diff options
Diffstat (limited to 'stm32/z180-stamp-stm32.c')
| -rw-r--r-- | stm32/z180-stamp-stm32.c | 71 |
1 files changed, 37 insertions, 34 deletions
diff --git a/stm32/z180-stamp-stm32.c b/stm32/z180-stamp-stm32.c index 15d732d..7000c53 100644 --- a/stm32/z180-stamp-stm32.c +++ b/stm32/z180-stamp-stm32.c @@ -1,4 +1,7 @@ /* + * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de> + * + * SPDX-License-Identifier: GPL-2.0+ */ #include <stdio.h> @@ -86,26 +89,26 @@ static void clock_setup(void) /* Enable clocks for: GPIO port A (for GPIO_USART1_TX and Button) - GPIO port C (LEDs) + GPIO port C (LEDs) USART1 - TIM16 (RST-Pin) + TIM16 (RST-Pin) TIM1 (IOCS1) */ - rcc_peripheral_enable_clock(&RCC_APB2ENR, - RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN - | RCC_APB2ENR_IOPCEN | RCC_APB2ENR_IOPDEN + rcc_peripheral_enable_clock(&RCC_APB2ENR, + RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN + | RCC_APB2ENR_IOPCEN | RCC_APB2ENR_IOPDEN | RCC_APB2ENR_USART1EN | RCC_APB2ENR_AFIOEN | RCC_APB2ENR_TIM1EN | RCC_APB2ENR_TIM16EN); /* Enable clocks for: TIM3 */ - rcc_peripheral_enable_clock(&RCC_APB1ENR, + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM3EN); /* Enable clocks for: DMA1 */ - rcc_peripheral_enable_clock(&RCC_AHBENR, + rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_DMA1EN); } @@ -129,19 +132,19 @@ static void nvic_setup(void) static void tim3_setup(void) { TIM3_CR1 = TIM_CR1_CMS_EDGE | TIM_CR1_DIR_UP; - + TIM3_CCMR2 = 0 - | TIM_CCMR2_OC4M_FORCE_LOW + | TIM_CCMR2_OC4M_FORCE_LOW /* | TIM_CCMR2_OC4M_FORCE_HIGH */ /* | TIM_CCMR2_OC4M_PWM2 */ - + /* | TIM_CCMR2_OC4PE */ /* | TIM_CCMR2_OC4FE */ | TIM_CCMR2_CC4S_OUT; - + TIM3_CCER = TIM_CCER_CC4E | TIM_CCER_CC4P; - + TIM3_ARR = 48; /* default */ TIM3_CCR4 = 1; /* */ } @@ -154,7 +157,7 @@ static void gpio_setup(void) Remap TIM3 (CH1/PC6, CH2/PC7, CH3/PC8, CH4/PC9) Port D0/Port D1 mapping on OSC_IN/OSC_OUT */ - gpio_primary_remap(AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON, + gpio_primary_remap(AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON, AFIO_MAPR_SPI1_REMAP | AFIO_MAPR_TIM3_REMAP_FULL_REMAP | AFIO_MAPR_PD01_REMAP); @@ -174,7 +177,7 @@ static void gpio_setup(void) void delay_systicks(int ticks) { int start, stop, now; - + start = STK_CVR; stop = start - ticks; if (stop < 0) { @@ -298,13 +301,13 @@ static void key_timerproc() { // key_state = key_state & key_in | (key_state | key_in) & key_in_last; key_state = c | ((key_in_last | key_in) & key_state); - + // key_state = (key_state&key_in_last) | (key_state&key_in) | (key_in_last&key_in); key_press |= c; - + key_in_last = key_in; - + if ((key_state & REPEAT_MASK) == 0) // check repeat function rpt = REPEAT_START; @@ -330,7 +333,7 @@ void sys_tick_handler(void) Stat |= S_10MS_TO; tick_10ms = 0; - + i = led_timer[0]; if (i) led_timer[0] = i - 1; @@ -339,11 +342,11 @@ void sys_tick_handler(void) led_timer[1] = i - 1; key_timerproc(); - + /* Drive timer procedure of low level disk I/O module */ //disk_timerproc(); } - + count_ms++; if (count_ms == 1000) { count_ms = 0; @@ -366,7 +369,7 @@ void rtc_isr(void) void tim3_set(int mode) { uint16_t cc_mode; - + cc_mode = TIM_CCMR2_CC4S_OUT; TIM3_CR1 = TIM_CR1_CMS_EDGE | TIM_CR1_DIR_UP /*| TIM_CR1_OPM */ ; @@ -380,9 +383,9 @@ void tim3_set(int mode) TIM3_CCR4 = mode/2; cc_mode |= TIM_CCMR2_OC4M_PWM2; } - + TIM3_CCMR2 = cc_mode; - + if (mode > 0) TIM3_CR1 |= TIM_CR1_CEN; } @@ -393,17 +396,17 @@ static uint32_t z80_sram_cmp(uint32_t addr, uint32_t length, uint8_t wval, int i { uint8_t rval; int_fast8_t errors = 0; - + DBG_P(1, "SRAM: Check %#.5x byte... ", length); while (length--) { if ((rval = z80_read(addr)) != wval) { - if (errors == 0) { + if (errors == 0) { printf("\nSRAM: Address W R\n" \ " -------------\n"); // 12345 00 11 } printf(" %.5lx %.2x %.2x\n", addr, wval, rval); - + if (++errors > 16 ) break; } @@ -421,7 +424,7 @@ static void z80_sram_fill(uint32_t addr, int length, uint8_t startval, int inc) printf("SRAM: Write %#.5x byte... ", length); //fflush(stdout); while (length--) { z80_write(addr, startval); - ++addr; + ++addr; startval += inc; } printf("Done.\n"); @@ -465,18 +468,18 @@ const char * const qbcat = "Zhe quick brown fox jumps over the lazy cat!"; uint8_t z80_get_byte(uint32_t adr) { uint8_t data; - + z80_request_bus(); data = z80_read(adr), z80_release_bus(); - + return data; } /*--------------------------------------------------------------------------*/ -static void do_10ms(void) +static void do_10ms(void) { for (uint_fast8_t i = 0; i < 2; i++) { switch (led_stat[i].mode) { @@ -696,19 +699,19 @@ int main(void) z80_reset(HIGH); z80_request_bus(); DBG_P(1, "got it!\n"); - + z80_memset(0, 0x76, 0x80000); //z80_sram_fill(0, 512 * 1024, 0x76, 0); z80_sram_cmp(0, (uint32_t)512 * 1024, 0x76, 0); - + z80_load_mem(); z80_reset(LOW); DBG_P(1, "Bus released!\n"); z80_release_bus(); z80_reset(HIGH); DBG_P(1, "Reset released!\n"); - - + + ledset(0, BLINK1, 50); while (1) { |