STMicroelectronics STM8 User Manual

void GPIO_setup(void)
{
GPIO_DeInit(GPIOC);
GPIO_Init(GPIOC, ((GPIO_Pin_TypeDef)GPIO_PIN_5 | GPIO_PIN_6), GPIO_MODE_OUT_PP_HIGH_FAST);
}
void SPI_setup(void)
{
SPI_DeInit();
SPI_Init(SPI_FIRSTBIT_MSB,
SPI_BAUDRATEPRESCALER_2,
SPI_MODE_MASTER,
SPI_CLOCKPOLARITY_HIGH,
SPI_CLOCKPHASE_1EDGE,
SPI_DATADIRECTION_1LINE_TX,
SPI_NSS_SOFT,
0x00);
SPI_Cmd(ENABLE);
}
MAX72xx.h
#include "STM8S.h"
#define CS_pin GPIO_PIN_4
#define CS_port GPIOC
#define NOP 0x00
#define DIG0 0x01
#define DIG1 0x02
#define DIG2 0x03
#define DIG3 0x04
#define DIG4 0x05
#define DIG5 0x06
#define DIG6 0x07
#define DIG7 0x08
#define decode_mode_reg 0x09
#define intensity_reg 0x0A
#define scan_limit_reg 0x0B
#define shutdown_reg 0x0C
#define display_test_reg 0x0F
#define shutdown_cmd 0x00
#define run_cmd 0x01
#define no_test_cmd 0x00
#define test_cmd 0x01
#define digit_0_only 0x00
#define digit_0_to_1 0x01
#define digit_0_to_2 0x02
#define digit_0_to_3 0x03
#define digit_0_to_4 0x04
#define digit_0_to_5 0x05
#define digit_0_to_6 0x06
#define digit_0_to_7 0x07
#define No_decode_for_all 0x00
#define Code_B_decode_digit_0 0x01
#define Code_B_decode_digit_0_to_3 0x0F
#define Code_B_decode_for_all 0xFF

STMicroelectronics STM8 Specifications

General

Brand	STMicroelectronics
Model	STM8
Category	Microcontrollers
Language	English