ua1zbe
a1206d6fd4
Features: - VFO mode with direct frequency input - POCSAG decoder (512/1200 baud) with BCH(31,21) correction - Full-screen Spectrum analyzer - FM Radio receiver - RSSI signal indicator overlay - Custom boot splash (UA1ZBE / POCSAG pager / build date) Architecture: - app/mode.c — mode dispatcher (VFO/POCSAG/Spectrum/FM) - app/boot_splash.c — 2-second boot splash - app/pocsag/ — POCSAG decoder + BCH correction - app/display_rssi.c — RSSI indicator - main.c — entry point with custom init - syscalls.c — bare-metal _sbrk stub Build: arm-none-eabi-gcc -Os -flto -Wall -Werror -Wextra Size: 57.9KB Flash / 3.6KB RAM Controls: - 0-9: Direct frequency input (VFO) - SK2: POCSAG mode - SK1: Spectrum analyzer - 0: FM Radio - EXIT: Return to VFO - F/*: Toggle 512/1200 baud (in POCSAG)
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
#include "Driver_SPI.h"
|
|
#include "cmsis_os.h" // ARM::CMSIS:RTOS:Keil RTX
|
|
|
|
|
|
void mySPI_Thread(void const *argument);
|
|
osThreadId tid_mySPI_Thread;
|
|
|
|
|
|
/* SPI Driver */
|
|
extern ARM_DRIVER_SPI Driver_SPI0;
|
|
|
|
|
|
void mySPI_callback(uint32_t event)
|
|
{
|
|
switch (event)
|
|
{
|
|
case ARM_SPI_EVENT_TRANSFER_COMPLETE:
|
|
/* Success: Wakeup Thread */
|
|
osSignalSet(tid_mySPI_Thread, 0x01);
|
|
break;
|
|
case ARM_SPI_EVENT_DATA_LOST:
|
|
/* Occurs in slave mode when data is requested/sent by master
|
|
but send/receive/transfer operation has not been started
|
|
and indicates that data is lost. Occurs also in master mode
|
|
when driver cannot transfer data fast enough. */
|
|
__breakpoint(0); /* Error: Call debugger or replace with custom error handling */
|
|
break;
|
|
case ARM_SPI_EVENT_MODE_FAULT:
|
|
/* Occurs in master mode when Slave Select is deactivated and
|
|
indicates Master Mode Fault. */
|
|
__breakpoint(0); /* Error: Call debugger or replace with custom error handling */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Test data buffers */
|
|
const uint8_t testdata_out[8] = { 0, 1, 2, 3, 4, 5, 6, 7 };
|
|
uint8_t testdata_in [8];
|
|
|
|
void mySPI_Thread(void const* arg)
|
|
{
|
|
ARM_DRIVER_SPI* SPIdrv = &Driver_SPI0;
|
|
osEvent evt;
|
|
|
|
#ifdef DEBUG
|
|
ARM_DRIVER_VERSION version;
|
|
ARM_SPI_CAPABILITIES drv_capabilities;
|
|
|
|
version = SPIdrv->GetVersion();
|
|
if (version.api < 0x200) /* requires at minimum API version 2.00 or higher */
|
|
{ /* error handling */
|
|
return;
|
|
}
|
|
|
|
drv_capabilities = SPIdrv->GetCapabilities();
|
|
if (drv_capabilities.event_mode_fault == 0)
|
|
{ /* error handling */
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Initialize the SPI driver */
|
|
SPIdrv->Initialize(mySPI_callback);
|
|
/* Power up the SPI peripheral */
|
|
SPIdrv->PowerControl(ARM_POWER_FULL);
|
|
/* Configure the SPI to Master, 8-bit mode @10000 kBits/sec */
|
|
SPIdrv->Control(ARM_SPI_MODE_MASTER | ARM_SPI_CPOL1_CPHA1 | ARM_SPI_MSB_LSB | ARM_SPI_SS_MASTER_SW | ARM_SPI_DATA_BITS(8), 10000000);
|
|
|
|
/* SS line = INACTIVE = HIGH */
|
|
SPIdrv->Control(ARM_SPI_CONTROL_SS, ARM_SPI_SS_INACTIVE);
|
|
|
|
/* thread loop */
|
|
while (1)
|
|
{
|
|
/* SS line = ACTIVE = LOW */
|
|
SPIdrv->Control(ARM_SPI_CONTROL_SS, ARM_SPI_SS_ACTIVE);
|
|
/* Transmit some data */
|
|
SPIdrv->Send(testdata_out, sizeof(testdata_out));
|
|
/* Wait for completion */
|
|
evt = osSignalWait(0x01, 100);
|
|
if (evt.status == osEventTimeout) {
|
|
__breakpoint(0); /* Timeout error: Call debugger */
|
|
}
|
|
/* SS line = INACTIVE = HIGH */
|
|
SPIdrv->Control(ARM_SPI_CONTROL_SS, ARM_SPI_SS_INACTIVE);
|
|
|
|
/* SS line = ACTIVE = LOW */
|
|
SPIdrv->Control(ARM_SPI_CONTROL_SS, ARM_SPI_SS_ACTIVE);
|
|
/* Receive 8 bytes of reply */
|
|
SPIdrv->Receive(testdata_in, 8);
|
|
evt = osSignalWait(0x01, 100);
|
|
if (evt.status == osEventTimeout) {
|
|
__breakpoint(0); /* Timeout error: Call debugger */
|
|
}
|
|
/* SS line = INACTIVE = HIGH */
|
|
SPIdrv->Control(ARM_SPI_CONTROL_SS, ARM_SPI_SS_INACTIVE);
|
|
}
|
|
}
|