Use stm32f103 timer triggered by the DMA channel, the data SIN code table within a cycle automatically transferred to DAC0, DAC1 function, output two different frequency sine wave, the number of samples within each sine wave cycle is adjustable, change the timer interrupt, you can adjust the output frequency sine wave, of course, a point of DAC output is the fastest 3M, tested and fully available.

DAC_SIN
.......\CMSIS
.......\.....\CM3
.......\.....\...\CoreSupport
.......\.....\...\...........\core_cm3.c
.......\.....\...\...........\core_cm3.h
.......\.....\...\DeviceSupport
.......\.....\...\.............\ST
.......\.....\...\.............\..\STM32F10x
.......\.....\...\.............\..\.........\Release_Notes.html
.......\.....\...\.............\..\.........\startup
.......\.....\...\.............\..\.........\.......\TrueSTUDIO
.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_cl.s
.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_hd.s
.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_hd_vl.s
.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_ld.s
.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_ld_vl.s
.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_md.s
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.......\.....\...\.............\..\.........\.......\..........\startup_stm32f10x_xl.s
.......\.....\...\.............\..\.........\.......\arm
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_cl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd_vl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld_vl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md_vl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_xl.s
.......\.....\...\.............\..\.........\.......\gcc_ride7
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_cl.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_hd.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_hd_vl.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_ld.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_ld_vl.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_md.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_md_vl.s
.......\.....\...\.............\..\.........\.......\.........\startup_stm32f10x_xl.s
.......\.....\...\.............\..\.........\.......\iar
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_cl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_hd_vl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_ld_vl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_md_vl.s
.......\.....\...\.............\..\.........\.......\...\startup_stm32f10x_xl.s
.......\.....\...\.............\..\.........\stm32f10x.h
.......\.....\...\.............\..\.........\system_stm32f10x.c
.......\.....\...\.............\..\.........\system_stm32f10x.h
.......\.....\CMSIS debug support.htm
.......\.....\CMSIS_changes.htm
.......\.....\Documentation
.......\.....\.............\CMSIS_Core.htm
.......\.....\License.doc
.......\HARDWARE
.......\........\ALARM
.......\........\.....\alarm.c
.......\........\.....\alarm.h
.......\........\KEY
.......\........\...\key.c
.......\........\...\key.h
.......\........\LED
.......\........\...\floor.h
.......\........\...\led.c
.......\........\...\led.h
.......\........\...\words.h
.......\........\SAMPLE
.......\........\......\sample.c
.......\........\......\sample.h
.......\........\d

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