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void check_ecc_errors(void)
{
    auto *dma = dmaStreamAlloc(STM32_DMA_STREAM_ID(1, 1), 0, nullptr, nullptr);
    uint32_t buf[32];
    uint32_t ofs = 0;
    while (ofs < BOARD_FLASH_SIZE*1024 && FLASH->SR1 == 0 && FLASH->SR2 == 0) {
        __disable_fault_irq();
        dmaStartMemCopy(dma,
                        STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_BYTE |
                        STM32_DMA_CR_MSIZE_BYTE,

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/*
  create a thread that checks for ECC errors in flash. We disable
  fault IRQs in the thread and monitor it from the main thread. If it
  doesn't complete in 1s then erase flash This is the only way I've
  found to check for ECC errors without causing a bus fault or
  unconditionally erasing flash
 */
struct ecccheck {
    const uint32_t *start;
    uint32_t size;

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/*
  create a thread that checks for ECC errors in flash. We disable
  fault IRQs in the thread and monitor it from the main thread. If it
  doesn't complete in 1s then erase flash This is the only way I've
  found to check for ECC errors without causing a bus fault or
  unconditionally erasing flash
 */
struct ecccheck {
    const uint32_t *start;
    uint32_t size;

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/*
  create a thread that checks for ECC errors in flash. We disable
  fault IRQs in the thread and monitor it from the main thread. If it
  doesn't complete in 1s then erase flash This is the only way I've
  found to check for ECC errors without causing a bus fault or
  unconditionally erasing flash
 */
struct ecccheck {
    const uint32_t *start;
    uint32_t size;

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diff -urN lua/lauxlib.c APM/libraries/AP_Scripting/lua/src/lauxlib.c
--- lua/lauxlib.c	2022-12-14 08:41:37.443587208 +1100
+++ APM/libraries/AP_Scripting/lua/src/lauxlib.c	2022-12-14 10:11:20.343728284 +1100
@@ -32,7 +32,6 @@
 #define MAX_SIZET	((size_t)(~(size_t)0))
 #endif
 
-
 /*
 ** {======================================================

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#define STM32_ADC_ADC1_DMA_STREAM      STM32_DMA_STREAM_ID(2, 0)
#define STM32_ADC_ADC1_DMA_CHAN        0
#define STM32_I2C_I2C1_RX_DMA_STREAM   STM32_DMA_STREAM_ID(1, 0) // shared I2C1_RX,UART8_TX
#define STM32_I2C_I2C1_RX_DMA_CHAN     1
#define STM32_I2C_I2C1_TX_DMA_STREAM   STM32_DMA_STREAM_ID(1, 6) // shared I2C1_TX,USART2_TX,TIM4_UP
#define STM32_I2C_I2C1_TX_DMA_CHAN     1
#define STM32_I2C_I2C2_RX_DMA_STREAM   STM32_DMA_STREAM_ID(1, 3) // shared SPI2_RX,I2C2_RX
#define STM32_I2C_I2C2_RX_DMA_CHAN     7
#define STM32_I2C_I2C2_TX_DMA_STREAM   STM32_DMA_STREAM_ID(1, 7)
#define STM32_I2C_I2C2_TX_DMA_CHAN     7

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======================================================================
FAIL: demos/various/RT-Posix-Simulator/Makefile (make all)
----------------------------------------------------------------------
CMD: /usr/bin/env make -C /home/tridge/project/UAV/APM.chibios/modules/ChibiOS/demos/various/RT-Posix-Simulator -f Makefile all

STDOUT:
make[1]: Entering directory '/home/tridge/project/UAV/APM.chibios/modules/ChibiOS/demos/various/RT-Posix-Simulator'
Compiler Options
gcc -c -O2 -ggdb -m32 -ffunction-sections -fdata-sections -fno-common -Wall -Wextra -Wundef -Wstrict-prototypes -Wa,-alms=./build/lst/ -DSIMULATOR -DTEST_CFG_SIZE_REPORT=0 -MD -MP -MF ./.dep/build.d -I. -I./cfg -I../../../os/license -I../../../os/hal/include -I../../../os/hal/boards/simulator -I../../../os/hal/ports/simulator/posix -I../../../os/hal/ports/simulator -I../../../os/hal/osal/rt-nil -I../../../os/rt/include -I../../../os/oslib/include -I../../../os/common/portability/GCC -I../../../os/common/ports/SIMIA32/compilers/GCC -I../../../os/co

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non-debug (-O2):
Dump of assembler code for function __core_init:
   0x08002a50 <+0>:     push    {r4, r5, r6, r7, lr}
   0x08002a52 <+2>:     nop
   0x08002a54 <+4>:     nop
   0x08002a56 <+6>:     nop
   0x08002a58 <+8>:     dsb     sy
   0x08002a5c <+12>:    isb     sy
   0x08002a60 <+16>:    nop
   0x08002a62 <+18>:    nop

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-- a PI controller with feed-forward
local function PIFF(kFF,kP,kI,iMax)
  -- the new instance
  local self = {}

  -- private fields as locals
  local _kFF = kFF
  local _kP = kP or 0.0
  local _kI = kI or 0.0
  local _kD = kD or 0.0

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good:

  0:0:00=0xEA   1:0:03=0x70   2:0:05=0x40   3:0:06=0x01   4:0:07=0x00   5:0:0F=0x00   6:0:10=0x00   7:0:11=0x01
  8:0:12=0x00   9:0:13=0x00  10:0:17=0x00  11:0:19=0x00  12:0:1A=0x01  13:0:1B=0x00  14:0:1C=0x00  15:0:28=0x00 
 16:0:29=0x00  17:0:2D=0x00  18:0:2E=0x74  19:0:2F=0x00  20:0:30=0xA7  21:0:31=0xF7  22:0:32=0xE8  23:0:33=0x00 
 24:0:34=0x27  25:0:35=0x00  26:0:36=0x38  27:0:37=0x00  28:0:38=0x03  29:0:39=0x1C  30:0:3A=0x80  31:0:3B=0x01 
 32:0:3C=0xFC  33:0:3D=0xFF  34:0:3E=0xE8  35:0:3F=0x00  36:0:40=0x7C  37:0:41=0x01  38:0:42=0x00  39:0:43=0x30 
 40:0:44=0x00  41:0:45=0x00  42:0:46=0x00  43:0:47=0x00  44:0:48=0x00  45:0:49=0x00  46:0:4A=0x00  47:0:4B=0x00 
 48:0:4C=0x00  49:0:4D=0x00  50:0:4E=0x00  51:0:4F=0x00  52:0:50=0x00  53:0:51=0x00  54:0:52=0x00  55:0:66=0x00 
 56:0:68=0x00  57:0:69=0x0F  58:0:70=0x00  59:0:71=0x46  60:0:72=0x00  61:0:74=0x0B  62:0:76=0x00  63:1:02=0xB2