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add SPI, not working yet (also need to set SPOL/SPHA etc)

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This commit is contained in:
Edward Emelianov
2026-03-17 23:57:08 +03:00
parent 165780bef9
commit c80f0884f5
13 changed files with 273 additions and 30 deletions
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6
F0:F030,F042,F072/usbcan_gpio/usart.c
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@@ -20,6 +20,7 @@
#include <string.h>
#include "flash.h"
#include "hardware.h"
#include "ringbuffer.h"
#include "usart.h"
@@ -101,13 +102,12 @@ int usart_config(usartconf_t *uc){
if(curUSARTidx != -1) usart_stop(); // disable previous USART if enabled
uint8_t No = usartconfig.idx;
volatile USART_TypeDef *U = Usarts[No];
uint32_t peripheral_clock = 48000000;
// Disable USART while configuring
U->CR1 = 0;
U->ICR = 0xFFFFFFFF; // Clear all interrupt flags
// Assuming oversampling by 16 (default after reset). For higher baud rates you might use by 8.
U->BRR = peripheral_clock / (usartconfig.speed);
usartconfig.speed= peripheral_clock / U->BRR; // fix for real speed
U->BRR = peripherial_clock / (usartconfig.speed);
usartconfig.speed = peripherial_clock / U->BRR; // fix for real speed
uint32_t cr1 = 0, cr3 = 0;
textformat = usartconfig.textproto;
monitor = usartconfig.monitor;