fruchti/inverse_thermal_camera
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Remove USB, remap a lot of pins

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fruchti 2018-08-04 15:20:55 +02:00
parent 22b6ee1136
commit 04bbaf8e14
11 changed files with 53 additions and 754 deletions
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33
src/ltp1245.c
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@ -25,15 +25,18 @@ static void InitStepper(void)
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;
GPIOA->CRL = (GPIOA->CRL
& ~(0x0f << (4 * PIN_STEPPER_AM))
& ~(0x0f << (4 * PIN_STEPPER_AP))
& ~(0x0f << (4 * PIN_STEPPER_BM))
& ~(0x0f << (4 * PIN_STEPPER_BP)))
| (0x01 << (4 * PIN_STEPPER_AM)) // Output, max. 10 MHz
| (0x01 << (4 * PIN_STEPPER_AP)) // Output, max. 10 MHz
| (0x01 << (4 * PIN_STEPPER_BM)) // Output, max. 10 MHz
| (0x01 << (4 * PIN_STEPPER_BP)) // Output, max. 10 MHz
// PA15 is used for stepper control, so JTAG has to be disabled
AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_1;
GPIOA->CRH = (GPIOA->CRH
& ~(0x0f << (4 * PIN_STEPPER_AM - 32))
& ~(0x0f << (4 * PIN_STEPPER_AP - 32))
& ~(0x0f << (4 * PIN_STEPPER_BM - 32))
& ~(0x0f << (4 * PIN_STEPPER_BP - 32)))
| (0x01 << (4 * PIN_STEPPER_AM - 32)) // Output, max. 10 MHz
| (0x01 << (4 * PIN_STEPPER_AP - 32)) // Output, max. 10 MHz
| (0x01 << (4 * PIN_STEPPER_BM - 32)) // Output, max. 10 MHz
| (0x01 << (4 * PIN_STEPPER_BP - 32)) // Output, max. 10 MHz
;
TIM3->PSC = 72000000 / 100 / LTP1245_MAX_DRIVE_FREQ - 1;
@ -46,9 +49,9 @@ static void InitStepper(void)
static void InitSensors(void)
{
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
RCC->APB2ENR |= RCC_APB2ENR_IOPBEN;
GPIOA->CRL = (GPIOA->CRL
GPIOB->CRL = (GPIOB->CRL
& ~(0x0f << (4 * PIN_HEAD))
& ~(0x0f << (4 * PIN_PAPER)))
| (0x08 << (4 * PIN_HEAD)) // Input with pull-up/pull-down
@ -56,7 +59,7 @@ static void InitSensors(void)
;
// Use pull-ups
GPIOA->BSRR = (1 << PIN_HEAD) | (1 << PIN_PAPER);
GPIOB->BSRR = (1 << PIN_HEAD) | (1 << PIN_PAPER);
}
static void InitDataLines(void)
@ -138,12 +141,12 @@ static void InitThermistor(void)
static bool HasPaper(void)
{
return !(GPIOA->IDR & (1 << PIN_PAPER));
return !(GPIOB->IDR & (1 << PIN_PAPER));
}
static bool HeadDown(void)
{
return !(GPIOA->IDR & (1 << PIN_HEAD));
return !(GPIOB->IDR & (1 << PIN_HEAD));
}
void ActivateHead(int mask)
@ -152,7 +155,7 @@ void ActivateHead(int mask)
while(TIM2->CR1 & TIM_CR1_CEN);
// Set activation pulse width
TIM2->ARR = (PulseWidth / 5) + 1;
TIM2->ARR = (PulseWidth / 10) + 1;
TIM2->CCER = 0;
if(mask & 1)