STM32F1 SPI1 bugfix (#14679)
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5b2fd3ad86
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a38b9da672
4 changed files with 20 additions and 4 deletions
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@ -201,6 +201,11 @@ void HAL_init(void) {
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#if PIN_EXISTS(LED)
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OUT_WRITE(LED_PIN, LOW);
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#endif
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#if PIN_EXISTS(USB_CONNECT)
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OUT_WRITE(USB_CONNECT_PIN, !USB_CONNECT_INVERTING); // USB clear connection
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delay(1000); // Give OS time to notice
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OUT_WRITE(USB_CONNECT_PIN, USB_CONNECT_INVERTING);
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#endif
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}
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/* VGPV Done with defines
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@ -79,9 +79,19 @@ void spiBegin() {
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* @details
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*/
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void spiInit(uint8_t spiRate) {
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/**
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* STM32F1 APB1 = 72MHz, APB2 = 36MHz, max SPI speed of this MCU if 18Mhz
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* STM32F1 has 3 SPI ports, SPI1 in APB1, SPI2/SPI3 in APB2
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* so the minimum prescale of SPI1 is DIV4, SPI2/SPI3 is DIV2
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*/
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#if SPI_DEVICE == 1
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#define SPI_CLOCK_MAX SPI_CLOCK_DIV4
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#else
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#define SPI_CLOCK_MAX SPI_CLOCK_DIV2
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#endif
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uint8_t clock;
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switch (spiRate) {
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case SPI_FULL_SPEED: clock = SPI_CLOCK_DIV2 ; break;
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case SPI_FULL_SPEED: clock = SPI_CLOCK_MAX ; break;
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case SPI_HALF_SPEED: clock = SPI_CLOCK_DIV4 ; break;
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case SPI_QUARTER_SPEED: clock = SPI_CLOCK_DIV8 ; break;
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case SPI_EIGHTH_SPEED: clock = SPI_CLOCK_DIV16; break;
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@ -148,7 +148,7 @@
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//
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// USB connect control
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//
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#define USB_CONNECT PC13
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#define USB_CONNECT_PIN PC13
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#define USB_CONNECT_INVERTING false
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#define SD_DETECT_PIN PC4
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@ -19,6 +19,7 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#ifndef TARGET_STM32F1
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#error "Oops! Select an STM32F1 board in 'Tools > Board.'"
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@ -102,7 +103,7 @@
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//
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// USB connect control
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//
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#define USB_CONNECT PC13
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#define USB_CONNECT_PIN PC13
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#define USB_CONNECT_INVERTING false
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#define SD_DETECT_PIN PC4
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