diff options
| -rw-r--r-- | .gdbinit | 23 | ||||
| -rw-r--r-- | .gitignore | 5 | ||||
| -rw-r--r-- | .gitmodules | 3 | ||||
| -rw-r--r-- | SConstruct | 12 | ||||
| m--------- | laks | 0 | ||||
| -rw-r--r-- | main.cpp | 129 |
6 files changed, 172 insertions, 0 deletions
diff --git a/.gdbinit b/.gdbinit new file mode 100644 index 0000000..2844d70 --- /dev/null +++ b/.gdbinit @@ -0,0 +1,23 @@ +define flash +file demo.elf +load +end + +define restart +run +end + +define attach_swd +mon swdp_scan +attach 1 +end + +define attach_jtag +mon jtag_scan +attach 1 +end + +file demo.elf +target extended-remote /dev/cu.usbmodem7FC181B1 + +set mem inaccessible-by-default off diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b137a4a --- /dev/null +++ b/.gitignore @@ -0,0 +1,5 @@ +*.o +*.a +*.elf +*.swp +.sconsign.dblite diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..cd4f3c2 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,3 @@ +[submodule "laks"] + path = laks + url = git://git.jvnv.net/laks.git diff --git a/SConstruct b/SConstruct new file mode 100644 index 0000000..574f656 --- /dev/null +++ b/SConstruct @@ -0,0 +1,12 @@ +import os
+
+env = Environment(
+ ENV = os.environ,
+)
+
+SConscript('laks/build_rules')
+
+#env.SelectMCU('stm32f103cb')
+env.SelectMCU('stm32f407zg')
+
+env.Firmware('demo.elf', Glob('*.cpp'))
diff --git a/laks b/laks new file mode 160000 +Subproject 89baa2a3f6a301a608507f4bf6cfc741e5e06aa diff --git a/main.cpp b/main.cpp new file mode 100644 index 0000000..58cc167 --- /dev/null +++ b/main.cpp @@ -0,0 +1,129 @@ +#include <rcc/rcc.h> +#include <gpio/pin.h> +#include <os/time.h> +#include <usb/usb.h> +#include <usb/descriptor.h> + +auto dev_desc = device_desc(0x200, 0, 0, 0, 64, 0x1234, 0x5678, 0, 0, 0, 0, 1); +auto conf_desc = configuration_desc(2, 1, 0, 0xc0, 0, + // CDC ACM control + interface_desc(0, 0, 1, 0x02, 0x02, 0x01, 0, + endpoint_desc(0x82, 0x03, 16, 255), + cdc_header_desc(0x110), + cdc_call_management_desc(0, 1), + cdc_acm_desc(2), + cdc_union_desc(0, 1) + ), + // CDC ACM data + interface_desc(1, 0, 2, 0x0a, 0x00, 0x00, 0, + endpoint_desc(0x81, 0x02, 64, 0), // IN + endpoint_desc(0x01, 0x02, 64, 0) // OUT + ) +); + +desc_t dev_desc_p = {sizeof(dev_desc), (void*)&dev_desc}; +desc_t conf_desc_p = {sizeof(conf_desc), (void*)&conf_desc}; + +#if defined(STM32F1) +// Maple mini. + +Pin& usb_disc = PB9; +Pin& usb_dm = PA11; +Pin& usb_dp = PA12; + +Pin& led1 = PB1; + +USB_f1 usb(USB, dev_desc_p, conf_desc_p); + +#elif defined(STM32F4) +// Generic F4. + +Pin& usb_vbus = PA9; +Pin& usb_dm = PA11; +Pin& usb_dp = PA12; + +Pin& led1 = PA4; + +USB_otg usb(OTG_FS, dev_desc_p, conf_desc_p); + +#endif + +class USB_CDC_ACM : public USB_class_driver { + private: + uint32_t buf[16]; + + public: + + protected: + virtual SetupStatus handle_setup(uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength) { + if(bmRequestType == 0x21 && bRequest == 0x20) { + return SetupStatus::Ok; + } + + if(bmRequestType == 0x21 && bRequest == 0x22) { + usb.write(0, nullptr, 0); + return SetupStatus::Ok; + } + + return SetupStatus::Unhandled; + } + + virtual void handle_out(uint8_t ep, uint32_t len) { + if(ep == 0) { + usb.write(0, nullptr, 0); + } else if(ep == 1) { + uint32_t r_len = usb.read(ep, buf, len); + if(r_len) { + led1.toggle(); + usb.write(1, buf, r_len); + } + } + } +}; + +USB_CDC_ACM usb_cdc_acm; + +int main() { + #if defined(STM32F1) + // Initialize system timer. + STK.LOAD = 72000000 / 8 / 1000; // 1000 Hz. + STK.CTRL = 0x03; + + RCC.enable(RCC.AFIO); + RCC.enable(RCC.GPIOA); + RCC.enable(RCC.GPIOB); + + led1.set_mode(Pin::Output); + + usb_dm.set_mode(Pin::AF); + usb_dp.set_mode(Pin::AF); + usb_disc.set_mode(Pin::Output); + usb_disc.off(); + + RCC.enable(RCC.USB); + #elif defined(STM32F4) + // Initialize system timer. + STK.LOAD = 168000000 / 8 / 1000; // 1000 Hz. + STK.CTRL = 0x03; + + RCC.enable(RCC.GPIOA); + + led1.set_mode(Pin::Output); + + usb_vbus.set_mode(Pin::Input); + usb_dm.set_mode(Pin::AF); + usb_dm.set_af(10); + usb_dp.set_mode(Pin::AF); + usb_dp.set_af(10); + + RCC.enable(RCC.OTGFS); + #endif + + usb.init(); + usb.register_control_handler(&usb_cdc_acm); + usb.register_out_handler(&usb_cdc_acm, 1); + + while(1) { + usb.process(); + } +} |