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Hardfault handler + FPGA abort/interrupt collision fix

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This commit is contained in:
Jan Käberich 2022-11-19 15:46:17 +01:00
parent 5536d3b89b
commit 6e5f2635d1
6 changed files with 158 additions and 15 deletions
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21
Software/VNA_embedded/Application/Drivers/FPGA/FPGA.cpp
View File

@ -14,6 +14,7 @@ static FPGA::HaltedCallback halted_cb;
static uint16_t SysCtrlReg = 0x0000;
static uint16_t ISRMaskReg = 0x0000;
static uint32_t ADC_samplerate;
static volatile bool busy_reading = false;
using namespace FPGAHAL;
@ -86,6 +87,7 @@ bool FPGA::Configure(uint32_t start_address, uint32_t bitstream_size) {
bool FPGA::Init(HaltedCallback cb) {
halted_cb = cb;
busy_reading = false;
SysCtrlReg = 0;
ISRMaskReg = 0;
// Reset FPGA
@ -180,6 +182,11 @@ void FPGA::DisableInterrupt(Interrupt i) {
WriteRegister(Reg::InterruptMask, ISRMaskReg);
}
void FPGA::DisableAllInterrupts() {
ISRMaskReg = 0x0000;
WriteRegister(Reg::InterruptMask, ISRMaskReg);
}
void FPGA::WriteMAX2871Default(uint32_t *DefaultRegs) {
WriteRegister(Reg::MAX2871Def0LSB, DefaultRegs[0] & 0xFFFF);
WriteRegister(Reg::MAX2871Def0MSB, DefaultRegs[0] >> 16);
@ -259,19 +266,21 @@ static inline int64_t sign_extend_64(int64_t x, uint16_t bits) {
static FPGA::ReadCallback callback;
static uint8_t raw[40];
static FPGA::SamplingResult result;
static bool busy_reading = false;
bool FPGA::InitiateSampleRead(ReadCallback cb) {
if(busy_reading) {
LOG_ERR("ISR while still reading old data");
LOG_ERR("ISR while SPI is busy");
return false;
}
callback = cb;
uint8_t cmd[40] = {0xC0, 0x00};
static uint8_t cmd[40] = {0xC0, 0x00};
// Start data read
Low(CS);
busy_reading = true;
HAL_SPI_TransmitReceive_DMA(&FPGA_SPI, cmd, raw, 40);
if(HAL_SPI_TransmitReceive_DMA(&FPGA_SPI, cmd, raw, 40) != HAL_OK) {
LOG_ERR("Failed to start SPI DMA");
busy_reading = false;
}
return true;
}
@ -313,7 +322,11 @@ void FPGA::StartSweep() {
}
void FPGA::AbortSweep() {
// abort any FPGA operation by pulling sweep pin low
Low(AUX3);
// data transfer of a datapoint might still be active, abort
HAL_SPI_DMAStop(&FPGA_SPI);
busy_reading = false;
}
void FPGA::SetMode(Mode mode) {

1
Software/VNA_embedded/Application/Drivers/FPGA/FPGA.hpp
View File

@ -121,6 +121,7 @@ bool IsEnabled(Periphery p);
void SetWindow(Window w);
void EnableInterrupt(Interrupt i);
void DisableInterrupt(Interrupt i);
void DisableAllInterrupts();
void WriteMAX2871Default(uint32_t *DefaultRegs);
void WriteSweepConfig(uint16_t pointnum, bool lowband, uint32_t *SourceRegs, uint32_t *LORegs,
uint8_t attenuation, uint64_t frequency, SettlingTime settling, Samples samples, bool halt = false, LowpassFilter filter = LowpassFilter::Auto);

1
Software/VNA_embedded/Application/Hardware.cpp
View File

@ -236,6 +236,7 @@ void HW::SetIdle() {
Trigger::SetInput(false);
FPGA::AbortSweep();
FPGA::SetMode(FPGA::Mode::FPGA);
FPGA::DisableAllInterrupts();
FPGA::DisableHardwareOverwrite();
FPGA::Enable(FPGA::Periphery::SourceChip, false);
FPGA::Enable(FPGA::Periphery::SourceRF, false);

48
Software/VNA_embedded/Src/app_freertos.c
View File

@ -88,6 +88,54 @@ void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackTy
/* Private application code --------------------------------------------------*/
/* USER CODE BEGIN Application */
/* The prototype shows it is a naked function - in effect this is just an
assembly function. */
void HardFault_Handler( void ) __attribute__( ( naked ) );
void prvGetRegistersFromStack( uint32_t *pulFaultStackAddress )
{
/* These are volatile to try and prevent the compiler/linker optimising them
away as the variables never actually get used. If the debugger won't show the
values of the variables, make them global my moving their declaration outside
of this function. */
volatile uint32_t r0;
volatile uint32_t r1;
volatile uint32_t r2;
volatile uint32_t r3;
volatile uint32_t r12;
volatile uint32_t lr; /* Link register. */
volatile uint32_t pc; /* Program counter. */
volatile uint32_t psr;/* Program status register. */
r0 = pulFaultStackAddress[ 0 ];
r1 = pulFaultStackAddress[ 1 ];
r2 = pulFaultStackAddress[ 2 ];
r3 = pulFaultStackAddress[ 3 ];
r12 = pulFaultStackAddress[ 4 ];
lr = pulFaultStackAddress[ 5 ];
pc = pulFaultStackAddress[ 6 ];
psr = pulFaultStackAddress[ 7 ];
/* When the following line is hit, the variables contain the register values. */
for( ;; );
}
/* The fault handler implementation calls a function called
prvGetRegistersFromStack(). */
void HardFault_Handler(void)
{
__asm volatile
(
" tst lr, #4 \n"
" ite eq \n"
" mrseq r0, msp \n"
" mrsne r0, psp \n"
" ldr r1, [r0, #24] \n"
" ldr r2, handler2_address_const \n"
" bx r2 \n"
" handler2_address_const: .word prvGetRegistersFromStack \n"
);
}
/* USER CODE END Application */

22
Software/VNA_embedded/Src/stm32g4xx_it.c
View File

@ -85,17 +85,17 @@ void NMI_Handler(void)
/**
* @brief This function handles Hard fault interrupt.
*/
void HardFault_Handler(void)
{
/* USER CODE BEGIN HardFault_IRQn 0 */
/* USER CODE END HardFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_HardFault_IRQn 0 */
/* USER CODE END W1_HardFault_IRQn 0 */
}
}
//void HardFault_Handler(void)
//{
// /* USER CODE BEGIN HardFault_IRQn 0 */
//
// /* USER CODE END HardFault_IRQn 0 */
// while (1)
// {
// /* USER CODE BEGIN W1_HardFault_IRQn 0 */
// /* USER CODE END W1_HardFault_IRQn 0 */
// }
//}
/**
* @brief This function handles Memory management fault.

80
Software/VNA_embedded/VNA_embedded Debug into running system.launch Normal file
View File

@ -0,0 +1,80 @@
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<stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.swv_port" value="61235"/>
<stringAttribute key="com.st.stm32cube.ide.mcu.debug.launch.swv_trace_hclk" value="16000000"/>
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<stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.external_loader" value=""/>
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<stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.frequency" value="0"/>
<booleanAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.halt_all_on_reset" value="false"/>
<stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.log_file" value="/home/jan/Projekte/LibreVNA/Software/VNA_embedded/Debug/st-link_gdbserver_log.txt"/>
<stringAttribute key="com.st.stm32cube.ide.mcu.debug.stlink.low_power_debug" value="disable"/>
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