ????趨
???? ICP ???? Nu-Link2-Pro ????????趨 ( ??? )??
1. ???? Bootloader ?? LDROM
2. ????λ??? LDROM ????
3. ???λ????? LDROM????????
?????Bootloader ????趨
(3) ??????
???????????? Bootloader ????? LDROM??
3. ??????????
????? SPI ??????? Nu-Link2-Pro ??????????о?????????????? 6 ????SS/ CLK/ MOSI/ MISO/ VDD33/ VSS ( GND )??Nu-Link2-Pro ????????????????? ( ??? )???????????÷????ο? Nu-Link2-Pro ?????? 3.3 Bridge Interface Pin Definition and Function Connection??
?????ISP_SPI ????????
??????????λ????????? ISP Bootloader ?? main ????????в??????????е?M487 ??????? ISP_SPI ??main????????? ( ??? ) ????λ????? SS ?C PH9/ CLK ?C PH8/ MOSI ?C PE0/ MISO ?C PE1??
????ISP_SPI main ???????
????????? Nu-Link2-Pro ??????????????
4. ISP ?趨
(1) ?????????
??????? 3 ??????????????? I2C/ SPI/ CAN/ RS485/ UART??
(2) ??????
??? Connect ?????????ò????????о?????????????????????????о???
(3) ???????? Bin ?n
????????????? Bin ?n???? APROM ?С?
(4) Config Bits ?趨
??? Config Bits ???趨????????
(5) ????趨
?????λ??? APROM??????? Reset and Run ??䶮
(6) ??????
???? Start ????ISP ????????????????????????????????????????????о?
??塢ISP ?趨????
??????????????????????????? IDE??NuMaker ?????塢??????????????? BSP??PinConfigure/ PinView????????????? ICP ??????????????????????????????????????????????????? ISP ????????? Nu-Link2-Pro?????????о??????????????????????ν??г???????????????????????????????????Ч????????????????????????????????????????δ????????????????????????????????????????????????????????????????顣
????zzy ?????????2023-05-27
